1994 GMC Yukon Owner's Manual
1994 GMC Yukon Manual
1994 GMC Yukon manual content summary:
- 1994 GMC Yukon | Owner's Manual - Page 1
Manual ... ... ... SUBURBAN - 1994 GMC Yukon | Owner's Manual - Page 2
- 1994 GMC Yukon | Owner's Manual - Page 3
In information manuals from other manufacturerslike body builders or special equipment companies. We urge you to review all these publications carefully. This will help you enjoy safe and trouble-free operation of your vehicle. When it comes to service, keep in mind that your GMC Truck dealer knows - 1994 GMC Yukon | Owner's Manual - Page 4
a French Language Manual: Aux proprietaires cmndiens: Vous pouvez vous procurer un exemplaire de ce guide en francais chez votre concessionaire ou au DGN Marketing Services Ltd., I500 Bonhill Rd., Mississauga, Ontario L5T 1C7. GMCTRUCK General Motors, GM and the GM Emblem, GMC, Yukon and Suburban - 1994 GMC Yukon | Owner's Manual - Page 5
Model Reference This manual covers these models: UTILITY WAGON 111 ... - 1994 GMC Yukon | Owner's Manual - Page 6
section tells you how to adjust the ventilation and comfort controls and how to operate your audio system. Section 4 - Your Driving and the Road Here you'll find helpful information and tips about the road and how to driveunder different conditions. Section 5 - Problems on the Road This section - 1994 GMC Yukon | Owner's Manual - Page 7
a section contains the information you want. SECTION 7:This section of the manual covers the maintenance required for your vehicle. SECTION 8 CUSTOMER ASSISTANCE: This section includes important information about reporting safety defects and gives you details about the "Roadside Assistance" program - 1994 GMC Yukon | Owner's Manual - Page 8
Safety Warnings and Symbols You will find anumber of safety cautions in this book. We use a box with gray background and the word CAUTION to be hurt. You will also find a circle a slash through it in this book. This safety with symbol means "Don't,'' "Don't do this," or "Don't let this happen." vi - 1994 GMC Yukon | Owner's Manual - Page 9
times, this damage would not be covered by your warranty, and it could be costly. But the notice will tell you what to do to help avoid the damage. When you read other manuals original battery: 1 7 Cautron Possible Injury Protect Eyes by Shielding Caustic Battery Acid Could Cause Burns Spark - 1994 GMC Yukon | Owner's Manual - Page 10
are important for and your passengers whenever your you vehicle is driven: I Fasten Safety Belts Door LocWUnlock These symbolshave to do with your lights: Master Lighting Swifch Turn Signal Direction Hazard Warning Flasher Headlight High Beam 0 Lights Parking Running Lights Off Vlll ... - 1994 GMC Yukon | Owner's Manual - Page 11
Washer Rear Window Defogger Ventilating Fan I Hatch Release These symbols are used on warning and indicator lights: I Engine Coolant Temperature Battery Charging System Fuel Engine Oil Pressure BRAKE Brake ANTILOCK 4 Wheel Anti-Lock I RELEASE Parking Brake Release I SHIFT Shift Light ix - 1994 GMC Yukon | Owner's Manual - Page 12
Here are some other symbols you may see: I Fuse Hood Release Lighter Horn X - 1994 GMC Yukon | Owner's Manual - Page 13
things you should not do with safety belts . ...1-2 Seats and Seat Controls ...Frontseats ...1-2 Head Restraints ...1-4 Rearseats ...1-7 Safety Child Restraints ...Larger Children ...Safety Belt Extender ...Checking Your Restraint Systems ...Replacing Safety Belts After a Crash ...1-14 1-17 1-18 - 1994 GMC Yukon | Owner's Manual - Page 14
front seatbacks and head restraints. Front Seats Manual Fronf Seaf If your vehicle has a manual bucket, split bench, or fullbench seat, you can adjust it with this lever at the front of the seat. Slide thelever at the front the seat toward the outerseat support to unlock of it. Using your - 1994 GMC Yukon | Owner's Manual - Page 15
If your vehicle has a power seat on the driver's side,you can adjust it with this switch at the front of the seat. You can use the center switchknob to move the seat where you want it. To raise the seat, move the center switch knob up. To lower the seat, move the center switch knobdown. To move the - 1994 GMC Yukon | Owner's Manual - Page 16
- 1994 GMC Yukon | Owner's Manual - Page 17
is closest to the top of your ears. This position reduces the chance of a neck injury in a crash. Seatback Latches (Reclining Split Bench and Reclining Bucket Seats) The front seatback folds forward to let you access the rear of the vehicle. To fold the seatback forward, lift this lever Lift the - 1994 GMC Yukon | Owner's Manual - Page 18
position, return the seatback to its upright position, then push the whole seat rearward until it latches. After returning the seat to its regular position, try to move the seat with your body, to make sure the seat is locked into place. I A CAUTION: 2. ... .s~ : , 2 g 2.r If any easy entry - 1994 GMC Yukon | Owner's Manual - Page 19
push the seat forward until it stops. To return the seat to its regular position, return the seatback to its upright position, then push the whole seat rearward until it latches. After returning the seat to its regular position, try to move the seat with your body, to make sure the seat is locked - 1994 GMC Yukon | Owner's Manual - Page 20
folding, make sure nothing is under or in front of the seat. When the seat is folded, it will lay flat on the floor. To fold the seat, pull on the lever at the front of the seat cushion marked RELEASE. Then, using the handle at the side of the seatback, pull the seatback forward - 1994 GMC Yukon | Owner's Manual - Page 21
on will lay flat the floor. To fold the seat, push down on the lever at 'he outer side of the I I seatcushionand, using the handle mounted on the side If the seat, pull the seat cushionup and fold it forward. After folding the seat cushion fully forward, push down on the lever again and fold the - 1994 GMC Yukon | Owner's Manual - Page 22
forward on the seatback and up on the seat cushion handle to make sure the seat is locked in place. Also, pull the safety belt buckles out of the seat cushion pockets, so they will be available for rear seat passengers to use. Removable Rear(Third) Seat (Wagon Models) If your vehicle has a rear - 1994 GMC Yukon | Owner's Manual - Page 23
buckle. 1 Then, hang the latch plate end of the belt on the hook at the top of the retractorcover, out of the way. TOremove the seat, fully open rear load doors enter the back the the and of vehicle. Move theseatback release lever, at the right rearof the - 1994 GMC Yukon | Owner's Manual - Page 24
, pull up on the center release handle at the rear of the seat and lift the rear of the seat up, out of the tloor. J Turn the seat sideways and take it out of the vehicle. To put the seat back in, hold the seat sideways and put it into the vehicle. Turn the seat to the forward position and - 1994 GMC Yukon | Owner's Manual - Page 25
. The person wearing the belt could be seriously injured. After installing the seat, always checkto be sure that the safety belts are not twisted and are properly attached. Safety Belts; They're For Everyone This part of the manual tells you how to use safety belts properly. It also tells you some - 1994 GMC Yukon | Owner's Manual - Page 26
In many states and Canadian provinces, the law says to wear safety belts. Here's why: They work. You never know if you'll be in a crash. If you do have a crash, you don't know if it will be a bad one. A few crashes are mild, and some crashes can be so serious that even buckled up a person wouldn't - 1994 GMC Yukon | Owner's Manual - Page 27
Take the simplest "vehicle." Suppose it's just a seat on wheels. 1-15 - 1994 GMC Yukon | Owner's Manual - Page 28
Get it up to speed. Then stop the "vehicle." The rider doesn't stop. The person keeps going until stopped by something. I In a real vehicle, it could be the windshield ... or the instrument panel ... 1-16 - 1994 GMC Yukon | Owner's Manual - Page 29
belts, you slow down as the vehicle does. You get more time to stop. You stop over more distance, and your strongest belts, not instead of them. Every air bag system ever offered for sale has required the use of safety belts. Even if you're in a vehicle that has air bags, you still have to buckle - 1994 GMC Yukon | Owner's Manual - Page 30
40 mph (65 km/h). Safety belts are for everyone. Safety Belt Reminder Light When the key is turned to "Run" or "Start," a light will come on for about eight seconds to remind people to . First, you'll want to know which restraint systems your vehicle has. We'll start with the driver position. - 1994 GMC Yukon | Owner's Manual - Page 31
Driver Position This section describesthe driver's restraint system. Lap-Shoulder Belt The driver has a lap-shoulder belt. Here's how to wear it properly. 1-19 - 1994 GMC Yukon | Owner's Manual - Page 32
door. 2. Adjust the seat (to see how, see "Seats" in the Index) so you can sit UP straight. 3. Pick up the latchplate and pull the belt across you. (On some models, you may hear a clicking sound as the belt is pulled out. The clicking The lap part the belt body are best able to take belt restraining forces. - 1994 GMC Yukon | Owner's Manual - Page 33
Q: What's wrong with this? A: The shoulder belt is too loose. It won't give nearly as much protection this way. 1-23 - 1994 GMC Yukon | Owner's Manual - Page 34
Q: What's wrong with this? 1-22 - 1994 GMC Yukon | Owner's Manual - Page 35
Q: What's wrong with this? A: The belt is over an armrest. 1-23 - 1994 GMC Yukon | Owner's Manual - Page 36
shoulder belt is worn under the arm. It should be worn over the shoulder at all times. A CAUTION: You can be seriouslyinjured if you wear the shoulder belt under your arm. In a crash, your body would move far forward, too which would increase chance of head and neck injury.Also, the the - 1994 GMC Yukon | Owner's Manual - Page 37
Q: What's wrong with this? A: The belt is twisted across the body. A CAUTION: You can be seriously injured a twisted belt. In a crash, you by wouldn't have the full close thedoor, be sure the belt is out of the way. If you slam the door on it, you can damage both the belt and your vehicle. 1-25 - 1994 GMC Yukon | Owner's Manual - Page 38
properly. Right Front Passenger Position The right front passenger's safety belt works the same way as the driver's safety belt. See "Driver Position," earlier this part. in When the lap portion of the belt is pulled out all the way, it will lock. If it does, letit go back all the - 1994 GMC Yukon | Owner's Manual - Page 39
Center Passenger Position Lap Belt If your vehicle has front and rear bench seats, someone can sit in the center positions. When you sit in a center seating position, you have a lap safetybelt, which has no retractor. To make the belt longer, tilt the latch plate and pull it along the belt. 1-27 - 1994 GMC Yukon | Owner's Manual - Page 40
belt is snug. Buckle, position and release it the same way as the lap part of a lap-shoulder belt. If the belt isn't long enough, see "Safety to. Rear Seat Passengers It's very important for rear seat passengers to buckle up! Accident statistics show that unbelted people in the rear seat are hurt - 1994 GMC Yukon | Owner's Manual - Page 41
belt across you. Don't let it get twisted. 2. Push the latch plate intothe buckle until it clicks. If the belt stops before it reaches the buckle, tilt the latch plate and keep pulling until ever had to. To make the lap part tight, pull down on the buckle end of the belt as you pull up on the - 1994 GMC Yukon | Owner's Manual - Page 42
apply force atyour abdomen. This could cause serious or even fatal injuries. The shoulderbelt should go over the shoulder and across the chest. These parts of the body are best able to take belt restraining forces. The safety belt locks if there's a sudden stop ora crash. To unlatch the belt, just - 1994 GMC Yukon | Owner's Manual - Page 43
Children Everyone in a vehicle needs protection! That includes infantsand all children smaller than adult size. I In fact, the law in every state in the United States and in every Canadian province says children to some agemust be restrained while in avehicle. up Smaller Children and Babies 1-31 - 1994 GMC Yukon | Owner's Manual - Page 44
I A CAUTION: Smaller children and babies should always be restrained in a child or infant restraint. The instructions for the restraint will say whether it is the right type and size for your child. A very young child's hip bones so small that a regular - 1994 GMC Yukon | Owner's Manual - Page 45
be secured within the restraint to help reduce the chancepersonal injury. The of instructions that come with the infant or child restraint show you how will to do In that case, you might want to in secure the restraint the front seat in where you can keep an eye on the baby. Wherever you install it - 1994 GMC Yukon | Owner's Manual - Page 46
section about the top strap if the child restraint has one. 1. Put the restraint on the seat. Follow the instructions for the child restraint. 2. Secure the child in the child restraint as the instructions say. 3. Pull out the vehicle's safety belt. Make the belt as long as possible by tilting - 1994 GMC Yukon | Owner's Manual - Page 47
the shoulderbelt while you push down on the child restraint. 7. Push and pull the child restraintin different directions to be sure itis secure. To remove the child restraint, unbuckle thevehicle's safety belt and let just ready to it go back all theway. The safety belt will move freely again and - 1994 GMC Yukon | Owner's Manual - Page 48
in a center seating position, you'll be using the lap belt. See the earlier section about the top strap if the child restraint has one. 1. Make the belt as long as possible by tilting the latch plate and pulling it along the belt. 2. Put the restraint on the seat. Follow the instructions for the - 1994 GMC Yukon | Owner's Manual - Page 49
is secure. If the child restraint isn't secure, turn the latch plate over and buckle it again. Then attach the child restraint properly. To remove the child restraint, just unbuckle the vehicle . Securing a Child Restraint in the Right Front Seat You'll be using the lap-shoulder belt. See - 1994 GMC Yukon | Owner's Manual - Page 50
Pick up the latch plate, and run the lap and shoulder portions of the vehicle's safety belt through or around the restraint. The child restraint instructions will show you how. If the shoulderbelt goes in front of the child's face orneck, put it behind the child restraint. 4. Buckle the belt. Make - 1994 GMC Yukon | Owner's Manual - Page 51
retractor while you push down on the child restraint. 7. Push and pull the child restraint in different directions to be sure it is secure. To remove the child restraint, just unbuckle vehicle's safety beltand let the it goback all theway. The safety belt will move freelyagain and be ready to work - 1994 GMC Yukon | Owner's Manual - Page 52
belt and get the additional restraint a shoulder belt can provide. Accident statistics show that children are safer if they are restrained in the rear seat. But they need to use the safety belts properly. Children who aren't buckled up can be thrown out in a crash. 0 Children who aren't buckled - 1994 GMC Yukon | Owner's Manual - Page 53
close to the child's face or neck? A: Move the child toward the center of the vehicle, but be sure that the shoulder belt still is on the child's shoulder, so that in a crash the child's upper body would have the restraint that belts provide. If the child is so small that - 1994 GMC Yukon | Owner's Manual - Page 54
go in to order it, take the heaviest coat you will wear, so the extender will be long enough for you. The extender will be seat in your vehicle that you choose. Don't let just foryou, and just for the someone else useit, and use it only for the - 1994 GMC Yukon | Owner's Manual - Page 55
this label on the belt near the door opening. If belts are cut ordamaged, replace them.Collision damage alsomay mean you will need to have safety belt or seat parts repaired or replaced. New parts and repairs may be necessary even if the belt wasn't being used at the time of the collision. 1-43 - 1994 GMC Yukon | Owner's Manual - Page 56
under impact forces. If a belt is torn or frayed,get a new one right away. Before replacing any safety belt, see your dealer for the correct part number. You'll need the model year and model number for your vehicle. The model year is on your title and registration. And you can - 1994 GMC Yukon | Owner's Manual - Page 57
Glass and Rear Doors ...Tailgate ...PanelDoors ...Theft ...New Vehicle Break-In ...Ignitionswitch ...Starting Your Gasoline Engine ...Driving Through Deep Standing Water ...Starting Your Diesel Engine ...Automatic Transmission ...Five-Speed Manual Transmission ...Locking Rear Axle ...Parking Brake - 1994 GMC Yukon | Owner's Manual - Page 58
Your Engine While You're Parked ...2-31 ...2-32 Transfercase ...2-33 Front Axle Locking Feature ...2-34 Windows ...2-35 Horn ...2-37 Tiltwheel ...2-37 Four- Headlights and Vehicle Lighting ...2-47 Mirrors ...2-51 SunVisors ...2-53 Turn Signal and Lane Change Indicator Rear Window Wiper and Washer - 1994 GMC Yukon | Owner's Manual - Page 59
Keys 1 The square-shaped key is for the ignition only. 2-3 - 1994 GMC Yukon | Owner's Manual - Page 60
oval-shaped key is for the doors and all other locks. \ \ When a new vehicle is delivered, the dealer removes the plugs from the keys, and of new features that can help prevent theft. But you can have a lot of trouble getting into your vehicle if you ever lock your keys inside. You may even have - 1994 GMC Yukon | Owner's Manual - Page 61
Door Locks There are several waysto lock and unlock your vehicle: From the outside:Use your door key. 2-5 - 1994 GMC Yukon | Owner's Manual - Page 62
at once. Press the switch marked UNLOCK to unlock all the doors at once. On four-door models, the switch on each rear door works only that door's lock. It won't lock (or unlock) all of the doors that's a safety feature. - Leaving Your Vehicle If you are leaving the vehicle, take your keys, open - 1994 GMC Yukon | Owner's Manual - Page 63
Your Doors andHow They Work Side Doors 1 To open the door from the outside, pull the handle up and pull the door open. To open the door from the inside, pull the lever toward you and push the door open. 2-7 - 1994 GMC Yukon | Owner's Manual - Page 64
the seal between the body and the tailgate glass, tailgate, or rear doors f4!" i!: -7ii: :; $ i.i. i . : : : Make sure all windows are shut. Turn the fan on your tailgate glass release switch on the instrument panel. For more information, see ''TailgateElectric Glass Release" in the Index. 2-8 - 1994 GMC Yukon | Owner's Manual - Page 65
toward you. After closing therear glass, pull up on its handle to make sure is locked. it Panel Doors To open the rear panel doors on the wagon model, you must open the right door first. If the dooris locked, insertyour door key in the lock and turn it to the left to unlock it. To open the - 1994 GMC Yukon | Owner's Manual - Page 66
pin. To close thedoors, close the left door first. After securely closing the left door, close the right door. Make sure both doors arelatched securely. To lock the rear doors from outside the vehicle, put your door key in the lock and turn 's door, you'll hear a tone reminding you to remove your - 1994 GMC Yukon | Owner's Manual - Page 67
valuables in a storage area or console. 0 0 0 Lock the console. Lock all the doors gkcept the driver's. Then take the door key with you. New Vehicle ) or 200 so. During this time your brake linings aren't yet broken new in. Hard stops withnew linings can mean premature wear and earlier replacement - 1994 GMC Yukon | Owner's Manual - Page 68
square key lets you turn the ignition switch to fivedifferent positions: 1. OFF 2 2. RUN 3. START 5 4. ACC 5. LOCK ACC (Accessory): ACC lets you use be able to remove your key when the ignition is turned to LOCK. OFF: This position lets you turn off the engine but still turn the steering wheel. - 1994 GMC Yukon | Owner's Manual - Page 69
ignition switch. none of this works, then your service. Key Release Lever The ignition key cannot be removed from the ignition of manual transmission vehicles unless the key release lever is used. To Remove the Key On manual transmission vehicles, turn the key to the LOCK position while pressing - 1994 GMC Yukon | Owner's Manual - Page 70
) only when your vehicle is stopped. Manual Transmission: Hold the clutch pedal to the N ) V8 engine: 1. Without pushing the accelerator pedal, turn your ignition key to START. When the engine starts, let go for longer than seconds at a time 15 will cause your battery to be drained much sooner. And - 1994 GMC Yukon | Owner's Manual - Page 71
towed, see part of this the manual thattells how to do it without damaging your vehicle. See "Towing Your Vehicle" the Index. in Driving Through Deep Standing Water NOTICE: If you drive too quicklythrough deep puddles or standing water, water can come in through your engine's air intake and badly - 1994 GMC Yukon | Owner's Manual - Page 72
in swirling snow with a diesel engine, snow can get into the air intake system. If you keep driving in these conditions the air cleaner may get plugged, causing black smoke and loss of power. In an emergency, if the air cleaner gets plugged with snow, you can remove the air cleaner. Then, drive to - 1994 GMC Yukon | Owner's Manual - Page 73
time will cause your battery to be drained much sooner. Andthe excessive heat can damage your starter motor. 4. If the engine doesnot start after 15 seconds of cranking, turn Running Outof Fuel" (see "Diesel Fuel Requirements and Fuel System'' in the Index). When your engine is cold, let it run for a - 1994 GMC Yukon | Owner's Manual - Page 74
was, to help keep away from moving engine it parts. If you don't, it could be torn and times listed are minimum times. It will not harm either the coolant heater or the vehicle to leave the coolant heater plugged in longer than the times stated. For best results in cold weather, use Number 1-D diesel - 1994 GMC Yukon | Owner's Manual - Page 75
come on when the engine is cold, your vehicle needs service. If your batteries don't have enough charge to start your engine, see "Battery" in the Index. Be sure you have the right oil for your engine, and that you've changed the oil at the proper times. If you use the wrong oil, your engine may be - 1994 GMC Yukon | Owner's Manual - Page 76
In very cold weather, 0°F (- 18OC) or colder, the engine coolant heater can help. You'll get easier starting better fuel economy during engine and warm-up. Usually, the coolant heater should be plugged in a minimum of four hours prior to starting your vehicle. To use the coolant heater: 1. Turn off - 1994 GMC Yukon | Owner's Manual - Page 77
Automatic Transmission There are several different positions for your shift lever. 0 P (Park) This locks your rear wheels. It's the best position to use when you start your engine because your vehicle can't move easily. 2-21 - 1994 GMC Yukon | Owner's Manual - Page 78
0 R (Reverse) Use this gear to back up. I NOTICE: Shifting to"R" (Reverse) while your vehicle moving forward is could damage your transmission. Shift to only after your "R" vehicle is stopped. To rock your vehicle back and forth to get out of snow, ice or sand without damaging your transmission, - 1994 GMC Yukon | Owner's Manual - Page 79
off road driving. Select"D"(third gear) when operating the vehicle under any of these conditions. 0 D (Third Gear) This is like @, but you never go into roads, but then you would also want to use your brakes off and on. If you manually select "2", the transmission will drive in second gear. You - 1994 GMC Yukon | Owner's Manual - Page 80
Five-Speed Manual Transmission This is your shift pattern. and the brake pedal, and shift to Neutral. R (Reverse)-To back up, first press down the clutch pedal. Wait 3-5 seconds for the internal parts to stop spinning the parking brake, when turning off your engine and parking your vehicle. 2- 24 - 1994 GMC Yukon | Owner's Manual - Page 81
Shiff Light If you have a manual transmission, you may have a SHIFT light. This light will show you when to shift to the next higher gear for best fuel economy. When this light comes on, you can shift to the next higher gear if weather, road and traffic conditions let you. For the best - 1994 GMC Yukon | Owner's Manual - Page 82
or gravel. It works like a standard axle most of the time, but when one of the rear wheels has no traction and the other does, the locking featurewill allow the wheel with traction to move the vehicle. Parking Brake To set the parking brake: Hold the regular brake pedal down with your right foot - 1994 GMC Yukon | Owner's Manual - Page 83
If the ignition is on when the parking brake is released, the brake system warning light will go off. NOTICE: Driving with the parking brake on can cause your rear brakes to overheat. You may have to replace them, and you could also damage other parts your vehicle. of If you are towing a trailer - 1994 GMC Yukon | Owner's Manual - Page 84
Shifting Into "P" (Park) (Automatic Transmission Models Only) Steering ColumnShift Lever 1. Hold the brake pedal down with your right foot and set the parking brake. 2. Move the shift lever into "P" (Park) position like this: Pull the lever toward you. 0 Move the lever up as far as it will go. - 1994 GMC Yukon | Owner's Manual - Page 85
Remove parking brake is firmly set before you leave it. If you have four-wheel drive with a manual transfer transmission into "P" (Park) properly, the weight of the vehicle may put too much set the parking brake and then shift into "P" (Park) properly before you leave the driver's seat. To find out - 1994 GMC Yukon | Owner's Manual - Page 86
get outof your vehicle, put your manual transmission in "R" (Reverse), turn off the engine, and firmly apply the parking brake . If you have four-wheel drive A CAUTION: Things that can burn could touch hot exhaust parts your under vehicle and ignite. Don't park over papers, leaves, dry grass or other - 1994 GMC Yukon | Owner's Manual - Page 87
Engine Exhaust Running Your Engine While You're Parked (Automatic Transmission) '2-31 - 1994 GMC Yukon | Owner's Manual - Page 88
. To get themost satisfaction out of four-wheel drive, you must be familiar with it's operation. Read the part that follows before using four-wheel drive. You should use 2H for most normal driving conditions. Rear-wheel antilock brakes do not work when you shift into four-wheel drive. Your rcgular - 1994 GMC Yukon | Owner's Manual - Page 89
indicator near the lever shows you the transfer case settings. . 4L 2H 4H The front axle portion of the indicator diagram will light up when you shift into four-wheel drive. L does not light up, or if the front axle light does not go out after you shift out of four-wheel drive, have your - 1994 GMC Yukon | Owner's Manual - Page 90
you shift. In extremely cold weather it may be Axle Locking Feature The front axlelocks and unlocks automatically when you shift the transfer case. Some delay for the axle to lock or unlock is normal. If the outside temperature is very hot, or the vehicle has been used under hard driving conditions - 1994 GMC Yukon | Owner's Manual - Page 91
Windows To open your manual windows, turn the hand crank on each door to raise or lower your side door windows. If you have the optional power windows, the controls are on each o f the side doors. The driver's door has a switch for the passenger windows as well. Your power windows will work when - 1994 GMC Yukon | Owner's Manual - Page 92
tailgate glass release, see the caution under "Tailgate Glass, Tailgate and Rear Doors" in this section. The electric hatch release button, located below the headlight or "N"(Neutra1) for the release to work. With a manual transmission, you must apply the parking brake for the release to work. 2-36 - 1994 GMC Yukon | Owner's Manual - Page 93
in the center of the steering wheel. The pad has a horn symbol on it. Tilt Wheel (Option) A tilt steering wheel allows you to adjust the steering togive your legs more room when you exit and enter the vehicle. To adjust thetilt steering wheel: I 0 While holding the steering wheel, pull the - 1994 GMC Yukon | Owner's Manual - Page 94
Multifunction Lever The lever on the left side of the steering column includes your: Turn Signal and Lane Change Indicator 0 Headlight High-Low Beam & Passing Signal Windshield Wipers Windshield Washer Cruise Control (Option) 2-38 - 1994 GMC Yukon | Owner's Manual - Page 95
) positions. These positions allow you to signal a turn or a lane change. To signal a turn, move the lever all the way up or down. When the turn is finished, the leverwill return automatically. I instrument panel will flash in the direction of the turn or lane change. A green arrow on the To - 1994 GMC Yukon | Owner's Manual - Page 96
-Low Beam To change the headlights from low beam to high or high to low, pull the turn signal lever all the way toward you. Then release it. When the high beams are on, this blue light on the instrument panel also will be on. J Windshield Wipers You control the windshield wipers by - 1994 GMC Yukon | Owner's Manual - Page 97
For a single wiping cycle, turn the band to MIST. Hold it there until the wipers start, then rain or snow. Turn the band to choose the delay time. The closer to LO, the shorter the delay. For steady wiping at low speed, turn the band to the LO position. For high speed wiping, turn the band further, - 1994 GMC Yukon | Owner's Manual - Page 98
instructions for adding water. Don't mix water with ready-to-use washer fluid. Water can cause the solution to freeze and damage your washer fluid tank and other parts the washer system. of Also, water doesn't clean aswell as washer fluid. 0 Fill your washer fluid tank only full when it's very cold - 1994 GMC Yukon | Owner's Manual - Page 99
When you apply your brakes, the Cruise Control shuts off. A CAUTION: 0 Cruise Control can be dangerous where you can'tdrive safely at a steady speed. So, don't use your Cruise Control - 1994 GMC Yukon | Owner's Manual - Page 100
you set your Cruise Control at a desired speed and then you apply the brake. This, of course, shuts off the Cruise Control. But you don't second, the vehicle will keep going faster until you release the switch or apply the brake. You could be startled and even lose control. So unless you want to go - 1994 GMC Yukon | Owner's Manual - Page 101
reach the lower speed you want, then release it. 0 To slow down in very small amounts, push the button for less than half a second. Each time you do this, you'll go 1 mph (1.6 km/h) slower. Passing Another Vehicle While Using Cruise Control Use the accelerator pedal to increase your speed. When - 1994 GMC Yukon | Owner's Manual - Page 102
.Many drivers find this to be too much trouble and don't use Cruise Control on steep hills. To Get Outof Cruise Control There are two ways to turn off the Cruise Control: Step lightly on the brake pedal or push the clutch pedal, if you have a manual transmission OR; 0 move the Cruise switch to - 1994 GMC Yukon | Owner's Manual - Page 103
. Push the right side of the switch with the off symbol on it to turn off your lights. Turn the dial at the right of the off switch to adjust instrument panel lights. Turning the dial all the way up until it clicks turns on the interior lights. You can switch your headlights from high to low - 1994 GMC Yukon | Owner's Manual - Page 104
means that only the DRL are on. When you turn on your exterior lights, this light will go out. Of course, you may still turn on the headlights any time you need to. To idle your vehicle with the DRL off, set the parking brake. The DRL will stay off until you release the - 1994 GMC Yukon | Owner's Manual - Page 105
open the doors or tailgate. can YOU also turn the dome lights by turning the interior light dimmer dial they on all way up until it clicks. You off. To turn the lightsoff, just press the side the switchmarked OFF. To of return the lights to automatic operation, the sidemarked AUTO. press Reading - 1994 GMC Yukon | Owner's Manual - Page 106
If your vehicle has an overhead console with reading lights, they can be swiveled to point in the direction you want. To turn the light on, press the button next to the light with the master lighting switch symbol on it. Press the button again to turn the light off. Underhood Reel Light If - 1994 GMC Yukon | Owner's Manual - Page 107
When you are done using the light, reel the cord back into the housing by tuming the handle. hook the Then, slide the light into the holder. Press PUSH on the lever to light into the holder. Mirrors lnside Mirror Push orpull the - 1994 GMC Yukon | Owner's Manual - Page 108
they can beadjusted to point where you want from insidethe vehicle. I Select the mirror you d want to move by moving the center of the switch, located on the driver's door armrest, to R (right) or L (left). Then, adjust the mirror angle by pressing the outer arrows on the switch until the mirror is - 1994 GMC Yukon | Owner's Manual - Page 109
Convex Outside Mirror Your right side mirror may be convex. A convex mirror's surface is curvedso you can see more from the driver's seat. Sun Visors I To block out glare, can swing down the you visors. You can also swing them out to help block glare at the front - 1994 GMC Yukon | Owner's Manual - Page 110
has lights, they will come on when you lift the mirror cover. Rear Window Wiper and Washer The rearwindow wiperlwasher switch is on your instrument panel, to the right of the steering wheel. 2-54 - 1994 GMC Yukon | Owner's Manual - Page 111
under DELAY to the center of the rear wiper front ashtray is located at the bottom of the instrument panel. Pull on the bottom of the ashtray door to open it. To use the cigarettelighter, push the heating element. and To remove the front ashtray, pull on the front of the ashtray insert. Then - 1994 GMC Yukon | Owner's Manual - Page 112
To use a rear ashtray, pull at the top of the ashtray door to flipthe door open. Storage Compartments Your vehicle has a variety of storage compartments provided for your convenience. Glove Box To open your glove box, press the button down and pull the ' door open. 2-56 - 1994 GMC Yukon | Owner's Manual - Page 113
are provided for your convenience. Center Floor Console Your vehicle may have a console compartment between the bucket seats. To open it, just squeeze the buttons on both sides of the keyhole, and pull up. Use your round key to lock this compartment. Your console also includes ahandy place to - 1994 GMC Yukon | Owner's Manual - Page 114
Your console alsohas a cupholder that slides out, for back the seat passengers to use. Instrument Panel CupHolder If your vehicle has a full or split bench seat, you may have a cup holder attached to the instrument panel. To use the cup holder, pull the handle and slide the cup holder tray out - 1994 GMC Yukon | Owner's Manual - Page 115
Center Overhead Console Your vehicle may have an overhead console. It has storage compartments inside it. Garage Door Opener Compartment If you have a garage door opener, the frontoverhead compartment can be used to conveniently store the opener. To install the garage door opener, first open the - 1994 GMC Yukon | Owner's Manual - Page 116
Center thegarage door opener activation button over the console door button, and press the opener firmly into place. Add one peg at atime until the PUSH button on the compartment door operates the garage door opener, with the compartment door closed, when you push the button marked PUSH. 2-60 - 1994 GMC Yukon | Owner's Manual - Page 117
door opener positioned properly and the right number of pegs in place, you should only have to push the PUSH button slightly to operate the opener. Adjust the position of the garage dooropener and add or remove pegs, as needed, until the opener operates properly. Sunglasses Compartment The center - 1994 GMC Yukon | Owner's Manual - Page 118
Place your sunglasses in the compartment door with the lenses facing out. f Rear Compartment The rear compartment can be used to store a small item, like a book. To open the rear compartment, press the release button located at the rear of the compartment door. 2-62 - 1994 GMC Yukon | Owner's Manual - Page 119
Other Storage Compartments Your vehicle features anumber of storage compartments for convenient storage of often used items Some vehicles have storage areas in the Some modelshave a storage pocket on each of the front doors. You can use the pocket to store a variety of small items. 2-63 - 1994 GMC Yukon | Owner's Manual - Page 120
3. Air Vents 4. Multifunction Lever 5. Tilt Lever 6. Instrument Cluster 7. Gearshift Lever 8. Audio System 9. Comfort Control System 10. Glove Box 11. Audio System 12. Ashtray 13. Rear Window Defogger Switch or Rear Heater Switch 15. Dome Light Override Switch 16. Fuse Panel 17. Parking Brake - 1994 GMC Yukon | Owner's Manual - Page 121
odometer is tamper-resistant. The odometer will show silver lines between the numbers if someone tries to turn it back. You may wonder what happens if it's set at zero, and a label must be put on the driver's door to show the old mileage reading when the new odometer was installed. Trip Odometer - 1994 GMC Yukon | Owner's Manual - Page 122
other parts repair problem with one of your vehicle's functions. As you will see in the details on the next few pages, some warning lights come on briefly when you turn problem with one of your vehicle's functions. Often gages and warning lights work together to let you know when there's a problem - 1994 GMC Yukon | Owner's Manual - Page 123
vehicle's hydraulic brake system is divided into two parts. If one part isn't working, the other part can still work and stop you. For good braking, though, you need both parts working well. If the warning light comes on, there couldbe a brake problem. Have your brake system inspected right away - 1994 GMC Yukon | Owner's Manual - Page 124
have anti-lock brakes and there's a problem with your regular brakes. See "Brake System Warning Light" earlier in this part. Water in Fuel Light The red Water in Fuel light, if you have one, is located near the middle right edge of the instrument cluster, just below the turn signal and lane change - 1994 GMC Yukon | Owner's Manual - Page 125
you have a problem. You should take your vehicle in for service soon. Glow Plugs Light The orange Glow Plugs light,if you have one, is located near the upper right corner of the instrument cluster. If you have a diesel engine, it has a special starting system.An instrument panel Glow Plugs light - 1994 GMC Yukon | Owner's Manual - Page 126
problem with the alternator drive belt, or some other charging system problem. Have it checked right away. Driving while this light is on could drain your battery. If you must drive a short distance with this light on, it helps to turn off all your accessories, such as the radio and air conditioner - 1994 GMC Yukon | Owner's Manual - Page 127
your instrument cluster. SERVICE ENGINE SOON A computer monitors the operation of your fuel, ignition and emission control systems. Thislight should on while you are driving, the computer is indicating that you have a problem. You should take your vehicle in for service soon. NOTICE: If you keep - 1994 GMC Yukon | Owner's Manual - Page 128
problem. Check your various gages to see if they are in the warning zones. If they are, have your vehicle serviced right away. Daytime Running Lights(DRL) Indicator Light (Canada Only) I The green Daytime Running Lights (DRL) Indicator light, if you have one, is located near the upper center manual - 1994 GMC Yukon | Owner's Manual - Page 129
Light The blue Headlight High Beam Indicator light is located near the middle left edge of the instrument cluster. The high beam indicator is on whenever you use your high beam headlights. For more details abouthigh beams, see "HeadlightHigh-Low Beam" earlier in this section. Turn Signal and - 1994 GMC Yukon | Owner's Manual - Page 130
Gages Fuel Gage Standard Cluster -Gas Standard Cluster -Diesel DIESEL FUEL ONLY Tachometer Cluster Tachometer -Gas Cluster -Diesel The fuel gage, when the ignition is on, tells you about how much fuel you have left in your tank. The gage will first indicate - 1994 GMC Yukon | Owner's Manual - Page 131
. If you have been operating your vehicle under normal operating conditions,you should pull off the road, stop your vehicle, and turn off the engine as soon as possible. Hot Coolant Can Burn You Badly! In "Problems on the Road," this manual shows what to do. See "Engine Overheating" in the Index - 1994 GMC Yukon | Owner's Manual - Page 132
30 40 Tachometer Cluster -Gas Tachometer Cluster -Diesel The oil pressure gage shows the engine oil pressure in psi (pounds per square inch) when the engine is running. Canadian vehicles indicate pressure in kPa (kilopascals). Oil pressure may vary with engine speed, outside temperature and - 1994 GMC Yukon | Owner's Manual - Page 133
your vehicle serviced. NOTICE: Damage to your engine from neglected oil problems can be costly and is not coveredby your warranty. Voltmeter Standard Cluster Tachometer Cluster When your engine is not running, but the ignition is on (in the RUN Position), this gage shows your battery's state of - 1994 GMC Yukon | Owner's Manual - Page 134
You can only drive fora short time with the reading in either warning zone. If you must drive, turn off all unnecessary accessories, and have the vehicle serviced as soon as possible. Center High Mount Stop Lamp (CHMSL) Your vehicle has a Center High Mount Stoplamp (CHMSL) located above the - 1994 GMC Yukon | Owner's Manual - Page 135
the roof,place the load in the area over the rear wheels (behind the rear side door wagon models). If on you need to, cuta piece of 3/8 inch plywood to fit used, tie it to the side rail If supports. Tie the load to the cross rails or the side rail supports. the cross Use rails only to keep the load from - 1994 GMC Yukon | Owner's Manual - Page 136
to the cross rails and the side rails or side rail supports. Also tie the load to the bumpers. Do not tie the load so tightly that the cross vehicle along the rear frame crossmember. The harness has a 30 amp. in-line fused battery feed wire and n o connector, and should be wired by a qualified - 1994 GMC Yukon | Owner's Manual - Page 137
If your vehicle has a rear step bumper, it may be equipped with a rear step pad at the center the bumper. Use this pad to improve footing of when you are steppingon the bumper step. If you will be using the bumper to tow a trailer, you must remove the center cutout circleto install the trailer ball - 1994 GMC Yukon | Owner's Manual - Page 138
Notes - 1994 GMC Yukon | Owner's Manual - Page 139
ConditioningSysteln ...3-5 Rear Air Conditioning and Heating Systems (Wagon Models) ...3-8 Rear Window Defogger ...Audiosystems ...FMStereo ...3-1 1 3-12 3-12 AM ... ...3-12 AMStereo ...3-12 How to Operate Your AM ETR@Radio ...3-13 3-1 4 How to Operate Your AM-FM Stereo Audio System and Cassette - 1994 GMC Yukon | Owner's Manual - Page 140
weather, turn the blower fan to HI for a few moments before driving off. This helps clear the intake ducts of snow and moisture, and reduces the chance of fogging the inside of your windows. Keep the air path under the front seats clearof objects. Thishelps air to circulate throughout your vehicle - 1994 GMC Yukon | Owner's Manual - Page 141
If your vehicle does not have air conditioning,there are air vents below the instrument panel. Use the handles below your steering wheel, with the vent symbols on them, to open and close the vents. If your vehicle has air conditioning, you will find airvents in the center andon the sides of your - 1994 GMC Yukon | Owner's Manual - Page 142
heater to reach full output. For more information, See"Engine Coolant Heater" in the Index. Diesel Engine If you idle your diesel engine for a long time when it's cold outside, your heater may blow out cool air. This isnormal. When you increase the engine speed, your heater should blow out warmer - 1994 GMC Yukon | Owner's Manual - Page 143
for cooler air. Fan Control Knob The knob on the right side of the heating system control panel controls the fan speed. The knob has four speed positions. To increase the air flow, turn the knob toward (+). To decrease the air flow, turn it toward (-). Electronic Heating/Air Conditioning System - 1994 GMC Yukon | Owner's Manual - Page 144
at thc same time. Only the ones displaying the current settings will light. Temperature Selector Bar The bar under your system display lets you select the temperature of the air flowing into the passenger area of your vehicle. Press COLD for cooler air and press HOT for warmer air. Release the bar - 1994 GMC Yukon | Owner's Manual - Page 145
in the vent mode. When you turn the air conditionerback on, the system will operate in the mode that you last selected unless the OFF button was pressed. MAX Button If you press the MAX button, the air in your vehicle will be recirculated. With the air conditioner on, MAX will give you maximum - 1994 GMC Yukon | Owner's Manual - Page 146
Depending on the system you have and the setting selected, you can send cooled or heated air to the rear of the vehicle. Rear Air Conditioning (Without Rear Heater) If your vehicle has rear air conditioning (without rear heater), the controls are located above the front and second seats. The front - 1994 GMC Yukon | Owner's Manual - Page 147
the rear air conditioning system, front air conditioning the system must be on. With the front air conditioning system off, the rear system controls can be used to circulate air in the rear of the vehicle. To operate the rear system using the front control, just the knob to the turn blower position - 1994 GMC Yukon | Owner's Manual - Page 148
the temperature knob on the right side of the control panel. For warmer air, turn the knob to the right (red) side,and for cooler air, turn the knob to the left (blue) side. To regulate the air flow location, adjust the center knob on the control panel. Turn the knob toward the left for floor vent - 1994 GMC Yukon | Owner's Manual - Page 149
see lines running panel, just below the heater system. Press the right side of the switch, with the defog symbol on it, until the light in the switch comes on. then release it. The rear window defogger will only work if the ignition switch is turned to RUN. You can turn the defogger off at any time - 1994 GMC Yukon | Owner's Manual - Page 150
your hearing adapts to it. To help avoid hearing loss or damage: Adjust the volume control to the lowest setting. Increase volume slowly until you and power lines. If the noise interferes with your listening, try reducing the treble to lessen the noise. AM Stereo This means the Delco@ system can - 1994 GMC Yukon | Owner's Manual - Page 151
it properly. Added sound equipment may interfere with the radio or other operation of your vehicle's engine, Delco@ systems, and even damage them. And, your vehicle's systems may interfere with the operation of sound equipment that has been added improperly. So, before adding sound equipment, check - 1994 GMC Yukon | Owner's Manual - Page 152
that button, the preset station will return. 0 How to Operate Your AM-FM Stereo Audio System and Cassette Deck To Play The Radio Press the amber PWR button to switch the is off, press the RCL button to display the time. With the ignition in RUN or ACC, press RCL to recall the radio station - 1994 GMC Yukon | Owner's Manual - Page 153
TUNE button. "+" increases radio station frequency; TUNE "-" decreases radiostation frequency. BASS Button Press the BASS button to adjust the bass level. BASS "+" increases the bass; BASS "-" decreases bass. Adjust the TREB and BASS buttons to give a pleasing sound. If a station is weak and noisy - 1994 GMC Yukon | Owner's Manual - Page 154
hour appears on the display. Then, press and hold the SCAN button until the correct minute appears on the display. 0 0 0 After you set the time, the word SET will remain i n the electronic display for a few seconds. Cassette Deck ... "... If you have a cassette deck,it is built to work best - 1994 GMC Yukon | Owner's Manual - Page 155
Press the PWR button on the radio to turn the system on. The radio will play until a cassette is pushed into the cassette entry door (the tape side goes in first.) Once the tape is playing, use the radio control buttons for volume, tone, balance and fade, just as you - 1994 GMC Yukon | Owner's Manual - Page 156
How to Operate Your AM-FM Stereo Audio System and Cassette Deck with Equalizer To Play The Radio Press the amber PWR button to switch the radio on and off. RCL Button When the ignition is off, press the RCL button to display the time. With the ignition in RUN or ACC, press RCL - 1994 GMC Yukon | Owner's Manual - Page 157
country use C-QUAM@to produce stereo, though some do not. If your Delco@ system can get C-QUAM@ signals, your "STEREO" light will come on when you the left and right buttons to adjust the left and right speaker balance. Pressing the top and bottom buttons adjusts the front and rear speaker volume - 1994 GMC Yukon | Owner's Manual - Page 158
on the display. After you set the time, the word SET will remain in the radio to turn the system on. The radio will play until a cassette is pushed into the cassette entry door (the your individual taste. The unit has five separate adjustable frequency ranges. To emphasize a frequency, press - 1994 GMC Yukon | Owner's Manual - Page 159
Cr02 Button For better sound when playing high bias chrome or metal tapes, press the C r 0 2 button. The light in the button will be on while the player is in the C r 0 2 mode. When playing standard tapes, you will get better sound while in the standard mode. If the Cr02 button is lit, press it to - 1994 GMC Yukon | Owner's Manual - Page 160
with it. Cassettes aresubject to wear and the sound quality may degrade over time. Always make sure that the cassettetape is in good condition before you have your tape player serviced. Fixed Mast Antenna The fixedmast antenna can withstand most car washes without being damaged. If the mast should - 1994 GMC Yukon | Owner's Manual - Page 161
about driving on different kinds of roads and in varying weather conditions. We've also included many other useful tips on dsiving . Defensive Driving ...DrunkenDriving ...Control of a Vehicle Braking ...4-5 4-7 Steering ...Steering Tips ...4-7 Off-Road Recovery ...Passing ...Loss of Control - 1994 GMC Yukon | Owner's Manual - Page 162
you is going to brake or turn suddenly. Drunken Driving problem. The Blood Alcohol Content (BAC) of someone who is drinking depends upon four things: 0 How much alcohol is in the drink. The drinker's body weight. The amount of food that is consumed before and during drinking. The lengthof time - 1994 GMC Yukon | Owner's Manual - Page 163
person (3 drank three double martinis ounces or90 ml of liquor each)within an hour, the person's BAC would be close to0.12 percent. A person who consumes food just before or during drinking have a slightly lower will BAC level. 3 HOURS 2 HOURS NUMBER OF MIINKS (a8 in m r ) ue 1 NOUR The law in - 1994 GMC Yukon | Owner's Manual - Page 164
times greater; ata level of 0.15 percent, the chances are twenty-five times greater! And, the body takes about an hour to rid itself of the alcohol in one drink. No amount of coffee ornumber of cold are the brakes, the steering and the accelerator. All three systems have to do their work at the - 1994 GMC Yukon | Owner's Manual - Page 165
the road (wet, dry, of icy); tire tread; and the condition of your brakes. Avoid needless heavy braking. Some people drive in spurts -heavy acceleration followedby heavy braking -rather than keeping pacewith traffic. This is a mistake. brakes may not have time to cool between Your hard stops. Your - 1994 GMC Yukon | Owner's Manual - Page 166
rear wheels. The anti-lock system can change the brake pressure faster than any driver could. The computer is programmed to make the most of available tire and road conditions. You can steer around the obstacle while braking hard. As you brake, your computer keeps receiving updates on wheel speed - 1994 GMC Yukon | Owner's Manual - Page 167
brakes vibrate, or you may notice some noise, but this is normal. Braking in Emergencies Use your anti-lock braking system when you need to. With anti-lock, you can steer and brake at the same time for the vehicle to change its path when you turn the front wheels. If there's no traction, inertia - 1994 GMC Yukon | Owner's Manual - Page 168
there isn't room. That's the time for evasive action steering around the problem. - Your vehicle can perform very well in emergencies like these. First apply your brakes. It is better to remove as much speed as you can from a possible collision. Then steer around the problem, to the left or right - 1994 GMC Yukon | Owner's Manual - Page 169
your vehicle straddles the edge of the pavement. You can turn the steering wheel up to 1/4 turn until the right front tire contacts the pavement edge. Then turn your steering wheel to go straight down the roadway. 1. Edge doubt whatsoever about making a successful pass, wait for a better time. 4-9 - 1994 GMC Yukon | Owner's Manual - Page 170
see a sign up ahead that might indicate a turn or an intersection, delay your pass. A broken center line usually indicates it's all right to pass (providing the road ahead is clear). Never cross a solid line on your side of the lane or a double solid line, even if the road seems empty of approaching - 1994 GMC Yukon | Owner's Manual - Page 171
conditions,and by not "overdriving" those conditions. But skids are always possible. The three types of skids correspondto your vehicle's three control systems. In the braking to slow down and adjust your driving to these conditions. It is important give them a higher center of gravity than ordinary - 1994 GMC Yukon | Owner's Manual - Page 172
guide is for vehicles that have four-wheel drive. Also, see "Anti-lock Brakes the great North American road system behind. Traffic lanes aren't service work done. Be sure you read all the information about your four-wheel drive vehicle in this manual and forward of your rear axle.Put heavier items as - 1994 GMC Yukon | Owner's Manual - Page 173
find other important information in this manual. See "Vehicle Loading," "Luggage . Does your vehicle have a winch? If so, be sure to read the winch instructions. In a remote area, a winch can be handy if you get stuck. But ,and body you'll need to respond to vibrations and vehicle bounce. 4- '13 - 1994 GMC Yukon | Owner's Manual - Page 174
its many different features. Here are some things toconsider. Surface Conditions. Off-roading can take you over hard-packed dirt, gravel, rocks, grass, sand, mud, snow or ice. Each of these surfaces affects the steering,acceleration, and braking of your vehicle in different ways. Depending upon the - 1994 GMC Yukon | Owner's Manual - Page 175
surface, it's especially important to avoid sudden acceleration, sudden turns, or sudden braking. In a way, off-road driving requires a different kind And this is certainly true for off-road driving. At the very time you need special alertness and driving skills, your reflexes, perceptions and - 1994 GMC Yukon | Owner's Manual - Page 176
on the hillside, or will the surface cause tire slipping? 0 Is there a straight path up or down the hill so you won't have to make turning maneuvers? Are there obstructionson the hill that can block your path (boulders, trees, logs or ruts)? What's beyond the hill? Is there a cliff, an embankment - 1994 GMC Yukon | Owner's Manual - Page 177
- 1994 GMC Yukon | Owner's Manual - Page 178
stalling,I try to back down the hill and decidejust I can't do it. What should I do? A: Set the parking brake, put your transmission in "P" (Park) (or the manual transmission in first gear),and turn off the engine. Leave the vehicle and go get some help. Exit on the uphill side and stay clear of - 1994 GMC Yukon | Owner's Manual - Page 179
drag can help your brakes and they won't have to do all the work. Descend slowly, keeping your vehicle under control at all times. Q: Are there ) , or with the clutch pedal depressed in a manual shift . This is called "free-wheeling." Your brakes will have to do all the work and could overheat - 1994 GMC Yukon | Owner's Manual - Page 180
puts more weight on the downhill wheels. This couldcause a downhill slide ora rollover. 0 Surface conditionscan be a problem when you What should I do? A: If you feel your vehicle starting to slidesideways, turn downhill. This should help straighten out the vehicle and prevent the side slipping. - 1994 GMC Yukon | Owner's Manual - Page 181
out on the uphill side, even if the door there is harder to open. If you get good traction. You can't accelerate asquickly, turning is more difficult, and you'll need longer braking distances. It's best to use a and braking. You may want to reduce the air pressure in your tires slightly when - 1994 GMC Yukon | Owner's Manual - Page 182
and difficult braking can cause you to slide out of control. Driving In Water Light rain causes no special off-road driving problems. But damage your axle and other vehicle parts. If the water isn't too deep,then drive through it slowly. At fast speeds, water splashes on your ignition system and - 1994 GMC Yukon | Owner's Manual - Page 183
checked. These substances can cause glazing and uneven braking. Check the body structure, steering, suspension, wheels, tires, and exhaust system for damage. Also, check the fuel lines and cooling system for any leakage. Your vehicle will require more frequent service due to off-road use. Refer to - 1994 GMC Yukon | Owner's Manual - Page 184
bright sunshine you are wise to wear sunglasses. Your eyes will have less trouble adjusting to night. But if you're driving, don't wear sunglasses at the Rain Rain and wet roads can mean driving trouble. On a wet road you can't stop, accelerate or turn as well because your tire-to-road traction isn - 1994 GMC Yukon | Owner's Manual - Page 185
strips of rubber start to separate from the inserts. Driving too fast through large water puddles or even going through some car washes can cause problems,too. The water may affect your brakes. Try to avoid puddles. But if you can't, try to slow down before you hit them. 4-25 - 1994 GMC Yukon | Owner's Manual - Page 186
best advice is to slow down when it is raining. Some Other Rainy Weather Tips Turn on your low-beam headlights - not just your parking lights - to help make you . (See "Tires" in the Index.) City Driving One of the biggest problems with city streets is the amount of traffic on them. You'll want to - 1994 GMC Yukon | Owner's Manual - Page 187
time and energy. (See the next section, "Freeway Driving.") Treat a green light as a warning signal. A traffic light is there because the corner is busy enough to need it. When a light turns the traffic flow. Once you are on the freeway, adjust your speed to the posted limit or to the prevailing - 1994 GMC Yukon | Owner's Manual - Page 188
part of the journey. serviced and maintained, it's ready to go. If it needs service, have it done before starting out. Of course, you'll find experienced and able service ? Fuel, Engine Oil, Other Fluids: safe, trouble-free trip time to avoid a major storm system? Mups: Do you have up-to-date maps? 4- - 1994 GMC Yukon | Owner's Manual - Page 189
Highway Hypnosis Is there actually such a condition as "highway hypnosis'"?Or is it just plain Check your mirrors and your instruments frequently. If you get sleepy, pull off the road into a rest, service, or parking area and take a nap, get some exercise, orboth. For safety, treat drowsiness on the - 1994 GMC Yukon | Owner's Manual - Page 190
also the brakes, tires, cooling system and transmission. These parts can work or mountains. Don't swing wide or cut across the center of the road. Drive at speeds that let you stay see highway signs on mountains that warn of special problems. Examples are long grades, passing or no-passing zones, - 1994 GMC Yukon | Owner's Manual - Page 191
And, if you will be driving under severe conditions,include a small bag of sand, a pieceof old carpet or a coupleof burlap bags to help provide traction. Be sure you properly secure these items in your vehicle. Driving on Snow or Ice Most of the time - 1994 GMC Yukon | Owner's Manual - Page 192
What's the worst time for this? "Wet ice." Very cold snow or icecan be slick and hard to drive on. But wet ice can be even more trouble because it may . Your anti-lock brakes improve your ability to make a hard stop on a slippery road. Even though you have an anti-lock braking system, you'll want to - 1994 GMC Yukon | Owner's Manual - Page 193
some things to do to summon help keep yourself and your passengers safe: Turn on your and hazard flashers.Tie a red cloth toyour vehicle to alert police been stopped by the snow. Put on extra clothing or wrap a blanketaround body you. If you have no blankets or extra clothing, make insulators from - 1994 GMC Yukon | Owner's Manual - Page 194
battery (or batteries) to restart the vehicle, and possibly for signalinglater on with your headlights. Let the heater run for awhile. If you have a diesel engine or manual a transmission in gear while using an power winch may damage the transmission. Use the regular brakes, set the parking brake, - 1994 GMC Yukon | Owner's Manual - Page 195
refer to the manufacturer's or installer's instructions. To engage a power take-off: 1. Set the parking brake. 2, Shift the transmission into "N" -off will start. Using a Transfer Case Mounted Power Take-Off (Manual Transmission) I . Set the parking brake. 2. Shift the transfer case into "N" - 1994 GMC Yukon | Owner's Manual - Page 196
normally would. When you release the clutch, the power take-off will start. Using a Transfer Case Mounted Power Take-Off (Automatic Transmission) I . Set the parking brake. 2. Shift the transfer case into "N" (Neutral). 3. Shift the transmission into "N" (Neutral). 4. Engage the power take-off - 1994 GMC Yukon | Owner's Manual - Page 197
in costly repairs not itself. Trailering means changes in handling, durability, and fuel economy. this section. In it are many time-tested, important trailering tips and safety 800 km) your- new vehicle is driven. Your engine, axle or other parts could be damaged. Then, during the first500 miles (800 - 1994 GMC Yukon | Owner's Manual - Page 198
, Customer Assistance Center, 1908 Colonel Sam Drive, Oshawa, Ontario L1 H 8P7. Weight of the Trailer Tongue The tongue load (A) of any trailer is an important weight to measure because it affects the total or gross weight of your vehicle. The gross vehicle weight (GVW) includes the curb weight of - 1994 GMC Yukon | Owner's Manual - Page 199
a V-shaped foot, your bumper could be damaged in sharp turns. Check the distance from mounted, weight-distributing hitch and sway control of the proper size. This equipment isvery important for proper vehicle loading and good handling when you're driving. Will you have to make any holes in the body - 1994 GMC Yukon | Owner's Manual - Page 200
instructions for the trailer brakes so you'll be able to install, adjust and maintain them properly. Your trailer brake system can tap into your vehicle's hydraulic brake system, but consider the following: 0 Will the trailer brake system feel of handling and braking with the added weight of the - 1994 GMC Yukon | Owner's Manual - Page 201
would when driving your vehicle without a trailer. This can help you avoid situations tnat require heavy braking and sudden turns. Passing You'll need more passing distance up ahead when you're towing a trailer And, because right. Always back up slowly and, if possible, have someone guide you. 4-41 - 1994 GMC Yukon | Owner's Manual - Page 202
curbs, road signs, trees, or other objects. Avoid jerky or sudden maneuvers. Signal well in advance. Turn Signals When Towing Trailer a When you tow a trailer, your vehicle has to have a different turn signal flasher and extra wiring. The green arrows on your instrument panel brakes manual - 1994 GMC Yukon | Owner's Manual - Page 203
. park your rig on a hill, here's how to do it: But if you ever have to I . Apply your regular brakes, but don't shift into " P ' (Park) yet, or in gear for a manual transmission. 2. Have someone place chocks under the trailer wheels. 3. When the wheel chocks are in place, release the regular - 1994 GMC Yukon | Owner's Manual - Page 204
that are especially important in trailer operation are automatic transmission fluid (don't overfill), engineoil, axle lubricant, belt, cooling system, and brake adjustment. Each of these is covered in this manual, and the Index will help you find them quickly. If you're trailering, it's a good - 1994 GMC Yukon | Owner's Manual - Page 205
On The Road Section A . Here you'll find what to do about some problems that can occur on the road . Hazard Warning Flasher ...Other Warning Devices ...Jump Starting ... . 5-2 . 5-3 . 5-3 . 5-7 5-10 5-24 5-24 TowingYourVehicle ...Engine Overheating ...EngineFanNoise ...If a Tire Goes Flat - 1994 GMC Yukon | Owner's Manual - Page 206
let you warn others. They also let police know you have a problem. Your front and rear turn signal lights will flash on and off. But they won't flash if you're braking. Press the button in to make your front and rear turn signals flash on and off. , ,.?.. ". . Your hazard warning flashers work - 1994 GMC Yukon | Owner's Manual - Page 207
of the road about 300 feet (100 m) behind your vehicle. Jump Starting If your battery (or batteries) has run down, you may want to use another vehicle and some jumper cables tostart , even if you have a manual transmission. it And if you have an automatic transmission, won't start that way. 5-3 - 1994 GMC Yukon | Owner's Manual - Page 208
electrical systems. You could be injured if the vehicles roll. Set the parking brake firmly on each vehicle. Put an automatic transmission in "P" (Park) ora manual transmission in "N" (Neutral). If you have a four-wheel-drive vehicle, be sure the transfer case is not in "N" (Neutral). 3. Turn off - 1994 GMC Yukon | Owner's Manual - Page 209
(+) will go to positive (+) and negative (-) will go to negative (-) or a metal engine part. Don't connect (+) to (-) or you'll get a short that would damage the battery and maybe other parts, too. I A CAUTION: Fans or oeher moving engine parts can injure badly. Keep you your hands away from moving - 1994 GMC Yukon | Owner's Manual - Page 210
(-) cable to the good battery's negative (-) cable. Don't let theother end touch anything until the next step. The other end of the negative cable doesn't go to the dead battery. It goes to a heavy unpainted metal part of the vehicle with the dead battery. Good Battery (-) Heavy Metal Engine - 1994 GMC Yukon | Owner's Manual - Page 211
service. Remove Cables in this Order 2 3 1. Heavy Metal Engine Part 2. Good Battery (-) H d 3. Good Battery (+) 4. Dead Battery (+) 12. Remove during towing. Before you do anything, turn on the hazard warning flashers. When you call, tell the towing service: That your vehicle has rear-wheel - 1994 GMC Yukon | Owner's Manual - Page 212
a straight-ahead position, with a clamping device designed for towing service. Do not use the vehicle's steering column lock for t.his. The transmission and transfer case, if you have one, should be in Neutral and the parking brake released. A CAUTION: I A vehicle can fall from a car carrier if - 1994 GMC Yukon | Owner's Manual - Page 213
farther than 50 miles (80 km) or your transmission will be damaged. If these limits must be exceeded, then the rear wheels have to be supported on a dolly. is If your vehicle has the four-wheel drive optionand the transfer case engaged, a dolly must be used under the rear wheels when - 1994 GMC Yukon | Owner's Manual - Page 214
Towing From the Rear Engine Overheating You will find a coolant temperature gage o n your vehicle instrument panel. If you have a diesel engine, you will also find a low coolant light on your instrument panel. 5-10 - 1994 GMC Yukon | Owner's Manual - Page 215
If Steam Is Coming From Your Engine NOTICE: If your engine catches fire because you keep driving no with coolant, your vehicle can badly damaged. The costly repairs be would not be covered by your warranty. 5- 11 - 1994 GMC Yukon | Owner's Manual - Page 216
hear no steam, the problem may not be too so: I . If you have an air conditioner, turn it off. 2. Turn on your heater to full hot at TURN OFF THE ENGINE AND GET EVERYONE OUT OF THE VEHICLE until it cools down. You may decide not to lift the hood but to get service help right away. Cooling System - 1994 GMC Yukon | Owner's Manual - Page 217
level should be at orabove the COLD mark. If it isn't, you may have a leak in the radiator hoses, heater hoses, radiator, water pump or somewhere else in the cooling system. 1 NOTICE: Engine damage from accelerator pedal down. If it doesn't, your vehicle needs service. Turn off the engine. 5-13 - 1994 GMC Yukon | Owner's Manual - Page 218
Add Coolant to the CoolantRecovery Tank If you haven't found a problem yet, but the coolant level isn't at orabove the COLD mark, add a 50/50 mixture of clean water (preferably the proper coolant mix.) NOTICE: In cold weather, water can freeze and crack the engine, radiator, heater core and other - 1994 GMC Yukon | Owner's Manual - Page 219
When the coolant in the coolant recovery tank is at or above the COLD mark, start your vehicle. If the overheat warning continues, there's one more thing you can try. You can add the proper coolant mix directly to the radiator but be sure the cooling system is cool before you do it. 5-15 - 1994 GMC Yukon | Owner's Manual - Page 220
to the Radiator 1. You can remove the radiator pressure cap when the cooling system, including the radiator pressure cap and upper radiator hose, is no longer hot. P : . Turn the pressure cap slowly to the left until it first stops. (Don't press down while turning the pressure cap.) If you hear - 1994 GMC Yukon | Owner's Manual - Page 221
3. Fill the radiator with the proper mix, up to the base of the filler neck. 4. Then fill the coolant recovery tank to the COLD mark. 5. Put the cap back on the coolant recovery tank, but leave the radiator pressure cap off. 5-17 - 1994 GMC Yukon | Owner's Manual - Page 222
the filler neck. 8. Then replace the pressure cap. At any time during this procedure if coolant begins to flow out of the filler neck, reinstall the pressure cap. Be sure the arrows on pressure cap line up like this. Cooling System -Diesel Engines When you decide it's safe to lift the hood, here - 1994 GMC Yukon | Owner's Manual - Page 223
'your vehicle has air conditioning, the auxiliary electric COLD mark. If it isn't, you may have a leak in the radiator hoses, heater hoses, radiator, water pump or somewhere else in the cooling system. A CAUTION: Heater and radiator hoses, and otherengine parts service. Turn off the engine. 5 - 19 - 1994 GMC Yukon | Owner's Manual - Page 224
the Coolant Surge Tank If you haven't found a problem yet, but the coolant level isn't at the COLD mark add a 50/50 mixture of clean water (preferably distilled) and a proper antifreeze at the coolant surge tank, but be sure the cooling system, including the coolant surge tank pressure cap, is cool - 1994 GMC Yukon | Owner's Manual - Page 225
In cold weather, water can freeze and crack the engine, radiator, heater core and other parts. use the recommended coolant. So 1. You can remove the coolant surgetank pressure cap when the cooling system, includingthe coolant surgetank pressure capand upper radiator hose,is no longer hot. 5-21 - 1994 GMC Yukon | Owner's Manual - Page 226
hear a hiss, wait for that to stop. A hiss means there is still some pressure left. 2. Then keep turning the cap, but now push down as you turn it. Remove the pressure cap. 3. Open the air bleed valve located on the thermostat housing. 4. Fill the coolant surge tank with the propermix, up to the - 1994 GMC Yukon | Owner's Manual - Page 227
While filling the surge tank, watch to see if coolant begins to stream out the air bleed valve. When coolant begins to stream out, close the valve. 5-23 - 1994 GMC Yukon | Owner's Manual - Page 228
the cooling system functioning properly. if you maintain your tires properly. If air goes out of a tire, it's remove your foot from the accelerator pedal. Get the vehicle under control by steering the way you want the vehicle to go. It may be very bumpy and noisy, but you can still steer. Gently brake - 1994 GMC Yukon | Owner's Manual - Page 229
Changing a Flat Tire If a tire goes flat, avoid further tire wheel damage by driving slowly to a and level place.Turn on your hazard warning flashers. L Blocked Tire The equipment you'll need is located in the cargo area. You'll also find rear your spare tire there. 5 -25 - 1994 GMC Yukon | Owner's Manual - Page 230
spare tire is mounted on the driver side inside cargo area wall, at the rear of the vehicle First open the tire cover, if y o u have one. Turn the wing nut to the left and takc it, and the adapter, off the bolt. Take the tire o u t of the vehicle and remove the tire cover - 1994 GMC Yukon | Owner's Manual - Page 231
To take the jack out, turn the wing nut to the leftand take itand the retainer off. Take the jack and storage box out and then take the tools out of - 1994 GMC Yukon | Owner's Manual - Page 232
jack and jacking tools are stored in the compartment. To take the jack out, turn the wing nut to the left and take it and the retainer off. Take the will have them handy if needed later. Jacking Tool Storage ~ All Models 1 . Socket 2. Jack Handle 3. Ratchet 4. Jacking Tool Storage Box 5 . Jack - 1994 GMC Yukon | Owner's Manual - Page 233
Jack Storage- Utility Models 1. Retainer 2. Nut 3. Jack - Secure Jack in Vehicle as Shown 4. Jack StorageBox 5. Bracket. Jack Storage- Wagon Models 1. Retainer 4. Jack Storage Box 2. Nut 5. Bracket. 3. Jack - Secure Jack in Vehicle as Shown 5-29 - 1994 GMC Yukon | Owner's Manual - Page 234
Start with the jack, the jack handle and the ratchet. If the flat tire is on the rear of the vehicle, you'll need the jack handle extensions a1so. Attach the jack handle (and jack handle extensions, if needed) to the jack. UP Marking DOWN Marking The ratchet has an UP and a DOWN marking. 5-30 - 1994 GMC Yukon | Owner's Manual - Page 235
the right. " . ,. ,:m j . That will lift the jack head a little. Before raising the vehicle, do the following things. Put your spare tire near the flat tire. Remove the wheel trim. If there is a wheel cover, pry along the edge until it comes off. Be careful; the rim edges may be sharp. Don - 1994 GMC Yukon | Owner's Manual - Page 236
and take them off. Then take the hub cap off. If the wheel has a trim ring, remove it by using the flat end of the wheel wrench. If the wheel has a smooth center piccc or a center piece with recessed nuts, place the flat end of the wheel wrench in the slot on the - 1994 GMC Yukon | Owner's Manual - Page 237
jack,you could bebadly injured or killed. Never get under vehicle when it supported onlyby a jack. a is NOTICE: Raising damage Be sure raising your vehicle to the right. Make sure the UP marking faces you. Use the jack handle extentions if the flat is on the rear of the vehicle. Raise the vehicle - 1994 GMC Yukon | Owner's Manual - Page 238
nuts and take off the flat tire. 1 Remove any rust or dirt from the wheel bolts, mounting surfaces and spare wheel. Place the spare Rust or dirt on the wheel, or on the partsto which it is fastened, can make the wheel nuts become looseafter a time. The wheel could comeoff and cause an - 1994 GMC Yukon | Owner's Manual - Page 239
A CAUTION: Never use oil or grease on studs or nuts. If you do, the nuts might come loose. Your wheel could fall causing a serious off, accident. Replace the wheel - 1994 GMC Yukon | Owner's Manual - Page 240
back on. For vehicles with plastic nut caps, tighten the caps until they are fingertight, then tighten them an additional one-half turn with the ratchet. Remove any wheel blocks. Kemember, the jack and tire must be properly stored in their original storage position before you begin driving again - 1994 GMC Yukon | Owner's Manual - Page 241
your vehicle has them, to the jack using the provided strap. Slide the retainer overthe bolt onto the jack and put the wing nut on. Turn retainer. the nut to the right until it is tight against the Replace the jack storage cover,if your vehicle has one, by simply reversing - 1994 GMC Yukon | Owner's Manual - Page 242
Storing the Tire Be sure the J-bolt is hooked properly for your model or tire size as shown. Tire Storage-Wagon Model If you have a wagon model, use these locations. 1. I-Bolt 2. J-Bolt 3. Carrier 4. Spare Tire 5 . Adapter 6. Nut 7. Cover 8. Use Lower Adapter Hole for 8-Lug Rim Only 5-38 - 1994 GMC Yukon | Owner's Manual - Page 243
Lower Hole and Pin For LT225/245 Tires Put the cover back on the tire if your vehicle has one. Put the tire into the vehicle, over the bolt. Slide the adapter onto the bolt in the proper location for your model, and put the wing nut on. Turn the wing nut - 1994 GMC Yukon | Owner's Manual - Page 244
must usecaution. NOTICE: Spinning your wheels can destroy parts your vehicle as well as of the tires. If . Rocking your vehicle to getout: it First, turn your steering wheel left and right. That will ) and a forward gear (or with a manual transmission, between First orSecond gear and Reverse), - 1994 GMC Yukon | Owner's Manual - Page 245
If you ever get stuck in sand, mud, ice or snow, your vehicle may be equipped with recovery hooks. The recovery hooks are provided at the front of your vehicle. You may need to use them if you're stuck off-road and need to be pulled to some place where you can continue driving. A CAUTION: The - 1994 GMC Yukon | Owner's Manual - Page 246
NOTICE: Never use the recovery hooks to tow the vehicle. vehicle Your could be damaged and it would not be covered warranty. by 5-42 - 1994 GMC Yukon | Owner's Manual - Page 247
care. Service ...Fuel (Gasoline Engines) ...Diesel Fuel Requirements and Fuel System ...Checking Things Under the Hood ...HoodRelease ...Cleaning Your Diesel Engine ...Engine Oil (Except Diesel) ...Engine Oil (Diesel Engines) ...Aircleaner ...Automatic Transmission Fluid ...Manual Transmission - 1994 GMC Yukon | Owner's Manual - Page 248
Brake System Parts ...646 Brake Master Cylinder Other Maintenance Items ...Lubrication ...Battery ...6-46 6-48 649 Bulb Replacement ...6-50 Fuses and Circuit Breakers ...6-56 Exhaust System ...Vehicle Identification Number ...Service Parts Identification Label ...Specification Charts ... 6-2 - 1994 GMC Yukon | Owner's Manual - Page 249
genuine GM parts and GM-trained and supported service people. We hope you'll want to keep your GM vehicle all GM. Genuine GM parts have one of these marks: Doing Your Own Service Work If you want to do some of your own service work, you'll want to get the proper GM Service Manual. It tells - 1994 GMC Yukon | Owner's Manual - Page 250
manual, "Scheduled Maintenance Services", explainsthe maintenance your new vehicle needs, and when it should be done. It also has a form thatyou can use to record the maintenance work done on your vehicle. Be sure to read this information. Fuel (Gasoline Engine] If your vehicle has a diesel engine - 1994 GMC Yukon | Owner's Manual - Page 251
fuelor fuel additives not recommended in this manual could damage your fuel systemand engine. Yourwarranty wouldn't coverthis damage. And: Diesel fuel that has been mixed with engine oil could damage your engine and emission controls. Always check with your service station operator to make sure his - 1994 GMC Yukon | Owner's Manual - Page 252
diesel fuel year-round (above and below freezing conditions)as oil companies blend number 2-D fuel to address climate differences. Numer 1-D diesel damage the fuel injection system. Diesel fuel may foam when Don't try to "top it off." Cold Weather Operation In cold weather (below 20"F, or -7"C), use - 1994 GMC Yukon | Owner's Manual - Page 253
diesel fuel. This can happen if a service station other time, use this chart. "WATER INFUEL" LIGHT CHART Problem Light may be frozen. Open the air bleed valve to check for fuel system and your engine.the light comes on right If after you refuel, it means water was pumped into your fuel tank. Turn - 1994 GMC Yukon | Owner's Manual - Page 254
engineand close the water drain valve. 7. Remove the fuel-resistant container and properly dispose of the contaminated fuel.To find outhow to properly dispose of contaminated diesel fuel see "What to Do withUsed Oil" in the "Engine Oil (Diesel Engines)" part, later in this section. 8. Install the - 1994 GMC Yukon | Owner's Manual - Page 255
be purged to remove water, see your dealer ora qualified technician. Improper purging can damage your fuel system. ~~~~~~ ~~ ~ Running Out of Fuel (Diesel Engines) If need to add up to five gallons of fuel. 2. With the air bleed valve open, turn your ignition key to "Start" for 10 to 15 seconds to - 1994 GMC Yukon | Owner's Manual - Page 256
flow engine parts. You could beburned. Don't let too much fuel from the air bleed valve, and wipe up any spilled fuel with a cloth. 3. Close the air bleed valve. 4. Turn the ignition key to "Start" for 10 to 15 seconds at a time until your engine starts. Fuel Filter Replacement (Diesel Engines) If - 1994 GMC Yukon | Owner's Manual - Page 257
sealing surfaceof the filter head, clean it off. 7. Line up the writing on the top of the filterso it faces (is readable from) the front of the vehicle. Push the element in until the mating surfaces touch. 8. With the air bleed valve open, turn your ignition key to START for 10 to 15 - 1994 GMC Yukon | Owner's Manual - Page 258
your fuel filter and air bleed valve for system can corrode, and your engine oil can deteriorate quickly. Your vehicle's oxygen sensor will be damaged. All of that means costly repairs Sales (NAES) 1908 Colonel Sam Drive Oshawa, Ontario L1H 8P7 Filling Your Tank The fuel cap is behind a hinged door - 1994 GMC Yukon | Owner's Manual - Page 259
on, turn it to the right until you hear a clicking noise. I NOTICE: If you need a new be sure to get the right type.Your dealer cap, can get one for you. If you get the wrong type, it may not or fit have proper venting, and your fuel tank and emissions system might - 1994 GMC Yukon | Owner's Manual - Page 260
To open the hood, first pull the handle inside the vehicle. Then go to the frontof the vehicle and pull up on the secondary hood release, located just to the passenger side of the center of the grill. Lift thehood. Your vehicle, if it has air conditioning, may have a auxiliary engine fan in - 1994 GMC Yukon | Owner's Manual - Page 261
Before closing the hood, be sure all filler caps areon properly. Pull down the hood and close it firmly. Cleaning Your Diesel Engine I NOTICE: If you sprayor pour wateror any other liquid on your engine when it is warm or hot, or when it is running, you - 1994 GMC Yukon | Owner's Manual - Page 262
Engine Oil (Except Diesel) It's a good idea to check your engine oilevery time you get fuel. In order to get an accurate reading, the oilmust be warm and vehicle must be on the level ground. Turn off the engine and give the oil a few minutes to drain back into the oil pan. If you don't, the oil - 1994 GMC Yukon | Owner's Manual - Page 263
put the level somewhere in the proper operating range. Push the dipstick all the way back in when you're through. What Kind of Oil to Use Beginning midyear 1993, oils of the proper quality for your vehicle will be identified with this new "starburst" symbol.The "starburst" symbol indicates that the - 1994 GMC Yukon | Owner's Manual - Page 264
vehicle, as shown in the following chart: LIGHT DUTY EMISSIONS -GAS ENGINES RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST SAE VISCOSITY GRADE OIL FOR THE EXPECTED TEMPERATURE RANGE. HOT WEATHER F + 100 '80 +60 +40 +20 ' LOOK FOR ONE OF - 1994 GMC Yukon | Owner's Manual - Page 265
ONE OF THESE LABELS 7 "C - - +38 - - +27 - - +16 -+4 I - --7 .-18 I €-T I- SAE 1OW-30 PREFERRED above 0°F (-18%) SAE 5W-30 I COLD WEATHER IF NEITHER SAE 5W-30 NOR SAE 1OW-30 GRADE OILS ARE AVAILABLE, SA€ 30 GRADE MAY BE USED AT TEMPERATURES ABOVE 40 DEGREES F (4 DEGREES C). DO NOT USE - 1994 GMC Yukon | Owner's Manual - Page 266
with Light Duty Emissions (8500 GVWR or less) OR SAE 10W-30 -Vehicles with Heavy Duty Emissions (8501 GVWR or more). Energy Conserving II Oils with these words on the container will help you save fuel, These three things are usually included in a doughnut shaped logo (symbol) on most containers - 1994 GMC Yukon | Owner's Manual - Page 267
determines when you change your oil. If time determines when you change your oil, change the filter each time you change your oil. Engine Coolant Heater (Engine Block Heater) An engine coolant heater can a big help if you have to park outside in be very cold weather, 0"F (-1 8°C) or colder. If your - 1994 GMC Yukon | Owner's Manual - Page 268
your used oil, ask your dealer, a service station ora local recycling centerfor help. Engine Oil (Diesel Engines) It's a good idea to check your engine oil level every time you get fuel. In order toget an accurate reading, the oil must be warm and the vehicle must be on level ground. Turn off the - 1994 GMC Yukon | Owner's Manual - Page 269
Add Oil If the oil is at or below the ADD line, then YOU'^^ need to add some oil. But you must use the right kind. This section explains what kind of oil to use. For crankcase capacity, see "Capacitiesand Specifications" in the Index. NOTICE: Don't add too much oil. your enginehas so much oil that - 1994 GMC Yukon | Owner's Manual - Page 270
letters may also be listed, such as SH/CD, CE, CF-4. These letters show American Petroleum Institute (API) levels of quality. NOTICE: If you use oils that don't have these designations, you can cause engine damage which not coveredby your warranty. is 6-24 - 1994 GMC Yukon | Owner's Manual - Page 271
DIESEL ENGINES SELECT THE SAE GRADE OIL BASED O N THE EXPECTED TEMPERATURE RANGE BEFORE NEXT OIL CHANGE HOT WEATHER :F t 100 ;C - +38 +60 - - + 1 6 +32 -- 0 I I SAE 30 0 - - -18 I -20 - - -29 SAE 1OW-30 SAE 15W-40 PREFERRED above 0°F (- 18°C) COLD WEATHER DO NOT USE SAE 1OW-40, SAE - 1994 GMC Yukon | Owner's Manual - Page 272
it in the trash, pouring it on the ground, into sewers, or into streams or bodies of water. Instead, recycle it by taking it to a place that collects used oil. If you have a problem properly disposing of your used oil, ask your dealer, a service station or a local recycling center for help. 6-26 - 1994 GMC Yukon | Owner's Manual - Page 273
Cleaner Refer to the Maintenance Schedule to determinewhen to replace the air filter. See "Scheduled Maintenance Services" in the Index. I NOTICE: If the air cleaneris off, a backfire can cause a damaging engine fire. And, dirt can easily get into your engine, which will damage it. Always have the - 1994 GMC Yukon | Owner's Manual - Page 274
filter on a gas engine ora 6.5 liter naturally aspirated diesel, turn the wing nuts to the left. Remove the cover and change the filter. To remove the air cleaner filter on a 6.5 liter turbocharged diesel, first remove the rubber elbow. Remember to observe the caution about turbocharger blades - 1994 GMC Yukon | Owner's Manual - Page 275
that some the fluid could come out and fall of on hot engine parts exhaust system, startinga fire. Be sure to get or an accurate reading you hot or cold Park your vehicle on a level place. With the parking brake applied, place shift lever in "P" (Park). the With your foot on the brake pedal, move - 1994 GMC Yukon | Owner's Manual - Page 276
1. Flip the handle up and then pull out the dipstick and wipe it with a clean rag or paper . 3. Check both sides of the dipstick, and read the lower level. The fluid level must be in the COLD area for a cold check or inthe HOT area or cross-hatched area for a hot check. 4. If the fluid level is in - 1994 GMC Yukon | Owner's Manual - Page 277
the proper fluid to bring the level up to the COLD areafor a coldcheck or the HOT area for ahot check flip the handle down to lock the dipstick in place. Manual TransmissionFluid When to Check A good time to have out and fall on hot engine partsor exhaust system, starting a fire. sure to get Be an - 1994 GMC Yukon | Owner's Manual - Page 278
1. Remove the filler plug. 2. Add fluid at the filler plug hole. Add only enough fluid to bring the fluid level up to the bottom of the filler plug hole. 3. Install the filler plug. Be sure the plug is fully seated. Hydraulic Clutch The hydraulic clutch in your vehicle is self-adjusting. A slight - 1994 GMC Yukon | Owner's Manual - Page 279
master cylinder reservoir and for the proper fluid. See "Owner Checks and Services" and "Recommended Fluids and Lubricants" in the Index. How to check when it's in place in the reservoir. See the instructions on the reservolr cap. Rear Axle When to Check and Change Lubricant Refer to the - 1994 GMC Yukon | Owner's Manual - Page 280
in the Index. Four- Wheel Drive Most lubricant checks in this section also apply to four-wheel-drive vehicles. However, they have two additional systems that need lubrication. Transfer Case When to Check Lubricant Refer to the Maintenance Schedule to determine how often to check the lubricant. See - 1994 GMC Yukon | Owner's Manual - Page 281
Axle When to Check and Change Lubricant Refer to the Maintenance Schedule to determine how often to check the lubricant and when to change it. See "Scheduled Maintenance Services If the differential is cold, add enough lubricant system and how to add coolant when it is low. If you have a problem - 1994 GMC Yukon | Owner's Manual - Page 282
other parts. Some conditions,such as air trappedin the cooling system, can affect the coolant level in the radiator. Check the coolant level when the engine is cold and follow the steps under "Adding Coolant" for the proper way to add coolant. If you have to add coolant more than four times a year - 1994 GMC Yukon | Owner's Manual - Page 283
coolant recovery tank is located on the passenger sideat the rear cornerof the engine compartment To Check Coolant When your engine is cold, the coolant level should be at COLD, or a little higher. When your engine is warm, the level should be up to HOT, or a little higher. To Add Coolant If - 1994 GMC Yukon | Owner's Manual - Page 284
Adding Coolant -Diesel Engines ..." >CC - . . The coolant surge tank is located on the passenger side atthe rear corner of the engine compartment i ' To Check Coolani When your engine is cold, the coolant level should be at the COLD mark, or a little higher. When your engine is warm, the level - 1994 GMC Yukon | Owner's Manual - Page 285
Radiator Pressure Cap-Gas Engines The radiator pressure cap must be tightly installed with the arrows on the cap lined up with the overflow tube on the radiator filler neck. NOTICE: Your radiator capis a 15 psi (105 kPa) pressure-type cap and must be tightly - 1994 GMC Yukon | Owner's Manual - Page 286
Pressure Cap- Diesel Engines NOTICE: Your surge tank pressure cap a unique 15 psi (105 kPa) is pressure-type cap foruse with surge tank cooling systems only. It must be tightly installed to prevent coolant and possible loss engine damage from overheating. sure the arrows on the cap Be line up with - 1994 GMC Yukon | Owner's Manual - Page 287
with a clean rag. Replace the cap and completely tighten it. Then remove the cap again and look at the fluid level on the dipstick. I When the engine compartment is cool, the level should be at the FULL COLD mark. What toAdd Refer to the Maintenance Schedule to determine what kind of fluid - 1994 GMC Yukon | Owner's Manual - Page 288
. Water can cause the solution to freeze and damage your washer fluid tank andother parts of the washer system. Also,water doesn't cleanas well as washer fluid. 0 Fill your washer fluid tank only 3/4 full whenit's very cold. This allows for expansion, which could damage the tank if it is completely - 1994 GMC Yukon | Owner's Manual - Page 289
won't correct a leak. If you add fluid when your linings are worn, then you'll have too much fluid when you get new brake linings. You should add (or remove) brake fluid, as necessary, only when work is doneon the brake hydraulic system. Refer to the Maintenance Schedule to determine when to check - 1994 GMC Yukon | Owner's Manual - Page 290
container only, and always clean the brake fluid reservoir cap before removing it. @ NOTICE: 0 Don't let someoneput in the wrong kind of fluid. For example, just a few drops of mineral-based oil, suchas engine oil, in your brake system can damage brake system parts so badly that they'll have to - 1994 GMC Yukon | Owner's Manual - Page 291
rear brakes inspected, too. Brake linings should always be replaced as complete axle sets. Brake Pedal Travel See your dealer if the brake pedal does not return to normal height, or if there is a rapid increase in pedal travel. This could be a sign of brake trouble. Brake Adjustment Every time you - 1994 GMC Yukon | Owner's Manual - Page 292
braking. Vehicles we design and test have top-quality GM brake parts in them, as your vehicle does when it is new. When you replace parts of your braking system - for example, when your brake linings travel of the suspension system. When the shock absorbers are serviced, any replacement shock - 1994 GMC Yukon | Owner's Manual - Page 293
windshield. Unlatch the endof the insert from the holding clips. Remove the insert and slide anew one in place. Make sure the blade secured in the clips. is Air Conditioning Every now and then have your dealership checkyour air conditioning system to be sure ithas not lost any cooling ability. If - 1994 GMC Yukon | Owner's Manual - Page 294
, oil, fuel or other fluids. Water dripping from the air conditioning system after body if they are not lubricated. For exposed surfaces, such as door checks, door lock bolts, lockstriker plates, dovetail bumper wedges, etc., a thin film of engine oil should beapplied. The seat adjusters and seat - 1994 GMC Yukon | Owner's Manual - Page 295
to lubricate the handle. See "Recommended Fluids and Lubricants" in the Index for the proper lubricant to use. Baffery Every new GM vehicle has a Delco Freedom@ battery. You never have to add water to one of these. When it's time for anew battery, we recommend a Delco Freedom@ battery. Get one that - 1994 GMC Yukon | Owner's Manual - Page 296
sure that all the lights are off and the engine isn't running. Sealed Beam Headlights 1. Remove the four screws from the headlight retainer. 2 . Pull the headlight out and remove the retainer. 3. Unplug and remove the headlight. 4. Plug in the new headlight and put it in place. 5 . Install the - 1994 GMC Yukon | Owner's Manual - Page 297
with alcohol a suitable or degreaser andwipe the bulb dry. Composite Headlights 1. Remove the two screws at the top of the radiator support. 2. Pull the headlight lens assembly out. s 1 : - 1994 GMC Yukon | Owner's Manual - Page 298
outside edge. 3. Squeeze the tab on the side of the light socket while turning the socket to the left. 4. Pull the socket out of the light assembly. 5. Push in gently on the bulb, turn it to the left and remove it from the socket. 6. Put the new bulb in the socket, gently press - 1994 GMC Yukon | Owner's Manual - Page 299
3. Pull the socket out of the light assembly. 4. Push in gently on the bulb, turn it to the leftand remove it from the socket. 5. Put the new bulb in the socket,gently press in on the bulb and turn it to the right until itis tight. 6. Put the socket back into the light assembly - 1994 GMC Yukon | Owner's Manual - Page 300
it in until it istight. 5. Put the socket back into the side marker assembly and turn it to the right to tighten it. 6. Replace the parkinghrn signal light assembly and tighten the screws. Roof Marker Lights 1. Remove the screws and lift off the lens. 2. Pull the bulb straight out of the socket - 1994 GMC Yukon | Owner's Manual - Page 301
Center High Mount Stoplamp (CHMSL) The individual bulbs in the CHMSL are not replaceable. Seeyour dealer for assistance. Rear Lights 1 . Open the tailgate or rear doors. 2. Remove the two black plastic plugs in the rear light assembly access 3. Remove the two rear light assembly screws inside the - 1994 GMC Yukon | Owner's Manual - Page 302
4. Remove the screws screwdriver when installing the screws. 9. Close the tailgate or rear doors. Fuses and Circuit Breakers The wiring circuits in your vehicle are itself. This greatly reduces the chance of fires caused by electrical problems. See "Fuses and Circuit Breakers'' in the Index for more - 1994 GMC Yukon | Owner's Manual - Page 303
in-line fuse in the battery feed wire. This fuse is near the junctionblock. See "Trailer Wiring Harness" in the Index for more information. Fuse Block The fuseblock is behind a11 access door at the bottom of the instrument panel, next to the parking brake release lever. You can remove fuses with - 1994 GMC Yukon | Owner's Manual - Page 304
engine's air-fuel mixture at a properlevel. Use only unleaded fuel in your vehicle. If you use leadedfuel, you could damage your oxygen sensor (02) and three-way catalytic converter. Diesel Vehicles Below8,5UO LBS. GVWR This system monitors engine speed and throttle position, It adjusts exhaust - 1994 GMC Yukon | Owner's Manual - Page 305
have your system serviced right away. Secondary Air lnjection Reaciion (AIR) System You may have this system. It has a control valve that will direct air to where it is needed. If the AIR system needs service, your Malfunction Indicator (SERVICE ENGINESOON) Lamp on your instrument panel will come - 1994 GMC Yukon | Owner's Manual - Page 306
the GVWR for your vehicle, or the GAWR for eitherthe front or rear axle. And, if you do have a heavy load, you should spread it out. Using heavier suspension components to getadded durability might not change your weight ratings, Ask your dealer tohelp you load your vehicle the right way. NOTICE - 1994 GMC Yukon | Owner's Manual - Page 307
'll get the best performance if you spread out the weight of your load the right way, and if you choose the correct hitch and trailer brakes. For more information, see"Trailer Towing'' in the Tndex. Add-on Equipment When you carry removable items, like snow plow blades, you may need to put - 1994 GMC Yukon | Owner's Manual - Page 308
- Tire Pressure The Certificatioflire label which is on the rear edge of the driver's door, or on the incomplete vehicle document in the cab, shows the correct inflation pressures for your tires, when they're cold. "Cold" means your vehicle has been sitting for at least three hours or driven no more - 1994 GMC Yukon | Owner's Manual - Page 309
the minimum cold inflation pressures for atypical reduced load are printed the "Improved on Ride Tire Pressure"label located on the driver's door. Weigh the Bad wear Bad handling Bad fuel economy. If your tires have too muchair (overinflation),you can get: Unusual wear Bad handling Rough ride - 1994 GMC Yukon | Owner's Manual - Page 310
10 psi (70 kPa) more than the recommended cold inflation pressures. You'll be driving for very long at speeds of Maintenance Schedule. See "Scheduled Maintenance Services" in the Index. n FRT front torear. After the tires have been rotated, adjust the front and rear inflation pressure as shown - 1994 GMC Yukon | Owner's Manual - Page 311
New Tires TREAD WEAR INDICATORS One way to tell when it's time for new tires is to check the treadwear indicators, which will appear when your tires bump, bulge or split. The tire has a puncture, cut, or otherdamage that can't be repaired well because of the size or location of the damage. 0 6-65 - 1994 GMC Yukon | Owner's Manual - Page 312
to give proper endurance, handling, speed rating, traction, ride and other things during normal service on your vehicle. If information relates to the system developed by the conditions on a specified government test course. For example, a tire graded 150 would wear one and a half ( 1 I / 2 ) times - 1994 GMC Yukon | Owner's Manual - Page 313
have poor traction performance. Warning: The traction grade assignedto this tire is based on braking (straight-ahead) traction tests and does not include cornering(turning) traction. Temperature - A, B, C The temperature grades are A (the highest), B, and C, representing the tire's resistance to - 1994 GMC Yukon | Owner's Manual - Page 314
, and wheel nuts for your GM model. NOTICE: The wrong wheel can also cause problems with bearing life, brake cooling, speedometer/odometer calibration, headlight aim, bumper height, vehicle ground clearance, and tire or tire chain clearance to the body and chassis. Used Replacement Wheels 6-68 - 1994 GMC Yukon | Owner's Manual - Page 315
match or get them on a hot part of the vehicle. Some are dangerous if you breathe their fumes in a closed space. When you use anythingfrom a containerto clean your vehicle, be sure to follow the manufacturer's warnings and instructions. And always open your doors or windows when you're cleaning the - 1994 GMC Yukon | Owner's Manual - Page 316
Thinner Turpentine Lacquer Thinner Nail Polish Remover They can all be hazardous - too. NOTICE: Don't use anyof these unless this manual says can. In many you uses, these will damage leather. Here are some cleaning tips: Always read the instructions on the cleaner label. Clean up stains as soon as - 1994 GMC Yukon | Owner's Manual - Page 317
any loose dirt. Always clean a whole trim panel or section. Mask surrounding trim along stitch orwelt lines. Mix Multi-Purpose Powdered Cleaner following the directions should start at the outside of the stain, "feathering"toward the center. Keep changing to a clean section of the cloth. When you clean - 1994 GMC Yukon | Owner's Manual - Page 318
chewing gum, cosmetic creams, vegetable oils, wax crayon, tar and asphalt. Carefully scrape off excess stain. Follow the solvent-type instructions described earlier. Shoe polish, wax crayon, tar and asphalt will stain if left on a vehicle seat fabric. They should be removed as soon as possible. Be - 1994 GMC Yukon | Owner's Manual - Page 319
damp cloth to remove dirt. You may alcohol) and 90% water. Never use oils, varnishes, solvent-based or abrasive cleaners, panel. Sprays containing silicones or waxes may cause annoying reflections in the-windshield and even make it difficult to see through the windshield under certain conditions - 1994 GMC Yukon | Owner's Manual - Page 320
be cleaned often. GM Glass Cleaner (GM Part No. 1050427) or aliquid household glass cleanerwill remove normal tobacco smoke and dust films. Don't your vehicle's finish is to keep it clean by washing it often with lukewarm or cold water. Don't wash your vehicle in the direct rays of the sun. Don't use - 1994 GMC Yukon | Owner's Manual - Page 321
waxing or mild polishing of your vehicle may be necessary to remove residue from the paint finish. You can get GM approved never use auto or chromepolish, steam or caustic soapto clean aluminum. A coating of wax, rubbed to high polish, is recommended for all bright metal parts. Aluminum Wheels - 1994 GMC Yukon | Owner's Manual - Page 322
your dealer's body and paint shop. Underbody Maintenance Chemicals used for iceand snow removal and dust control can collect on the underbody. If these are not removed, accelerated corrosion (rust) can occur on the underbody parts such as fuel lines, frame, floorpan, and exhaust system even though - 1994 GMC Yukon | Owner's Manual - Page 323
repair, at no charge to the owner, the surfaces of new vehicles damaged by this fallout condition within I2 months or 12,000 miles (20 000 km) of purchase, whichever comes first. Appearance Care Materials Chart PART NO. 1050172 SIZE 16 02. PRODUCT (0.473L) Tar and Road Oil Remover USAGE Removes - 1994 GMC Yukon | Owner's Manual - Page 324
Vehicle Identification Number (VIN) This is the legal identifier for your vehicle. It appears on a plate in the front corner of the instrument panel, on the driver's side. You can see itif you look through the windshield from outside your vehicle. The VIN also appears on the Vehicle Certification - 1994 GMC Yukon | Owner's Manual - Page 325
Engine Identification The eighth characterin your VIN is the engine code. Thiscode will help you identify your engine, specifications,and replacement parts. CD CD I- r I- I cv I c3 I _ L -' w II 6-79 - 1994 GMC Yukon | Owner's Manual - Page 326
Service Parts Identification Label You'll find this label on the insideof the glove , and a list of all production options and special equipment. 0 Be sure that this label not removed from the vehicle. is Add-on Electrical Equipment NOTICE: Don't add anything electrical to your vehicle unless - 1994 GMC Yukon | Owner's Manual - Page 327
available at the time of printing, and are subject to change. If a part listed in this manual is not the same as the part used in your Body Injection Engine Identification -Diesel Engines Engine Type VIN Code Fuel System Produced By Emissions 6.5L V8 S Turbo Diesel U.S. LD 6.5L V8 F Turbo Diesel - 1994 GMC Yukon | Owner's Manual - Page 328
the level MUST be checked as outlined under "Engine Cooling System" in Section 5. *All quantities are approximate. Crankcase Oil And Filter Recommendations'' in Section 5. *All quantities are approximate. ?Oil filter should be changed at EVERY oil change. Fuel lank Capacity TYPE Gasoline/Diesel - 1994 GMC Yukon | Owner's Manual - Page 329
-Diesel Engines Engine VIN Oil Filter Air Cleaner 6.5L S" PF1218 A9 17C TP 1006 RC33 6.5L F* PF1218 A9 17C Fuel Filter Surge Tank Cap *Heavy Duty Emission Engine TP 1006 RC33 Air Conditioning Refrigerants Not all air conditioningrefrigerants are the same. If the air conditioning system in - 1994 GMC Yukon | Owner's Manual - Page 330
Fuse Block I 7.5 AMP I BROWN I I 10 AMP I RED I I 15 AMP I BLUE I 6-84 - 1994 GMC Yukon | Owner's Manual - Page 331
Ign. Feed Back-up Lamps, Turn Signals T.C.C., Air Diverter, E.S.C., E.G.R., E.C.M. Ign. R.W.A.L. Brake Switch Throttle Body Injectors A.B.S. Cluster-Speed0 H.V.A.C. 4 . Haz. Flasher, Seat Belt Buzzer, Stop Lmps., A.B.S. Memory Windshield Wiper, Washer Radio Feed Pwr. Windows Door Locks, Rear Window - 1994 GMC Yukon | Owner's Manual - Page 332
. POWER RATING AT 12.8V, WATTS 55/65 HEADLAMPS 2 Headlamp System Halogen (Opt.) 6052 H6054 6052 9005 2 2 2 2 35/65 4 Headlamp System Composite LAMP OR BULB EXTERIOR Front Marker Lamp Front Park and Turn Lamp Rear Parking Lamp Rear Stop and Turn Lamp Backup Lamp 55/65 65 TRADE NO. Roof Marker - 1994 GMC Yukon | Owner's Manual - Page 333
Indicator? Charging System Indicator Lamp Instrument Cluster Illumination -Gage Cluster Instrument ClusterIllumination -Txhometer Cluster Headlamp Beam Indicator Directional Signal Indicator Brake Warning Indicator Safety Belt Warning Check Gages Indicator Malfunction Indicator ("Service Engine Soon - 1994 GMC Yukon | Owner's Manual - Page 334
Notes - 1994 GMC Yukon | Owner's Manual - Page 335
. MaintenanceScheduleI ...7-10 7-12 Maintenance Schedule I1 ...Diesel Engines ...7-14 Maintenance Schedule I ...7-16 Maintenance Schedule TI ...Explanation of Scheduled Maintenance Services ...7-18 Owner Checks and Services ...7-22 Recommended Fluids & Lubricants ...7-25 MaintenanceRecord ...7-27 - 1994 GMC Yukon | Owner's Manual - Page 336
only helps keep your vehicle in good working condition, but also helps the environment. All recommended maintenance procedures are important. Improper vehicle maintenance or the removal of important components can significantly affect the quality of the air we breathe. Improper fluid levels or even - 1994 GMC Yukon | Owner's Manual - Page 337
Services This part tells you the maintenance services that you should have done and the times you should schedule them. Your GM dealer knows your vehicle best and wants you to be happy with it. If you go to your dealer foryour service needs, you'll know that GM-trained and supported conditions will - 1994 GMC Yukon | Owner's Manual - Page 338
VIN Fuel System Emissions '"Light Duty Emissions with 8500 GVWR and below or: *"Heavy Duty Emissions with 8501 GVWR and above +Throttle Body Injection Engine Emissions Classification- Diesel Engines Engine Type VIN 6.5L V8 S Turbo Diesel LD Fuel System Emissions 6.5L V8 F Turbo Diesel HD 7-4 - 1994 GMC Yukon | Owner's Manual - Page 339
and the outside temperatures arebelow freezing. The engine is at low speed most of the time (as in door-to-door delivery, stop-and-go traffic, or commercial use). 0 You operate in dusty areas I1 ONLY if none of the above conditions aretrue. Schedule I1 is shown by a dot ( 0 ) on the chart. 7-5 - 1994 GMC Yukon | Owner's Manual - Page 340
Inspection* Wire ' Plug Spark Engine Timing Check*$ Fuel Tank, Cap and Lines Inspection*$ Engine Accessory Drive (Serpentine) Belt Inspection* Tire and Wheel Rotation** I I I I I Axle Drive Brake Systems Inspection** ~~~~ t t t - * An Emission Control Service ** See "Explanation of Scheduled - 1994 GMC Yukon | Owner's Manual - Page 341
GASOLINE ENGINES WITH LIGHT DUTY EMISSIONS - MAINTENANCESCHEDULE (continued) THE SERVICES SHOWN ON THIS CHART UP TO 60,000 MILES (100 000 km) ARE TO BE DONE AFTER 60,000 MILES AT THE SAME INTERVALS. T0402/T0902 7-7 - 1994 GMC Yukon | Owner's Manual - Page 342
GASOLINE ENGINES WITH LIGHT DUTY EMISSIONS - MAINTENANCE SCHEDULEltf * An Emission Control Service ** See "Explanation of Scheduled Maintenance Services" in the Index. $ The California Air Resources Board has determined that the failure to perform this maintenance item will not nullify the - 1994 GMC Yukon | Owner's Manual - Page 343
GASOLINE ENGINES WITH LIGHT DUTY EMISSIONS - MAINTENANCE SCHEDULE l u (continued) THE SERVICES SHOWN ON THIS CHART UP TO 60,000 MILES (100 000 km) ARE TO BE DONE AFTER 60,000 MILES AT THE SAME INTERVALS. T0403aTT0903a 7-9 - 1994 GMC Yukon | Owner's Manual - Page 344
GASOLINE ENGINES WITH HEAVY DUTY EMISSIONS - MAINTENANCE SCHEDULEff A * An Emission Control Service ** See "Explanation of Scheduled Maintenance Services" it7 the Index. A Noise Emission Control Service W Applicable only to vehicles sold in the United States To determine the emissions - 1994 GMC Yukon | Owner's Manual - Page 345
GASOLINE ENGINES WITH HEAVY DUTY EMISSIONS - MAINTENANCESCHEDULE (continued) THE SERVICES SHOWN ON THISCHART UP TO 60,000 MILES (100 000 km) ARE TO BE DONE AFTER 60,000 MILES AT THE SAME INTERVALS. TO405 7-11 - 1994 GMC Yukon | Owner's Manual - Page 346
GASOLINE ENGINES WITH HEAVY DUTY EMISSIONS - MAINTENANCE SCHEDULE / I f A Noise Emission Control Service 1 Applicable only to vehicles sold in the United States / t To determine the emissions classification of your engine, refer to "Selecting the Proper Maintenance Chart'' in - 1994 GMC Yukon | Owner's Manual - Page 347
GASOLINE ENGINESW/TH HEAVY DUTY EM/SSIONS - MAINTENANCE SCHEDULE lu (continued) 0 0 0 0 0 0 0 0 0 0 THE SERVICES SHOWN ON THIS CHART UP TO 60,000 MILES (100 000 km) ARE TO BE DONE AFTER 60,000 MILES AT THE SAME INTERVALS. TO407 7- 13 - 1994 GMC Yukon | Owner's Manual - Page 348
replacement. Extreme dust and dirt operating conditions(off-road), may require the air filter to be checkedas often as every 300 miles (483km) and replacedas necessary. * An Emission Control Service ** See "Explanation of Scheduled Maintenance Services" in this section. A A Noise Emission Control - 1994 GMC Yukon | Owner's Manual - Page 349
DIESEL ENGINES- MAINTENANCE SCHEDULEtI (continued) THE SERVICES SHOWN ON THIS CHART UP TO 60,000 MILES (100 000 km) ARE TO BE DONE AFTER 60,000 MILES AT THE SAME INTERVALS. T0409rT0909 7-15 - 1994 GMC Yukon | Owner's Manual - Page 350
Underhood Insulation InspectionAH 20 Air Intake System InspectionAH 21 Thermostatically Controlled Engine Cooling Fan CheckAH-Every 12 Months or 22 Exhaust Pressure Regulator Valve Inspection* 23 Tire and Wheel Rotation** 24 Drive Axle Service** 25 Brake Systems Inspection** * An Emission Control - 1994 GMC Yukon | Owner's Manual - Page 351
DIESEL ENGINES - MAINTENANCE SCHEDULElw (continued) - 1994 GMC Yukon | Owner's Manual - Page 352
brake cable guides, rear driveline center splines and front axle propshaft splines, brake pedal springs, and clutch pedal springs at the intervals specified. Ball joints and king pin bushings should not be lubricated unless their temperature is 10°F (-I 2"C), or higher. When the weather is cold - 1994 GMC Yukon | Owner's Manual - Page 353
at the distributor and at the spark plugs. Replace wires as needed. * An Emission Control Service $The California Air Resources services beperformed at the indicated intervals and the maintenance be recorded. ?A fluid loss in these systems may indicate a problem.Have them inspected and repaired - 1994 GMC Yukon | Owner's Manual - Page 354
)*$ - Adjust timing to underhood label specifications. Inspect the inside and outside the distributor cap and of rotor for cracks, carbon tracking and corrosion. Clean or replace needed. as 15. FUEL TANK, CAP AND LINES INSPECTION*$ Inspect the fuel tank,cap and lines for damage or leaks.Remove fuel - 1994 GMC Yukon | Owner's Manual - Page 355
More frequent lubrication may be required on heavy-duty or off-road use. 0 0 * An Emission Control Service ANoise Emission Control Service VApplicable only to vehicles sold in the United States ?A fluid loss in these systems may indicate a problem. Have them inspected and repaired at once. 7-21 - 1994 GMC Yukon | Owner's Manual - Page 356
need to be serviced. When the wheels are removed for rotation, inspect disc brake pads for wear and rotors for surface condition. Also inspect drum brake linings for wear and cracks. Inspect other brake parts, including drums, wheel cylinders, parking brake, etc., at the same time. Remove any rust - 1994 GMC Yukon | Owner's Manual - Page 357
sure you have enough room around the vehicle. 2. Firmly apply both the manual parking brake and the regular brake. See "Brakes" and "Parking Brake" in the Index. Do not use the accelerator pedal. 3. Be ready to turn off the engine immediately if it starts. 4. On automatic transmission vehicles, try - 1994 GMC Yukon | Owner's Manual - Page 358
and Shoulder Belts Condition and Operation Inspect belt system, including webbing, buckles, latch plates, retractors, guide loops and anchors. Have a belt assembly replaced if the webbing has been cut or otherwise damaged. Body Lubrication Service Lubricate all body door hinges with engine oil. Also - 1994 GMC Yukon | Owner's Manual - Page 359
engine, see "Engine Oil" in the Index. Engine Oil -Diesel Engines APT service CF-4/SH. The " brake fluid (GM Part No. 1052535 or equivalent DOT-3 brake fluid). @ Engine Coolant Hydraulic ClutchSystem Hydraulic Brake Systems Parking Brake Cables Power Steering System Chassis Lubricant (GM Part - 1994 GMC Yukon | Owner's Manual - Page 360
2, Category LB or GC-LB. Engine Oil (GM Part No. 1050109 or equivalent). Front Wheel Bearings Propeller Shaft Spline/Universal Joint Automatic Transmission Shift Linkage,FloorShift Linkage, Hood and Door Hinges, Body Door Hinge Pins, Tailgate Hinge and Linkage, Folding Seat, Fuel Door Hinge 7-26 - 1994 GMC Yukon | Owner's Manual - Page 361
Washer SolventGM Optikleen washer solvent (GM Part and Anti-Freeze No. I05 15 I5 or equivalent). Weatherstrip Squeaks Weatherstrip Conditioning Outer Tailgate Handle Pivot Points Spray-A-Squeek (GM 1052277). Part No. Dielectric Silicone Grease (GM Part No. 12345579 or equivalent). Multi-Purpose - 1994 GMC Yukon | Owner's Manual - Page 362
Scheduled Maintenance Services is performed, record the date, odometer reading, services performed (list item numbers) and who performed the services in the appropriate column. In addition, retain copies of your receipts. It is suggested that receipts be kept with your Owner's Manual. Maintenance - 1994 GMC Yukon | Owner's Manual - Page 363
Station Checks It is important for you or a service station attendant to perform these under-hood checks at each fuel fill. 0 0 Check the engine oil level and add if necessary. Check the engine coolant level in the recovery bottle and add if necessary. Check the windshield washer fluid level - 1994 GMC Yukon | Owner's Manual - Page 364
Windshield Washer \ Fluid See Page 6-42. Delco Freedom battery never needs to have water added. See Page 6-49. \Cooling System 9 Fuel For gasoline engines, use 87 octane (or higher) unleaded gasoline on Iy. For diesel engines, 1 use at least D diesel fuel. For fuel tank capacity See Page 6-82. - 1994 GMC Yukon | Owner's Manual - Page 365
how to obtain service publications and how to report any safety defects. Customer Satisfaction Procedure ...8-2 Customer Assistance for the Hearing or Speech Impaired (TDD) ...8-3 GM Participation in BBB AUTO LINE - Alternative Dispute Resolution Program ...8-3 ...8-4 Reporting Safety Defects To - 1994 GMC Yukon | Owner's Manual - Page 366
If the matter has already been reviewed with the Sales, Service, or Parts Manager, contact the owner of the dealership orthe GMC Truck Consumer Relations Manager by calling 1-800-GMC-TRUCK ( 1-800-462-8782, Customer Assistance prompt.) In Canada, contact GM of Canada Customer Assistance Center - 1994 GMC Yukon | Owner's Manual - Page 367
Center. Any hearing or speech impaired customer who has access to a TDD ora conventional teletypewriter (TTY) can communicate with GMC Truck by dialing: In the United States, 1-800-GMC-TKTD (1-800-462-8583). (TDD users in Canada can dial 1-800-263-3830.) GM Participation inBBB AUTO LINE Alternative - 1994 GMC Yukon | Owner's Manual - Page 368
before you resort to AUTO LINE, but you may contact the BBB at any time. The BBB will attempt to resolve the complaint by serving as an intermediary between you and GMC Truck. If this mediation is unsuccessful, an informal hearing will be scheduled where eligible customers may present their case - 1994 GMC Yukon | Owner's Manual - Page 369
OntarioK1 G 352 REPORTING SAFETY DEFECTSTO GENERAL GMC-TRUCK (1-800-462-8782) ,or write: GMC Truck Consumer Relations 3 I E. Judson Street 1607-04 Pontiac, MI 48342-2230 In Canada, please call us at 1-800-263-3777 (French). Or, write: General Motors of Canada Limited Customer Assistance Center - 1994 GMC Yukon | Owner's Manual - Page 370
Assistance Center orcontact your dealer. Courtesy Transportation The GMC Truck Commitment Plus Program offers courtesy transportation for customers when obtaining warranty service. The Courtesy Transportation Program is available toretail purchasers of Commitment Plus eligible 1994 GMC light - 1994 GMC Yukon | Owner's Manual - Page 371
. Others describe inexpensive repairs which, if done on time with the latest parts, may avoid future costly repairs. Some bulletinstell a technician how to repair a new or unexpected condition. Others describe a quicker way to fix your vehicle. They can help a technician service your vehicle better - 1994 GMC Yukon | Owner's Manual - Page 372
Technicians have the equipment, tools, safety instructions, and know-how to do ajob quickly and safely. GMC Truck reserves the right to change these procedures without notice after November. 1992. GMC Truck Service Publications You can get these Product Service Publications by using the order form - 1994 GMC Yukon | Owner's Manual - Page 373
Notes 8-9 - 1994 GMC Yukon | Owner's Manual - Page 374
8016 GLOVE BOX LITERATURE FOR YOUR YUKON AND SUBURBAN Manual Owner's Manual $1 X-9409 0.00 Manual Warranty $ 3.00 Storage al 1994 G Van 1994 P3 Models & P/G Models NATP-9432K 20.00 $1 1994 Safari NATP-9430K $1 20.00 1994 S/T Models 20.00 NATP-9429K $1 Includes: Service Manual, Repair Unit Manual - 1994 GMC Yukon | Owner's Manual - Page 375
r 0 .n .CI C L. 0 u) n aJ ... 3 Z W L 5 u ) t 0 I - .. - 1994 GMC Yukon | Owner's Manual - Page 376
Index Aircleaner ...6-27 Air Conditioning ...35 3 68 . ., Rear(WagonMode1s) ...3-8 6-83 Refrigerant Capacity ...System Controls ...3-8 AntenmFixedMast ...3-22 8-3 Alternative Dispute Resolution Program ...Antilock Brakes (See "Brakes") System Warning Light 2-68 Appearancecare ...6-69 Materials ...6- - 1994 GMC Yukon | Owner's Manual - Page 377
1.4-33. 4-41 Cassette Tape Player (see "Audio Systems" ) Catalytic Converter ...6-58 CertificatiodTire Label ...6-59 Changing a Flat Tire Customer Satisfaction Procedure ...8-2 Daytime Running Li-ghts (Canada Only) ...2-48 Indicator Lights ...2-66 DomeLights ...2-49 Doors ...2-7 Locks ...2-5 Panel - 1994 GMC Yukon | Owner's Manual - Page 378
Driving (continued) Braking ...4-5 Control of A Computer Command Control System ...6-58 Coolant ...6-35 Coolant Temperature Gage ...2-75 Cooling System ...5-12 Crankcase ...6-82 Exhaust ...2-31 FanNoise ...5-24 6-79, 6-8 I Identification ...Leaving Vehicle While Running ...2-31 Oil (See "Oil - 1994 GMC Yukon | Owner's Manual - Page 379
Transmission ...6-28 Brake ...6-44 Capacities ...6-82 Coolant ...5-11 FrontAxle ...6-35 Hydraulicclutch ...6-33 LeakCheck ...6-48 Manual Transmission ...6- ...6-12 Foreign Countries ...6-12 Gage ...2-74 Gasolines for Cleaner Air ...6-5 TankCapacity ...6-82 Fuses and Circuit Breakers ...6-56,6-85 - 1994 GMC Yukon | Owner's Manual - Page 380
Heating System (with A/C) ...3-5 Rear(WagonMode1s) ...3-8 Rear Window Defogger ...3-11 ...3-6 System Controls Heating System ( Instrumentpanel ...Standard Cluster ... 5-40 2-12 6-62 2-64 2-64 J JackandTools ...Removal ...Storage ...Jumpstarting ... 5-26 5-26 5-28 5-3 K KeyReleaseLever ...Keys ... - 1994 GMC Yukon | Owner's Manual - Page 381
L Lights ...2-47 Brake System Warning ...2-67 Bulb Replacement ...6-86 Charging System Light ...2-70 2-71 CheckGagesLight ...Dome ...2-49 Front Parking/Turn Signal ...6-52 Headlights (See "Headlights") Indicator ...2-66 Operation ...2-37 Reading ...2-49 Service Engine Soon ...2.71, 6-59 Rear ...6-55 - 1994 GMC Yukon | Owner's Manual - Page 382
(see "Audio Systems") Rearwindow Defogger ...3-11 Recommended Fluids and Lubricants ...7-25 Recovery Hooks ...5-32 Replacement Parts ...6-81 Reporting Safety Defects ...8-5 Roadsigns ...4-2 Roadside Assistance ...8-5 RockingYourVehicle ...5-40 S SafetyBelts ...1-13 1-18 Adults ...Center Passenger - 1994 GMC Yukon | Owner's Manual - Page 383
Maintenance Services ...747-1 8 Seats ...1-2 Controls ...1-2 Easy Entry Seat ...1-6 ManualFront ...1-2 Power Driver's ...1-3 RearFolding ...1-8 Reclining ...1-5 Removable ...1-10 SeatbackLatches ...1-5 Secondary Air Injection (AIR System) ...6-59 Service Do-It-Yourself ...6-3 Parts Identification - 1994 GMC Yukon | Owner's Manual - Page 384
Four-wheel (See "Four-wheel Drive") ShiftLight ...2-25 Tripodometer ...2-65 V Vehicle Damage Warnings ...vii Identification Number ...6-78 Loading ...4-12,6-59 Storage ...6-49 Symbols ...vii Ventilation System ...3-2 AirVents ...3-3 Tips ...3-2 Voltmeter ...2-77 9 - 1994 GMC Yukon | Owner's Manual - Page 385
W Warning Lights. Gages and Indicators ...2-66 5-3 (Also See "Lights..)Devices. Other ...Wheels Alignment and Tire Balance ...6-67 Aluminum ...6-75 Hub CapsNheel Nut Caps ...5-22 NutTorque ...6-47. 6-81 Replacement ...6-68 UsedReplacement ...6-68 2-35 Windows ...WindshieldWasher ...2-41 2-54 - 1994 GMC Yukon | Owner's Manual - Page 386
X-9409 WE SUPPORT VOLUNTARY TECHNICIAN CERTlFlCATlONTHROUGH National institute for AUTOMOTIVE SERVICE EXCELLENCE Keepwithvehicle at all times. Contains Important Operating,Safety, andMaintenanc.eInstructions. THE STRENGTH OF EXPERIENCE. ""'I TRUCK