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2012 Ford F250 Super Duty Owner Guide 4th Printing - Page 221

2012 Ford F250 Super Duty Manual

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Tires, Wheels and Loading • PSI: Pounds per square inch, a standard unit of air pressure. • Cold inflation pressure: The tire pressure when the vehicle has been stationary and out of direct sunlight for an hour or more and prior to the vehicle being driven for 1 mile (1.6 km). • Recommended inflation pressure: The cold inflation pressure found on the Safety Compliance Certification Label (affixed to either the door hinge pillar, door-latch post, or the door edge that meets the door-latch post, next to the driver's seating position), or Tire Label located on the B-Pillar or the edge of the driver's door. • B-pillar: The structural member at the side of the vehicle behind the front door. • Bead area of the tire: Area of the tire next to the rim. • Sidewall of the tire: Area between the bead area and the tread. • Tread area of the tire: Area of the perimeter of the tire that contacts the road when mounted on the vehicle. • Rim: The metal support (wheel) for a tire or a tire and tube assembly upon which the tire beads are seated. INFLATING YOUR TIRES Safe operation of your vehicle requires that your tires are properly inflated. Remember that a tire can lose up to half of its air pressure without appearing flat. Every day before you drive, check your tires. If one looks lower than the others, use a tire gauge to check pressure of all tires and adjust if required. At least once a month and before long trips, inspect each tire and check the tire pressure with a tire gauge (including spare, if equipped). Inflate all tires to the inflation pressure recommended by Ford Motor Company. WARNING: Under-inflation is the most common cause of tire failures and may result in severe tire cracking, tread separation or "blowout", with unexpected loss of vehicle control and increased risk of injury. Under-inflation increases sidewall flexing and rolling resistance, resulting in heat buildup and internal damage to the tire. It also may result in unnecessary tire stress, irregular wear, loss of vehicle control and accidents. A tire can lose up to half of its air pressure and not appear to be flat! 221 2012 F-250/350/450/550 (f23) Owners Guide, 4th Printing USA (fus)

Section	Page
Table of Contents	1
Introduction	5
CONGRATULATIONS	5
SAFETY AND ENVIRONMENT PROTECTION	5
Warning symbols in this guide	5
Warning symbols on your vehicle	6
Protecting the environment	6
CALIFORNIA PROPOSITION 65 WARNING	6
PERCHLORATE MATERIAL	6
BREAKING-IN YOUR VEHICLE	6
SPECIAL NOTICES	7
New Vehicle Limited Warranty	7
Special instructions	7
Notice to owners of diesel-powered vehicles	7
Notice to owners of pickup trucks and utility type vehicles	7
Using your vehicle with a snowplow	7
Using your vehicle as an ambulance	8
Using your vehicle as a stationary power source (PTO)	8
DATA RECORDING	8
Service Data Recording	8
Event Data Recording	9
Vehicle Modification Data Recording	10
CELL PHONE USE	11
EXPORT UNIQUE (NON–UNITED STATES/CANADA) VEHICLE SPECIFIC INFORMATION	11
Instrument Cluster	14
WARNING LIGHTS AND CHIMES	14
GAUGES	21
STANDARD MESSAGE CENTER	22
Selectable features	23
Info (information menu)	23
System check and vehicle feature customization	25
Compass zone/calibration adjustment	27
System warnings	29
OPTIONAL MESSAGE CENTER (IF EQUIPPED)	39
Main menu	40
Gauge Mode	40
Trip A/B	41
Fuel Economy	41
Truck Apps (if equipped)	42
Settings	44
Information	47
Compass/transmission indicator displays	48
System warnings and status messages	48
Entertainment Systems	60
AUDIO SYSTEMS	60
AM/FM stereo system (if equipped)	60
AM/FM stereo single CD/satellite-compatible sound system (if equipped)	62
Auxiliary input jack (if equipped)	69
USB port (if equipped)	71
GENERAL AUDIO INFORMATION	71
Satellite radio information (if equipped)	74
NAVIGATION SYSTEM (IF EQUIPPED)	77
SYNC? (IF EQUIPPED)	77
Climate Controls	78
SINGLE ZONE CLIMATE CONTROL	78
Operating tips	79
DUAL ZONE AUTOMATIC TEMPERATURE CONTROL (IF EQUIPPED)	81
Operating tips	83
REAR WINDOW DEFROSTER (IF EQUIPPED)	85
REMOTE START CLIMATE OPERATION (IF EQUIPPED)	85
Lights	87
HEADLAMP CONTROL	87
Autolamp control (if equipped)	87
Fog lamp control (if equipped)	88
High beams	88
Flash-to-pass	88
Daytime running lamps (DRL) (if equipped)	89
PANEL DIMMER CONTROL	89
AIMING THE HEADLAMPS	90
Vertical aim adjustment	90
TURN SIGNAL CONTROL	91
INTERIOR LAMPS	92
Front map lamps (if equipped)	92
BULB REPLACEMENT	92
Lamp assembly condensation	92
Replacing exterior bulbs	93
Replacing headlamps, park lamps, turn lamps	94
Replacing brake/tail/turn/back-up lamp bulbs (pick-ups only)	95
Replacing brake/tail/turn/back-up lamp bulbs (chassis cabs only) (if equipped)	96
Replacing cargo lamp and high-mount brake lamp bulbs	96
Replacing front clearance and identification lamp bulbs (if equipped)	97
Replacing fog lamp bulbs (if equipped)	97
Replacing license plate lamp bulbs	97
Driver Controls	98
MULTI-FUNCTION LEVER	98
Windshield wiper rainlamp feature (if equipped with autolamp)	98
TILT/TELESCOPE STEERING WHEEL	99
ILLUMINATED VISOR MIRROR (IF EQUIPPED)	99
OVERHEAD CONSOLE (IF EQUIPPED)	100
Storage compartment (if equipped)	100
CENTER CONSOLE (IF EQUIPPED)	100
AUXILIARY POWER POINT (12V DC)	101
Power point (110V AC) (if equipped)	102
POWER WINDOWS (IF EQUIPPED)	103
One-touch down	104
Window lock (if equipped)	104
Power sliding back window (if equipped)	104
Accessory delay	104
INTERIOR MIRROR	105
Automatic dimming interior rear view mirror (if equipped)	105
EXTERIOR MIRRORS	106
Power side view mirrors (if equipped)	106
Heated outside mirrors (if equipped)	106
Fold-away mirrors	107
Power-fold mirrors (if equipped)	107
Telescoping mirrors (if equipped)	108
Memory mirrors (if equipped)	109
Mirror-mounted side turn signal indicator (if equipped)	109
Clearance lamps (if equipped)	109
POWER ADJUSTABLE FOOT PEDALS (IF EQUIPPED)	110
SPEED CONTROL (IF EQUIPPED)	110
Using speed control	110
Setting speed control	111
Disengaging a set speed	111
Resuming a set speed	111
Increasing speed while using speed control	112
Reducing speed while using speed control	112
Turning off speed control	112
STEERING WHEEL CONTROLS (IF EQUIPPED)	112
Audio control features	112
UPFITTER CONTROLS (IF EQUIPPED)	114
MOON ROOF (IF EQUIPPED)	115
UNIVERSAL GARAGE DOOR OPENER (IF EQUIPPED)	116
	117
Types of garage door openers (rolling code and fixed code)	117
Rolling code programming	118
Fixed code programming	120
Erasing the function button codes	121
FCC and RSS-210 Industry Canada Compliance	121
POSITIVE RETENTION FLOOR MAT (IF EQUIPPED)	122
TAILGATE LOCK	123
Tailgate Removal	123
Tailgate Step (If Equipped)	124
Bed extender (if equipped)	126
Locks and Security	129
KEYS	129
MYKEY? (IF EQUIPPED)	129
POWER DOOR LOCKS (IF EQUIPPED)	137
Smart locks (if equipped)	137
Autolock feature (if equipped)	137
Deactivating/activating autolock feature	138
Power door lock switch autolock enable/disable procedure	138
Keyless entry keypad autolock enable/disable procedure	139
Autounlock feature (if equipped)	139
Deactivating/activating autounlock feature	139
Power door lock switch autounlock enable/disable procedure	140
Keyless entry keypad autounlock enable/disable procedure	140
CHILD SAFETY LOCKS (IF EQUIPPED)	141
REMOTE ENTRY SYSTEM (IF EQUIPPED)	141
Two step door unlocking	142
One step door unlocking	142
Switching from two step to one step door unlocking	142
Locking the doors	143
Car finder	143
Sounding a panic alarm	143
Memory feature (seat, mirrors and adjustable pedals)	143
Programming memory feature to transmitter	143
Deprogramming memory feature from transmitter	144
Replacing the battery	144
Replacing lost Integrated Keyhead Transmitters (IKTs)	145
How to reprogram your Integrated Keyhead Transmitters (IKTs)	145
Illuminated entry	145
Remote start (if equipped)	146
SECURICODE™ KEYLESS ENTRY SYSTEM (IF EQUIPPED)	147
Programming a personal entry code and keypad association to memory feature	148
Erasing personal code	148
Anti-scan feature	148
Unlocking and locking the doors using keyless entry	149
SECURILOCK? PASSIVE ANTI-THEFT SYSTEM (IF EQUIPPED)	149
Automatic arming	150
Automatic disarming	150
Replacement keys	150
Programming spare keys	150
PERIMETER ALARM SYSTEM (IF EQUIPPED)	151
Arming the system	151
Disarming the system	152
Triggering the anti-theft system	152
Seating and Safety Restraints	153
FRONT SEATS	153
Adjustable head restraints	153
Front row center non-adjustable head restraint (if equipped)	156
Front seat	157
Adjusting the front power seat (if equipped)	159
Using the power lumbar support (if equipped)	160
Using the manual lumbar support (if equipped)	160
Heated and cooled seats (if equipped)	161
Climate controlled seats air filter replacement (if equipped)	162
Memory seats/power mirrors/adjustable pedals (if equipped)	163
Easy-access/easy-out feature (if equipped)	164
REAR SEATS	164
Non-adjustable second-row head restraints	164
Folding Up the Rear Seats (SuperCab)	166
Returning the Seat to the Seating Position	166
Folding the Rear Seat Back (Crew Cab)	166
Folding up the Rear Seat Cushion	166
Returning the Seat to the Seating Position	167
Rear center armrest (if equipped)	167
Rear Under Seat Storage (if equipped) (Crew Cab)	167
SAFETY RESTRAINTS	168
Combination lap and shoulder belts	170
Safety belt with cinch tongue (front and rear center seat only)	170
How to fasten the cinch tongue	171
Restraint of pregnant women	172
Safety belt locking modes	172
Energy management feature	174
Safety belt pretensioner	174
Safety belt height adjustment	175
Safety belt extension assembly	175
Safety belt warning light and indicator chime	176
Conditions of operation	176
Belt-Minder?	176
Deactivating/activating the Belt-Minder? feature (Driver only)	178
AIRBAG SUPPLEMENTAL RESTRAINT SYSTEM (SRS)	180
Important SRS precautions	180
Children and airbags	181
How does the airbag supplemental restraint system work?	182
Seat-mounted side airbag system (if equipped)	184
How does the side airbag system work?	185
Safety Canopy? System (if equipped)	186
How does the Safety Canopy? System work?	187
Determining if the system is operational	189
SOS Post-Crash Alert System™	189
Passenger airbag ON/OFF switch (if equipped)	190
Turning the passenger airbag off	190
Turning the passenger airbag back on	191
NHTSA deactivation criteria (excluding Canada)	192
Transport Canada deactivation criteria (Canada Only)	193
Disposal of airbags and airbag equipped vehicles	194
SAFETY RESTRAINTS FOR CHILDREN	195
Important child restraint precautions	195
Recommendations for attaching child safety restraints for children	197
Transporting children	198
SAFETY SEATS FOR CHILDREN	199
Infant and/or toddler seats	199
Installing child safety seats with automatic locking mode combination lap and shoulder belts (front passenger and rear outboa	200
Installing child safety seats in cinch tongue combination lap and shoulder belt seating positions (All front center and Super	204
Attaching child safety seats with LATCH (Lower Anchors and Tethers for CHildren) attachments	206
Attaching child safety seats with tether straps	206
Tether strap attachment (rear SuperCab only)	210
Child booster seats	211
When children should use booster seats	212
Types of booster seats	213
The importance of shoulder belts	214
Child restraint and safety belt maintenance	215
Tires, Wheels and Loading	216
NOTICE TO UTILITY VEHICLE AND TRUCK OWNERS	216
VEHICLE CHARACTERISTICS	217
Four-wheel drive (4WD) system (if equipped)	217
How Your Vehicle Differs from Other Vehicles	218
INFORMATION ABOUT UNIFORM TIRE QUALITY GRADING	219
Treadwear	219
Traction AA A B C	219
Temperature A B C	220
TIRES	220
Glossary of Tire Terminology	220
INFLATING YOUR TIRES	221
Tire Inflation Information	224
TIRE CARE	225
Inspecting your tires and wheel valve stems	225
Tire wear	226
Damage	226
U.S. DOT Tire Identification Number (TIN)	227
Tire Replacement Requirements	227
Safety Practices	229
Highway Hazards	229
Tire and Wheel Alignment	229
Tire Rotation	230
INFORMATION CONTAINED ON THE TIRE SIDEWALL	232
Information on “P” type tires	232
Additional information contained on the tire sidewall for “LT” type tires	235
Information on “T” type tires	236
Location of the tire label	236
TIRE PRESSURE MONITORING SYSTEM (TPMS) (IF EQUIPPED)	237
Changing Tires with a TPMS	238
Understanding Your Tire Pressure Monitoring System	238
When your temporary spare tire is installed	238
When you believe your system is not operating properly	239
When inflating your tires	240
How temperature affects your tire pressure	240
TPMS Reset Procedure	241
Overview	241
Performing the TPMS Reset Procedure	241
USING SNOW CHAINS	243
VEHICLE LOADING – WITH AND WITHOUT A TRAILER	244
Special loading instructions for owners of pick-up trucks and utility-type vehicles	251
TRAILER TOWING	252
Preparing to tow	253
Hitches	253
Hitch ratings	253
Weight-Distributing Hitches	254
Fifth-wheel trailer hitch (if equipped)	255
Safety Chains	256
Trailer brakes	256
Integrated trailer brake controller (if equipped)	256
Trailer Lamps	260
Driving while you tow	260
Trailer towing safety tips	261
General	261
Loading	261
Braking	262
Backing-up	262
Tires	262
Launching or Retrieving a Boat or Personal Water Craft (PWC)	262
RECREATIONAL TOWING	263
RECOVERY HOOKS	263
Driving	265
STARTING	265
Positions of the ignition	265
Preparing to start your vehicle	265
Important safety precautions	266
Starting the engine	267
Cold weather starting (flexible fuel vehicles only)	268
If the engine fails to start using the preceding instructions (flexible fuel vehicles only)	269
Guarding against Exhaust Fumes	269
Important Ventilating Information	269
ENGINE BLOCK HEATER (IF EQUIPPED)	269
BRAKES	271
Four-wheel anti-lock brake system (ABS)	271
Using ABS	271
Brake assist	272
ABS warning lamp	272
Brake over accelerator	272
Parking brake	273
ENGINE ONLY TRACTION CONTROL (DUAL REAR WHEEL (DRW) VEHICLES ONLY)	274
ADVANCETRAC? WITH ROLL STABILITY CONTROL™ (RSC?) STABILITY ENHANCEMENT SYSTEM (SINGLE REAR WHEEL (SRW) VEHICLES ONLY)	275
HILL DESCENT CONTROL (IF EQUIPPED)	281
STEERING	282
ELECTRONIC LOCKING DIFFERENTIAL (ELD) (IF EQUIPPED)	283
Activating the electronic locking differential (ELD)	284
PREPARING TO DRIVE	285
BRAKE-SHIFT INTERLOCK	285
AUTOMATIC TRANSMISSION OPERATION	287
Understanding the shift positions of the 5–speed automatic transmission (if equipped)	287
Understanding the shift positions of the 6–speed automatic transmission (if equipped)	290
Understanding your SelectShift Automatic™ transmission (SST) gearshift lever	293
Hill start assist (HSA)	294
If Your Vehicle Gets Stuck in Mud or Snow	295
REVERSE SENSING SYSTEM (IF EQUIPPED)	296
REARVIEW CAMERA SYSTEM (IF EQUIPPED)	298
FOUR-WHEEL DRIVE (4WD) OPERATION (IF EQUIPPED)	301
Manual Shift On Stop (MSOS) 4x4 system (if equipped)	301
Electronic Shift-On-the-Fly (ESOF) 4x4 system (if equipped)	301
Using a Manual Shift On Stop (MSOS) 4x4 system (if equipped)	303
Shifting from 2H (2WD) to 4H (4x4 High)	303
Shifting from 4H (4x4 High) to 2H (2WD)	304
Shifting from 2H (2WD) or 4H (4x4 High) to 4L (4x4 Low)	304
Shifting from 4L (4x4 Low) to 4H (4x4 High) or 2H (2WD)	305
Using the N (Neutral) position	305
Using the electronic shift 4WD system (if equipped)	306
Shifting between 2H (4X2) and 4H (4X4 High)	306
Shifting to/from 4L (4X4 low)	306
Driving off-road with truck and utility vehicles	307
How your vehicle differs from other vehicles	307
Basic operating principles	308
If your vehicle goes off the edge of the pavement	308
If your vehicle gets stuck	309
Emergency maneuvers	309
Parking	310
Normal characteristics	311
Sand	311
Mud and water	311
Driving on hilly or sloping terrain	312
Driving on snow and ice	313
Maintenance and modifications	314
VEHICLE USED AS A STATIONARY POWER SOURCE	315
DRIVING THROUGH WATER	315
SNOWPLOWING	316
Installing the snowplow	316
Operating the vehicle with the snowplow attached	317
Snowplowing with your airbag-equipped vehicle	317
Transmission operation while plowing	318
Roadside Emergencies	319
ROADSIDE ASSISTANCE	319
Vehicles sold in the U.S. : Getting roadside assistance	319
Vehicles sold in the U.S. : Using roadside assistance	319
Vehicles sold in Canada : Getting roadside assistance	320
Vehicles sold in Canada : Using roadside assistance	320
HAZARD FLASHER CONTROL	320
FUEL PUMP SHUT-OFF	321
FUSES AND RELAYS	321
Fuses	321
Standard fuse amperage rating and color	322
Passenger compartment fuse panel	322
Power distribution box	327
CHANGING THE TIRES	331
Dissimilar spare tire/wheel information	332
Stopping and securing the vehicle	334
Location of the spare tire and tools	334
Removing the spare tire (with spare tire carrier only)	335
Tire change procedure	337
Installing dual rear wheel ornaments	344
Stowing the flat/spare tire	346
WHEEL LUG NUT TORQUE SPECIFICATIONS	347
JUMP STARTING	348
Preparing your vehicle	348
Connecting the jumper cables	349
Jump Starting	350
Removing the jumper cables	350
WRECKER TOWING	351
Emergency Towing	352
Customer Assistance	353
GETTING THE SERVICES YOU NEED	353
Away from home	353
Additional assistance	354
IN CALIFORNIA (U.S. ONLY)	355
THE BETTER BUSINESS BUREAU (BBB) AUTO LINE PROGRAM (U.S. ONLY)	355
UTILIZING THE MEDIATION/ARBITRATION PROGRAM (CANADA ONLY)	357
GETTING ASSISTANCE OUTSIDE THE U.S. AND CANADA	357
ORDERING ADDITIONAL OWNER’S LITERATURE	359
Obtaining a French Owner’s Guide	359
REPORTING SAFETY DEFECTS (U.S. ONLY)	359
REPORTING SAFETY DEFECTS (CANADA ONLY)	360
Cleaning	361
WASHING THE EXTERIOR	361
WAXING	362
PAINT CHIPS	362
ALUMINUM WHEELS AND WHEEL COVERS	362
ENGINE	363
PLASTIC (NON-PAINTED) EXTERIOR PARTS	364
WINDOWS AND WIPER BLADES	364
INSTRUMENT PANEL/INTERIOR TRIM AND CLUSTER LENS (EXCEPT HARLEY-DAVIDSON)	365
INSTRUMENT PANEL AND CONSOLE (HARLEY-DAVIDSON ONLY)	366
INTERIOR	367
LEATHER SEATS (IF EQUIPPED, EXCEPT FOR THE KING RANCH? EDITION)	367
LEATHER SEATS FOR THE KING RANCH? EDITION ONLY (IF EQUIPPED)	368
UNDERBODY	369
FORD AND LINCOLN CAR CARE PRODUCTS	369
Maintenance and Specifications	370
SERVICE RECOMMENDATIONS	370
PRECAUTIONS WHEN SERVICING YOUR VEHICLE	370
Working with the engine off	370
Working with the engine on	370
OPENING THE HOOD	371
IDENTIFYING COMPONENTS IN THE ENGINE COMPARTMENT	371
WINDSHIELD WASHER FLUID	374
CHANGING THE WIPER BLADES	374
ENGINE OIL	375
Checking the engine oil	375
Adding engine oil	376
Engine oil and filter recommendations	376
Use SAE 5W-20 engine oil	376
BATTERY	377
ENGINE COOLANT	379
Checking the engine coolant	379
Adding engine coolant	380
Recycled engine coolant	383
Coolant refill capacity	383
Severe climates	383
What you should know about fail-safe cooling (if equipped)	384
How fail-safe cooling works	384
When fail-safe mode is activated	384
Engine fluid temperature management (except 6.8L V10)	385
FUEL FILTER	386
WHAT YOU SHOULD KNOW ABOUT AUTOMOTIVE FUELS	386
Important safety precautions	386
Refueling	389
Fuel filler cap	389
FFV (Flex Fuel Vehicle) fuel cap	390
Choosing the right fuel	390
Octane recommendations	391
FFV engine (if equipped)	391
Fuel quality	391
Diesel engine (if equipped)	392
Cleaner air	392
Running out of fuel	392
ESSENTIALS OF GOOD FUEL ECONOMY	393
Measuring techniques	393
Filling the tank	393
Calculating fuel economy	393
Driving style — good driving and fuel economy habits	394
Habits	394
Maintenance	395
Conditions	395
EMISSION CONTROL SYSTEM	396
On-board diagnostics (OBD-II)	397
Readiness for Inspection/Maintenance (I/M) testing	398
POWER STEERING FLUID	399
BRAKE FLUID	400
TRANSMISSION FLUID	400
Checking automatic transmission fluid (if equipped)	400
Low fluid level	401
Correct fluid level	402
High fluid level	402
Adjusting automatic transmission fluid levels	403
TRANSFER CASE FLUID (IF EQUIPPED)	404
AIR FILTER	404
Changing the air filter element	405
VEHICLE STORAGE	407
MOTORCRAFT PART NUMBERS	410
MAINTENANCE PRODUCT SPECIFICATIONS AND CAPACITIES	411
ENGINE DATA	415
Engine drivebelt routing	415
IDENTIFYING YOUR VEHICLE	416
Safety Compliance Certification Label	416
Vehicle identification number (VIN)	417
TRANSMISSION CODE DESIGNATIONS	418
Accessories	419
FORD CUSTOM ACCESSORIES FOR YOUR VEHICLE	419
Exterior style	419
Interior style	419

Match case Limit results 1 per page

•

PSI:

Pounds per square inch, a standard unit of air pressure.

•

Cold inflation pressure:

The tire pressure when the vehicle has

been stationary and out of direct sunlight for an hour or more and

prior to the vehicle being driven for 1 mile (1.6 km).

•

Recommended inflation pressure:

The cold inflation pressure found

on the Safety Compliance Certification Label (affixed to either the

door hinge pillar, door-latch post, or the door edge that meets the

door-latch post, next to the driver’s seating position), or Tire Label

located on the B-Pillar or the edge of the driver’s door.

•

B-pillar:

The structural member at the side of the vehicle behind the

front door.

•

Bead area of the tire:

Area of the tire next to the rim.

•

Sidewall of the tire:

Area between the bead area and the tread.

•

Tread area of the tire:

Area of the perimeter of the tire that

contacts the road when mounted on the vehicle.

•

Rim:

The metal support (wheel) for a tire or a tire and tube assembly

upon which the tire beads are seated.

INFLATING YOUR TIRES

Safe operation of your vehicle requires that your tires are properly

inflated. Remember that a tire can lose up to half of its air pressure

without appearing flat.

Every day before you drive, check your tires. If one looks lower than the

others, use a tire gauge to check pressure of all tires and adjust if

required.

At least once a month and before long trips, inspect each tire and check

the tire pressure with a tire gauge (including spare, if equipped). Inflate

all tires to the inflation pressure recommended by Ford Motor Company.

WARNING:

Under-inflation is the most common cause of tire

failures and may result in severe tire cracking, tread separation

or “blowout”, with unexpected loss of vehicle control and increased

risk of injury. Under-inflation increases sidewall flexing and rolling

resistance, resulting in heat buildup and internal damage to the tire. It

also may result in unnecessary tire stress, irregular wear, loss of

vehicle control and accidents. A tire can lose up to half of its air

pressure and not appear to be flat!

Tires, Wheels and Loading

221

2012 F-250/350/450/550

(f23)

Owners Guide, 4th Printing

USA

(fus)