1995 GMC Yukon Owner's Manual - Page 100

3. If you have four-wheel drive. be sure the transfer case is in a drive gear - not in NEUTRAL ( N ) 4. Move the ignition key to LOCK. 5. Remove the key and take it with you. I f you can walk away from your vehicle with the ignition key i n your hand, your vehicle is in PARK (P). Shifting Outof PARK (P) Your vehicle has a brake-transll.lission shift interlock system. You have to fully apply your regular brakes before you can shift from PARK (P). See "Automatic Transmission" i n the Index. If you cannot shift o u t of PARK (P), ease pressure on the shift lever and push the shift lever all the way up into PARK (P) a s you maintain brake application. Then, move the shift lever into the gear you want. If you ever hold the brake pedal down but still can't shift out of PARK (P), try this: 1 . Turn the key to OFF. 2. Apply and hold the brake u n t i l the end of Step 4. 3. Shift to NEUTRAL(N). 4. Start the vehicle and then shift to the drive gear you want. 5 . Have the brake-transmission shift interlock system fixed as soon as you can. Leaving Your Vehicle With the Engine Running (Automatic Transmission ModelsOn/y) A CAUTION: It can be dangerous leave yourvehicle with the engine to is running. Your vehicle could move suddenly if the shift lever not fully in PARK with the parking brake firmly If you (P) set. have four-wheel drive with manual transfer case shift lever a and your transfer case is in NEUTRAL your vehicle will be (N), (P). free toroll, even if your shift lever is in PARK So be sure the transfer case is in drive gear- not in NEUTRAL a (N). And, if it you leave thevehicle with the engine running, could overheat and even catch fire. You or others could be injured. Don't leave your vehicle with the engine running unless you have to. 2-28