1998 GMC Savana Van Owner's Manual - Page 102

Running Your Engine While You're Parked It's better notto park with the engine running. But if ever you have to, hereare some things to know. It canbe dangerous toget out of yvur vehicle if the shift lever not fully inPARK (P) with the is parking brake firmly set. Your vehicle can roll. Don't leave your vehicle when the engine is running unlessyou have to. If you've left the engine running, thevehicle can move suddenly. You or others could be injured. To be sure your vehicle won't move, even when you'reon fairly level ground, always set your parking brake and move the shift lever to PARK (P). Follow the proper stepsto be sure your vehicle won't move. See "Shifting Into PARK (P)" in the Index. If you're pulling a trailer, see "Towinga Trailer" in the Index. -t I Idling the engine with the air system control off could allow dangerous exhaust into your vehicle (see the earlier Caution under "Engine Exhaust"). Also, idling in a closed-in place can let deadly carbon monoxide(CO)into your vehicle even if the fanswitch isat the highest setting. One place this can happen a garage. Exhaust with is CO can comein easily. NEVER park in a garage with the engine running. Another closed-in place can a blizzard. be (See "Blizzard" in theIndex.) -- -- Locking Rear Axle (fEquipped) I If you have this feature, your locking rear can give axle you additional traction on snow, mud, ice, sandor gravel. It works likea standard axle most of the time, but when one of the rear wheels has no traction and the other does, this feature will allow the wheel with traction to move the vehicle. 2-30