1997 GMC Safari Owner's Manual - Page 102

Running Your Engine While You're Parked It's better not to park with the engine running. But if ever have to, here are some things to know. CAUTION: It can be dangerous to get out of your vehicleif the shift lever is not fully PARK (P) with the in parking brakefirmly set. Your vehicle roll. can Don't leaveyour vehicle whenthe engine is running unless you have to. you've left the If engine running, the vehicle can move suddenly. You or others could beinjured. To be sure your vehicle won't move, even when you're fairly on level ground, always setyour parking brake and move the shift leverto PARK (P). Follow the proper steps to be sureyour vehicle won't move. See "Shifting Into PARK (P)" in the Index. If you're pulling a trailer, see "Towing a Trailer" in the Index. A CAUTION: Idling the engine withthe air system control off could allowdangerous exhaust into your vehicle (seethe earlier Caution under "Engine Exhaust"). Also, idling in a closed-in placecan let deadly carbon monoxide (CO) into your vehicle evenif the fanswitch is at the highest setting.One place this can happen is a garage. Exhaust with CO can come in easily. NEVER park in a garage with the engine running. Another closed-in placecan be a blizzard. (See "Blizzard" in theIndex.) -- --