1996 Pontiac Firebird Owner's Manual - Page 90

Running Your Engine While You're Parked (Automatic Transmission) ,. It's better not park with the engine running. But if you to ever have to, here are some things to know. - - I A CAUTION: Idling the engine withthe air system control off could anowdangerous exhaust into your vehicle (see the earlier Caution under "Engine Exhaust"). Also, idling ina closed-in placecan let deadly carbon monoxide ( C O )into your vehicle even if the fan switch isat 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.) -- It can be dangerous to get out of your vehicle if the shift leveris not fully in PARK(P) with the parking brake firmly set. Your vehiclecan roll. Don't leaveyour vehicle whenthe engine is running unless you have .to.If you've left the engine running, the vehicle can move suddenly. You or others could beinjured. To be sure your vehicle won't move, even when you're on 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 are parking on a hill and if you're pulling a trailer, also see "Towing a Trailer'' in the Index.