Running The Vehicle While Parked - Chevrolet 2009 Suburban Owner's Manual

Running the Vehicle While Parked

It is better not to park with the engine running. But if you
ever have to, here are some things to know.
CAUTION:
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Idling a vehicle in an enclosed area with poor
ventilation is dangerous. Engine exhaust may
enter the vehicle. Engine exhaust contains Carbon
Monoxide (CO) which cannot be seen or smelled.
It can cause unconsciousness and even death.
Never run the engine in an enclosed area that has
no fresh air ventilation. For more information, see
Engine Exhaust on page 2-50.
CAUTION:
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It can be dangerous to get out of the vehicle if the
automatic transmission shift lever is not fully in
P (Park) with the parking brake firmly set.
CAUTION: (Continued)
CAUTION: (Continued)
The vehicle can roll. Do not leave the vehicle
when the engine is running unless you have to.
If you have left the engine running, the vehicle
can move suddenly. You or others could be
injured. To be sure the vehicle will not move, even
when you are on fairly level ground, always set
the parking brake and move the shift lever to
P (Park).
CAUTION:
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Four-wheel drive vehicles with the transfer case in
N (Neutral) will allow the vehicle to roll, even if the
automatic transmission shift lever is in P (Park). So,
be sure the transfer case is in a drive gear — not in
N (Neutral). Always set the parking brake.
Follow the proper steps to be sure the vehicle will not
move. See Shifting Into Park on page 2-47.
If pulling a trailer, see Towing a Trailer on page 4-50.
2-51