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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 3 36.
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. 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 after you move the shift lever to P (Park).
Follow the proper steps to be sure the vehicle will not
move. See Shifting Into Park on page 3 34.
If parking on a hill and pulling a trailer, see Towing a
Trailer on page 5 31.
The vehicle may have an inside rearview mirror with
automatic dimming and OnStar
®
have OnStar
and a compass display. See the OnStar
owner guide and/or Compass on page 3 38 for more
information.
Press to turn the dimming feature on
or off.
Automatic dimming reduces the glare of lights from
behind the vehicle. The dimming feature comes on and
the indicator light illuminates each time the vehicle is
started.
Do not spray glass cleaner directly on the mirror. Use a
soft towel dampened with water.
®
controls; or it may
®
3-37
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