Automatic Transmission Operation - Hummer 2007 H2 Owner's Manual

Automatic Transmission Operation

Your vehicle is equipped with an automatic
transmission and features an electronic shift
position indicator located within the instrument
panel cluster.
There are several different positions for your
shift lever.
PARK (P): This position locks your drive wheels. It
is the best position to use when you start your
engine because your vehicle cannot move easily.
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CAUTION:
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It is dangerous to get out of your vehicle
if the shift lever is not fully in PARK (P)
with the parking brake firmly set. Your
vehicle can roll.
Do not leave your 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 your vehicle will not
move, even when you are on fairly level
ground, always set your parking brake
and move the shift lever to PARK (P). See
Shifting Into Park (P) on page 134. If you
are pulling a trailer, see Towing a Trailer
on page 374.