Automatic Transmission Operation - GMC Yukon Denali 2006 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.
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 2-25. If you
are pulling a trailer, see Towing a Trailer on
page 4-51.
REVERSE (R): Use this gear to back up.
Notice: Shifting to REVERSE (R) while your vehicle
is moving forward could damage the transmission.
The repairs would not be covered by your warranty.
Shift to REVERSE (R) only after your vehicle is
stopped.
To rock your vehicle back and forth to get out of snow, ice
or sand without damaging your transmission, see If Your
Vehicle is Stuck in Sand, Mud, Ice or Snow on page 4-42.
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