Automatic Transmission Operation - GMC Yukon Denali 2003 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's
the best position to use when you start your engine
because your vehicle can't move easily.
{
CAUTION:
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.
Don't 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.
2-22
CAUTION: (Continued)
CAUTION: (Continued)
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). See "Shifting Into Park (P)" in the
Index. If you're pulling a trailer, see "Towing a
Trailer" in the Index.
REVERSE (R): Use this gear to back up.
Notice: Shifting to REVERSE (R) while your vehicle
is moving forward could damage your transmission.
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 You Are Stuck: In Sand, Mud, Ice or Snow on
page 4-41 .
NEUTRAL (N): In this position, your engine doesn't
connect with the wheels. To restart when you're already
moving, use NEUTRAL (N) only.