Hummer 2006 H2 - Manual (Page 104)

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:
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 2-35. If you are pulling a trailer, see
Towing a Trailer on page 4-63.
{ CAUTION:
Shifting the transfer case to NEUTRAL can
cause your vehicle to roll even if the
transmission is in PARK (P). You or someone
else could be seriously injured. Be sure to set
the parking brake before placing the transfer
case in NEUTRAL. See Parking Brake on
page 2-34.
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 4-50.
NEUTRAL (N): In this position, your engine does not
connect with the drive wheels. To restart when you
are already moving, use NEUTRAL (N) only.
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