Chevrolet 2008 Silverado 1500 Pickup Owner's Manual page 123

Allison Transmission
Automatic Transmission
See "Range Selection Mode" later in this section.
PARK (P): This position locks your rear wheels. It is the
best position to use when you start the engine because
your vehicle cannot move easily. When parked on a hill,
especially when the vehicle has a heavy load, you might
notice an increase in the effort to shift out of Park. See
Torque Lock (Automatic Transmission) under Shifting
Into Park on page 2-51 for more information.
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.
® ®
or Hydra-Matic 6-Speed
CAUTION: (Continued)
CAUTION: (Continued)
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 on page 2-51. If you
are pulling a trailer, see Towing a Trailer on
page 4-55.
CAUTION:
{
If you have Four-Wheel Drive, your vehicle
will be free to roll — even if your shift lever
is in PARK (P) — if your transfer case is in
NEUTRAL. So, be sure the transfer case is in a
drive gear, Two-Wheel Drive High or Four-Wheel
Drive High or Four-Wheel Drive Low — not in
NEUTRAL. See Shifting Into Park on page 2-51.
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