Automatic Transmission - GMC Chevrolet Express 2022 Owner's Manual

If the vehicle is left with the engine running,
follow the proper steps to be sure the
vehicle will not move. See Shifting Into Park
0 133 and
Engine Exhaust 0 134.
If parking on a hill and pulling a trailer, see
Driving Characteristics and Towing Tips
0 153.

Automatic Transmission

A shift position indicator is in the
instrument cluster.
There are several different positions for the
shift lever.
See Range Selection Mode under Manual
Mode 0 137.
P : This position locks the rear wheels. It is
the best position to use when starting the
engine because the 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 P (Park). See Torque Lock
under Shifting Into Park 0 133.
Warning
It is dangerous to get out of the vehicle
if the shift lever is not fully in P (Park)
with the parking brake firmly set. The
vehicle can roll.
Do not leave the vehicle when the engine
is running. If you have left the engine
running, the vehicle can move suddenly.
You or others could be injured. To be
sure the vehicle will not move, even
when you are on fairly level ground,
always set the parking brake and move
the shift lever to P (Park). See Shifting
Into Park 0 133 and
Driving Characteristics and Towing Tips
0 153.
R : Use this gear to back up.
Caution
Shifting to R (Reverse) while the vehicle is
moving forward could damage the
transmission. The repairs would not be
Driving and Operating
Caution (Continued)
covered by the vehicle warranty. Shift to
R (Reverse) only after the vehicle is
stopped.
To rock the vehicle back and forth to get
out of snow, ice, or sand without damaging
the transmission, see If the Vehicle Is Stuck
0 124.
N : In this position, the engine does not
connect with the wheels. To restart when
you are already moving, use N (Neutral)
only. Also, use N (Neutral) when the vehicle
is being towed.
Shifting into a drive gear while the
engine is running at high speed is
dangerous. Unless your foot is firmly on
the brake pedal, the vehicle could move
very rapidly. You could lose control and
hit people or objects. Do not shift into a
drive gear while the engine is running at
high speed.
(Continued)
135
Warning