Chevrolet Low Cab Forward 6.7L 2022 Owner's Manual page 166

When Parking Your Vehicle
Caution
Do not leave your vehicle while the
engine is still running. Do not park with
the selector lever in a position other than
"P" (only models with P-range) or "N"; the
vehicle may begin moving by itself due
to creeping. You may accidentally press
the accelerator pedal when getting into
the vehicle causing it to start moving
suddenly.
When parking the vehicle, always
apply the parking brake and move the
selector lever to the "P" position
(models with P-range) or "N" position
(models without P-range).
When parking on a slope, move the
selector lever in the "P" position
(models with P-range) or "N" position
(models without P-range) and block
the wheels with chocks.
1. Keep pressing the brake pedal firmly
with your right foot, then apply the
parking brake.
2. Move the selector lever in the "P"
position (models with P-range) or "N"
position (models without P-range), check
that the shift indicator is indicating "P"
(models with P-range) or "N" (models
without P-range), and slowly ease your
right foot off the brake pedal.
3. Shut down the engine, and remove the
key. When the selector lever is not
placed in the "P" position, the shift lock
system operates and the key cannot be
removed (only models with P-range).
See Starting and Stopping the Vehicle 0 131,
and Parking Brake 0 174.
If you cannot move the selector lever from
the P position after starting the engine,
perform the following necessary checks:
Check that you are firmly pressing the
brake pedal.
Check if the area where your vehicle is
parked is not a slope.
Driving and Operating
If your vehicle is parked on a downhill
slope, the push operation of the selector
lever may become heavy to move. In this
case, you can operate the selector lever
more smoothly by pushing the selector
lever towards the front of the vehicle
while pushing the button.
Shift Lock System - Models with
ALLISON2550RDS Model Transmission
When Starting Your Vehicle
The selector lever cannot be operated from
the P position to any other position without
the brake pedal being pressed. Be sure to
operate the lever while pressing the brake
pedal.
When Parking Your Vehicle
The key cannot be removed unless the
selector lever is securely placed in the P
position (key interlock system). Be sure to
place the selector lever in the P position
when parking the vehicle.
The shift lock system is a system for safety
to prevent incorrect operation of the
automatic transmission. Use it correctly and
drive safely.
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