Parking Brake - Chevrolet Low Cab Forward 6.7L 2022 Owner's Manual

174 Driving and Operating

Parking Brake

Warning
The parking brake system is designed to
engage automatically when there is a
loss of air pressure in the air brake
system. This can occur even with the
parking brake handle in the off position.
When air pressure returns to a normal
operating level, the parking brake will
slowly disengage automatically, even
when the parking brake handle is off.
This can take up to four minutes. Do not
put the vehicle in D (Drive) or N (Neutral)
and do not exit the vehicle until the air
pressure has returned to normal
operating levels.
You and others could be seriously injured.
Damage to the vehicle may occur.
Parking Brake Lever
When parking or stopping your vehicle,
engage the parking brake and make sure
that the vehicle does not start moving.
Avoid parking your vehicle on a slope as
much as possible and choose a level and flat
place. If parking on a slope is unavoidable,
be sure to set the parking brake, make sure
that the vehicle does not move, and block
the wheels with chocks for added safety.
Illumination of the parking brake warning
light does not mean that the parking brake
is fully applied. The parking brake lever
must be fully engaged.
When you engage the parking brake lever,
air pressure is reduced and all four wheel
brakes are applied.
Warning
Although the parking brake indicator light
will come on if the parking brake is
engaged while the engine control switch
is in the ON position, this does not mean
the parking brake is fully engaged, so
always make sure the lever is fully
pulled up.
Never drive the vehicle with the parking
brake set as this will cause excessive
wear, reduce parking brake effectiveness
and increase fuel consumption.
Choose a flat place where stopping and
parking are permitted and where the
vehicle will not obstruct traffic.
Warning (Continued)
Remove all dirt from the vehicle's light
lenses and reflectors to ensure that the
vehicle can be seen from other vehicles.
You and others could be seriously injured.
Avoid parking for long periods with cargo on
the vehicle.
Do not use the parking brake while the
vehicle is in motion except in an
emergency. Applying the parking brake
before the vehicle has stopped can cause
the tires to lock or the vehicle to spin,
possibly causing an accident. Unless the
parking brake is fully released during
driving, a fault and/or a fire may result.
Do not drive the vehicle until the brake
air pressure is above 73 psi. When brake
air pressure is below 73 psi in both
primary and secondary air pressure
gauges the parking brake will not fully
release, causing the rear brakes to drag.
(Continued)
Warning
(Continued)