GMC C series 2002 Owner's Manual page 72

Electric/Hydraulic Parking Brake
(If Equipped)
CAUTION:
It will take a few seconds for the parking brake
to fully apply, and even longer when it is cold
outside. Do not leave your vehicle until the
parking brake applies fully. Without the parking
brake applied, your vehicle is free to move.
It could hit someone or something.
To apply the parking brake, pull the knob toward you.
Then shift the transmission to neutral or PARK (P).
Push the knob in to release the parking brake.
The ignition must be in ON and the shift lever out of
PARK (P) in order to release the parking brake.
The PARK BRAKE light may flash while the parking
brake is being applied or released. This is normal for
this system.
If your vehicle needs towing or the parking brake will
not release, the towing operator will need to disconnect
the propshaft before towing your vehicle. See "Towing
Your Vehicle" in the Index.
If your vehicle has this
system, you will have a
knob located to the right of
the steering column.
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