Parking Your Vehicle; Torque Lock; Shifting Out Of Park (P) - GMC 2003 Sonoma Owner's Manual

Torque Lock

If you are parking on a hill and you don't shift your
transmission into PARK (P) properly, the weight of the
vehicle may put too much force on the parking pawl
in the transmission. You may find it difficult to pull the
shift lever out of PARK (P). This is called "torque
lock" To prevent torque lock, set the parking brake and
then shift into PARK (P) properly before you leave
the driver's seat. To find out how, see Shifting Into
Park (P) on page 2-32 .
When you are ready to drive, move the shift lever out of
PARK (P) before you release the parking brake.
If torque lock does occur, you may need to have another
vehicle push yours a little uphill to take some of the
pressure from the parking pawl in the transmission, so
you can pull the shift lever out of PARK (P).

Shifting Out of Park (P)

Your vehicle has an automatic transmission shift lock
control system. You have to fully apply the regular
brakes before you can shift from PARK (P) when the
ignition is in RUN. See Automatic Transmission
Operation on page 2-24 .
2-34
If you cannot shift out of PARK (P), ease pressure on
the shift lever–push the shift lever all the way into
PARK (P) as you maintain brake application. Then move
the shift lever into the gear you want. You must press
the shift lever button on the shift lever.
If you ever hold the brake pedal down but still can't shift
out of PARK (P), try this:
1. Turn the key to OFF.
2. Apply and hold the brake until the end of Step 4.
3. Shift the transmission to NEUTRAL (N).
4. Start the vehicle and then shift to the drive gear
you want.
5. Have the vehicle fixed as soon as possible.

Parking Your Vehicle

If you have a manual transmission, before you get out
of your vehicle, move the shift lever into REVERSE (R),
and firmly apply the parking brake. Once the shift
lever has been placed into REVERSE (R) with the clutch
pedal pressed in, you can turn the ignition key to
OFF, remove the key and release the clutch.
If you are parking on a hill, or if your vehicle is pulling a
trailer, see Towing a Trailer on page 4-54 .