Torque Lock - Pontiac 2004 Grand Prix Owner's Manual

Leaving Your Vehicle With the Engine
Running
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CAUTION:
It can be dangerous to leave your vehicle with
the engine running. Your vehicle could move
suddenly if the shift lever is not fully in
PARK (P) with the parking brake firmly set.
And, if you leave the vehicle with the engine
running, it could overheat and even catch fire.
You or others could be injured. Don't leave
your vehicle with the engine running.
If you have to leave your vehicle with the engine
running, be sure the vehicle is in PARK (P) and the
parking brake is firmly set before you leave it. After
you've moved the shift lever into PARK (P), hold the
regular brake pedal down. Then, see if you can
move the shift lever away from PARK (P) (without first
pushing the shift lever button). If you can, it means
that the shift lever wasn't fully locked into PARK (P).

Torque Lock

If you are parking on a hill and you don't shift your
transaxle into PARK (P) properly, the weight of
the vehicle may put too much force on the parking pawl
in the transaxle. You may find it difficult to move 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 2-28 .
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 your vehicle uphill. This should
take some of the pressure from the parking pawl in
the transaxle, so you can move the shift lever out
of PARK (P).
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