Chevrolet Optra 2005, Owner'S Manual, Page: 99 / 336

Torque Lock (Automatic Transaxle)
If you are parking on a hill and you do not 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 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)
(Automatic Transaxle) 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 yours a little uphill to take some of the
pressure from the parking pawl in the transaxle, so you
can pull the shift lever out of PARK (P).
Shifting Out of Park (P)
(Automatic Transaxle)
Your automatic transaxle vehicle has an automatic
transaxle shift lock control system which locks the shift
lever in PARK (P) when the ignition is in LOCK. You
have to fully apply your regular brakes before you can
shift from PARK (P) when the ignition is turned to
ON. See Automatic Transaxle Operation on page 2-21.
If you cannot shift out of PARK (P) while holding the
brake pedal down, try this:
1. Set the parking brake.
2. Turn the ignition off and remove the key.
3. Pry off the cover over the shift-lock release slot
using a small, flat object, like a screwdriver. The
shift-lock release slot is located at the top of the
shift lever.
2-29