Cadillac 2005 STS - Manual (Page 96)

Torque Lock
If you are parking on a hill and you do not 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)” listed previously.
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 your regular
brake before you can shift from PARK (P) when
the vehicle is running. See Automatic Transmission
Operation on page 2-26.
If you cannot shift out of PARK (P), ease pressure on
the shift lever – push the shift lever all the way into
PARK (P) and release the shift lever button as
you maintain brake application. Then press the shift
lever button and move the shift lever into the gear
you wish.
If you ever hold the brake pedal down but still cannot
shift out of PARK (P), try this:
1. Press the OFF/ACCESSORY button twice to place
the ignition in accessory mode.
2. Apply and hold the brake until the end of Step 4.
3. Shift to NEUTRAL (N).
4. Start the engine and then shift to the drive gear
you want.
5. Have your vehicle inspected by your dealer as soon
as possible.
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