Torque Lock
Torque lock is when the weight of the vehicle puts too much force on the parking pawl in the transmission. This happens when parking on a hill and shifting the transmission into P (Park) is not done properly and then it is difficult to shift out of P (Park). To prevent torque lock, set the parking brake and then shift into P (Park). To find out how, see "Shifting Into P (Park)" listed previously.
If torque lock does occur, your vehicle may need to be pushed uphill by another vehicle to relieve the parking pawl pressure, so you can shift out of P (Park).
If you are towing a trailer and parking on a hill, see Driving Characteristics and Towing Tips.
See also:
Tire Sealant and Compressor Kit
This vehicle may come with a spare tire and tire changing equipment or a
tire sealant and compressor kit.
The kit can be used to temporarily seal small punctures in the tread area of
the tire.
...
Making a Call Using Phone Book
For cell phones that support the phone book feature, the Bluetooth system
can use the contacts stored on your cell phone to make calls.
See your cell phone's owner's guide or contact your wireless ...
Potential Issues
Some OnStar services are disabled
after five days. OnStar cannot
perform Remote Door Unlock or
Stolen Vehicle Assistance after the
vehicle has been off continuously
for five days. After five ...