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; 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 Park” listed previously.
If torque lock does occur, the vehicle may need to be pushed uphill by another vehicle to relieve the parking pawl pressure, so you can shift out of P (Park).
See also:
Ultrasonic Parking Sensor Light
This light comes on to indicate that there is a malfunction in the system.
See your dealer for service.
See Ultrasonic Parking Assist and Driver Information Center (DIC) for more infor ...
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If you have not found a problem yet, but the
coolant level is not at the FULL COLD mark, add
a 50/50 mixture of clean, drinkable water and
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Customer Assistance Offices
Buick encourages customers to call the toll-free
number for assistance. However, if a customer
wishes to write or e-mail Buick, the letter should be
addressed to:
United States — Customer Assist ...