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:

    Maintenance When Trailer Towing
    The vehicle needs service more often when pulling a trailer. See Scheduled Maintenance for more information. Things that are especially important in trailer operation are automatic transmission ...

    Securing the Child Within the ChildRestraint
    There are several systems for securing the child within the child restraint. One system, the three-point harness, has straps that come down over each of the infant’s shoulders and buckle togethe ...

    Online Owner Center
    Manage your vehicle (U.S.) at buick.com. Click on "Owners," then "Manage My Buick/Owners Login." Information and services customized for your specific vehicle — all in o ...