GM Service Manual Online
For 1990-2009 cars only

Your vehicle has an automatic transaxle shift lock release system. You have to fully apply your regular brakes before you can shift from PARK (P) when the ignition is in RUN. See Automatic Transaxle Operation .

The shift lock release is designed to do the following:

    • Prevent the ignition key from being removed unless the shift lever is in PARK (P), and
    • Prevent movement of the shift lever out of PARK (P) unless the ignition is in a position other than LOCK. The shift lock release is always functional except in the case of a dead battery or low voltage (less than 9 volt) battery.

If you cannot shift out of PARK (P), ease pressure on the shift lever -- push the shift lever all the way into PARK (P), as you maintain brake application. Then move the shift lever into the gear you wish. Press the shift lever button before moving the shift lever.