GM Service Manual Online
For 1990-2009 cars only

Shifting Out of Park Automatic Transmission

Your vehicle has an automatic transmission shift lock control system which locks the shift lever in PARK (P) when the ignition is off. In addition, you have to fully apply your regular brake before you can shift from PARK (P) when the ignition is on. See Automatic Transmission Operation .

If you cannot shift out of PARK (P), ease pressure on the shift lever and 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 regular brake.
  2. Press the Acc. button twice to place the ignition in accessory mode. See Ignition Positions for more information.
  3. Apply and hold the brake until the end of Step 4.
  4. Shift to NEUTRAL (N).
  5. Start the engine and then shift to the drive gear you want.
  6. Have your vehicle inspected by your dealer/retailer as soon as possible.