GM Service Manual Online
For 1990-2009 cars only

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