What is causing your key to stick in the ignition on a 2000 Pontiac Grand Prix?
It is a common problem, and I found two possible answers. The ignition plunger in the ignition switch or the Park release solenoid located in the center console. I've heard that when the solenoid sticks it prevents your key from being released. I have not fixed mine yet, I just use the inside of a ball point pen to release the plunger by sticking it in the access hole under the ignition. Try spraying the tumbler with powdered graphite. This can be a common problem with the grand prix it has to do with the interlock with the gear selector. There is a safety feature that prevents the key from being removed while the car is in drive. This can become defective and not allow the key to be removed at the appropriate time. hope this helps. "G"