2001 Pontiac Grand Prix Often times I can't get key out of

Does the car have a floor shifter? If so, there is a switch that closes when you put it in park that sends power to the interlock at the ignition lock cylinder. If the interlock doesnt get power - it wont allow the key to turn to lock position and wont allow key to be removed. Two equallly common problems 1. Switch is no good (usually soda and/or coffee spills) - switch is actually part of shifter assembly (not cheap). 2. Wires at the plug are broken - the switch actually moves with the shifter flexing the wires everytime you shift out of park. Just remove the leather from around the base of shifter and reach in there and tug on wires - dont yank just tug - if the wire(s) come out they were broken, if not it needs a switch (shifter assembly). In the meantime, there is a small access hole in the underside of the steering column, right under the ignition key - take a small screwdriver and pop the plug out and stick it straight up towards the key - that will push the interlock and manually release the key.