Hello! Welcome to the site! Thanks for coming! I'm Ron Z. I'm here to provide as much information and insight as I can, to best answer your question.
When the Shifter will not release from Park, first, check the rear brake
lights and see if they are working when you step on the brake pedal.
If the brake lights are NOT working, check the fuse labeled "STOP" in the instrument panel fuse box. If the fuse is good and yet still not shift from Park, the problem will lie in the Brake Light Switch, located at the top of the brake pedal arm. This switch controls the rear brake lights, and it also sends a signal to the Shift Interlock telling it to release when the brake pedal is depressed. Carefully inspect the electrical connector and wire harness for any loose, broken or damaged wires. Inspect the switch mount and contact points on the pedal arm for any broken or misaligned parts. If the visual inspection checks ok, replace the Brake Light Switch.
If the brake lights ARE working, then the problem will lie in the Interlock System. A common fail item here is the Shift Interlock Actuator. The actuator is located on the side of the shifter, behind the shifter assembly bezel. Again, carefully inspect the electrical connector and harness for any broken, damaged or pinched wires. If the visual inspection checks ok, suspect a faulty Actuator.
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