* Shifting the gear selector: Make absolutely sure the gear selector is in Park (P). Even a slight misalignment can prevent the key from releasing. Try gently rocking the gear selector.
* Steering wheel lock: The steering wheel might be slightly locked. Gently jiggle the steering wheel while trying to turn the key.
* Key condition: Examine your key for damage, wear, or dirt. A bent or worn key can impede the ignition mechanism. Try cleaning it with a key cleaner or compressed air.
* Electrical issues (less likely but possible): A weak battery can sometimes cause issues with the ignition system. Try starting the car with jumper cables if the battery is weak.
If the simple steps fail, the problem likely lies within the ignition switch or related components. This requires more advanced troubleshooting and might involve professional help. Here are some possible deeper issues and approaches (proceed with caution, as improper handling can worsen the problem):
* Worn ignition switch: This is a common culprit. The ignition switch is a complex part that wears out over time. Replacing it is often the solution but requires specialized tools and knowledge to avoid damaging the ignition cylinder. This is best left to a qualified mechanic.
* Ignition cylinder issues: The cylinder itself might be worn, damaged, or clogged with debris. Again, this typically requires professional attention.
* Broken shift linkage: A problem with the gear shift linkage can prevent the key from releasing, even if the car is in Park. A mechanic can diagnose this.
* Steering column issues: A problem in the steering column mechanism could be jamming the ignition. This is also best handled by a professional.
What NOT to do:
* Force the key: Forcing the key will likely damage the ignition switch or cylinder, potentially making the problem worse and more expensive to repair.
* Use excessive force on the steering wheel: This could also damage components.
* Attempt to dismantle the ignition switch yourself unless you have significant automotive experience: Doing so incorrectly can cause serious damage.
Recommendation:
For a 20-year-old car, the most likely scenario is a worn ignition switch or cylinder. Given the complexity and potential for further damage, it's strongly recommended to take your Buick Regal to a qualified mechanic or a locksmith specializing in automotive locks. They have the tools and expertise to diagnose the problem accurately and perform the necessary repairs safely. Trying DIY solutions without sufficient knowledge risks causing irreversible damage and a much more costly repair.
