2002 Buick Regal Q&A
2002 Buick Regal Question: ignition key
The key will not be able to be removed unless the trans is shifted into park. If it doesn't see that it's in park then it won't let you remove the key. The next time this happens try moving it in and out of park to see if that helps. If it does it could be either an adjustment is needed or replacement of a bad switch to repair the issue. - rdude135
Use a spray can of electrical contact cleaner without lubricant to clean switch in gear Shift console - Visitor
I had and fixed this problem. Remove trim covering center console by pulling up on it. There are push-in clips that are made to simply pop out. Then find the contact switch way down that moves when you push the button on the shifter with your foot on the brake. You may or may not need to remove something else I can't remember, but once you see it thats what you need to clean and lubricate. - Visitor
The automatic transmission shifter may fail, or a wire may break near the shifter causing the ignition key to become stuck in the ignition lock cylinder.
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sometimes it starts sometimes it doesnt runs good when it starts and also has a security key