Car doesn't start after I used an old key.

Asked by Feb 21, 2017 at 07:55 PM about the 2007 Chrysler 300

Question type: Maintenance & Repair

Lost keys for my Chrysler300 so had a new one made. Worked fine until I
found lost keys and tried one. Now car won't start. Unhooked battery but
didn't reset. Any ideas?

1 Answer

83,205

Clearly it is a security system issue. You will probably have to take the car to a Chrysler dealer.

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