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I have a 2007 cadillac cts and the check antI theft system light is on car will start no gages working key will not come out. What could be causing this problem.

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The key stuck in the ignition is either a bad lock cylinder or more than likely a bad ECM. I have the same problem but replaced the lock cylinder and new key, that changed nothing. If your Anti Theft light is on and traction control, no gas gauge nor temp gauge, ECM. More and more will quit working or go crazy in time until there is no power anywhere

Posted on Dec 30, 2016

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What could cause anti theft system light come on on a 2007 cadillac cts


Visit the on-line store, know as reliable-store, they have the repair manuals. I'm sure you will get the solution of your problem.
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