Possibly a bad key or ignition switch. http://repairpal.com/gm- passlock-anti-theft-systems
If your saying the starter motor won't crank and there is a problem with key, I suspect a problem with your security system? Does your key have a pellet in it? There is info all over the web about bypassing that pellet, but, if problem elsewhere in your security system, bypassing that pellet won't help anything.
I turn the key and the car want start it 's not the battery and not the starter.
1997 Cadillac DeVille Sedan FWD
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Maintenance & Repair
someone said there was an anti theft shut off or something that might need to be reset so the car would start, the car is a 2008
Cadillac DeVille
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Maintenance & Repair
Key is stuck in the ignition switch have to unplug battery to stop car from running. Put new starter in now have to bump starter to have car to start
1991 Cadillac DeVille Sedan FWD
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Maintenance & Repair
My car will not go out of park when I shifted to reverse. Then I triedbdrive and the same thing.
2002 Cadillac DeVille Sedan FWD
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Maintenance & Repair
The Fuel Data Center light display does not light and the turn signals do not flash. They come on but do not flash.
1993 Cadillac DeVille Sedan FWD
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Maintenance & Repair
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