Question about 2003 Cadillac Deville
It could be the neutral safety switch which prevents you from cranking the engine in gear.
But it could also be the anti-theft system. The system reads the chip in the key to allow the starter to crank the engine.
Is the security light staying on ?
Posted on Jan 15, 2013
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Posted on Jan 02, 2017
I had the same problem with my CTS. I took it to my car guy andhe could not get any codes, so he took it to a tranny guy and he had the same problem. I finally took it to the dealer,, and the Power Control Module was bad. It is under a recall for ten years 80,000 miles
Posted on Jul 29, 2009
SOURCE: 1997 cadillac deville anti theft
I had the same problem on my '96 cadillac seville. You need a new ignition cylinder lock (what your key goes into) because there is a wire inside of there that is broken that reads the chip on your key. Your key should be fine if this is true, the faulty ignition switch just isn't reading it.
Posted on Jun 25, 2009
It sounds like your batery is empty.
Or maybe your start rotor is a bit stuck.
if so give it a hit with a rubber hammer that can help loosen it.
Posted on Jul 11, 2009
Same that happened to me. There is a detailed write-up here: http://vatspasskey.com . The guy is great, this was the only way I was able to save my Park Avenue. I see it applies to your model too.
Posted on Apr 25, 2010
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