Cadillac deville 2003

Asked by Nov 29, 2018 at 01:57 PM about the 2003 Cadillac DeVille

Question type: Maintenance & Repair

My cadillac deville started saying security theft and
turned off i try to turn it on but it only clicks but
wont start what do i do

2 Answers


It's probably just the key fob battery is dead. Replace it, and if that doesn't fix the problem, you'll have to reprogram it. Have a mechanic or dealer reprogram so the car and the fob can talk to each other. OR if you're somewhat handy, the owners manual (available on line) will show you how: it's really easy.

My Caddi, I can't put my key in the ignition and my security light is flashing.

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