Anti-theft security system activated

1999 CADILLAC DEVILLE
150,000 MILES • 3.2L • V6 • 2WD • AUTOMATIC
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ANGELABEVILL71
  • MEMBER
  • 1 POST
I try to start the car and it turns over and runs for about 30 seconds and shuts off displaying theft security system. What could I do?
Oct 19, 2020 at 12:11 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Good morning,

I attached a guide for you for resetting the security system.

https://www.2carpros.com/articles/how-to-reset-a-security-system

Give this a try and let me know how it works out.

Roy
Oct 19, 2020 at 1:57 AM
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