problem with the theft deterrent system-envoy 2002

Asked by Jan 12, 2008 at 06:28 PM about the 2002 GMC Envoy

Question type: Maintenance & Repair

I just had change my battery for a Envoy 2002. Right after that the secutity light came on and the car did not start. When I turned the key it just show the security light and the battery light and does not start up. Does any one knows how to reset the theft deterrent system? I leave in El Salvador , Central America and the car shop where I took the car seems to be kind of lost with the issue. I really apprecciatte any help. Best regards

1 Answer


Sounds like the anti-theft system does not recognize that the loss of battery power was from intentional battery changing. Have them try to disconnect the battery for ten seconds and then reconnect. Upon reconnecting the horn should blow one time. If the car still does not start you may have a problem with the security system computer itself. This will require a dealership with the proper computer tools to diagnose and repair. Good luck.

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