2004 Chevy Avalanche

Tiny
JOTL
  • MEMBER
  • 2004 CHEVROLET AVALANCHE
  • V8
  • 2WD
  • AUTOMATIC
  • 64,000 MILES
What does the illuminated symbol of a lock and car mean on my 2004 Chevrolet Avalanche. Once symbol appeared unable to start engine. How can I reset?
Sunday, February 14th, 2010 AT 2:29 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
That is indicating the Anti Theft system is engaged. If could be for many reasons. I hate to say it, but a dealer is the only place that will have the proper test equipment to diagnose the problem. If you have a different key, try it. Sometimes the sensor in the key goes bad. If that doesn't help, then you need to see a dealer.
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Sunday, July 18th, 2010 AT 11:56 PM

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