2004 Chevy Avalanche

2004 CHEVROLET AVALANCHE
64,000 MILES • V8 • 2WD • AUTOMATIC
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JOTL
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  • 1 POST
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?
Feb 14, 2010 at 2:29 PM
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JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 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.
Jul 18, 2010 at 11:56 PM
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