Question about 2006 GMC Sierra

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How does a GMC Anti-Theft Work?

I have a 2006 GMC Sierra Denali with an anti-theft system. It's been broken into twice in the last year by hammering or punching out the locks. Neither time did an alarm sound. Should it have? Is my alarm 'broken'?

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  • Anonymous Mar 16, 2014

    My 1997 GMC Jimmy's alarm system goes on and it shuts off for a few seconds and comes back on. Can't get it to shut off to start vehicle. What is the problem?

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Anti theft in you gm vehicle is to prevent some body from driving away with your vehicle. Not to prevent someone from breaking into it. You need to have a secondary alarm system installed. This will protect the contents of your Denali. Mike

Posted on Jan 06, 2009

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