Question about 2005 Chevrolet Avalanche

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Anti-theft/security light on dash doesn't flash on 2005 avalanche

I have a 2005 avalanche. the anti-theft/security light on the dash doesn't flash when i lock it and walk away. anyone know why and how to fix it?

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  • 6 more comments 
  • luxy1976 Feb 05, 2009

    No, haven't tested the bulb....easy way to get to it. (Sorry, I'm a girl and I just got my truck 2 weeks ago...lol)

  • luxy1976 Feb 05, 2009

    K, tried that and nothing happened, alarm didn't go off.

  • luxy1976 Feb 06, 2009

    that was uncalled for.....i just want to know if anyone knows how i can fix my truck.

  • luxy1976 Feb 06, 2009

    i'm not saying it's because i'm female! just wanted to know if i had to pull my dash apart to check the light, that's all! i did the check you said to verify the system is armed and it didn't work. what next? do i have to take it in or is it something i can fix myself??

  • yadayada
    yadayada May 11, 2010

    Yes we know how, but you are saying u can't because u are a female, right? did u verify the system operation by the test I outlined???

  • yadayada
    yadayada May 11, 2010

    U KNOW WE HAVE WOMEN MECHANICS IN MY UNION, DARN PRETTY ONES, THEY CAN DO IT SO CAN U. FEMALE IS NO EXCUSE.

  • yadayada
    yadayada May 11, 2010

    TO EASILY VERIFY THAT THE SYSTEM IS ARMED AND WORKING JUST LOCK THE CAR WITH THE REMOTE AND LEAVE THE DRIVERS WINDOW ROLLED DOWN, REACH INSIDE AND OPEN THE DOOR, THIS WILL SET THE SECURITY SYSTEM OFF AND VERIFY IT WORKS.

  • yadayada
    yadayada May 11, 2010

    HAVE U TESTED THE BULB?

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Several GM products, including the Chevrolet Impala and Malibu, the Oldsmobile Alero, the Pontiac Grand Prix, and Saturn Ion, have issues with the Security light coming on. This is many times an indication of a failing Body Control Module (BCM). Initially, the Security light will come on then go off, progressing to a constant on light, before the car will refuse to start. Other symptoms may include erratic action of electronics, a clicking sound coming from the glove box, and the air conditioning failing to blow cold air. I recommend a shop that specializes in the electronic systems of vehicles to diagnosis and make the necessary repairs. They should keep the car until they replicate the symptoms described. A new BCM from GM should cost about $230; plan on another $200 for them to diagnose the problem, replace the unit, and program the new unit. The dealers quote between $700 and $1,100 for the same repair. My experience and the experiences I have read on the internet, indicate the new BCM should last only about a year.

Posted on Aug 14, 2009

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