Question about 2005 Chevrolet Avalanche
2005 avalanche security system/anti theft not working. Light on dash doesn't come on when door locks are activated. Bulb is not burnt out. Tried locking doors w/window open and reaching in to open door. Alarm did not go off. Anyone know how to fix this??
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
all dash lights keep coming on and either stay on or flash until you step on brake....also the dinger keeps dinging until you press on the brake.....we have had a tech work on it but have no idea whats going on.....HELP
Posted on Feb 04, 2010
sounds like bad fusible link or u forgot to hook up wire somewhere (i think dealear wrong wouldnt start if problem was anti theft) (after all if your stealing a car would u care if interior componets worked probley not)
Posted on Jun 12, 2010
This an all too common problem on GM vehicles. Fortunately there are ways to beat this without taking to the dealer. Go to this link and try the quick fix. If that doesnt work you'll have two options, taking to the dealer to get things diagnosed and replaced, or bypass the system entirely. This link will help you.
Posted on Oct 21, 2011
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