Question about 1997 Buick LeSabre

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Alarm system sounds off for no reason ('97 Lesabre Limited)

Car can be sitting all day with Alarm System activated, out of the blue alarm will sound complete with lights and horn.

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  • GRbuey Nov 03, 2008

    Same problem, if I lock the vehicle I can expect to be woken up in the middle of the night with the alarm waking the neighbours. Please let me know how to resolve this issue.

  • bev and bill Jan 16, 2009

    We had the same problem this morning ( outside temp was 10 below zero ) The alarm started blaring... and starting the engine did not make it go turn off ! We had to disconnect the battery cable. ** also, not sure if this has anything to do with this problem or not, but, our dashboard security light is staying lit all the time , while driving. The alarm system works.. but, the light just stays on.. If anyone can help with either issue.. please let us know... ( our le sabre has only 40 thousand miles on it ).

  • Anonymous Feb 22, 2009

    I disabled the Checkmate alarm with the Valet botton so the siren does not go off, the factory alarm ( the Horn ) still goes at times when I lock the doors.The Security light flashes sometimes even with out the alarm going off when I start the car ,then it clears.Its seems to happen when the weather is cold.I have 33,000 miles on the car garage kept and want to keep it. I called the service manager he said the factory alarm works with the key cylinder for the door and trunk locks.He said it cannot be bypassed.So I may have to take it them and pay the price.Any suggestions before I take it in for service?



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I had the same problem. The alarm system on my 1997 Le Sabre self-actuates. Luckily, it went off once when I popped the trunk. I went to Auto Zone and bought a generic trunk replacement lock. I noticed the original lock had a funky push-pull type of switch used to activate the alarm. This switch was likely hair-line on/off and when the temperature changed, it activated.

I went ahead and replaced the lock without the switch, but you can try simply unplugging the switch through the hole in the metal behind the lock to see if that might stop the alarm from arming itself (or cut the wire).

Good luck, it's a "hairy" problem.

Posted on Jun 14, 2009


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