Question about 1993 Buick LeSabre

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Just wouldnt start one day and the security light

Wont start and security light is flashing 1993 buick lesabre put computer on it and only says electrical. is there any way to narrow that down?

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  • 355 Answers

The TDM in the security system (VATS/PassKey) is having problems, it's typical on those cars. You can find a great write-up here: http://newrockies.ca , it was the only thing that saved my Park Avenue.

Posted on Jul 16, 2010

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Put new alternator and battery in 1995 Buick Lesabre with key pass will turn over and run afew seconds but wont stay running


actually a pretty easy fix. The pass key computer lost its programming. Put the key in and leave it on with the security light flashing. Just turn off all your accessories and make sure battery is pretty good charge. Anyway after you leave the key on for ten minutes the security light will come on steady so turn key off and right back on and start car. If security light still starts blinking and car stalls then do it again. It will usually work the first time but can take a few times to get it right.

Dec 27, 2010 | Buick LeSabre Cars & Trucks

1 Answer

The security light on my 1993 Buick Lesabre is flashing and the engine won't sart. It was running yesterday


try the spare key ,if that works check the other key in case chip has fallen out

Aug 17, 2010 | 1993 Buick LeSabre

1 Answer

My daughters buick wont start there is a light with security light up, whats the fix?


either the chip has fallen out of the key ,or their is something else wrong ,try the spare key and if that doesnt work then call the dealer it wouldnt be a good security device if i could give you a quick fix would it

May 27, 2010 | 1997 Buick LeSabre

2 Answers

1993 buick lesabre won't start. security light is


The coded key probably needs to relearn. Turn ignition to crank and release. Let sit in on position (engine off of coarse) for a full 10 min. turn off for 30 sec. and repeat 3 times engine should start. This procedure should take 30 min. so a booster is needed to maintain a full 12 volts. Do not attempt w/out a charger connected;

Mar 30, 2010 | 1993 Buick LeSabre

1 Answer

Car won't start and when I put the key in the ignition the security light starts flashing


Replace ignition lock cylinder. The wires have broken that go to it.

Apr 19, 2009 | 1993 Buick Park Avenue

2 Answers

Won't turn over , security light comes on when trying to start,


try puting te ignition key in the drivers door lock an unloack it 3 or 4 times then try agin if it dosnt work, key needs reprormming

Mar 18, 2009 | 1993 Buick LeSabre

1 Answer

1993 buick lesabre limited


I would try cleaning the conection at the coil pack and use tuneup grease when you put it back together then see how it works.

Jul 28, 2008 | 1993 Buick LeSabre

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