Question about 1997 Buick LeSabre

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When i turn the key on the car doesn't start and a security comes up on the dash

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I have fixed this problem recently in a LeSabre using the procedure here: http://vats.likeabigdog.com/
Yo will need some resistors, an ohmmeter and a soldering gun/iron to do this. Let me know if you have questions.

Posted on Sep 28, 2010

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Posted on Jan 02, 2017

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Working on a 2005 Buick LaCrosse cxs with the 3.6l. Car won’t start. Won’t turn over or anything. Hooked tech 2 to it and it says fuel security disabled. Have master key. Tried reprogramming but it doesnt...


First make sure the battery is fully charged. Then check for clean battery post connections. Then check all the main fuses located in the plastic box under the hood close to the battery on top of the inner fender. You should have all dash lights if everything check out to this point and it should turn over with the key.

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Ford likes to put the security chip in the dash. If it doesn't come on, No start. Could the ignition switch also.

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Security light cons on


try a different key, the light will come on and stay on if the tumbler is not reading the resistor in the ignition key.
if that doesn't work try to start car, then don't turn key off leave it in on position for about 10 until the security light goes out, turn key off then try to start again.

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Reset theft system in 02 Buick Rendezvous


Just turn the key on, if that doesn't reset it you have a failed part and will need the help of the dealer

Jun 16, 2012 | 2002 Buick Rendezvous

1 Answer

1996 ParkAvenue Buick want crank turn the key makes no sound but everything comes on radio lights have checked starter, new battery fuses


GM cars are notorious for faulty anti theft security systems. When these fail, the car thinks its being stolen and shuts down the starter. Most noticeable symptoms are the car not starting, everything else still working, and a light illuminated on the dash that says "security". If you see this light when it doesn't start, then this is 100% your problem. Go to this link for info and ways to fix it yourself for cheaper. http://vatspasslockpasskeysecurityhelp.yolasite.com/

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1 Answer

Securyty ligth car dont star


ANY TIME SECURITY LIGHT COME ON YOU HAVE FAULT IN THE IGNITION KEY OR KEYS THEY COULD BE WORN OUT WHERE TO A POINT WHERE THE BCM AND PCM DONT RECOGNIZE THE CAR KEYS CAUSING NO START CONDITIONS.ALSO WORN KEY SWITCH AND BCM WILL CAUSE NO START CONDITIONS.TRY THESE TWO THINGS TRY ANOTHER CAR KEY IF STILL DONT CRANK.PUT KEY IN IGNITION TURN KEY TO ON POSITION WITH ENGINE OFF LEAVE KEY ON POSITION IN IGNITION FOR 10 MINUTES WATCH DASH SECURITY LIGHT WHEN IT TURNS OFF IN 10 MINUTES.TURN OFF IGNITION FOR 5 SECONDS THEN TRY STARTING CAR IF CRANKS OR DONT STILL THE PROBLEM IS IN THE THEFT SECURITY SYSTEM NEED TO GET DEALERSHIP TO FIX THEY HAVE DIAGNOSTIC EQUIPMENT TO FIX AND REPROGRAM THEFT SECURITY. SYSTEM.

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1 Answer

Security light comes on and car doesn.t start


try another key. if this doesnt work the wire in the tumbler assembly most likely broke and you will need it replaced. ( Ignition Switch)

Jul 18, 2009 | 1999 Oldsmobile Aurora

1 Answer

Electronic chip in key


As far as bypassing the securtiy chip, we can't tell you that one as it would assist any user on here to steal your car (or others).
When you turn the key to attempt to start it do the dash lights dim or even go out ?

Robert

Sep 25, 2008 | 1999 Buick LeSabre

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