Question about 1998 Chevrolet Malibu

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Reset anti theft

We put in another tumbler an key swich an now anti theft light come on an car not start

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  • 32 Answers

Have you tried leaving the key on for 15-20 min? I dont know if this works or your exact car and ut i know other gm cars can be reset this way

Posted on Nov 26, 2013

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Posted on Jan 02, 2017

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SOURCE: 1996 Camaro RS suddenly wont start - anti theft problem?

You can start it by putting into program mode...try to start, then turn it to off..,,then turn it to on (not start)..leave it on for 15 min...turn it to off for 2 min..and start..

This will reset the signal from the bcm to the pcm of the car.

you most like ly have a problem in the start switch key reader...It has to be replaced as a unit

Or it could be your bcm or pcm...very very expensive... try this first... If it does not work off to the dealership..don't even try to give this to a garage to fix. Gm has the software to reflash your computer.

Posted on Oct 26, 2008

  • 4 Answers

SOURCE: Chevy Tahoe 2004 Anti Theft Device has been activated.

leave the key on for about 5 to10 min then try to start. Are reset to computer by leaving the key on for 10 min and try to start the vehical.Do this procese 3 time then it shold reset

Posted on Feb 12, 2009

BillNorman
  • 20 Answers

SOURCE: Can anti-theft be reset.Lite on car won't start

Try to start car. When it fails leave the key in the on position. You will see the Theft System light flashing. Light will flash for 10 minutes, stay on and then go off. Turn key to off position, wait 10 seconds and start your car.

Don't waste your time or money taking this problem to a dealership because Chevy refuses to issue a recall on this problem. I went to the dealership 5 times. I wound up paying for 2 key cylinders, a BCM module, an ECM module. I finally took it in when the theft system light came on while driving. The problem was in the fuse & relay center underneath the hood. It was all corroded so it was replaced. No problems since then.

Posted on Dec 23, 2009

  • 5 Answers

SOURCE: When anti theft light is blinking the car wont

On a 2003 Chevy Maibu the theft system light comes on and blinks when the system is triggered. The car will not start and the fuel pump cuts out. You must turn key to on and have all doors closed. Keep the key to on for 10 mins til theft light turns solid and then disappears. Then turn key to start and it should fire up.

Posted on Aug 07, 2010

  • 3640 Answers

SOURCE: anti theft light

to reset theft system--turn key to on, leave for about 15 minutes. after 15 min. turn key off, wait 15 seconds. then try to start car. to bypass anti theft system-- all gms===go to site- newrockies.ca/vatsbypass.

Posted on Sep 11, 2010

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1 Answer

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your anti theft device is activated,you need to lock and unlock your doors a couple times with the key fob,not the key,and then you need to put the key in the ignition and start it,if you dont have your key fob,call your car dealer to get a new one,they are programmed for each car only,you cannot bypass it.

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07 ford focus anti theft light flashes all the time


If the security or anti-theft light is flashing when you attempt to start your car, and the engine does not crank or does not start, you have an anti-theft problem. The system may not be recognizing your key's key-less entry signal, or there may be a fault in the anti-theft module or wiring.
There is a reset procedure to stop this anti-theft light flashing.many a times this helps The reset procedure is as follows:-- Reset the alarm by locking and unlocking the drivers side door.Do this a couple of times and then check it will reset the factory security system . If the reset procedure does not helps then its time to get the anti-theft system checked.There is a short circuit in the anti-theft system wiring. For more detailed help on this anti-theft light blinking issues please click on the link below http://www.aa1car.com/library/troubleshoot_antitheft_system.htm
Thanks. you can rate this solution and show your appreciation.

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2 Answers

Single mom can't do nothing cuz of car


You may have a faulty ingition. Otherwise you have the very common GM anti-theft system. If you have a flashing anti-theft light with key in igniton, then this is what you should do:

Put key in ignition, turn to ON position (Do NOT Start)
Leave in on position for EXACTLY 10 Minutes
Then while watching the anti-theft light, as SOON as the light turns off after 10 minutes, START CAR IMMEDIATELY after light turns off.

This will reset the anti-theft

Aug 20, 2009 | 1998 Dodge Caravan

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Anti-theft does not disable the lock cylinder itself it only keeps vehicle from starting,lock cylinder will still turn and energize the electronics. Sounds like you have a stuck tumbler in the lock cylinder itself,some times turning steering wheel with one hand while trying to turn the key with the other will free it up.

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