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Theft system car won't start - Cadillac Cars & Trucks

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Try turning the key on and leaving it on for 10 to 15 minutes and it should reset the security system

Posted on Nov 19, 2013

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Posted on Jan 02, 2017

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SOURCE: theft light blinking/car won!t start

If you have key numbers on the door, you should enter the code, then immediately start the truck. If this does not work contact the dealer for a sequence to reset the alarm.

Posted on Jun 28, 2009

  • 6 Answers

SOURCE: anti-theft system will not allow car to start

Have you chaged the battery on the remote. And also do you have a valet button under the dash somewhere if you push it for about 15-30 sec. it should reset the alarm. if it fails you might need a whole new alarm system.

Posted on Jun 28, 2009

  • 1 Answer

SOURCE: theft system

no enciende el coche, en el tablero esta pendiendo y apagando la luz de theft system. que puedo hacer para que funcione el coche

Posted on Mar 24, 2011

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SOURCE: Hello I have a 2002

Yes there is a bypass. Costs about $200.00. You should be able to put the key close enough to the cylinder to get the security to go off. I don't know what you did to get the cylinder out. but there is a chip mounted to the steering column. once the key is close enough to it it will let the car start. If you broke the chip getting the cylinder out then you have some money to put out to get it running.

Posted on Jul 02, 2011

  • 96 Answers

SOURCE: 1997 chevy malibu anti theft system how do I fix

The late-90's GM Passlock system (e.g. 1997 Malibu, Regal, Impala, etc.) has a part around the ignition tumbler that goes bad and no longer reliably detects the valid key. In that situation, the "Theft System" light will slowly flash and the carburetor is cut off so the engine won't start. The time-out on the system is 10 minutes - you don't have to do anything, you don't have to disconnect the battery, the key can be out of the ignition -- it's just a time delay. After 10 minutes, the light goes out and you can try again (but if the key is again not detected, the light will start flashing again and you have to wait another 10 minutes)
Someone else, who had this problem, told me to remove all other keys from my keyring. The weight of the other keys pulls on the ignition key causing the key to be unreadable. It has been 7 weeks since I have been doing this and have not had a problem

Posted on Sep 10, 2011

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1 Answer

Why won't my 2003 cadillac cts start with the new theft deterrent module?


there is one wyre you can cut coming from the computer check itrenet taht will disable antitheft everything else will work properly that will let you no if it is the anti theft

Mar 30, 2013 | Cars & Trucks

1 Answer

I have a 2003 chevy malibu that won;t start. When you turn the key to on the Theft System light comes on steady ( no flashing). I t used o go into this mode periodically where the Theft System light...


I have had the same problem. This has happened to me three times in the past nine months or so. Per the owner's manual, you turn the key to the on position and wait about ten minutes. This resets the system and when the "Theft System" light goes out, it starts right up. I did this each time and it started right up.

Jan 02, 2013 | 2003 Chevrolet Malibu

1 Answer

1997 Buick theft system light flashes won't start


Try turn key on car but not start for few min.Call dealer for alarms ask ththem.Or get online.

Aug 12, 2012 | 1997 Buick Skylark

1 Answer

Replaced the fuel pump. the car starts, but won't stay running


The anti-theft system will keep the car from being driven, so I would start there. You may need to reset the anti-theft or check the ignition key for problems.

Jun 22, 2012 | 2001 Nissan Maxima

1 Answer

06 trailblazer trouble with anti theft system, I think, starts right up then other times the anti theft light comes on and it won't start. can try it 2-4 hours later and it starts right up????


The first thing to do get it checked for DTC'S - diagnostic trouble codes . Not at auto zone or any other parts store , you want to have full scan of all the modules on the car. Don't know how much you know about automotive electronics , computer controlled systems etc.... Your vehicle has at least 10 modules (computers ) on board , there all talk to each other on a serial data network . C.A.N - controller area network . Or in the case of GM it has it's own . GMLAN -
How to Diagnose Controller Area Network CAN When you turn that ignition switch to start it is an input to the computer ,be it the PCM or BCM ..

Jul 01, 2017 | 2004 Chevrolet TrailBlazer

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Replaced ignition switch in 1999 chevy cavaliar rs, anti-theft light comes on and stays on and won't allow car to start and remain on or run


You have to do a relearn procedure on the anti-theft system:

Attempt to start the vehicle. Leave the ignition on until the THEFT SYSTEM indicator turns off (about 10 minutes). Turn the ignition switch off. Leave the ignition switch off with key in for about 10 minutes. Attempt to start vehicle.

May 24, 2011 | 1996 Chevrolet Cavalier

1 Answer

My car was running fine. I turned it off and now it won't start and my keyless remote or trunk opener or nothing works. The horn won't even honk. Is this something to do with the anti theft...


Might possibly be. Pontiacs were really tied into that anti theft security system. They were notorious for breaking. Here is a link to a site about these SECURITY systems. And possible DO IT YOURSELF solutions. http://vatspasslockpasskeysecurityhelp.yolasite.com/

May 21, 2011 | 2006 Pontiac Grand Prix

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