Question about 2001 Oldsmobile Alero

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Security System on 2002 Oldsmobile Alero

The Security System keeps shutting down the cars ignition system. What would cause that

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Try turning the ignition key on to the run position but do not start it leave it this way for aprox 10 minutes. The security light should do something after this amount of time. For example if it is flashing it will go off or stay on some cars are different then others. What this is doing is relearning the key resistance. If it does not work the first time try it again.It sometimes takes several tries.

Posted on Dec 15, 2008

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How to reset anti-theft on a 2000 alero


The security, antitheft or lock picture/icon is a visual indication that something in the car's antitheft system is failing. In most GM cars and trucks there is a hidden system that most people are unaware even exists. From the moment you put your key in the ignition, there begins a constant line of communication between your key's security chip or transponder, to the ignition's lock cylinder, and then to the car's TDM (Theft Deterrent Module). These 3 parts are in CONSTANT communication. If the key is in the ignition, then these parts are sending signals to each other. The security light illuminates when that signal gets broken, even just for a second. When the signal breaks, the car misinterprets this as an attempt at theft and goes into antitheft mode. The car thinks its being stolen or hotwired because it is not getting that signal from YOUR specific key. This is why the security light turns on and shuts down your vehicle. This link explains it pretty well.
http://www.diy-gm-security.com/

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Apr 04, 2015 | 2000 Oldsmobile Alero

8 Answers

What is causing my Oldsmobile Alero to shut off after starting?


As for the lights being on many GM products do that right after the key is off but if you open the driver's door they should go off. Not sure if that model is part of the ignition switch recall or not. Due to numerous ignition switch problems I would have the ignition switch replaced. The key cylinder IS NOT the switch. The key lock cylinder operates a rod that in turn moved the ignition switch to various positions. Battery must be disconnected and care taken not to deploy the airbag while the switch is replaced. I think I would go with a after market brand such as Delphi rather than another AC Delco factory switch.

The engine shutting off after starting may also be the ignition switch not moving to the RUN position properly. Before doing anything else I'd replace the ignition switch then go from there if the two problems are not cleared up.

Jan 24, 2015 | 2002 Oldsmobile Alero

1 Answer

2002 oldsmobil alero security light stays on


The security light is a visual indication that something in the car's antitheft system is failing. In most GM cars and trucks there is a hidden system that most people are unaware even exists. From the moment you put your key in the ignition, there begins a constant line of communication between your key's security chip or transponder, to the ignition's lock cylinder, and then to the car's TDM (Theft Deterrent Module). These 3 parts are in CONSTANT communication. If the key is in the ignition, then these parts are sending signals to each other. The security light illuminates when that signal gets broken, even just for a second. When the signal breaks, the car misinterprets this as an attempt at theft and goes into antitheft mode. The car thinks its being stolen or hotwired because it is not getting that signal from YOUR specific key. This is why the security light turns on and shuts down your vehicle.
http://vatspasslockpasskeysecurityhelp.yolasite.com/

Jan 24, 2014 | 2002 Oldsmobile Alero

1 Answer

2000 oldsmobile alero is shutting off imediatly after starting


The security system may be your problem. Look for a light on the dash that says SECURITY or ANTITHEFT when the vehicle won't start. This light is a visual indication that something in the car's antitheft system is failing. In most GM cars and trucks there is a hidden system that most people are unaware even exists. From the moment you put your key in the ignition, there begins a constant line of communication between your key's security chip or transponder, to the ignition's lock cylinder, and then to the car's TDM (Theft Deterrent Module). These 3 parts are in CONSTANT communication. If the key is in the ignition, then these parts are sending signals to each other. The security light illuminates when that signal gets broken, even just for a second. When the signal breaks, the car misinterprets this as an attempt at theft and goes into antitheft mode. The car thinks its being stolen or hotwired because it is not getting that signal from YOUR specific key. This is why the security light turns on and shuts down your vehicle. It will normally allow the vehicle to run for 1-5 secomds and then shut off the fuel injectors. This link explains it pretty well.
http://vatspasslockpasskeysecurityhelp.yolasite.com/

Nov 12, 2013 | 2000 Oldsmobile Alero

1 Answer

2003 Oldsmobile Alero dash board is out and car wont start


The ignition switch is bad,the passlock security system is shutting down the injectors so it can'nt be started.Computer can not read the code on the key.

Apr 25, 2011 | Oldsmobile Alero Cars & Trucks

2 Answers

99 Alero Passlock and starting problem


YOU CANT BYPASS PASS KEY ANTI THEFT SECURITY SYSTEM.ITS PART OF THE PCM.IT WAS MADE WITH CAR.THATS WHY YOUR CAR NOT CRANKING.THE SECURITY THEFT SYSTEM SHUT DOWN FUEL SYSTEM.THE DEALERSHIP HAS TO FIX. IF YOUR IGNITION SWITCH KEY CYLINDER LOCK OR KEYS ALSO THE BCM FAULTY.THE DEALERSHIP HAS TO REPLACE FIX THEM AND REPROGRAM TO PCM IN ORDER FOR CAR TO CRANK.

Jun 26, 2010 | 1999 Oldsmobile Alero

1 Answer

What can i do about the security problem and stalling?


HAVE YOUR CAR HOOK UP TO A DIAGNOSTIC SCANNER TO SEE WHAT CAUSING THE CHECK ENGINE LIGHT TO COME ON.IF YOU ARE HAVING SECURITY PROBLEMS THE DEALERSHIP HAS TO FIX IT.SOME TIMES YOUR IGNITION KEY OR LOCK CYLINDER IS WORN WHERE THE BCM AND PCM DONT RECOGNIZE IT.THINKING ITS A THEFT CAUSING CAR TO SHUT OFF.SEE THE DEALERSHIP HAS TO SEE IF YOUR KEYS IS WORN TO A POINT WHERE THE BCM AND PCM.DONT RECOGNIZE. THE IGNITION KEYS.SO THEY HAVE TO REPLACE THE KEYS ALSO IGNITION SWITCH AND BCM.THEN THEY HAVE TO REPROGRAM THE NEW KEYS AND IGNITION AND BCM TO THE PCM SO THE CAR WILL CRANK UP.THIS IS A DEALERSHIP FIX.

Sep 18, 2009 | 1999 Oldsmobile Alero

1 Answer

Security System on 2002 Oldsmobile Alero


the most common cause of this is the key, to check this use another working key, if the problem persists the ignition lock cylinder sensor is defective and the lock cylinder must be replaced, the dealer will need to do this as the security system must be re-programed to accept the new key code.

Feb 09, 2009 | 2004 Oldsmobile Alero

1 Answer

Security system shut down the car.


it's the ignition lock cylinder...my 2002 v-6 had the same problem twice within 45k of being replaced the 1st time

Jul 23, 2008 | 2002 Oldsmobile Alero

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