Question about 2003 Oldsmobile Alero

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2000 ALERO SECURITY LIGHT

I have a 2000 alero and my security light is always on how do i get it to go off

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  • kass15z Nov 10, 2008

    I have the same problem and some times it times out and I am stuck for 10 minutes!

  • Anonymous Dec 05, 2008

    Should I be concerned if the security light comes on in my 2000 Alero? What does the light indicate?

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When the vehicles security light is flashing and the car won't start..put the key in the ON position and wait until the security light stops flashing and then turn OFF and then start. this is from a security glitch and it shuts down the gas so car won't start. Good luck!!

Posted on May 01, 2009

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The switch in the door could have a crossed wire. you will have to pull out the button and check the wires on all doors and trunk/boot. joe

Posted on Nov 21, 2008

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2 Answers

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

1 Answer

Replaced ignition car wont start


Here is a link that can help you with the bypassing of your Passlock antitheft system. http://vatspasslockpasskeysecurityhelp.yolasite.com/

Mar 25, 2012 | 2000 Oldsmobile Alero

1 Answer

I just replaced the ignition switch and lock in my 2000 alero and now it starts and runs fine but the security light is on and stays on. How do I reset this security light?


TURN THE IGNITION SWITCH TO THE ON POSITION FOR 10 MINUTES WITH ENGINE OFF.UNTIL SECURITY TURNS ITSELF OFF.THEN TURN OFF IGNITION SWITCH WAIT 5 SECONDS.THEN START THE ENGINE.IF SECURITY STILL ON DEALERSHIP HAS TO FIX.

Jan 18, 2011 | 1999 Oldsmobile Alero

1 Answer

Alero security light.


if security light is flashing turn ignition switch to run position but do not try to start light will be flashing let vehicle sit for about ten or fifteen mins. light will stop flashing when it does start car you have just reset security system

Aug 25, 2010 | 1999 Oldsmobile Alero

2 Answers

Where is the thermostat on a 2000 alero 2.4 liter


The thermostat is virtually always right at the engine end of the upper radiator hose. There is virtually always a housing that the hose clamps onto, which housing is then bolted onto the engine. The thermostat is under that housing.

Jun 23, 2010 | 2000 Oldsmobile Alero

2 Answers

2000 Alero Security light flashing and wont start


With the new lock cylinder in it, turn the key on. The security light should blink. Leave the key on for 10 minutes, the security light will quit blinking and go out after 10 min. This will reprogram your security system and the car should start. Also leave a battery charger on it while the key is on, If the battery goes dead during the 10 minute reprogram sequence, you will have to start over again.

Mar 08, 2009 | 2000 Oldsmobile Alero

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