Question about 2001 Oldsmobile Alero

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Not starting, no security light blinking , but after 24 hours the car starts up again

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I replaced a faulty ignition control module on a 1992 Buick Regal.The engine started only after I disconnected the negative battery terminal to reset the computer and waited approximately 24 hours.For...


This may be related to the antitheft system The system is known for turning off the starter and/or injectors when it fails. Is there a light on the dash that says SECURITY? This is a common problem worth looking into. http://www.diy-gm-security.com/

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Mar 27, 2015 | 1992 Buick Regal

2 Answers

Security light is blinking and car won't start just replaced the fuel pump car will start for a couple secounds and dies


you need your manual it tells how to reset security system or give dealer a call they should tell you

Jun 20, 2014 | 2001 Pontiac Grand Am SE

1 Answer

2005 Chevy Cobalt Security LIght and Won't Start


Have you tried to do a hard reset? Disconnect your battery for 24 hours. And try it again. This will usually fix a lot of computer malfunctions. Good luck.

Feb 25, 2014 | 2005 Chevrolet Cobalt

1 Answer

Just replaced the ignition in 2005 impala how go I recode it to start the car


Takes about half an hour,be sure battery is charged,crank engine and leave key on(like you would if it started) security light should blink or stay on for about 10 minutes,when it goes out ,turn key off,crank engine again and leave key on,same thing for about 10 min, have to do this 3 times,3rd time engine should start and you're done.

Dec 14, 2013 | Cars & Trucks

1 Answer

2008 dodge ram had transponder key made and now truck wont start battery is good only makes hum noise when key is in on position


When the start for 2-3 seconds and die it's mean just one thing usully , you need to check if the security light blinking and if it doe's you need to call the locksmith to program the transponder key. Locksmith East Aurora Ny 24 Hour Locksmith 716 249 2944 in East Aurora Ny
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Jan 20, 2013 | Dodge Ram Pickup 1500 Cars & Trucks

3 Answers

I had my ignition cylinder & housing replaced now my car won't start. How do I reset the passlock system so my car will start


Hello, Try this: Get in car, turn the key to start, when it don't start let key come back to run (do not turn off) The security light should be blinking, let car set for about ten minutes or until security light stays on steady at that time turn key off for 10 seconds then turn back on (do not go to start) security light will be blinking again wait 10 minutes and security light should go out. Turn key off, wait 10 seconds . Turn key on (do not go to start) security light will be blinking again, wait 10 minuets and security light will go out. AT THIS TIME TURN KEY OFF FOR 10 SECONDS THEN START THE CAR.

Sep 14, 2010 | Saturn SL1 Cars & Trucks

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

1 Answer

Won't start, security light blinks for 10 minutes


there is a computer chip in the lock cylinder that goes bad ,so change the key and cylinder,then leave new key on until the light stops flashing about ten minutes this will set your new key to the security system hope this helps

Feb 06, 2009 | 1999 Pontiac Grand Am GT

1 Answer

Security system


Looks like the TDM in the security system (VATS/PassKey) is having problems, it's typical on those cars and it can get worse till the car wont start anymore. You can find a great write-up here: http://newrockies.ca , it was the only thing that saved my Park Avenue.

Nov 01, 2008 | 1999 Oldsmobile Cutlass

1 Answer

1994 gmc safari


Sounds like your Passlock security system went into the tamper mode. If your dashboard security light blinks when the ignition is turned on, your Passlock security system is disabling the injector module, preventing the car from start. Try this:
1- turn the ignition on and just touch the starter, without getting the motor to fire, then leave the ignition in the "on" position. The security light will blink for about 10 minutes. When the light stops blinking, turn the ignition off and leave off for 3 minutes.
2-repeat the step #1, 3 or 4 times. You will know that is fixed when you turn the ignition on and the security light does not blink, then the car will start. Make sure to stay inside the car when you're doing this, as opening the doors will trip the security tamper mode on again. Once the tamper mode is off, the car starts and opening the doors will not trip the Passlock tamper mode.

Aug 06, 2008 | 1994 GMC Safari

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