1996 Buick LeSabre Logo
jane cross Posted on Jul 11, 2012
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Buick security light flashing? How to reset security?

The security light came on, and the car will not crank up. The mechanic worked on it a little bit, and now it cranks up but dies soon afterwards. it keeps on cranking up but seems like choking up on something and dying real quick. The security light is flashing.

1 Answer

John Ziehm

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  • Expert 206 Answers
  • Posted on Jul 11, 2012
John Ziehm
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Joined: May 05, 2011
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If you have a remote key fob for your locks etc it very much sounds like the battery is dead which will cause the car to"lockdown" so-replace battery. Good luck!

5 Related Answers

Anonymous

  • 1 Answer
  • Posted on Sep 02, 2009

SOURCE: 1987 Buick Century Limited V-6 engine w/ac.

I took my car to my mechanic. He did a diagnostic circuit test on the engine and then replaced the distributer ignition module and camshaft and crankshaft position sensors.

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Anonymous

  • 334 Answers
  • Posted on Feb 10, 2011

SOURCE: security light flashing. car won't

It's when the security light starts flashing that the infamous "chip" in the key becomes a nightmare to many. Gradually the car begins not cranking anymore or if it cranks it would start and die in a second. Randomly it will do this more and more often until it won't start anymore. VATS, PASSkey and Passlock immobilizer systems are killing cars all over North America, they have a short lifespan and are certainly more effective against owners than thieves. Here is how you save your car
1st trick, (if not starting) turn the key forward 2 clicks till right before it would normally start, leave like that for 10 minutes. ( no less ) After 10 minutes, turn key back then forward and your car might start. I did this in my regal for more than a year. If its shutting down while running, im sorry i have no quick fix... If anything on this page helps you, please remember to comment or give me a thumbs up on the myfixya sight so i can have a better rating to help more people on this. You can also Chat with me now as i have moved up in the myfixya world. Thanks

Cheap fix: Bypass the chip in your key. Temporary, but effective. Until the TDM (theft deterrent module) in the dash poops out, then you're kinda screwed. I was told that these types of key security systems have a 7-10 year life span. Sucks for us. This link explains the "Key Issue" pretty well.
----- http://vats.likeabigdog.com/


Never worry again fix: Bypass the whole VATS/Passlock/passkey I or passkey II system entirely. Literally take it out, and throw it away. I just did this in my Regal. Took about an hour. Took longer to find the thing than it did to fix the problem. They sell a unit for 200 bucks to totally bypass this system FOREVER. life time-money back and all that. Finally did this in my car. Well worth the 200 if you've looked into getting this replaced... Anywhere from 600-1000 bucks. If you do buy this, please purchase it thru this link. The cost is the same, but i get credit for the sale and im trying to earn my money back, as you will be able to do if you buy fron NewRockies and join the free affiliate program. Thanks
----- http://newrockies.ca?ap_id=judd0081
----- With this fix, you can take that whole Vats, passlock, passkey **** system out of your car all together. Good info on both sites.

It works for:
Any GM or Isuzu Vehicle with VATS or PASSKey or PASSLock security systems.
If your car has the chip in the key or in the lock cylinder, then you can save it with this Full Bypass.
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Anonymous

  • 8 Answers
  • Posted on Aug 16, 2008

SOURCE: 91 buick park ave.

Well, that can be a ton of things. Usually it means: A. its not getting enough air, or any air. B. Its not getting enough gas. It could be a problem with the Mass flow Sensor- which can be cleaned or replaced-, or maybe a bad fuel pump or bad fuel lines or something. Either way the problem sounds like it just can't run because it can't get enough gas.

Anonymous

  • 740 Answers
  • Posted on Dec 18, 2008

SOURCE: 1992 Buick Park Avenue - car runs great..when it runs.

The crank sensor is located on the side of crankshaft damper/pulley it mounted on a bracket. However it think that you may have a map-sensor problem that's very common with this vehicle. The crank sensor is not hard to change at all. Good Luck get back in contact if you need more help

txkjun

John Weathers

  • 409 Answers
  • Posted on Dec 25, 2008

SOURCE: 1994 park avenue

Check you Mas Air Flow sensor or MAP sensor.

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1answer

I replased the steering calum on my 98 buick riviera and it started after i got done with know problem drove ot and turned it off and now it wont start. Security light stays on so what do i do to fix it

This is called the 30 minute reset. Turn the ignition switch until the starter just clicks or cranks a bit then leave the switch in the run position the light will be on or flashing at this time, when it stops flashing turn ignition off then repeat up to 2 more times. Some vehicles will have the light flashing for this process and after it turns off repeat process, it usually takes 10 minutes for each cycle. I hope this helps, take care.
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How do I reset security system on my 2000 Bonneville?

press the helpful button and follow me on fixya for more tips

Put the key into ignition and turn it to RUN position. All dash lights will illuminate. Don't try to start the car. Leave the key in the ignition for about 5-10 minutes or until security light will stop flashing. The car should start after that. Security lock on the Pontiac disables the injectors, so the engine should crank. If it does not, you may want to check ignition switch, fuse and relay for the starter. Try to reset security first. Sometimes the magnet in the ignition lock cylinder gets dirty and needs cleaning. written by AlexGS
If the above procedure does not work the first time, try again, but right at the start insert key in and out of ignition several times to get good contact, as your key or ignition could be faulty.

Passlock III reset procedure reset security system on chevy buick...

https://ca.answers.yahoo.com/question/index?qid=20080809211716AAHluay
0helpful
1answer

Random times of no crank

If the security light is flashing, the chip in the key or the sensor in the key lock may be faulty. If the engine computer "sees" the right chip in the key, it allows the engine to start.
If the light is not flashing you would need to check for power at the starter when the engine will not crank. Also try cranking in neutral.
0helpful
1answer

When I turn the key on in my 1999 buick regal it will not start the security light just keeps flashing

The key cylinder sensor may be faulty. if you would like to bypass the system (works only if Passlock security module is ok) follow the link. How To Permanently Disable GM PassLock System
0helpful
1answer

I have a 2002 Buick rendezvous I keep having problems with it locking up to wear my car will not start what could be causing this is it my security system locking up or what please help

Not sure if you mean engine is locking or vehicle will not crank. If the vehicle doesnt crank and the security light is flashing, the problem is most likely a worn out key and lock and tumbler assembly. Once replaced the new key will have to be recognized by the body control module through a reset procedure. Close drivers door. Turn ignition to run position and wait for security light to go out. Turn key off for 2 seconds. Do this 3 times in row. After turning key off 3rd time the key code should be recognized by the body control module and the vehicle should start. Hope this helps.
0helpful
1answer

1992 buick will not start security light flashing

turn key to ON position, do not crank engine, leave key on for 10 - 15 min the light will stop flashing, crank the engine
1helpful
1answer

Car wont turn over

these cars have a antitheft system that will shut down fuel and crank. be sure to check to see if after the car ignition is on for 30 seconds and look to see if there is a security light on in the dash. if so then turn to crank if security light flashes your problem is that the chip in your key is not being transfered to the security module, so starter will not work. you will have to replace the pickup in the cylinder or bypass the security with proper resister
3helpful
3answers

My security light is on and car wont stay started

Try turning the key on and leaving it on for about 30 minutes this should reset the security protection. This happens with my mom's Impala and this is how they told her to fix it. It works for hers both being GM should be similar security system let me know if it works
0helpful
1answer

I have a 1997 Buick LeSabre. Today I was driving for quite a while...took a few trips into town. But when I went to start my car this evening, it seems that the key isn't working and the passive anti-theft...

Ok, I've seen this happen before. The security light illuminates on the dash, but the engine won't crank. Wait about 10 minutes, try again. Wait 10, try again. The security resets itself in approx. that long. More than likely the little rubber chip on your key or the chip reader in the ignition switch is not working. Also try another ignition key, if you have a spare.
Good Luck!
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