Question about 2000 Buick Century

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2000 Buick Century Custom: security light is on, car wont start. Tried the key reset; turning on for ten minutes, key was on for almost 20 minutes and the security light never went of

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  • Contributor
  • 46 Answers

Does the key have a chip on it?

Posted on Oct 23, 2013

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Posted on Jan 02, 2017

  • 99 Answers

SOURCE: Car wont start-security light on-passkey issue?

if the security light is on it could be the ign lock cylinder, it has two small wires attached to it and one may be broken and are the keys the ones that came with the vehicle

Posted on Nov 30, 2008

  • 1 Answer

SOURCE: I have a 2000 Buick

A coworker of mine said he had the same problem with a GM product the same year. I tried it and it worked, so simple. All you have to do is pull the headlight switch on and then start the car, let it run for a few minutes and now it works normal.

Posted on Dec 14, 2008

  • 2 Answers

SOURCE: security light staying on on my 99 buick century custom

yes key pass (special meatal resistor) on key to ign. tumbler is going bad and will eventually leave you stranded ignition tumber and rekey will be nessesary

Posted on Feb 26, 2009

  • 3 Answers

SOURCE: 2003 Buick Century Custom and the Service Engine Soon Light

You will need to have a reputable mechanic do a diagnostic check on the car to determine the problem. This should pull up a code number in your car's computer and help point the mechanic and you in the direction of the malfunctioning part/s.

Just today, I had a diagnostic check done on mine for nearly $45.00. The mechanic was able to figure out the reason why my service engine light was staying on. I knew my car's radiator fans failed to run when car's engine was hot except when the A/C was running. I had changed out the sensors and was never able to get the light to go out or get the fans working. They were able to determine that the 25 amp fuse for the fans located under the hood was blown. After replacing it, the fans worked as they should, my car runs cooler and the engine service engine light is now out. Of course there are many possible reasons why the service engine light may come on including problems with the car's emissions. A reputable mechanic can solve your problem.

Posted on Apr 09, 2009

hfmiles
  • 1165 Answers

SOURCE: 2000 Buick Century wont start, new ignition

Make sure all the fuses are good. Check the fuse panel inside the car and the fuse box under the hood. Find the starter relay and swap it with another one and see if the starter works. If that didn't make any difference, try this:Make sure the transmission is in park, emergency brake on. Turn the ignition key on. Find where the positive battery cable is attached to the starter. Attach one end of a jumper cable to the connection. Take the other end of the jumper cable and ground it against the starter solenoid where the wires are connected. This should start the car, or at least make the starter work.If the car starts but won't stay running, then it is probably the security system at fault. If you went to a dealership for the new switch and keys, you probably paid quite a bit for it.There is a cheaper way to fix it, and it will last forever. It's a bypass system from a company called New Rockies. I think you should check out this website: http://newrockies.ca/vatsbypass.

Posted on Jan 02, 2011

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1 Answer

I have a buick century 2000 3.1 what causes car to start and shut down as if the fuel starts and stops


Security. Reset is turn the key on for ten minutes, off for thirty seconds. Try to start. Relearn is three times this. Try to start after the third. No start s usually wiring to the ignition chip. Wires break.

Jan 04, 2017 | Buick Century Cars & Trucks

1 Answer

My 2001 Buick lesabre custom shut down and won't turn over the battery is charged and related fuses are correct .how do I find out if the factory security feature is the problem ?


When you turn the key to on position, does the security light go out after a couple seconds? If so, it is not security. If it stays on, do a reset. Turn it on for ten minutes, off for thirty seconds. It resets the security. A relearn is three times this, start after the third time. Have a charger on the battery. If the battery gets to low on voltage, you have to start all over.

Aug 30, 2015 | Buick Cars & Trucks

1 Answer

2004 buick century,security light stays on, no problems with starting/driving, how can I reset turn off? tried the 10 min/turn key to on poss,didnt work


The security light is probably on because of the key tumbler sensor where the ignition switch is at is bad or corroded. The security light on while your able to start it means the anti theft system is disabled and it will start every time. If you want you can replace the sensor on the tumbler for under $100 on your own or run to a junk yard to grab a replacement sensor.

Jan 26, 2015 | 2004 Buick Century

2 Answers

What do I do If I've lost the key to my 2000 Buick Lesabre and the key contained a computer chip?


you can get a new key from a dealer and program it yourself by leaving the key on for ten minutes and the security light turns of then you turn the key to off for ten seconds and turn it back on and the security light will come back on for ten more minutes you do the turn it on and wait process 3 times and the light will go out the 3rd time and you can turn the key off for 30 seconds and it should start after that. some times they will work after the first ten minutes.

Dec 15, 2010 | 2000 Buick LeSabre

1 Answer

My security light is on and my car dies right after it starts tried relearn code and it id not work


to reset passlock system, Turn the engine two seconds then leave the key in the run position for exactly ten minutes...the anti-theft security light should go from blinking to solid at the ten minute mark. Immediatly run the engine and the Passlock is reset. Good Luck!!

Jul 13, 2010 | 2000 Saturn SL

1 Answer

Security light on car wont start


try a reset and let me know.

PASSKEY LOCKOUT RESET ALL GM CARS 1999 AND UP
1) Put the key in the ignition and turn to the "ON" position. Leave it that way for 10 minutes. After 10 minutes turn the key and take it out. Repeat this process (2) more times (3 times, 30 minutes total) This should reset the PASSKEY system to recognize your key.

Mar 03, 2010 | 2004 Buick Century

1 Answer

I need to program replacement ignition keys for my 2001 buick lesabre custom


after job is done turn key on for ten minutes until security light stops flashing turn key off then start the car

Feb 22, 2009 | 2000 Buick Century

1 Answer

1998 Buick Park Ave wont start


Roll down the drivers side window. Close the door. Turn the key to the On position but not cranking. Let it sit there for ten minutes with the key on. After ten minutes turn the key off and then try to start the car. I hope this helps.

Dec 28, 2008 | 1998 Buick Park Avenue

2 Answers

Car wont start-security light on-passkey issue?


if the security light is on it could be the ign lock cylinder, it has two small wires attached to it and one may be broken and are the keys the ones that came with the vehicle

Nov 18, 2008 | 2000 Buick Century

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