Question about 2001 Buick Century

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I have a 2002 buick century and just had three lights come on....trac off...check engine...and anti-lock. any ideas

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  • bdog101488 Sep 07, 2008

    2002 Buick Century...noticed last night that the fuel gauge was acting up, all the way to fuul (when it was not), back down, did this for about 20 minutes into the drive then settlesed about where it should have been. Today, came out from shopping, started right up, but my anti lock, trac off and service vehicle soon (not check engine light) came on, stayed on. Started it 4 hours later and no lights. Car is driving great. Just had the cat. converter replaced about 100 miles ago. All related???

  • leslieann770 Dec 10, 2008

    Car seems to run ok, but service vehicle soon, antilock, and trac off lights all came on at the same

  • graymk Dec 17, 2008

    I have the exact same problem as defined in the post with the 3 lights on. I checked for any codes that might be set, and no codes came up on the code reader.

  • Really123 Feb 07, 2009

    2001 Buick Century. Same problem. Service Vehicle soon + abs + trac lights came on 3 weeks ago. Went off next day. Came on again today. Any ideas at all?

  • Anonymous Feb 24, 2009

    Hey Same thing. Service Engine Soon, AntiLock and Trac off lights all came on at the same time. Winter snowy driving

  • Anonymous Mar 28, 2014


  • Anonymous Mar 29, 2014

    engine nlocked up


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One of the things you will want to check is your speed sensors, some times they will also cause your ABS light to come on, and they relate to your Transmission electronics that is why the Check Engine light comes on.

Posted on Aug 28, 2008

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I just read a thread where the rear wheel sensors wiring harness is known to chafe where it passes through the trunk (just forward of the spare wheel well). It just happens that the fuel gauge sending unit goes through at the same place. If they're both chafed, that could explain why you're seeing both seemingly unrelated issues.

Posted on Aug 03, 2012

Power windows want let down

Posted on Sep 08, 2008

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My problem is the same as most others. Anti-lock brakes, service engine soon, trac off lights on. Before they would come on intermittemtly bu recently stays on. Called GM last week and was told to take it...

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2002 buick abs, trac off lights come on


Jul 29, 2009 | 2002 Buick Century

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Are you sure of the lights? If it is Service VEHICLE Soon, in addition to Trac Off and Anti Lock, it is most likely one of the four wheel hub assemblies. These are sealed bearing units that feed a signal to the computer for the ABS brakes and the tire pressure system. I had one go out intermittently (seemed to be aggrivated by humidity/moisture). I had it replaced, and another one is going out. It seems like they are a bit prone to failure. My Century has 101K, and I experienced the first one around 75K miles. Unfortunately, to tell which one is failing requires a scan tool above and beyond the simple one that most parts stores use. BTW, there was a problem that was fixed just prior to 2002 that was caused by the signal wires going to the left front wheel hub being worn through and shorting. I believe this problem was fixed by 2002.

Sep 25, 2008 | 2002 Buick Century

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2002 Buick Century anti-lock brake problems

i recently had this problem too, except i had all the lights on (ABS, service vehicle, trac-off, AND service engine) they are all easy to fix without spending more than 20-30$ for labour (depending how much your mechanic charges you) mine did it for free and he found out why the engine light is on afterwards too. so to fix all these lights (abs, trac-off, and service vehicle you MUST get another ABS cable (i went to a garage, they were towing a GM vehicle to the junk yard so i grabbed some scissors and cut BOTH abs cables on each side (good thing i did because one was bad) and braught them to my mechanic. the reason the lights come on is probably a defect or in my case my mechanic said it was salt buildup in the wires (on the drivers side) so he cut the wire off and rewired the new one and BOOM all the lights came off (service vehicle, abs, and trac-off) now for my service engine it says catalytic converter but im trying to put some fuel system cleaner to help it out i read somewhere that this is a defect of the car, so if you dont have that light yet, SELL your car ASAP for as much as you can get for it (after fixing the lights of course) and always google (car name+recalls) in the search bar to see what youre getting into, take care

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