Question about 2002 Buick Century

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Trac off, service vehincle soon, and anti lock comes on all at once AND stays on

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: I have a 2002 buick

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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shop242
  • 214 Answers

SOURCE: 2000 century anti lock light came on with service

Its most likely a bad front wheel bearing hub assy.. Get a scan on it and see if it comes back as a speed sensor on either the LF or RF... If so.. Its a bearing

Posted on Mar 11, 2009

Monster80
  • 460 Answers

SOURCE: traction system

Hi there.Whats happening here is an abs sensor in the wheel has failed.In doing so it will turn off your traction control because your abs breaks and traction control work together .If maybe you have an auto zone near by they can scan your break system to find what abs sensor is causing the problem.I hope this clarified some for ya..Auto zone will scan the car for free so that won't cost you anything.You can drive the car you just wont have abs and you should get it fixed.Again I hoped I helped you and if you need further assistance I'll be here to help you..Have a great day..

Posted on Mar 31, 2009

  • 11 Answers

SOURCE: 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

Posted on Jun 15, 2009

  • 615 Answers

SOURCE: anti lock and trac off lights on in a 2003 buick

Probably pointing to one or more of your wheel speed sensors having problems. Have the ABS codes scanned on the vehicle. This should help give direction on where to look next. Also, check tire pressure, as uneven pressure can cause this condition.

Posted on Oct 23, 2009

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2 Answers

Service engine soon, trac off anti-lock brake light on


if your car has an automatic trassmision , the problem is the clutcht not the ABS

Jan 15, 2013 | 2001 Oldsmobile Alero

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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...


Your anti lock brake light is part of your traction contol lights so that is most likely a wheel sensor and would be a separate problem from your check engine light.
Do you have an auto parts store near by? They can check these codes for free if so

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My service engine soon light, anti-lock break light, and my trac off light are on. My car also makes a kind of grinding noise sometimes. I was told that the sensor was set off by spinning tires. It is...


2 different problems
check engine light = need to have scanned
2 anti-lock and trac light are linked and could be related. yes spining tire can cause trac light to come on

May 27, 2011 | 2002 Buick Regal

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Service vehical soon anti lock and trac off comes


The computer system reset every time you turn key off. The system then does a 3 second bulb check to verify all is functioning correctly. If all is well stays off. The reason why it only turns on when moving is because the abs sensors are either not picking up any vehicle speed from one of the wheels or there is a faulty connection in wiring at one of the wheels. Need to have vehicle scanned by a good shop and verify which wheel is causing the problem. If light is on ABS and traction control systems are disabled.

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Service Vehicle, Trac Off, & ABS lights 2001 Buick Century.


I just put in new fron pads in my 2000 buick century and the track off and the anti lock brake light and the service engine soon stays on

Jun 16, 2010 | 2001 Buick Century

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What is the most common cause for the Anti lock, Trac off, and service vehicle soon indicators to stay on. Vehicle sat for a few months...


Broken wire from speed sensor to harness.
Had this happen on my 02 Buick Century and my 2000 Olds Intrigue

Mar 18, 2010 | 2000 Oldsmobile Alero

1 Answer

Service vehicle soon, anti-lock, trac off all on


You need a new wheel bearing, This also happened to my olds alero, make sure 2 jack up each tire 1 at a time and pull back and forth on them checking for play, once you have found the 1 that has play or wobbles that is the 1 that needs a new wheel bearing

Jan 26, 2010 | 1998 Oldsmobile Intrigue

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Anti-lock light comes on and stays on


Please go for a scan as it will reveal codes that correspond with whatever problems the car has.

Jul 01, 2009 | 2000 Oldsmobile Alero

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Lights comes on and stays


These codes are most likely all related. A problem in the ABS syetm will also dissable the other systems you have light on for. You would need to get the computer "scanned for codes" to determine where the fault is. As the other post says, most likely a front wheel speed sensor.

May 07, 2009 | 2003 Oldsmobile Alero

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Anti-lock, traction control, service soon,brake, and security lights on. anti-lock and traction control disabled. Replaces front hubs many times. coulkd it be body conroll module? 2001 olds alero


Anti-Lock and Trac Off lights are lit on my 1999 Alero, as well. They usually come on after about 5 minutes of driving, but are not always on when I start the car.

Aug 18, 2008 | 2003 Oldsmobile Alero

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