Question about 1999 Buick Century

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My "trac off" light came on and my anti-lock light and "service soon" light.

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You will need to have the computer scanned for codes, the codes will tell you where the problem is, when the abs light is on it will turn on the other lights the ser light and trac light, once the abs if repaired the other lights will clear, the most common problem with these is one of the wheel speed sensors go bad, hope this helps.

Posted on Sep 01, 2010

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Posted on Jan 02, 2017

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SOURCE: anti lock light and so on , is on

please don't GUE$$ this problem speed sensor is part of your speedometer!! not the ABS sensor located at cv joint sensor ring! the sensor is bolted or pressed on to you brake anchor ///hub but it could be your ABS pump?? it could be 1 of 4 of your ABS sensor switches it could even be the sensor RING on CV joint? so to GUE$$ would cost $100.00 up word to a $1000.00 so again take in get it properly scanned to retreve the sensor or other part at fault! usually the fee is waved if you do the repair at that destination! or reduce 1/2 price depending on how well of a relationship you have with your tech our shop usually waves it if you go ahead and get the work required completed! QUESTION is it dangers absolutely! your safety as well as inasint others well it is your choice I hope the free support I gave you helped you out some way shape or form.John

Posted on Jan 11, 2009

  • 1 Answer

SOURCE: lights on for service engine

There should be a switch near the gear shifter where you can turn the traction on or off

Posted on Jan 03, 2009

  • 1 Answer

SOURCE: anti lock light and so on , is on

I got this car from my inlaws, and this same thing had been going on when they gave me the car. It ran fine, but the lights would come on withing a few miles of driving the car. Service Vehicle Soon, ABS, and Trac Off were the lights that were coming on. I drove it this way for awhile, then when I had it in for routine maintenance I was told I need the front wheel bearings replaced. I found a friend who replaced them for me, and lo and behold when I got the car back the lights were gone and haven't been back on since. I don't know a lot about cars so there certainly could be other problems that would cause these same symptoms, but it worked for me ;)

Posted on Apr 28, 2009

  • 41 Answers

SOURCE: I have an 2001 oldsmobile

may have more than 1 problem scan system check engine light will turn on trac light possible wheel speed sensor harness if wheel bearing not noisy or loose only replace harness

Posted on Nov 27, 2009

  • 137 Answers

SOURCE: 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

Posted on Jan 26, 2010

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