Question about 2000 Oldsmobile Alero

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Trac off and antilock lights are on

On my 2000 alero the trac off and antilock brake lights are both on. they were both on before i changed the brakes last and are still on. i noticed it and didnt find a problem with the sensors being unplugged and they werent covered with grime either. my girlfriends brother changed the brakes sometime before me and i guess the lights were on between him and me. the other thing is, is that i cant turn the trac control on either if that helps.

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  • kmenei Oct 03, 2008

    Trac off and antilock ligths are on,here a little grinding front wheel passenger side can you help me.

  • Anonymous Oct 05, 2008

    The trac on light comes frequently for me too. A strange grinding noise usually accompanies it when I touch the brakes. Anyone else have similar issues?

  • caseygirl319 Oct 15, 2008

    I have all these problems!! My trac off comes on , anti-lock , and I actually loose trac for a sec .

  • rockd2003 Jan 23, 2009

    I have the exact occurance as caseygirl319 My trac off and anti-lock light turn on and I actually lost traction for a moment at one time. The lights turn off occasionally and everything works normally for a bit then it happens again at random. And losing my tracking the first time was a little scary because it felt like the brakes went out (I was not sliding as I was just rolling up at a light when the person in front of me turned).

    It started the same day that I got my oil changed at the quick change place. I usually do the simple stuff myself but its cold here in Michigan.

  • Anonymous Mar 20, 2009

    there is some kind of a magnetic field in the brake assembly that causes the grease to accumulate on one side of the bearing and so causes them to have to be replaced every year or so a mechanic tells me

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If ur lights are both comming on u have a bad connection at the wheel my alero had a bad wheel bearing that actually caused so much heat and friction it burnt the connector at the hub assembly behind ur caliper. check the connection there uif it grinds while u drive or break change the wheel bearing all lights and grinding will stop.

Posted on Dec 09, 2008

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Try unpluging your battery cables for 10 to 15 mins.for the comp to reset.itself.

Posted on Sep 19, 2008

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1 Answer

Trac control light on & anti lock lite came on same time stays on


That means there is a problem with the ABS , has DTC'S - diagnostic trouble codes in the EBCM - electronic brake control module . You need to have diagnostics run on it !
Traction Control/ Stabilitrak Off: Refer to ABS Description and Operation in Antilock Brake Systems
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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 trac off abs and service vehicle soon lights are all on mechanic said wheel barrings are fine ,,whats the problem and is it safe to drive 425 mile out of town and back?


Probably just a wheel sensor out. It will be fine to drive that far and back. You wont have tracton control or antilock brakes. Meaning that if you slam on the brakes the tire can lock up and skid. When the abs is out it reverts to the old braking system that they used in all vehicles for decades.

Jul 02, 2011 | 2002 Oldsmobile Alero

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My trac light says trac off, and my abs light is on. what does that mean? I have a 1999 grand am Pontiac.


the trac light is the traction control, the abs light means the antilock brake system is not functioning properly. the trac control is no issue. the abs will not cause the brakes to fail but they will lock instead of pulsing.

Mar 31, 2011 | Pontiac Grand Am Cars & Trucks

1 Answer

Why would my antilock & traction off light keep coming on and what should I do?


THE ABS AND TRAC LIGHT COMES ON MEANS YOU HAVE A PROBLEM. THE GARAGE OR DEALERSHIP HAS TO DO A DIAGNOSTIC SCAN ON ABS BRAKE AND ANTI LOCK SYSTEM TO SEE WHAT TROUBLE CODES COMING UP AND FIX THE PROBLEM.

Jan 19, 2011 | 1999 Oldsmobile Alero

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Trac light off appears when you start the car


Is the antilock brake light (abs) on as well or come on shortly after driving a few feet or immediately?

Nov 29, 2010 | 2002 Oldsmobile Alero

1 Answer

Why would my service engine light, trac off light, and anti lock break lights go on at different times when I drive?


well for one the traction and antilock lights are the same sensor. If the anitlock brake sensor goes bad and cannot count your wheel rotations then your traction control system will not work either. AS for the service engine soon light that could be part of this system also or it could be totally different you wont know until you get your code read

Apr 23, 2010 | 2004 Oldsmobile Alero

1 Answer

I heard a loud pop or something then my dash said trac off and my engine light came on. Now my car is shaking really bad with a loud noise and a faint smell of gas.


On applications with traction control, there is a switch to deactivate the system, which is normally enabled any time the ignition is turned on. TRAC ON and TRAC OFF lamps inform the driver of system status. The controller may deactivate the traction control system temporarily after it has been engaged for a certain period of time to prevent heat buildup in the brake linings and possible brake fade. ABS braking is not affected by the status of the traction control function. In your case it is the Anti Lock Brake system. You have to take it to a shop and have the antilock brake system checked with some special tools.

Jan 01, 2010 | 2000 Pontiac Sunfire

1 Answer

Antilock light is on and trac light is on sound


You have a bad hub bearing. 100% garunteed. The light is on because the bearing is so bad it hit the sensor for the abs & traction control , breaking it. So you're gonna need a bearing, a sensor,probably new brake pads,any seals{probably one} & a shop that can do it. The bearing is pressed in & needs to be pressed out. Heating & beating is not a good idea.

Jun 20, 2009 | 2003 Oldsmobile Alero

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