Question about 2004 Chevrolet Cavalier

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2004 Cavalier, Service light, ABS light, Trac Off light

My Service light, ABS light, Trac Off light stay on and makes eng run ruff (not always) Ran test, said left front ABS sensor bad. Replaced it and a few weeks later lights still on? Replaced breaks all around to include drums and rotors and both front calipers. Disconnected batt. for 10 min. nothing the lights are still on? Car is at it's 100,000 mile mark, would that have something to do with it? Does it need to go to dealer to turn off???

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  • jbrasier10 Aug 08, 2008

    I have the same problem with those same lights. But they only come on like once a week but its occurring more often. It goes away if I shut the car off and then turn it on again. Is this a defect on 2004 Cavaliers?

  • Anonymous Aug 18, 2008

    to the far right of the gauges, there is a light which is constantly on. I cannot make out the picture on it. It is right above the abs light. The picture looks like a small engine. Its in the same area where the safety belts are not properly secured. What can I do or what's seems to be the problem?

  • missy411 Dec 30, 2008

    My service light, ABS light and TRAC OFF lights are on and I dont know why. In the last week they would some on, but later in the day be off...now they are permanently on all the time. I havent noticed anything really wrong with my car, could the wiring be bad? I had a radio installed and the store that did it really messed it up. That was a while ago, but could that still be the problem?

  • heartmom Feb 21, 2009

    The Service light, ABS light, and Trac Off light are all on on my 2004 Cavalier. They came on about a week ago.. at first they would come & go, but now they are staying on all the time. They do not come on right away, but the minute I put the car in reverse or drive these lights come on. I'm wondering is this a defect w/this year Cavalier as well?

  • Pulpo34 Mar 13, 2009

    I have the same problem with the same lights. Midas has done tons of checks on them and they say IT MIGHT be the wheel sensor but they are probably wrong. I've had this problem for over a year now and sometimes they are there everytime and sometimes i dont see them for months. It has not affected the driving of the car. I've taken over 8 road trips including a couple over 1000 miles at a time with those lights on and I have no problem. I am so confused and i have accepted those lights beeing on as part of the car. If they are not on I miss them :)

  • Mike Jun 10, 2013

    yes, I also have the same problem. Light comes on when I "back up" into the driveway, but not when I'm going forward. So I park in the street and go forward now. Don't have the money to fix it.

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It is the wheel speed sensor jumper harness more than likely on the driver side. They replaced the orginal with a newer better one but never issued a recall.

Posted on Apr 07, 2010

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Tech service bulletin says front wheel speed sensor jumper harness may cause a poor connection. Particularly left side.

Posted on May 18, 2009

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It is the speed senser

Posted on Feb 02, 2009

If you have an after market sterio with out the speical wiring harnass made for gm. it will cause those lights to stay on all the time even though there is no problem with anything. i have the same problem but the car runs great

Posted on Jul 24, 2008

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1 Answer

How do I turn off my service, abs, and trac off lights off and why would they be on? I have a 2004 Chevy Cavalier with the 2.2 Ecotec engine


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May 31, 2009 | 2004 Chevrolet Cavalier

1 Answer

2004 Cavalier, Service light, ABS light, Trac Off light


Are you using a gel based battery?
Sounds like an overload on the charging system screwing the whole electronics of the car.
If not - get it diagnosed at a dealership.
Sorry.

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"...should not have to have to deal with these issues"

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Sorry I can't provide any better solution...

Aug 26, 2008 | 2004 Pontiac Grand Am

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Low trac light


I had the exact same problem with my 2004 Cavlier. I took it in and the dealer said it was a voltage problem with my speed regulator located in one of my wheel bases. I had it replaced under my extended warenty. I suguesst taking you car to a mechnanic as soon as possible, cause it could be that sensor, or an electrical issue all together. Especially if it is that sensor, since it effects your braking system, traction system, and the overall drivability of the car. 

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