Question about GMC Acadia

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I Have a 2007 GMC Acadia that has an intermittent Stabilitrak warning. It only illuminates the trouble light when slowing or going downhill...going uphill or level is OK

All fluid levels seem to be full...Power Steering, Transmission, Brake Fluid, and Xfer case. This seems to be a fluid level issue or a inertial sensor since it seems sensitive to the orientation of the car, which also coincides with the inertia...going downhill or braking provides the same sensation, as does going uphill or accelerating. On level driving it is usually OK, although in western Pa there isn't too much level roadway. I'd rather see if I can find a fix online than pay $1000 for a dealer's easy fix. Any ideas? In addition, the check engine light comes on but has been doing this for years. The engine codes usually indicate an O2 sensor, nothing about the stabilitrak or traction control (which also shows up in the trouble message).

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  • Mariano Loustalot
    Mariano Loustalot Sep 24, 2017

    Hi James, did you find what was wrong? I have the exact same issue with a 2010 Acadia. Thanks.

  • James Markitell
    James Markitell Oct 22, 2017

    Haven't found the problem yet. I also have very rough downshifting and high idle speeds. I tried the disconnected battery trick, but that didn't fix the problem(but it DID fix some other oddball problems. Please let me know if you have found any answers, please.



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Could be rusted and broken because have others codes you should check for new codes.

Posted on Apr 19, 2017


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