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Chevy Tahoe Stabilitrak Problems



  • thecardoc3thecardoc3 Posts: 2,254
    edited August 2
    There are many different issues that can cause the stabilitrak system to be disabled. Virtually anything that can impact the PCM's ability to control engine power and torque to the wheels, as well as problems with the antilock brake control system, airbag system (yaw sensor) steering system (steering angle sensor), and the four wheel drive component issues can all result in the engineers having the software shut the stabilitrak system down. It all follows very clear logic to those who have made the investment in study time to be ready to troubleshoot the robotics in the car at that level. As part of understanding how it works it's a good exercise to examine it from the perspective that the stability control system on most cars doesn't exist as a stand alone item. It is software that is running in the background of a handful of vehicle systems working in concert with each other that creates the ability to have that system.

    Seems like auto mechanics lost in the court of public opinion decades ago.

    Yea, but blaming all of the techs of today for the sins of some others only serves to perpetuate the problems at a time when that's the last thing the consumer ultimately needs. When consumers and yes even shops can't find techs that can handle relatively simple systems like stabilitrak, they are reaping what they have been sewing.
  • steverstever Viva Las CrucesPosts: 44,461
    Even more logical would be to have the PCM tell the owner (and the tech) just what module went flooey. Couldn't OnStar email or text that info to the owner?

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  • thecardoc3thecardoc3 Posts: 2,254
    If it could, then it would be doing it.
  • Mr_ShiftrightMr_Shiftright CaliforniaPosts: 47,369
    It's feasible but I don't think it's possible to do that right now while the car is "on the run". Perhaps a car could be designed to be parked and put into some kind of powered-up diagnostic mode and the PCM could do a series of pass/fails.

    Doc has a point. I mean, let's say in my part of the world (an area that can post $145/hr shop rates) that it takes the tech 4 hours to track down and remedy the Stabiltrak problem and by golly, it was a loose connector that got corroded.

    So the bill is $580 + $7 for parts. The consumer is not going to like that bill.

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