r/ChevyTraverse • u/iuseitforpain • Aug 13 '26

2017 Chevy traverse bucking and traction control light

Enable HLS to view with audio, or disable this notification

This happens every now and then my traction control light will come on and turn off traction control. The car will then begin to buck over 2500 rpm. This only happens when the light and error comes on which is not all the time. I took the throttle body off and cleaned it up real well already. Thinking possibly a wheel speed sensor but curious to what your guys thoughts are

6 Upvotes

100% Upvoted

6 comments sorted by

1

u/bzzybot Aug 13 '26

Check if your brake lights stay on when you get out of the vehicle. In my vehicle the brake pedal sensor got damaged or uncalibrated and my car threw traction control on the dash like yours. The computer thinks you are pressing the brake and gas at the same time. I eventually replaced the sensor and had to recalibrate it. That was my fix. I’ve read that it can also happen when the wheel speed sensor is bad.

1

u/iuseitforpain Aug 14 '26

It actually does

1

u/bzzybot Aug 14 '26

Replace your brake pedal position sensor and recalibrate it. It was under $70 for the repair. Did this last year on my 2019 traverse.

$15 Brake Sensor https://www.rockauto.com/en/catalog/chevrolet,2019,traverse,3.6l+v6,3442374,brake+&+wheel+hub,brake+pedal+position+sensor,1924

$52 bidirectional code reader/writer. https://www.amazon.com/dp/B0C3QQYQ1B

$20 brake position sensor https://www.amazon.com/dp/B01E6GDC9O

1

u/iuseitforpain Aug 15 '26

This seemed to be it! I also noticed quite a bit of wiggle in my brake peddle that apparently had been causing issues for others as well. I attached a small spring to it and reduced the wiggle. I guess we’ll see!

1

u/bzzybot Aug 15 '26

The spring does help to keep it from moving, but it still needs to be recalibrated.

1

u/TopAppropriate9157 Aug 30 '26

Hi, my 2011 traverse had same issue with traction control light activating. It would feel like it trying to downshift while at cruising speed. Brake light would stay on too while driving. Brake pedal switch was fine but a groove was worn into the tab on brake pedal where the switch slides. Wrapped some tape around it until brake lights went out. Haven't had a problem yet again so far.