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Driving on Freeway today & noticed Stabilitrak & Traction Control lights came on. I pulled over turned off engine then started truck. No Stabilitrak & Traction Control Lights. If I toggle the switch it goes off & on. Like normal. No power loss or rough transmission feel.
What to do. I will be monitoring situation. But hoping it doesn't resume. Any thoughts experience etc. Joe
 

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There have been a few others who had the same issue. According to them they all found wire harness chafing in different areas. Do a google search for it and maybe you can find the issue. good Luck
 

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I had this happen to me at about 23k, now 34k. It wen off after I restarted a bit later as I was on dry road just cruising at 65 mph. It came on again about a week later so I took it to a GMC store.

They said this can happen in conjunction with an unrelated issue. In my case the stored code indicated a misfire on cylinders 2&3, so the those injectors were replaced under warranty.

I just a week ago had the same Stabilitrak light in a road trip, but when I took it to a different dealer (I am a full-time RVer and move every so often), they couldn't pull up any code.

All the above comments are from two different dealers, not me, and I never felt or experienced any engine/transmission irregularities/abnormalities.

Go figure!!
 
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If engine light is on cruise will be disabled.
No way of telling what's wrong until it can be scanned for trouble codes to see what system is acting up.
 
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