Ground Strap

[BigBen71]

Hey All,

I bought my 2020 Trail Boss LT 5.3L on Jan 15th and had issues with the ground strap. It deteriorated and this cooked the ECM and transfer case module. Anyone else have issues with the ground straps on their trucks? Feedback appreciated.

 

[GETGONE]

There's a GM service bulletin that was recently released about it being replaced for free. Not sure what they'll do about the fried stuff due to it though.

https://gmauthority.com/blog/2026/02/some-chevy-silverado-1500-units-need-a-new-body-to-chassis-ground-strap/