2024 Silverado Trailer Lights Not Working. I ran across this document on another forum and figured i should share it. 2024 silverado & trailer brake issue.
Just bought a 2020 gmc 2500hd at4, and am having an issue with trailer lights not working. 9 posts · joined 2012.
So I Did Some Research On Various Forums And Came Across Some Info Saying Gm Knows There Is A Problem With The Trailer Brakes Disconnecting And It Has Something.
Troubleshooting no trailer left turn/stop or running lights with 2012 chevy silverado;
Causes And How To Fix.
75k views 32 replies 17 participants last post by tsuintx mar 1, 2024.
9.3K Views 1 Year Ago.
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Just Bought A 2020 Gmc 2500Hd At4, And Am Having An Issue With Trailer Lights Not Working.
I get a trailer lights disconnected on the digital gauge cluster every 45ish seconds while driving but everything is still connected and when i do a test, it is all good.
Make Sure The Wiring Harness Is Securely Connected And Not Damaged.
Module has to be changed along with jumper wires installed in the harness according to the bulletin, if lights do stop working.