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Troubleshooting, Warranty & Recalls

The repair shop. Diagnose emissions codes, electrical issues, Allison transmission behavior, and recall updates.

918 topics in this forum

  1. Trailer TPMS Issues

    By Scott Surges,
    • 9 replies
    • 1.8k views

  2. Windshield Replacement

    By marpel,
    • 5 replies
    • 1k views

  3. Bluetooth crackling/static after Y172 update 1 2 3

    By BuckWallace,
    • 40 replies
    • 13k views

  4. auxillary (block) heater plug in

    By Lke,
    • 5 replies
    • 1.2k views

  5. Anyone know how to replace the triangle shaped front window apliques?

    By Meyre1,
    • 1 reply
    • 821 views

  6. GM Buy Back

    By DBaker,
    • 5 replies
    • 1.3k views

  7. Belt squeal (?) on cold start up on 2024 Chevy 2500HD 6.6L Gasser 1 2 3 4

    By gastrohman,
    • 51 replies
    • 15.9k views

  8. 5th wheel chucking 1 2 3

    By Meade2024,
    • 31 replies
    • 5.5k views

  9. TRAILERING APP WON'T TURN ON

    By BnDRoadTrip,
    • 1 reply
    • 957 views

  10. Exhaust Brake concerns

    By DBaker,
    • 4 replies
    • 2.1k views

  11. AC Drain

    By RickSt,
    • 5 replies
    • 20k views

  12. Fuel pump priming when doors open?

    By LSX Z28,
    • 13 replies
    • 12.7k views

  13. Chime wont stop - how to disable??

    By In2racn,
    • 8 replies
    • 44.6k views

  14. Infotainment Audio Issues 1 2 3

    By kf9yr,
    • 30 replies
    • 29.8k views

  15. 2020 GMC3500 AT4 needing to replace DPF at 85K miles

    By Hog Hunter,
    • 2 replies
    • 888 views

  16. Rear Brakes Sticking

    By Brandon Darnell,
    • 6 replies
    • 1.8k views

  17. Invisible Trailer Camera: Worked on '20, Blank Screen on '24 1 2

    By Shawn T,
    • 26 replies
    • 25.3k views

  18. 2022 High Country HD retractable running board issues 1 2 3 4 5

    By mtbadbob,
    • 66 replies
    • 37.6k views

  19. In depth dive into the Allison 10spd valve body issue.

    By No F-bdy Bs,
    • 2 replies
    • 1.1k views

  20. Paint issues ? Chips and flakes

    By Ben Jardine,
    • 10 replies
    • 9.7k views

  21. Upper Steering Shaft replacement - 2020 HD

    By jeez,
    • 12 replies
    • 18.6k views

  22. Clicking/rattle noise under/behind steering column 2022 Silverado 2500HD

    By BasikLiberty,
    • 4 replies
    • 1.2k views

  23. Feeling Vibration and Jiggles in 2024 HD Gasser Steering Wheel 1 2

    By Texas Gasser,
    • 23 replies
    • 16.8k views

  24. Oil consumption issue in 2024 gas chevy 2500 1 2

    By GavinL6.6,
    • 19 replies
    • 5.7k views

  25. Night time Running lights/ parking lights don’t work 1 2

    By Duramax85,
    • 20 replies
    • 31.1k views
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