Troubleshooting, Warranty & Recalls

911 topics in this forum

1. Front camera replacement?

   By Nick Taylor, January 21, 2024
   • 3 replies
   • 9.9k views
   • 
   • Niklasbraun
   • January 25, 2024

2. 2023 duramax 2500 shift flare

   By Deadstockpomp, March 22, 2025
   • 3 replies
   • 1.1k views
   • 
   • Deadstockpomp
   • April 18, 2025

3. 2021 GMC 6.6 whooshing noise

   By HeavyEquipment90, January 21, 2024
   • 3 replies
   • 1.2k views
   • 
   • newdude
   • May 28, 2024

4. Cameras Not Working on 2020 2500 AT4

   By nuthin_fun, June 14, 2020
   • 3 replies
   • 13.9k views
   • 
   • Chip Fraser
   • January 14, 2021

5. 2020 2500 gas

   By Brandon05, August 30, 2020
   • 3 replies
   • 1.4k views
   • 
   • CRApex
   • August 30, 2020

6. New 2020 2500HD, Lost Brakes/Steering

   By fly53usmc, October 24, 2020
   • 3 replies
   • 1.6k views
   • 
   • kylant
   • October 25, 2020

7. 20x10 -18 offset wheels on 35x12.50R20s

   By zurqq, December 5, 2020
   • 3 replies
   • 5.9k views
   • 
   • CT Chevy Connoisseur
   • December 12, 2020

8. Right side running lights blowing fuse

   By Russell Hackler jr, January 22, 2022
   • 3 replies
   • 15.2k views
   • 
   • Russell Hackler jr
   • January 26, 2022

9. Pro Trailering App Pi$$ing Me Off

   By Tomato, July 8, 2020
   • 3 replies
   • 1.3k views
   • 
   • cNate
   • July 9, 2020

10. Multi Pro Tailgate Plug

    By hkyfsh, April 30, 2021
    • 3 replies
    • 3.4k views
    • 
    • Wldfyr
    • February 27, 2023

11. 2021 6.6 Gas Temp Gage always pegged at 220 normal?

    By ILSilverado, August 21, 2021
    • 3 replies
    • 1.3k views
    • 
    • mrjulian416
    • August 25, 2021

12. Steering Wheel Rubbing Plastic Cowling

    By lmar68, December 7, 2023
    • 3 replies
    • 3.3k views
    • 
    • luisadz80
    • October 17, 2024

13. Rear view camera pixel issue

    By GMC-Trucks-are-best, October 23, 2022
    • 3 replies
    • 3.1k views
    • 
    • eddieCanada
    • July 24, 2024

14. Left Rear Turn Signal Failure ‘21 Duramax

    By BAveryP, October 3, 2022
    • 3 replies
    • 2.5k views
    • 
    • RedLT
    • October 11, 2022

15. Deceleration knock - 2020 Sierra Duramax

    By iflypigs, January 20, 2021
    • 3 replies
    • 11.4k views
    • 
    • rmsmis
    • January 26, 2021

16. Power Folding Trailering Mirrors Malfunction

    By Mr. Jim, January 31, 2021
    • 3 replies
    • 8.9k views
    • 
    • Truston Gunter
    • March 1, 2022

17. Cracked tailgate touch pad replacement?

    By Alfa Georgia, February 21
    • 3 replies
    • 527 views
    • 
    • Alfa Georgia
    • June 2

18. 2024 HD series No power to 7 pin or in-bed 4 Pin

    By davidm767, October 19, 2023
    • 3 replies
    • 10.7k views
    • 
    • davidm767
    • October 20, 2023

19. 2020 3500HD - dead fuel pump module

    By greatmizzou, December 30, 2025
    • 3 replies
    • 697 views
    • 
    • greatmizzou
    • April 26

20. Catalytic converter check engine light?

    By cr2256, September 9, 2020
    • 3 replies
    • 3.9k views
    • 
    • cr2256
    • September 14, 2020

21. Seat warmers stopped.

    By Irish80, January 1, 2020
    • 3 replies
    • 786 views
    • 
    • IdoMRI
    • January 6, 2020

22. 2020 GMC Sierra infotainment problem

    By Eddieluc23, March 8, 2024
    • 3 replies
    • 952 views
    • 
    • Eddieluc23
    • March 19, 2024

23. Upfitter Switches

    By Dan Forsythe, February 17, 2020
    • 3 replies
    • 2.6k views
    • 
    • Dan Forsythe
    • February 18, 2020

24. Back Up Camera

    By CT Chevy Connoisseur, April 12, 2021
    • 3 replies
    • 989 views
    • 
    • ssowie
    • April 13, 2021

25. Outside air temp reading won't update

    By CRApex, November 11, 2019
    • 3 replies
    • 1.2k views
    • 
    • MeanDean2020
    • December 16, 2019