Troubleshooting, Warranty & Recalls

918 topics in this forum

1. Errors with Flatbed Wiring

   By Crosley623, November 12, 2024
   • 0 replies
   • 756 views
   • 
   • Crosley623
   • November 12, 2024

2. 2021 Duramax, what the heck is this sound?

   By Bighig, November 9, 2024
   • 3 replies
   • 1.7k views
   • 
   • gemarsh
   • November 11, 2024

3. Rear Differential Clutch Lock up

   By Andy Casperson, November 10, 2024
   • 4 replies
   • 3.7k views
   • 
   • Andy Casperson
   • November 10, 2024

4. 2024 high country 13" ent system w/ bose - Audio not working

   By pedroericr, April 23, 2024
   • 13 replies
   • 9k views
   • 
   • H1ghlndr
   • November 7, 2024

5. Truck is not connecting to Home Wi-fi

   By Dick Olson, November 5, 2024
   • 0 replies
   • 673 views
   • 
   • Dick Olson
   • November 5, 2024

6. 2020 2500 duramax ac drain line location

   By bmpiper55, November 4, 2024
   • 0 replies
   • 507 views
   • 
   • bmpiper55
   • November 4, 2024

7. 2024 2500HD Gasser Doesn't Charge in Park! 1 2

   By jake111, October 29, 2024
   • 26 replies
   • 2.8k views
   • 
   • bruceb58
   • November 3, 2024

8. Passenger battery distribution block diagram

   By Gunnar Jacobson, December 28, 2022
   • 7 replies
   • 47k views
   • 
   • Ricklrunge
   • November 3, 2024

9. AC Port Location

   By Wmwbutler, November 1, 2024
   • 2 replies
   • 9.7k views
   • 
   • Wmwbutler
   • November 3, 2024

10. 2022 GMC 2500 HD 6.6 Gas 6 SPD 4x4 "Thud or felt motion after stopping"

    By Twayne77, October 19, 2024
    • 3 replies
    • 1.4k views
    • 
    • orchardklutzy
    • November 1, 2024

11. Hesitation or shudder/misfire?

    By BigBru, July 12, 2021
    • 13 replies
    • 8.7k views
    • 
    • Agargano98
    • October 24, 2024

12. Rattle under dash under certain power loads

    By davidm767, October 21, 2024
    • 1 reply
    • 596 views
    • 
    • revrnd
    • October 23, 2024

13. Brake Pad Life System not updating after front NEW brakes, rotor and sensor

    By Ranger473, September 26, 2023
    • 8 replies
    • 25.7k views
    • 
    • Jimmy in NC
    • October 23, 2024

14. 2024 Sierra HD AT4 Running board LED lights 1 2

    By kf9yr, November 3, 2023
    • 23 replies
    • 27.3k views
    • 
    • securityguy
    • October 22, 2024

15. 3500hd trailer brakes issue

    By Metal.Dave, September 27, 2024   

    • trailer brakes
    • 3 replies
    • 2.5k views
    • 
    • 64BAwagon
    • October 22, 2024

16. Service Trailer Brake Message With DTC C1114 When Connected To A Trailer With A Hydrastar Electric Over Hydraulic Trailer Brake Actuator

    By meklund, October 17, 2024   

    • 2024
    • Sierra 2500/3500 HD
    • (and 3 more)

      Tagged with:

      • 2024
      • Sierra 2500/3500 HD
      • Chevrolet 2500/3500 HD
      • trailer brakes
      • Hydrastar
    • 2 replies
    • 3.1k views
    • 
    • bruceb58
    • October 19, 2024

17. 2024 2500 weird issues… 1 2

    By Meade2024, March 7, 2024
    • 22 replies
    • 14.1k views
    • 
    • Meade2024
    • October 18, 2024

18. Steering Wheel Rubbing Plastic Cowling

    By lmar68, December 7, 2023
    • 3 replies
    • 3.4k views
    • 
    • luisadz80
    • October 17, 2024

19. 2022 headlight fog or condensation

    By CHIp070, January 18, 2024
    • 2 replies
    • 5.9k views
    • 
    • fvoors
    • October 9, 2024

20. Radio Silence - No Sound?

    By H1ghlndr, September 13, 2024
    • 14 replies
    • 14.5k views
    • 
    • H1ghlndr
    • October 7, 2024

21. Boat trailer running lights won't work on new GMC AT4HD

    By cjacksonlasd, September 28, 2024
    • 3 replies
    • 987 views
    • 
    • ManyCamaroz
    • October 5, 2024

22. Replacement Tailgate Cables

    By AndrewF, September 12, 2024
    • 7 replies
    • 3.5k views
    • 
    • revrnd
    • October 4, 2024

23. 2024 High Country Issues

    By sclemmer, October 21, 2023
    • 2 replies
    • 3k views
    • 
    • JOJO HANNA
    • October 1, 2024

24. 2024 Silverado Cameras are not working

    By Fred Strom, September 29, 2024
    • 0 replies
    • 631 views
    • 
    • Fred Strom
    • September 29, 2024

25. Noisy steering column 1 2 3 4 8

    By STGS, November 4, 2019
    • 108 replies
    • 89.8k views
    • 
    • Snlk
    • September 28, 2024