Troubleshooting, Warranty & Recalls

919 topics in this forum

1. Trailer lights 1 2 3 4 5

   By Jordan94, August 24, 2019   

   • Towing
   • lights
   • (and 2 more)

     Tagged with:

     • Towing
     • lights
     • 2020hd
     • 6.6L Duramax
   • 64 replies
   • 107.7k views
   • 
   • Colan
   • November 8, 2023

2. Where can I find this plug?

   By Steve Rosenberg, September 16, 2023
   • 3 replies
   • 1.5k views
   • 
   • zippydoda201
   • November 5, 2023

3. Is it possible for TPMS to be reversed?

   By Terry OBrien, March 26, 2023
   • 8 replies
   • 1.9k views
   • 
   • reb0957
   • November 1, 2023

4. Trailer Calibration

   By Topath, May 27, 2023
   • 11 replies
   • 8.2k views
   • 
   • Meade2024
   • October 25, 2023

5. Transmission Dipstick...? 1 2 3

   By THE YETI, August 4, 2021
   • 35 replies
   • 180.2k views
   • 
   • 64BAwagon
   • October 24, 2023

6. 2024 HD series No power to 7 pin or in-bed 4 Pin

   By davidm767, October 19, 2023
   • 3 replies
   • 11.1k views
   • 
   • davidm767
   • October 20, 2023

7. Anyone think theres a chance of GM updating the gauges to something usable ? 1 2

   By 64BAwagon, October 9, 2023
   • 15 replies
   • 2k views
   • 
   • Jettech1
   • October 13, 2023

8. 2023 2500 loud rattle

   By Sportlightpilot, October 12, 2023
   • 1 reply
   • 891 views
   • 
   • Another JR
   • October 12, 2023

9. 2023 Silverado LT 3500 HD Halogen headlights Are Terrible

   By 2Ranchers, September 24, 2023
   • 5 replies
   • 2.7k views
   • 
   • Leem
   • October 12, 2023

10. 2020 Denali Diesel 3500... 60K - shock question

    By In2racn, October 2, 2023
    • 2 replies
    • 1k views
    • 
    • Dunn
    • October 6, 2023

11. Wrap

    By goat226, September 25, 2023
    • 1 reply
    • 1.2k views
    • 
    • TitoGoldner
    • October 4, 2023

12. Stubborn Tailgate Release

    By tbully, June 17, 2022
    • 8 replies
    • 1.9k views
    • 
    • NotoriousGT350
    • October 2, 2023

13. Multipro Tailgate won’t shut flush

    By Klein_Attitude, October 1, 2023
    • 2 replies
    • 876 views
    • 
    • Klein_Attitude
    • October 1, 2023

14. Key wont shut off

    By Larry Naslund, September 29, 2023
    • 0 replies
    • 657 views
    • 
    • Larry Naslund
    • September 29, 2023

15. GM How Did You Mess This Up??

    By T Ono, September 14, 2023
    • 6 replies
    • 1.8k views
    • 
    • nitro882
    • September 26, 2023

16. 2024 GMC 2500 Denali hd

    By Jeff Dinsmore, September 25, 2023
    • 2 replies
    • 998 views
    • 
    • 64BAwagon
    • September 25, 2023

17. rear seat usb

    By GmEnjoyer, September 25, 2023
    • 0 replies
    • 652 views
    • 
    • GmEnjoyer
    • September 25, 2023

18. Every cold start no power - reboot (restart) needed

    By In2racn, September 24, 2023
    • 1 reply
    • 842 views
    • 
    • GMCustomerService
    • September 25, 2023

19. 23 2500hd ltz duramax rear end wandering

    By Lhpnick, September 23, 2023   

    • wheel
    • rear end
    • (and 8 more)

      Tagged with:

      • wheel
      • rear end
      • problem
      • truck
      • red
      • ltz z71
      • Silverado
      • 6.6L Duramax
      • Chevy
      • Tires
    • 1 reply
    • 1.9k views
    • 
    • swathdiver
    • September 24, 2023

20. 23 2500hd ltz duramax rear end wandering

    By Lhpnick, September 23, 2023   

    • Chevy
    • 6.6L Duramax
    • (and 8 more)

      Tagged with:

      • Chevy
      • 6.6L Duramax
      • Silverado
      • ltz z71
      • red
      • truck
      • problem
      • rear end
      • wheel
      • Tires
    • 0 replies
    • 1.7k views
    • 
    • Lhpnick
    • September 23, 2023

21. Gas in 2020 GMC Sierra 2500HD Diesel

    By Laurent Kim, September 19, 2023
    • 5 replies
    • 2.9k views
    • 
    • 64BAwagon
    • September 21, 2023

22. 2021 Air Conditioner issues

    By SteveG63, September 1, 2023
    • 4 replies
    • 3.4k views
    • 
    • GMCustomerService
    • September 18, 2023

23. Can't program new key fob

    By Mark Brian, September 17, 2023
    • 1 reply
    • 1.5k views
    • 
    • newdude
    • September 18, 2023

24. Infotainment screen goes blank after selecting the TRAILERING APP

    By Ranger473, September 15, 2023
    • 2 replies
    • 1.5k views
    • 
    • UWSkier
    • September 16, 2023

25. Traction Control Activating on Left Turns 1 2

    By Tville, November 3, 2019   

    • 2020hd
    • 2020 l5p
    • (and 1 more)

      Tagged with:

      • 2020hd
      • 2020 l5p
      • DenaliHD
    • 23 replies
    • 22.7k views
    • 
    • Hagar68
    • September 15, 2023