2020-2024 Silverado HD & Sierra HD Troubleshooting

715 topics in this forum

1. Flashing trailer lights

   By insidethreat07, April 8, 2020
   • 7 replies
   • 3.2k views
   • 
   • ambest
   • November 26, 2021

3. TPMS question

   By Justin w, November 26, 2021
   • 4 replies
   • 661 views
   • 
   • redwngr
   • November 26, 2021

4. Fuel mileage getting worse….. 1 2

   By Corporate72, November 6, 2021
   • 24 replies
   • 4k views
   • 
   • Grumpy Bear
   • November 26, 2021

5. 2020 Silverado 2500 HD Brake Failure

   By Dwight Gilbert, November 26, 2021
   • 0 replies
   • 1.1k views
   • 
   • Dwight Gilbert
   • November 26, 2021

6. Body repair questions

   By Edmond, November 25, 2021
   • 3 replies
   • 573 views
   • 
   • Edmond
   • November 25, 2021

7. Leaking Fuel

   By billa9b0ng, November 21, 2021
   • 4 replies
   • 1.9k views
   • 
   • billa9b0ng
   • November 23, 2021

8. Ticking noise on new truck

   By dquest, November 3, 2021
   • 9 replies
   • 11.7k views
   • 
   • Leem
   • November 15, 2021

9. Window doesn't work after dead battery

   By insidethreat07, November 4, 2021
   • 2 replies
   • 7.4k views
   • 
   • insidethreat07
   • November 4, 2021

10. Bose Sub only works when it wants to?

    By aliveguy5, October 28, 2021
    • 1 reply
    • 742 views
    • 
    • aliveguy5
    • November 4, 2021

11. Intermediate Steering Shaft ?

    By GhostComanche, August 23, 2021
    • 9 replies
    • 6.1k views
    • 
    • MTU Alum
    • October 28, 2021

12. Missing module?

    By don penney, September 30, 2021
    • 2 replies
    • 1.3k views
    • 
    • Another JR
    • October 26, 2021

13. Check trailer brakes

    By Buster#1, April 20, 2021
    • 4 replies
    • 5k views
    • 
    • sdelam
    • October 26, 2021

14. 2020 GMC AT4 - No power to anything

    By Kyle K, November 29, 2020
    • 6 replies
    • 9.4k views
    • 
    • R Adams
    • October 26, 2021

15. 2022 Sierra rear out board heated seats.

    By Mic_, October 26, 2021
    • 0 replies
    • 1.1k views
    • 
    • Mic_
    • October 26, 2021

16. 2020 GMC 3500HD Glove Box Latch/Lock Removal

    By klcdd, October 22, 2021
    • 0 replies
    • 2.8k views
    • 
    • klcdd
    • October 22, 2021

17. 2020 High Country 3500 HD will not power trailer jack motor or trailer interior lights

    By Wahou, October 12, 2021
    • 6 replies
    • 1.6k views
    • 
    • Wahou
    • October 18, 2021

18. Trailer camera issues - 2020 Denali HD - Bad 7 way connectors? Recall?

    By In2racn, September 25, 2021
    • 4 replies
    • 1.2k views
    • 
    • GMC4Zee
    • October 11, 2021

19. Multipro Tailgate Issue

    By seniorjumper82, September 12, 2021
    • 6 replies
    • 1.3k views
    • 
    • seniorjumper82
    • October 9, 2021

20. Engine knock a 500 miles 1 2 3 4 10

    By bass mechanic, October 19, 2019
    • 135 replies
    • 60.9k views
    • 
    • DavidP
    • October 6, 2021

21. Brake Noise

    By kylant, September 23, 2021
    • 4 replies
    • 7.8k views
    • 
    • sweatandsteel
    • October 5, 2021

22. Service keyless start system comes up when I start my vehicle

    By don penney, September 23, 2021
    • 0 replies
    • 530 views
    • 
    • don penney
    • September 23, 2021

23. 10L1000 Assembly Lube?

    By Armgrim, September 19, 2021
    • 2 replies
    • 634 views
    • 
    • Armgrim
    • September 20, 2021

24. 2020 2500HD AT4 trans case leak and Stranded

    By Kaamacat, September 15, 2021
    • 0 replies
    • 564 views
    • 
    • Kaamacat
    • September 15, 2021

25. Trailer light pre departure check

    By dquest, September 4, 2021
    • 4 replies
    • 872 views
    • 
    • dquest
    • September 11, 2021

26. 2020 2500HD Transmission issues 1 2 3

    By gpraceworks, November 16, 2019
    • 43 replies
    • 43.6k views
    • 
    • Scott Wedge
    • September 9, 2021