2020-2024 Silverado HD & Sierra HD Troubleshooting

790 topics in this forum

1. Lower Convex Mirror Adjustment

   By jasschul, December 7, 2021
   • 2 replies
   • 18.5k views
   • 
   • newdude
   • December 7, 2021

3. Brake Squeak 21’ Sierra 2500

   By Jack Aldridge, October 25, 2021
   • 4 replies
   • 2k views
   • 
   • gdlou
   • November 30, 2021

4. Inner tail gate won't open

   By Ken Hill jr, November 28, 2021
   • 2 replies
   • 709 views
   • 
   • Ken Hill jr
   • November 30, 2021

5. U1345 code Duramax

   By Klint, November 27, 2021
   • 2 replies
   • 5.3k views
   • 
   • mjm-1957
   • November 28, 2021

6. Trailer TPMS question

   By jsward12, November 25, 2021
   • 3 replies
   • 879 views
   • 
   • jsward12
   • November 27, 2021

7. Flashing trailer lights

   By insidethreat07, April 8, 2020
   • 7 replies
   • 3.6k views
   • 
   • ambest
   • November 26, 2021

8. TPMS question

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

9. Fuel mileage getting worse….. 1 2

   By Corporate72, November 6, 2021
   • 24 replies
   • 4.9k views
   • 
   • Grumpy Bear
   • November 26, 2021

10. 2020 Silverado 2500 HD Brake Failure

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

11. Body repair questions

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

12. Leaking Fuel

    By billa9b0ng, November 21, 2021
    • 4 replies
    • 3.6k views
    • 
    • billa9b0ng
    • November 23, 2021

13. Ticking noise on new truck

    By dquest, November 3, 2021
    • 9 replies
    • 14.9k views
    • 
    • Leem
    • November 15, 2021

14. Window doesn't work after dead battery

    By insidethreat07, November 4, 2021
    • 2 replies
    • 9k views
    • 
    • insidethreat07
    • November 4, 2021

15. Bose Sub only works when it wants to?

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

16. Intermediate Steering Shaft ?

    By GhostComanche, August 23, 2021
    • 9 replies
    • 7.6k views
    • 
    • MTU Alum
    • October 28, 2021

17. Missing module?

    By don penney, September 30, 2021
    • 2 replies
    • 1.5k views
    • 
    • Another JR
    • October 26, 2021

18. Check trailer brakes

    By Buster#1, April 20, 2021
    • 4 replies
    • 6k views
    • 
    • sdelam
    • October 26, 2021

19. 2020 GMC AT4 - No power to anything

    By Kyle K, November 29, 2020
    • 6 replies
    • 11.4k views
    • 
    • R Adams
    • October 26, 2021

20. 2022 Sierra rear out board heated seats.

    By Mic_, October 26, 2021
    • 0 replies
    • 1.3k views
    • 
    • Mic_
    • October 26, 2021

21. 2020 GMC 3500HD Glove Box Latch/Lock Removal

    By klcdd, October 22, 2021
    • 0 replies
    • 3.1k views
    • 
    • klcdd
    • October 22, 2021

22. 2020 High Country 3500 HD will not power trailer jack motor or trailer interior lights

    By Wahou, October 12, 2021
    • 6 replies
    • 2.3k views
    • 
    • Wahou
    • October 18, 2021

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

    By In2racn, September 25, 2021
    • 4 replies
    • 1.4k views
    • 
    • GMC4Zee
    • October 11, 2021

24. Multipro Tailgate Issue

    By seniorjumper82, September 12, 2021
    • 6 replies
    • 1.4k views
    • 
    • seniorjumper82
    • October 9, 2021

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

    By bass mechanic, October 19, 2019
    • 135 replies
    • 64.8k views
    • 
    • DavidP
    • October 6, 2021

26. Brake Noise

    By kylant, September 23, 2021
    • 4 replies
    • 9.6k views
    • 
    • sweatandsteel
    • October 5, 2021