2020-2024 Silverado HD & Sierra HD Troubleshooting

790 topics in this forum

1. TPMS for trailer programmming

   By Mic_, December 30, 2021
   • 13 replies
   • 4.2k views
   • 
   • Truston Gunter
   • May 12, 2022

3. Bottom Radiator Shroud / Scoop / Cover Removal?

   By Tomato, May 8, 2022
   • 0 replies
   • 553 views
   • 
   • Tomato
   • May 8, 2022

4. 2020 Gasser transmission woes

   By Slabhunter, May 7, 2022
   • 1 reply
   • 1.5k views
   • 
   • Wxman
   • May 8, 2022

5. Drive shaft Vibration

   By Dracer173, April 27, 2022
   • 5 replies
   • 997 views
   • 
   • Dracer173
   • May 2, 2022

6. Android Auto wireless dongle

   By Truckchauffeur, April 30, 2022
   • 0 replies
   • 1.3k views
   • 
   • Truckchauffeur
   • April 30, 2022

7. Tailgate release button won’t work with doors locked

   By kf9yr, April 26, 2022
   • 2 replies
   • 841 views
   • 
   • NWStever
   • April 27, 2022

8. Trailer Cameras Not Working 1 2

   By Bazel, February 19, 2021   

   • Trailer
   • camera
   • 22 replies
   • 22.2k views
   • 
   • Charlie Blackwood
   • April 14, 2022

9. 2020 DEF tank replacement with Updated re-pin

   By Agez06, April 11, 2022
   • 0 replies
   • 1.7k views
   • 
   • Agez06
   • April 11, 2022

10. 2021 GMC 2500 Issues

    By truck27, April 7, 2022
    • 0 replies
    • 1.3k views
    • 
    • truck27
    • April 7, 2022

11. 3500HD WT Tailgate camera/ Electric Latch Wiring...Diagram?

    By Tommy Mac, April 6, 2022
    • 2 replies
    • 5.7k views
    • 
    • Tommy Mac
    • April 7, 2022

12. No rear parking lights (Wiring diagram request)

    By MFranco, April 6, 2022
    • 4 replies
    • 8.6k views
    • 
    • MFranco
    • April 6, 2022

13. Service Steering Column Lock 1 2

    By Tville, October 2, 2019   

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

      Tagged with:

      • 2020hd
      • l5p duramax
      • denali HD
    • 25 replies
    • 33.1k views
    • 
    • squad_bucket
    • April 5, 2022

14. CEL with Service Emissions System message on 6.6L GAS

    By Rozz522, March 29, 2022
    • 1 reply
    • 2.8k views
    • 
    • sheath
    • March 29, 2022

15. Trailer camera issues 1 2 3 4 7

    By In2racn, November 5, 2019
    • 94 replies
    • 37k views
    • 
    • Certpilot
    • March 28, 2022

16. Heads Up Display Dash Rattle

    By mts6175, August 2, 2021
    • 2 replies
    • 2.3k views
    • 
    • jsward12
    • March 26, 2022

17. Has anyone had paint defects?

    By Derek Howard, August 17, 2020
    • 7 replies
    • 3.3k views
    • 
    • Chevy Guy 1234
    • March 24, 2022

18. New Truck questions

    By marpel, March 14, 2022
    • 6 replies
    • 1.3k views
    • 
    • redwngr
    • March 20, 2022

19. Steering sound at idle normal?

    By RJ2500, March 16, 2022
    • 4 replies
    • 3.1k views
    • 
    • RJ2500
    • March 16, 2022

20. Rough idle when in gear

    By Pipelayer, June 7, 2020
    • 7 replies
    • 9.1k views
    • 
    • Dhamilton07
    • March 5, 2022

21. Keyfob #2 is the default...how do I switch it to default to Keyfob #1?

    By RWA007, February 15, 2022
    • 2 replies
    • 883 views
    • 
    • RWA007
    • March 3, 2022

22. 2020 GMC Sierra 2500HD Towing Mirrors

    By Mrzacharrr, February 15, 2022
    • 2 replies
    • 3.8k views
    • 
    • redwngr
    • March 1, 2022

23. Power Folding Trailering Mirrors Malfunction

    By Mr. Jim, January 31, 2021
    • 3 replies
    • 5.6k views
    • 
    • Truston Gunter
    • March 1, 2022

24. 2021 2500HD Power Tailgate not working

    By MessF4, November 21, 2021
    • 1 reply
    • 3.6k views
    • 
    • GJBruhin
    • February 28, 2022

25. Fuel filter reset

    By Irish80, December 18, 2019
    • 9 replies
    • 47.2k views
    • 
    • jcpittman
    • February 18, 2022

26. Suspension Noise

    By tbully, February 17, 2022
    • 6 replies
    • 5.8k views
    • 
    • Leem
    • February 18, 2022