Troubleshooting, Warranty & Recalls

912 topics in this forum

1. Brake Fluid Bleeding....Vacuum vs Pressure?

   By SoCal Angler, March 25, 2025
   • 12 replies
   • 3.1k views
   • 
   • SoCal Angler
   • April 6, 2025

2. 2020 2500HD Silverado Feels like its surging when towing uphill

   By Addison Reeder IV, November 9, 2020
   • 4 replies
   • 3k views
   • 
   • kylant
   • November 20, 2020

3. 2021 Air Conditioner issues

   By SteveG63, September 1, 2023
   • 4 replies
   • 3k views
   • 
   • GMCustomerService
   • September 18, 2023

4. Ghosts, Intermittent's, Trust and no answers !!!

   By Steve.S, November 22, 2020   

   • Display
   • infotainment
   • (and 6 more)

     Tagged with:

     • Display
     • infotainment
     • Information display
     • DEF
     • Transmission temperature
     • screen freezing
     • Blank screen
     • freezing
   • 9 replies
   • 3k views
   • 
   • Steve.S
   • November 27, 2020

5. 2024 radio staying on

   By Crazy Canuck, July 7, 2023
   • 2 replies
   • 3k views
   • 
   • Crazy Canuck
   • July 8, 2023

6. Transmission running hot

   By RickeyS, December 29, 2019
   • 4 replies
   • 3k views
   • 
   • Praedator
   • January 7, 2020

7. Truck automatically turns down AC fan when I get a phone call.

   By No F-bdy Bs, August 11, 2025
   • 14 replies
   • 3k views
   • 
   • EXSlider400
   • August 16, 2025

8. 2024 High Country Issues

   By sclemmer, October 21, 2023
   • 2 replies
   • 2.9k views
   • 
   • JOJO HANNA
   • October 1, 2024

9. Gas in 2020 GMC Sierra 2500HD Diesel

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

10. undercarriage wash question

    By Sumrtime, September 11, 2023
    • 7 replies
    • 2.9k views
    • 
    • gemarsh
    • September 12, 2023

11. Radio failure 1 2

    By Dan0204, October 13, 2020
    • 17 replies
    • 2.9k views
    • 
    • InTrouble
    • November 10, 2020

12. axle tube leak at diff

    By kylant, May 2, 2021
    • 4 replies
    • 2.9k views
    • 
    • kylant
    • May 11, 2021

13. Adaptative cruise control 1 2 3

    By Homer1959, September 9, 2025
    • 36 replies
    • 2.9k views
    • 
    • Dunn
    • October 10, 2025

14. Heads Up Display Dash Rattle

    By mts6175, August 2, 2021
    • 2 replies
    • 2.8k views
    • 
    • jsward12
    • March 26, 2022

15. Build sticker location? Not in glovebox...

    By ROOK Lucky 13, May 11, 2020
    • 6 replies
    • 2.8k views
    • 
    • newdude
    • May 13, 2020

16. 2025 2500 Brake Controller Disconnecting 1 2

    By mjonesjr84, September 7, 2025
    • 20 replies
    • 2.8k views
    • 
    • Jacejr66
    • October 6, 2025

17. 2020 duramax truck jolting while towing

    By bryant87, July 12, 2022
    • 2 replies
    • 2.8k views
    • 
    • bryant87
    • October 5, 2022

18. Grease Guns for Multiple Applications?

    By SoCal Angler, February 27, 2024
    • 12 replies
    • 2.8k views
    • 
    • SoCal Angler
    • March 7, 2024

19. Brand new and puked oil 1 2

    By Chrisbert, December 5, 2023
    • 17 replies
    • 2.7k views
    • 
    • Ubiquity
    • January 14, 2024

20. 2020 2500HD LT running lights

    By Greg Nelson, December 26, 2023
    • 2 replies
    • 2.7k views
    • 
    • carkhz316
    • December 29, 2023

21. Steering lock until buckle seatbelt no more

    By Gregg Staples, December 22, 2023
    • 3 replies
    • 2.7k views
    • 
    • Silverado4x4
    • December 22, 2023

22. 2023 Silverado LT 3500 HD Halogen headlights Are Terrible

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

23. Trailer 7 pin plug. What makes the truck register that there is a trailer?

    By Joseph DeMeyer, September 14, 2024
    • 4 replies
    • 2.7k views
    • 
    • 64BAwagon
    • September 24, 2024

24. Radio no sound

    By dieselfan1, December 14, 2025
    • 14 replies
    • 2.7k views
    • 
    • chwilliams
    • February 3

25. 2024 gmc gas hard shift

    By Don032003, September 4, 2024
    • 2 replies
    • 2.7k views
    • 
    • lineman1234
    • September 6, 2024