2020-2024 Silverado HD & Sierra HD Troubleshooting

789 topics in this forum

1. Hesitation or shudder/misfire?

   By BigBru, July 12, 2021
   • 13 replies
   • 5.3k views
   • 
   • Agargano98
   • October 24

3. Rattle under dash under certain power loads

   By davidm767, October 21
   • 1 reply
   • 254 views
   • 
   • revrnd
   • October 23

4. Brake Pad Life System not updating after front NEW brakes, rotor and sensor

   By Ranger473, September 26, 2023
   • 8 replies
   • 4k views
   • 
   • Jimmy in NC
   • October 23

5. 2024 Sierra HD AT4 Running board LED lights 1 2

   By kf9yr, November 3, 2023
   • 23 replies
   • 13.1k views
   • 
   • securityguy
   • October 22

6. 3500hd trailer brakes issue

   By Metal.Dave, September 27   

   • trailer brakes
   • 3 replies
   • 603 views
   • 
   • 64BAwagon
   • October 22

7. Service Trailer Brake Message With DTC C1114 When Connected To A Trailer With A Hydrastar Electric Over Hydraulic Trailer Brake Actuator

   By meklund, October 17   

   • 2024
   • Sierra 2500/3500 HD
   • (and 3 more)

     Tagged with:

     • 2024
     • Sierra 2500/3500 HD
     • Chevrolet 2500/3500 HD
     • trailer brakes
     • Hydrastar
   • 2 replies
   • 411 views
   • 
   • bruceb58
   • October 19

8. 2024 2500 weird issues… 1 2

   By Meade2024, March 7
   • 22 replies
   • 7k views
   • 
   • Meade2024
   • October 18

9. Steering Wheel Rubbing Plastic Cowling

   By lmar68, December 7, 2023
   • 3 replies
   • 1.7k views
   • 
   • luisadz80
   • October 17

10. 2022 headlight fog or condensation

    By CHIp070, January 18
    • 2 replies
    • 2.8k views
    • 
    • fvoors
    • October 9

11. tow mirror issue 1 2

    By kylant, September 27, 2023
    • 18 replies
    • 6.8k views
    • 
    • 426ted
    • October 8

12. Automatic Highbeam / LDW Issues Only at Night

    By crspangenberg, September 25
    • 1 reply
    • 432 views
    • 
    • Crazy Canuck
    • October 8

13. Radio Silence - No Sound?

    By H1ghlndr, September 13
    • 14 replies
    • 1.4k views
    • 
    • H1ghlndr
    • October 7

14. Boat trailer running lights won't work on new GMC AT4HD

    By cjacksonlasd, September 28
    • 3 replies
    • 458 views
    • 
    • ManyCamaroz
    • October 5

15. Replacement Tailgate Cables

    By AndrewF, September 12
    • 7 replies
    • 674 views
    • 
    • revrnd
    • October 4

16. 2024 High Country Issues

    By sclemmer, October 21, 2023
    • 2 replies
    • 1.9k views
    • 
    • JOJO HANNA
    • October 1

17. 2024 Silverado Cameras are not working

    By Fred Strom, September 29
    • 0 replies
    • 250 views
    • 
    • Fred Strom
    • September 29

18. Noisy steering column 1 2 3 4 8

    By STGS, November 4, 2019
    • 108 replies
    • 71.4k views
    • 
    • Snlk
    • September 28

19. Transparent trailer won't calibrate 1 2

    By Topath, June 27, 2023
    • 27 replies
    • 8.5k views
    • 
    • Spin542
    • September 27

20. 24’ 2500HD Custom Infotainment Screen Broke

    By HomelessMammal, September 26
    • 0 replies
    • 309 views
    • 
    • HomelessMammal
    • September 26

21. 2024 Sierra HD Wire Diagram

    By Nick McDermott, November 1, 2023
    • 7 replies
    • 11.9k views
    • 
    • Alec H
    • September 25

22. Rattle - Upper Glovebox Door

    By Crazy Canuck, January 17
    • 3 replies
    • 1.2k views
    • 
    • ddenunzio
    • September 25

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

    By Joseph DeMeyer, September 14
    • 4 replies
    • 614 views
    • 
    • 64BAwagon
    • September 24

24. 2022 Duramax 2500HD won’t start

    By 22DuramaxHELP, September 24
    • 0 replies
    • 309 views
    • 
    • 22DuramaxHELP
    • September 24

25. Error code u18dc post battery failure

    By MikeMikeMike, July 1
    • 2 replies
    • 1.8k views
    • 
    • Dusty2020Hd
    • September 20

26. 2024 High Country-No Audio

    By CRApex, October 19, 2023
    • 10 replies
    • 18.3k views
    • 
    • H1ghlndr
    • September 19