2020-2024 Silverado HD & Sierra HD Troubleshooting

717 topics in this forum

1. 2024 Turn Signals Not Working Properly at Times 1 2 3 4 6

   By jd64, May 21, 2023
   • 83 replies
   • 17.9k views
   • 
   • 453030
   • 19 hours ago

3. 2022 Chevrolet 2500 HD Service 4WD

   By Chuckfarmer, Monday at 02:01 AM
   • 2 replies
   • 214 views
   • 
   • wsrutherford
   • 19 hours ago

4. 2024 High Country-No Audio

   By CRApex, October 19, 2023
   • 6 replies
   • 3.4k views
   • 
   • pigpen23
   • Wednesday at 06:33 PM

5. 2024 high country 13" ent system w/ bose - Audio not working

   By pedroericr, Tuesday at 06:32 PM
   • 1 reply
   • 131 views
   • 
   • pigpen23
   • Tuesday at 09:49 PM

6. Trailer running light issue

   By CCMC, July 12, 2021
   • 5 replies
   • 16.3k views
   • 
   • PBrown1
   • Monday at 11:32 PM

7. Clunking Nosie Letting off gas pedal

   By sstoner911, April 19
   • 1 reply
   • 206 views
   • 
   • Epsilon Plus
   • Sunday at 02:06 PM

8. 2021 Sierra Trailer Brake Problems

   By Whip, April 19
   • 0 replies
   • 121 views
   • 
   • Whip
   • April 19

9. Leaking rear window 1 2 3

   By redpat2061, September 24, 2020
   • 43 replies
   • 13.6k views
   • 
   • GMCustomerService
   • April 17

10. 2024 Brake controller Problems 1 2 3 4 10

    By Curt Lowe, May 10, 2023
    • 144 replies
    • 40.2k views
    • 
    • PaulBeck
    • April 17

11. 2020 GMC AT4 - Won't start, won't even attempt to turn over 1 2 3

    By CO 2020 GMC AT4, February 20, 2020
    • 36 replies
    • 46k views
    • 
    • vranasaurus
    • April 16

12. Accessory gets re-assigned as Guest Trailer; Apply Car Play sometimes doesn't connect

    By davidm767, April 14
    • 0 replies
    • 160 views
    • 
    • davidm767
    • April 14

13. 2024 Sierra HD AT4 Running board LED lights 1 2

    By kf9yr, November 3, 2023
    • 21 replies
    • 5.6k views
    • 
    • mtbadbob
    • April 14

14. 2023 2500 High Country trailer plug

    By Jack Horn, March 7
    • 4 replies
    • 554 views
    • 
    • Jack Horn
    • April 14

15. Crank no start

    By Clent, January 18
    • 5 replies
    • 1.2k views
    • 
    • rdonarski
    • April 12

16. Side camera calibration to align with front and back

    By Jim-GA, July 27, 2023
    • 8 replies
    • 2.7k views
    • 
    • Jim-GA
    • April 12

17. 2024 HD key fobs activating in pocket

    By 64BAwagon, April 11
    • 5 replies
    • 286 views
    • 
    • 64BAwagon
    • April 11

18. Rear differential level on 2024 3500 L8T

    By 64BAwagon, April 10
    • 2 replies
    • 393 views
    • 
    • Capt Bob
    • April 11

19. tow mirror issue

    By kylant, September 27, 2023
    • 8 replies
    • 2.2k views
    • 
    • GMCustomerService
    • April 10

20. Transparent trailer won't calibrate 1 2

    By Topath, June 27, 2023
    • 21 replies
    • 4.1k views
    • 
    • bjwes
    • April 10

21. Code P159F

    By EdinOhio, April 7
    • 2 replies
    • 258 views
    • 
    • EdinOhio
    • April 9

22. Belt squeal (?) on cold start up on 2024 Chevy 2500HD 6.6L Gasser

    By gastrohman, March 11
    • 3 replies
    • 661 views
    • 
    • mrjulian416
    • April 8

23. TTPMS issue

    By insidethreat07, April 7
    • 0 replies
    • 199 views
    • 
    • insidethreat07
    • April 7

24. Rear Window Leak and GM warranty warning

    By bowtie2007, March 18, 2022
    • 12 replies
    • 19.7k views
    • 
    • Spikey
    • April 6

25. 2024 2500HD LTZ L8T Electrical Issues

    By TXGM White, April 4
    • 5 replies
    • 523 views
    • 
    • Pryme
    • April 5

26. 2021 GMC Sierra 2500 Denali HD Tow Mirror - Issues 1 2

    By 2021GMCLP5, September 22, 2022
    • 28 replies
    • 8.5k views
    • 
    • mrjulian416
    • April 4