2020+ Silverado HD & Sierra HD Troubleshooting

621 topics in this forum

1. 2024 still having headlight problems even after replacement

   By jd64, August 17
   • 9 replies
   • 875 views
   • 
   • GMCustomerService
   • September 18

3. Can't program new key fob

   By Mark Brian, September 17
   • 1 reply
   • 192 views
   • 
   • newdude
   • September 18

4. Infotainment screen goes blank after selecting the TRAILERING APP

   By Ranger473, September 15
   • 2 replies
   • 234 views
   • 
   • UWSkier
   • September 16

5. Traction Control Activating on Left Turns 1 2

   By Tville, November 3, 2019   

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

     Tagged with:

     • 2020hd
     • 2020 l5p
     • DenaliHD
   • 23 replies
   • 13.3k views
   • 
   • Hagar68
   • September 15

6. SOLVED - 12V Battery feed circuit seems to be tied to the Tail Lamps circuit 1 2

   By Ranger473, September 2
   • 26 replies
   • 1.2k views
   • 
   • gemarsh
   • September 15

7. Hands free no workie

   By madweazl, August 22
   • 4 replies
   • 438 views
   • 
   • madweazl
   • September 14

8. Transparent trailer won't calibrate 1 2

   By Topath, June 27
   • 18 replies
   • 1.4k views
   • 
   • Jim-GA
   • September 14

9. Side camera calibration to align with front and back

   By Jim-GA, July 27
   • 4 replies
   • 538 views
   • 
   • Jim-GA
   • September 14

10. 360 camera alignment

    By CHIp070, September 30, 2021
    • 5 replies
    • 2.6k views
    • 
    • Steve Boston
    • September 14

11. undercarriage wash question

    By Sumrtime, September 11
    • 7 replies
    • 429 views
    • 
    • gemarsh
    • September 12

12. active aero shutters 1 2 3 4

    By H1ghlndr, June 23, 2020
    • 55 replies
    • 28.2k views
    • 
    • tosun
    • September 10

13. 2022 High Country HD retractable running board issues 1 2 3 4

    By mtbadbob, July 30, 2022
    • 58 replies
    • 12.1k views
    • 
    • ShotgunZ71
    • September 9

14. TPMS Warning on myGMC App

    By zeb321, September 6
    • 7 replies
    • 280 views
    • 
    • Crazy Canuck
    • September 7

15. 7 Pin Power Draw

    By Bob 5th Wheel, August 24
    • 1 reply
    • 377 views
    • 
    • TT331FB
    • September 3

16. Feeling Vibration and Jiggles in 2024 HD Gasser Steering Wheel 1 2

    By Texas Gasser, July 6
    • 15 replies
    • 1.5k views
    • 
    • GMCustomerService
    • August 31

17. 2020 2500hd high country door latch noisy 1 2 3 4

    By Paul jackckson, December 15, 2020
    • 47 replies
    • 13.9k views
    • 
    • Ralph Blackburn
    • August 30

18. Big chunk metal on first oil change

    By Dunn, August 24
    • 8 replies
    • 613 views
    • 
    • Dunn
    • August 28

19. Lemon/misbuild? Several issues

    By Craig Blythe, August 20
    • 1 reply
    • 524 views
    • 
    • Dunn
    • August 25

20. More trailering electronics fun: "Check rear trailer lamp"

    By UWSkier, August 23
    • 0 replies
    • 209 views
    • 
    • UWSkier
    • August 23

21. 2024 Sierra 2500HD SLT Rear Trailer Camera exterior part # 85118298

    By glenn trider, August 18
    • 1 reply
    • 531 views
    • 
    • kf9yr
    • August 20

22. Trailer Calibration

    By Topath, May 27
    • 8 replies
    • 1.4k views
    • 
    • Kevin Peele
    • August 14

23. Infotainment screen issue

    By Sumrtime, August 7
    • 1 reply
    • 401 views
    • 
    • BuckWallace
    • August 12

24. grease fittings 1 2 3 4

    By Bigbucks10, March 2, 2020
    • 53 replies
    • 46.7k views
    • 
    • 64BAwagon
    • August 11

25. 2024 Chevy 2500 HD camera not working

    By Jercole, May 26
    • 5 replies
    • 832 views
    • 
    • Tfkkolar
    • August 9

26. Multiflex tailgate disable feature

    By Slsl123, August 7
    • 2 replies
    • 464 views
    • 
    • Another JR
    • August 8