Troubleshooting, Warranty & Recalls

920 topics in this forum

1. Infotainment Screen Camera Buttons all flashing and Inoperative

   By NWStever, August 6, 2022
   • 8 replies
   • 2.6k views
   • 
   • NWStever
   • October 24, 2022

2. Turn signal wires in the cab?

   By kevin74, October 23, 2022
   • 0 replies
   • 1.2k views
   • 
   • kevin74
   • October 23, 2022

3. Fender flare light not working no power

   By Cootr68, October 22, 2022
   • 0 replies
   • 2k views
   • 
   • Cootr68
   • October 22, 2022

4. Left Rear Turn Signal Failure ‘21 Duramax

   By BAveryP, October 3, 2022
   • 3 replies
   • 2.5k views
   • 
   • RedLT
   • October 11, 2022

5. Need help w/Sensor location and P111E code

   By blamkin86, October 9, 2022
   • 1 reply
   • 4.3k views
   • 
   • blamkin86
   • October 9, 2022

6. Lost Navigation

   By kylant, October 7, 2022
   • 1 reply
   • 749 views
   • 
   • hotairgypsy
   • October 8, 2022

7. Glitching windshield wipers

   By ForestAT4, October 7, 2022
   • 1 reply
   • 1.6k views
   • 
   • Pryme
   • October 7, 2022

8. 2020 duramax truck jolting while towing

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

9. 2022 GMC Sierra 3500 HD Diesel - Ticking

   By chevelleusaf, October 4, 2022   

   • engine
   • trans
   • (and 5 more)

     Tagged with:

     • engine
     • trans
     • clicking
     • pinging
     • diesel
     • 3500HD
     • GMC
   • 5 replies
   • 8.7k views
   • 
   • chevelleusaf
   • October 4, 2022

10. Emergency Brake Releasing

    By Crazy Canuck, October 1, 2022
    • 0 replies
    • 873 views
    • 
    • Crazy Canuck
    • October 1, 2022

11. No audible beep from rear sensors when backing

    By maxum3300, January 31, 2021
    • 2 replies
    • 31.5k views
    • 
    • Crazy Canuck
    • October 1, 2022

12. Switch backlighting too dim

    By Brummie99, September 19, 2022
    • 5 replies
    • 1.1k views
    • 
    • 4x4Hank
    • October 1, 2022

13. Def reset

    By Toops, September 27, 2022
    • 0 replies
    • 1.7k views
    • 
    • Toops
    • September 27, 2022

14. 2020 GMC Sierra Denali L5p Cooling Fan Issues

    By JR Branche, September 24, 2022
    • 2 replies
    • 7.6k views
    • 
    • gemarsh
    • September 25, 2022

15. Bed plug part number

    By BigDs_DenaliHD, September 19, 2022
    • 4 replies
    • 9k views
    • 
    • BigDs_DenaliHD
    • September 25, 2022

16. low voltage at trailer plug

    By Henry L, September 23, 2022   

    • brakes
    • 0 replies
    • 2.4k views
    • 
    • Henry L
    • September 23, 2022

17. 2020 GMC Sierra 2500HD Error Code P20EE 1 2

    By slimjim7772, September 24, 2019
    • 28 replies
    • 37.9k views
    • 
    • davester
    • September 22, 2022

18. A new 2500 I ordered questions.

    By waltman, September 19, 2022
    • 11 replies
    • 1.5k views
    • 
    • garagerog
    • September 21, 2022

19. Radio calibration

    By alonhighcontry, September 15, 2022
    • 1 reply
    • 2.4k views
    • 
    • Texas1836
    • September 17, 2022

20. "Pro Trailering" missing from MY-GMC app

    By In2racn, August 29, 2022
    • 3 replies
    • 1.7k views
    • 
    • Crazy Canuck
    • September 13, 2022

21. Throwing a code for active grill shutter

    By Daniel hurst, August 23, 2022   

    • active shutters
    • regen
    • (and 1 more)

      Tagged with:

      • active shutters
      • regen
      • recalls
    • 5 replies
    • 15.7k views
    • 
    • GMCustomerService
    • September 9, 2022

22. Paint looking unfinished

    By Carolina, September 7, 2022
    • 3 replies
    • 1.6k views
    • 
    • CamGTP
    • September 8, 2022

23. Service DEF System... XX Miles Untill 65MPH max speed!! HELP PLZ?

    By JohnnyLewis1, August 30, 2022
    • 2 replies
    • 4.1k views
    • 
    • GMCustomerService
    • September 2, 2022

24. Can't find door dog protector to fit - anyone found one?

    By Koala, August 27, 2022
    • 4 replies
    • 1.4k views
    • 
    • PhilB
    • August 28, 2022

25. Silverado CarPlay question

    By Denby, August 12, 2022
    • 1 reply
    • 847 views
    • 
    • Njmurvin
    • August 24, 2022