Troubleshooting, Warranty & Recalls

919 topics in this forum

1. Random center console shutdowns and service messages

   By JJM05, June 2, 2020
   • 3 replies
   • 1.4k views
   • 
   • airwolf912
   • July 8, 2020

2. Navigation Update

   By HackaNi, July 2, 2020
   • 1 reply
   • 1k views
   • 
   • LSPowered65
   • July 2, 2020

3. Trailering App mileage issue

   By Randy Linton, June 30, 2020
   • 1 reply
   • 674 views
   • 
   • Tomato
   • July 1, 2020

4. 2020 2500HD Duramax crackling on idle

   By Newduramaxh*ar, June 29, 2020
   • 3 replies
   • 2.2k views
   • 
   • Tomato
   • June 30, 2020

5. 2020 2500 HD Sierra No Audio!!!

   By H.B. Shannon, June 14, 2020
   • 7 replies
   • 1.8k views
   • 
   • LSPowered65
   • June 28, 2020

6. Full lock at turn noise

   By GMdude2020, June 25, 2020
   • 0 replies
   • 1.5k views
   • 
   • GMdude2020
   • June 25, 2020

7. Abs pump noise

   By Rick o, June 25, 2020
   • 0 replies
   • 2.2k views
   • 
   • Rick o
   • June 25, 2020

8. Passenger Window Not Working

   By bja37, June 11, 2020
   • 3 replies
   • 1.2k views
   • 
   • ickyoldman
   • June 23, 2020

9. Trailer Disconnected but still getting power?

   By LarryM, June 17, 2020
   • 2 replies
   • 12.5k views
   • 
   • bass mechanic
   • June 23, 2020

10. 2020 Sierra 3500HD DIC

    By MDB517, June 11, 2020
    • 2 replies
    • 1.1k views
    • 
    • MDB517
    • June 21, 2020

11. Need Part # and/or name for 7 way plug in the bed

    By es2020HD, June 21, 2020   

    • 7-way plug
    • bed plug
    • 2 replies
    • 3.3k views
    • 
    • es2020HD
    • June 21, 2020

12. HELP! How does one drain the DEF tank? Need to empty it.

    By KC Desert, February 1, 2020
    • 11 replies
    • 31.5k views
    • 
    • hotairgypsy
    • June 20, 2020

13. Brake Controller / Dexter EOH Actuator Does not Work / Glitchy

    By jjackkrash, June 15, 2020
    • 4 replies
    • 8.2k views
    • 
    • rblanch
    • June 19, 2020

14. System Update

    By Rabbittown, June 14, 2020
    • 1 reply
    • 1.1k views
    • 
    • Mbower2020
    • June 18, 2020

15. New truck hot transmission

    By Evansdad, May 31, 2020
    • 8 replies
    • 7.2k views
    • 
    • SkidooSteve12
    • June 17, 2020

16. Need reset on power tailgate.

    By pegasus, June 8, 2020
    • 0 replies
    • 7k views
    • 
    • pegasus
    • June 8, 2020

17. Power steering noise

    By Tahoe555, May 19, 2020
    • 3 replies
    • 6.7k views
    • 
    • bigman32hockey
    • June 4, 2020

18. Trailering App Gremlins

    By Tomato, May 17, 2020
    • 2 replies
    • 1.3k views
    • 
    • Tomato
    • June 2, 2020

19. 2020 2500HD not starting

    By Reiss' Pieces NY, May 28, 2020
    • 2 replies
    • 1.2k views
    • 
    • Stand By
    • May 29, 2020

20. Trailer tail lights faintly flashing while parked

    By Mbower2020, May 24, 2020
    • 3 replies
    • 2.1k views
    • 
    • Mbower2020
    • May 25, 2020

21. Infotainment update 1 2 3

    By Beach0433, February 27, 2020
    • 39 replies
    • 10k views
    • 
    • rail jockey
    • May 25, 2020

22. wheel offset options

    By Jason Caswell, May 21, 2020
    • 1 reply
    • 3.5k views
    • 
    • bass mechanic
    • May 23, 2020

23. Computer acting screwy

    By Jay Gill, May 22, 2020
    • 1 reply
    • 628 views
    • 
    • Jay Gill
    • May 22, 2020

24. How to remove belt molding

    By 2020HD, May 20, 2020
    • 0 replies
    • 4.3k views
    • 
    • 2020HD
    • May 20, 2020

25. Passenger power window

    By FLTRXS, May 14, 2020
    • 3 replies
    • 701 views
    • 
    • bass mechanic
    • May 16, 2020