2015-2019 Silverado & Sierra HD Troubleshooting

721 topics in this forum

1. Charging system 1 2

   By Leone1662, April 12, 2018
   • 26 replies
   • 69.4k views
   • 
   • GMCustomerService
   • September 30, 2022

3. 2017 2500 Denali HD Radio

   By Chief Redneck, September 29, 2022
   • 1 reply
   • 730 views
   • 
   • GMCustomerService
   • September 30, 2022

4. HELP! Intermittent acceleration issues @3000rpm

   By Zackdarden5, September 29, 2022
   • 0 replies
   • 654 views
   • 
   • Zackdarden5
   • September 29, 2022

5. Service trailer brake system/check trailer brake wiring FIXED!

   By zmnypit, October 13, 2018
   • 6 replies
   • 34k views
   • 
   • Chief Redneck
   • September 29, 2022

6. Drivers assist vibration not working either side of seat

   By Paul Trahon, September 28, 2022
   • 4 replies
   • 5.9k views
   • 
   • asilverblazer
   • September 29, 2022

7. CAL error code on dash cannot reset

   By Scupper, September 27, 2022
   • 3 replies
   • 7k views
   • 
   • Scupper
   • September 29, 2022

8. Difficulty opening tailgate on my 2016 gmc 3500

   By Sam Kleinbaum, September 25, 2022
   • 0 replies
   • 528 views
   • 
   • Sam Kleinbaum
   • September 25, 2022

9. Dash lit up like a Christmas tree.....bad ground?

   By Offcamber, September 18, 2022
   • 2 replies
   • 737 views
   • 
   • jthoske
   • September 23, 2022

10. Odd hesitation on 2015 Sierra 2500 6.0L 1 2

    By AbzDad, September 3, 2019
    • 15 replies
    • 9.2k views
    • 
    • Zackdarden5
    • September 12, 2022

11. 2018 Silverado High Country wireless charger not working!!

    By Tom Schaech, July 31, 2022
    • 2 replies
    • 945 views
    • 
    • newdude
    • August 5, 2022

12. After fueling, and ONLY after fueling, truck starts hard.

    By Red Blocker, August 3, 2022   

    • startup
    • cranking
    • (and 2 more)

      Tagged with:

      • startup
      • cranking
      • vapor
      • sensor
    • 3 replies
    • 754 views
    • 
    • asilverblazer
    • August 3, 2022

13. Parking Brake

    By Skeld, July 21, 2022
    • 0 replies
    • 641 views
    • 
    • Skeld
    • July 21, 2022

14. Remote Tailgate lock/unlock actuator not working

    By 69velle, December 10, 2020
    • 1 reply
    • 3.8k views
    • 
    • loganriggs
    • July 18, 2022

15. Service 4WD 1 2

    By ShotgunZ71, August 4, 2017
    • 15 replies
    • 22.9k views
    • 
    • kamili williamson
    • July 16, 2022

16. 3rd brake light issue

    By Countrys1500GMC, July 8, 2022
    • 3 replies
    • 752 views
    • 
    • GMCustomerService
    • July 15, 2022

17. Issues with 2015 silverado 2500hd

    By ryanhardy, January 20, 2021
    • 4 replies
    • 3.5k views
    • 
    • kgkern01
    • July 6, 2022

18. Factory Battery life

    By GMCrat, January 17, 2022
    • 12 replies
    • 6.2k views
    • 
    • revrnd
    • June 28, 2022

19. Several Codes Help Diagnose

    By Ryan Darrington, January 30, 2021
    • 1 reply
    • 2.9k views
    • 
    • dragstang86
    • June 21, 2022

20. U1510 then p059f

    By Rocky Horn, June 17, 2022   

    • Active grill shutters
    • 2 replies
    • 4.1k views
    • 
    • Rocky Horn
    • June 19, 2022

21. WiFi hotspot problem and it fixed itself?

    By calgator73, April 13, 2017
    • 5 replies
    • 7.2k views
    • 
    • Theynine
    • June 8, 2022

22. Tailgate Lock wiring...

    By Gunn, November 20, 2017   

    • sierra tailgate lock wiring harness
    • 5 replies
    • 14k views
    • 
    • Sammy jones
    • June 6, 2022

23. Progressively Low fuel mileage

    By Butch59, May 27, 2022
    • 2 replies
    • 947 views
    • 
    • Grumpy Bear
    • May 29, 2022

24. Headlight harness losing voltage

    By Denali2500Indy, August 29, 2018
    • 2 replies
    • 3.5k views
    • 
    • Digdanger
    • May 7, 2022

25. 6L80 Transmission unusual behavior?

    By rviscuso, February 8, 2022   

    • 6l80
    • transmission
    • (and 4 more)

      Tagged with:

      • 6l80
      • transmission
      • lock
      • unlock
      • tcc
      • lurching
    • 13 replies
    • 11.6k views
    • 
    • rviscuso
    • May 3, 2022

26. Radio fan stays on

    By Andrew18, April 28, 2022   

    • Radio
    • duramax
    • (and 6 more)

      Tagged with:

      • Radio
      • duramax
      • 2018
      • Silverado
      • head unit
      • fan
      • noise
      • after key off
    • 0 replies
    • 1.3k views
    • 
    • Andrew18
    • April 28, 2022