Troubleshooting, Warranty & Recalls

3,465 topics in this forum

1. Trailer connected, but no trailer connected.

   By WayneE, July 2, 2022
   • 7 replies
   • 13k views
   • 
   • BeeH
   • June 24, 2023

2. exhaust smell when reversing

   By briansol, January 9, 2023
   • 7 replies
   • 2.6k views
   • 
   • GMCustomerService
   • January 20, 2023

3. Reverse signal

   By Andrew Thompson, September 20, 2020
   • 7 replies
   • 12.6k views
   • 
   • redwngr
   • September 21, 2020

4. UCA recommendations and advice.

   By Tom Hoshock, June 10, 2023
   • 7 replies
   • 1.9k views
   • 
   • newdude
   • June 12, 2023

5. 2021 Custom Trail Boss 5.3L L82 6speed Misfires and Dash lights

   By CSSM2021, October 30, 2021
   • 7 replies
   • 5.5k views
   • 
   • Z45
   • November 22, 2021

6. Infotainment Screen Lighting Issues Anyone Else?

   By ILSilverado, June 21, 2019
   • 7 replies
   • 882 views
   • 
   • DanTN
   • October 15, 2019

7. Oil plug

   By Minnvmax, March 7, 2020
   • 7 replies
   • 10.4k views
   • 
   • Black02Silverado
   • May 11, 2020

8. Flat towing

   By Glenn Dausch1, May 23, 2025
   • 7 replies
   • 4.6k views
   • 
   • redwngr
   • May 24, 2025

9. Nav Button on a non-Nav unit? RST

   By Chambo, June 13, 2019
   • 7 replies
   • 3k views
   • 
   • MDSilveradoGuy
   • June 17, 2019

10. Digital Rear view mirror in 2024 LTZ

    By rrmccabe, July 10, 2024
    • 7 replies
    • 6.6k views
    • 
    • rrmccabe
    • July 14, 2024

11. Tailgate button/rear view camera plastic housing falls out

    By romeactual, August 11, 2020
    • 7 replies
    • 4.2k views
    • 
    • Mike Duhaime
    • May 21, 2025

12. Cleaning wheels

    By L87Powered, February 20, 2020
    • 7 replies
    • 8.6k views
    • 
    • Vicarod
    • March 7, 2020

13. Towing/Hauling

    By SBoyne, September 15, 2019
    • 7 replies
    • 1.4k views
    • 
    • bshort
    • September 18, 2019

14. Dic question

    By Wilderydude83, January 25, 2020
    • 7 replies
    • 674 views
    • 
    • JimCost2014
    • January 25, 2020

15. Gas pedal clicking when depressed

    By Kevin Medeiros, September 13, 2020
    • 7 replies
    • 3.6k views
    • 
    • 15 Z71
    • February 28, 2025

16. Android Auto issues?

    By TrailBossMike, October 10, 2023
    • 7 replies
    • 14.3k views
    • 
    • TrailBossMike
    • November 20, 2023

17. Bought my used 2020 Sierra 1500 yesterday, setup the MyGMC app today and saw these diagnostics.

    By Kyle.B, May 13, 2022
    • 7 replies
    • 6.2k views
    • 
    • Rocz3cqg
    • May 21, 2022

18. New SD card message

    By mfd186, October 19, 2021   

    • CUJ7044
    • 7 replies
    • 2.7k views
    • 
    • Gmoeller
    • October 31, 2021

19. Instrument Cluster and Climate Control issues

    By John Balways, November 22, 2018   

    • cluster
    • instrument
    • (and 3 more)

      Tagged with:

      • cluster
      • instrument
      • climate
      • door
      • hud
    • 7 replies
    • 15.9k views
    • 
    • John Balways
    • December 3, 2018

20. High pitch whine when towing

    By Vigilante375, September 13, 2020
    • 7 replies
    • 5k views
    • 
    • 21GMC
    • September 6, 2023

21. Weird noise whenever driving

    By DEVV08, September 26, 2022
    • 7 replies
    • 1.7k views
    • 
    • LTgone
    • October 13, 2022

22. Oil Pressure Gauge Reading at Idle

    By forest, November 7, 2023
    • 7 replies
    • 5.4k views
    • 
    • bobder41
    • November 9, 2023

23. Yikes, paint peeling off my 2020 trail boss nerf bar already

    By wacnstac, October 7, 2021
    • 7 replies
    • 5.8k views
    • 
    • shakenfake
    • October 7, 2021

24. Indicator lights

    By Htown_LTZ, July 16, 2021
    • 7 replies
    • 1.6k views
    • 
    • Transient
    • July 18, 2021

25. 2021 Sierra AT4 - heated mirrors?

    By GullLakeMi, November 1, 2021
    • 7 replies
    • 22.8k views
    • 
    • JimCost2014
    • November 2, 2021