Troubleshooting & Recalls

744 topics in this forum

1. 65MPH vibration

   By Louis A Gentile Piano, October 11, 2020
   • 1 reply
   • 1.5k views
   • 
   • CamGTP
   • October 12, 2020

2. 6L80 Transmission unusual behavior?

   By rviscuso, February 8, 2022   

   • 6l80
   • transmission
   • (and 4 more)

     Tagged with:

     • 6l80
     • transmission
     • lock
     • unlock
     • tcc
     • lurching
   • 13 replies
   • 23k views
   • 
   • rviscuso
   • May 3, 2022

3. 7 way plug issue w/ 'Service Trailer Brake' message

   By SophieP, June 8, 2018
   • 12 replies
   • 4.8k views
   • 
   • redwngr
   • July 26, 2018

4. 8 Spd Tranny

   By James Bollier, December 9, 2017   

   • shift problems
   • 3 replies
   • 1.1k views
   • 
   • SierraHD17
   • December 9, 2017

5. A mysterious woob woob sound at 30 to 50 PMH

   By JamGear, November 25, 2020   

   • pulsing
   • woob
   • (and 2 more)

     Tagged with:

     • pulsing
     • woob
     • rotational
     • trasmission noise
   • 2 replies
   • 1.3k views
   • 
   • JamGear
   • December 4, 2020

6. A/C issue

   By usgregp, July 31, 2023
   • 2 replies
   • 1.4k views
   • 
   • usgregp
   • July 31, 2023

7. AC conked out, particulars and prices to repair

   By afmayer, June 10, 2020   

   • AC
   • 2500HD
   • (and 2 more)

     Tagged with:

     • AC
     • 2500HD
     • Sierra
     • GMC
   • 3 replies
   • 1.6k views
   • 
   • afmayer
   • June 19, 2020

8. After 30,000 miles I may have a vibrator 2500 :( 1 2

   By fjtort2, October 23, 2016
   • 15 replies
   • 3.9k views
   • 
   • AndysZ71
   • October 31, 2016

9. 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
   • 1.2k views
   • 
   • asilverblazer
   • August 3, 2022

10. After market backup camera help

    By Weller, June 30, 2015   

    • backup camera
    • 4 replies
    • 4.9k views
    • 
    • redtazdog
    • July 17, 2015

11. After new battery, driver's window won't work.

    By Dennis Hoover, March 18, 2022
    • 0 replies
    • 937 views
    • 
    • Dennis Hoover
    • March 18, 2022

12. Air Bag Light

    By tthomas, January 10, 2016
    • 0 replies
    • 1.1k views
    • 
    • tthomas
    • January 10, 2016

13. Air condition condenser issue

    By Frank C, August 27, 2018
    • 0 replies
    • 1.6k views
    • 
    • Frank C
    • August 27, 2018

14. Air Conditioning Issue

    By DMAXNAZ, February 27, 2018
    • 5 replies
    • 1.4k views
    • 
    • DMAXNAZ
    • March 5, 2018

15. Air intake

    By phfkef, August 30, 2018
    • 2 replies
    • 773 views
    • 
    • Sierra Dan
    • August 30, 2018

16. Airbag Software Recall

    By DMAXNAZ, September 15, 2016
    • 10 replies
    • 2.8k views
    • 
    • JohnMD
    • November 17, 2016

17. Aircharge for 2016 Silverado Not working with IPhone X

    By jammerissweet, July 6, 2018   

    • aircharge
    • iphone x
    • (and 2 more)

      Tagged with:

      • aircharge
      • iphone x
      • cellphone charging
      • 2016 aircharge
    • 1 reply
    • 721 views
    • 
    • Tleesmith14
    • July 7, 2018

18. Alignment Issue

    By DMAXNAZ, March 18, 2016
    • 12 replies
    • 17.3k views
    • 
    • DMAXNAZ
    • March 29, 2016

19. all service lights come on / tach and speedo stop working

    By bababouy, June 18, 2017
    • 2 replies
    • 1.6k views
    • 
    • bababouy
    • June 18, 2017

20. All warning lights on

    By DBeau, March 15, 2019
    • 9 replies
    • 26.3k views
    • 
    • GMCustomerService
    • June 13, 2024

21. Allison fluid low

    By donaldusmc2003, March 30, 2016
    • 2 replies
    • 1.9k views
    • 
    • donaldusmc2003
    • April 4, 2016

22. Allison shift problem

    By calgator73, June 26, 2017
    • 6 replies
    • 8.1k views
    • 
    • SMiller
    • July 10, 2017

23. Allison transmission shudder 4th to 5th gear! Any thoughts?

    By Big ~O~, January 26, 2017
    • 5 replies
    • 9.1k views
    • 
    • Duraconcern
    • December 3, 2019

24. Alternator voltage

    By Tankmatt, March 9, 2019
    • 4 replies
    • 9.1k views
    • 
    • redwngr
    • March 9, 2019

25. Ambient Air Sensor Troubleshooting

    By Mdahn0331, November 10, 2021
    • 3 replies
    • 5.9k views
    • 
    • newdude
    • November 12, 2021