Troubleshooting, Warranty & Recalls

3,465 topics in this forum

1. Radio screen blackout

   By JElizaldi, July 27, 2023
   • 2 replies
   • 1.1k views
   • 
   • JElizaldi
   • July 28, 2023

2. 2020 gmc denali hd

   By Tom Wiltrout, December 8, 2021   

   • Diesel 2500
   • 1 vent no heat
   • 2 replies
   • 5.8k views
   • 
   • eppieguy
   • December 9, 2021

3. clunk/poping in front end

   By jlivy, September 30, 2024
   • 2 replies
   • 844 views
   • 
   • jlivy
   • October 3, 2024

4. Rear bumper step pad (not corner step) replacement

   By mrfrede62, June 8, 2023
   • 2 replies
   • 2.4k views
   • 
   • Sneaky pete
   • June 16, 2023

5. 2023 Noise- Possible brake issue

   By Jimbeau, January 26
   • 2 replies
   • 361 views
   • 
   • Jimbeau
   • January 26

6. 2020 Fuel System Recall

   By MannyE, February 25, 2020
   • 2 replies
   • 8.5k views
   • 
   • greco2003
   • February 25, 2020

7. 3.0 Duramax P204D

   By bmcbass, March 1, 2021
   • 2 replies
   • 3.4k views
   • 
   • Rubyralph
   • March 5, 2021

8. 2021 Sierra tail light wiring

   By thavngr98, January 27, 2023
   • 2 replies
   • 461 views
   • 
   • thavngr98
   • January 29, 2023

9. Issues with remotes not locking/unlocking and very poor radio reception.

   By beanwagon, March 7, 2023
   • 2 replies
   • 804 views
   • 
   • snowblind
   • March 19, 2023

10. 2019 AT4 shutting off when going from drive to reverse

    By Northeast4050, May 30, 2019
    • 2 replies
    • 1.8k views
    • 
    • Paintor
    • May 30, 2019

11. Any Intermittent lifter issues?

    By Billet Bowtie, May 10, 2022
    • 2 replies
    • 964 views
    • 
    • Billet Bowtie
    • May 15, 2022

12. 2023 Silverado HC issue when playing a story

    By TBSteck, July 28, 2023
    • 2 replies
    • 514 views
    • 
    • TBSteck
    • July 28, 2023

13. Passenger Window not automatic..???

    By Fungui1972, May 11
    • 2 replies
    • 383 views
    • 
    • newdude
    • May 11

14. Live Traffic Issues 2019 AT4

    By Jmcab, March 26, 2020
    • 2 replies
    • 1.6k views
    • 
    • Jmcab
    • March 29, 2020

15. Vent Actuator reset procedure?

    By lennybg, November 24, 2025
    • 2 replies
    • 960 views
    • 
    • lennybg
    • November 24, 2025

16. Clunking noise coming from the front end and a little steering wheel vibration

    By Anthony Morton, July 6, 2023
    • 2 replies
    • 4k views
    • 
    • Gangly
    • July 10, 2023

17. “Shift to Neutral & Press Start” while driving

    By tcafranz, March 9, 2025   

    • loss of power
    • stall
    • (and 14 more)

      Tagged with:

      • loss of power
      • stall
      • P16A7
      • Ignition
      • Relay
      • Feedback
      • Circuit
      • Neutral
      • Shift
      • 2019
      • 2020
      • Late model
      • New model
      • Sierra
      • Pulsar
      • LT
    • 2 replies
    • 6.6k views
    • 
    • tcafranz
    • March 21, 2025

18. Upper Steering Shaft replacement

    By jeez, February 5, 2021
    • 2 replies
    • 3.2k views
    • 
    • jeez
    • February 5, 2021

19. Delete

    By JPark, May 13, 2024
    • 2 replies
    • 896 views
    • 
    • JPark
    • May 13, 2024

20. 2020 AT4 6.2L 10 speed problem

    By Scott66s, April 2, 2020
    • 2 replies
    • 16.4k views
    • 
    • GMCustomerService
    • April 16, 2020

21. Ambient temperature problem

    By Maxwell Petersen, March 8, 2023
    • 2 replies
    • 6.3k views
    • 
    • silveradosid
    • March 8, 2023

22. New Key To Program 2019 Keyless Start

    By mike in san dimas, October 29, 2020
    • 2 replies
    • 919 views
    • 
    • ram1067
    • May 31, 2021

23. Cluster full of lights

    By Frustrated1, April 25, 2025
    • 2 replies
    • 1.1k views
    • 
    • Frustrated1
    • May 1, 2025

24. 2023 GMC Sierra Elevation Surging.

    By TTJ, June 11, 2024
    • 2 replies
    • 1.3k views
    • 
    • TTJ
    • June 12, 2024

25. Infotainment update

    By Julio13, June 5, 2020
    • 2 replies
    • 1.7k views
    • 
    • steve841
    • June 5, 2020