Troubleshooting, Warranty & Recalls

911 topics in this forum

1. Do I need to get the undercoat treated?

   By GMC4Zee, September 19, 2021
   • 4 replies
   • 2.3k views
   • 
   • dquest
   • December 27, 2021

2. MultiPro Tailgate Alignment - Upper Tailgate

   By Rexy, February 11, 2022
   • 4 replies
   • 4.8k views
   • 
   • newdude
   • February 16, 2022

3. Clicking/rattle noise under/behind steering column 2022 Silverado 2500HD

   By BasikLiberty, May 9, 2025
   • 4 replies
   • 1.1k views
   • 
   • BasikLiberty
   • May 11, 2025

4. Transmission running hot

   By RickeyS, December 29, 2019
   • 4 replies
   • 3k views
   • 
   • Praedator
   • January 7, 2020

5. HVAC "is this normal" question...

   By mrjulian416, November 2, 2023
   • 4 replies
   • 1.2k views
   • 
   • Hoginedgewood
   • November 25, 2023

6. Overhead console

   By TheGeek, December 28, 2020
   • 4 replies
   • 1.6k views
   • 
   • redwngr
   • December 29, 2020

7. Infotainment audio cuts out.

   By CRApex, March 13
   • 4 replies
   • 554 views
   • 
   • Capt Bob
   • March 15

8. AC 3-10min Delay on cold start - NIGHTMARE ISSUES!!! (2020-2023 trucks)

   By UltimateToolReviews, May 19
   • 4 replies
   • 625 views
   • 
   • UltimateToolReviews
   • May 30

9. Can I temporarily disable hill start assist?

   By MissouriMiner, January 16, 2021
   • 4 replies
   • 10.4k views
   • 
   • flattop
   • January 16, 2021

10. Should I buy a bi-directional scan tool? (plus J2534 and TDS)

    By BB_Mike, February 2
    • 4 replies
    • 954 views
    • 
    • jeetS
    • April 17

11. Clunk in front end

    By Tahoe555, September 20, 2020
    • 4 replies
    • 1.5k views
    • 
    • Tahoe555
    • September 21, 2020

12. Damaged Left Rear Bumper & Left Rear Quarter Panel - Repair Questions

    By SoCal Angler, May 25
    • 4 replies
    • 431 views
    • 
    • GMCustomerService
    • June 15

13. Cabin Temperature Control Issues?

    By AndrewF, October 3, 2025
    • 4 replies
    • 555 views
    • 
    • UltimateToolReviews
    • November 6, 2025

14. USB/iPod

    By Utah_ee, November 16, 2020
    • 4 replies
    • 9.3k views
    • 
    • sdelam
    • November 19, 2020

15. High-pitched noise when accelerating/decelerating at low RPMs (2024 Silverado 2500)

    By switters, August 25, 2024
    • 4 replies
    • 3.3k views
    • 
    • Tuishimi
    • April 5, 2025

16. TPMS question

    By Justin w, November 26, 2021
    • 4 replies
    • 946 views
    • 
    • redwngr
    • November 26, 2021

17. 2022 Sierra HD 6.6 Gas Engine Spark Knock/Ping

    By ak503, April 28, 2022
    • 4 replies
    • 6.8k views
    • 
    • BuckWallace
    • May 14, 2024

18. Trailer 7 pin plug. What makes the truck register that there is a trailer?

    By Joseph DeMeyer, September 14, 2024
    • 4 replies
    • 2.6k views
    • 
    • 64BAwagon
    • September 24, 2024

19. Brake Noise

    By kylant, September 23, 2021
    • 4 replies
    • 12.2k views
    • 
    • sweatandsteel
    • October 5, 2021

20. "Reduced Engine Power" - P228C

    By Marshy, February 27, 2025
    • 4 replies
    • 6.8k views
    • 
    • Marshy
    • February 28, 2025

21. Rear Cameras Dark At all times

    By Byrds8, December 14, 2025
    • 4 replies
    • 527 views
    • 
    • Another JR
    • December 15, 2025

22. Steering sound at idle normal?

    By RJ2500, March 16, 2022
    • 4 replies
    • 4.4k views
    • 
    • RJ2500
    • March 16, 2022

23. 2020 gmc 3500 Denali order

    By Mm298, February 21, 2020
    • 4 replies
    • 905 views
    • 
    • PIP_AT4
    • March 9, 2020

24. Apple Car Play

    By Rob Sarabin, December 2, 2022
    • 4 replies
    • 4.1k views
    • 
    • newdude
    • March 15, 2023

25. 2020 2500HD Silverado Feels like its surging when towing uphill

    By Addison Reeder IV, November 9, 2020
    • 4 replies
    • 3k views
    • 
    • kylant
    • November 20, 2020