Troubleshooting, Warranty & Recalls

918 topics in this forum

1. 2020 3500HD - dead fuel pump module

   By greatmizzou, December 30, 2025
   • 3 replies
   • 912 views
   • 
   • greatmizzou
   • April 26

2. Help replacing brakes on the 2020+ models 1 2

   By UltimateToolReviews, April 15
   • 28 replies
   • 2.1k views
   • 
   • bruceb58
   • April 26

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

   By BB_Mike, February 2
   • 4 replies
   • 1.2k views
   • 
   • jeetS
   • April 17

4. Rear Window Leak and GM warranty warning 1 2

   By bowtie2007, March 18, 2022
   • 28 replies
   • 57.3k views
   • 
   • mrjulian416
   • March 26

5. Hose leak... transmission cooler hose???

   By darleyhavidson, March 3
   • 10 replies
   • 919 views
   • 
   • Another JR
   • March 25

6. 2021 2500HD A/C stops blowing cold at highway speeds

   By summers, July 7, 2024
   • 5 replies
   • 3.7k views
   • 
   • Ottavio
   • March 24

7. Trailer Light Control

   By Hardhands85, March 16
   • 7 replies
   • 982 views
   • 
   • chris21
   • March 19

8. Infotainment audio cuts out.

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

9. Codes will not clear after changing batteries

   By Jay spence, February 21
   • 1 reply
   • 465 views
   • 
   • GMCustomerService
   • March 12

10. 2025 GMC 2500 Front Axle seals leaking

    By jadennis, March 9
    • 4 replies
    • 564 views
    • 
    • Pryme
    • March 11

11. 2022 HD High Country 8 inch Infotainment System No Sound

    By Tom Brizzi, March 11
    • 0 replies
    • 262 views
    • 
    • Tom Brizzi
    • March 11

12. Camera selection freezing

    By davidm767, March 10
    • 0 replies
    • 208 views
    • 
    • davidm767
    • March 10

13. Title: [OFFICIAL DISCUSSION] Recall 26V129: 2025-2026 Silverado & Sierra 3500HD Gas - Fuel Gauge & Stalling Issue

    By Zane, March 9
    • 0 replies
    • 850 views
    • 
    • Zane
    • March 9

14. 2023 3500 Sierra Roof Leaks

    By Hawkens999, March 9
    • 0 replies
    • 334 views
    • 
    • Hawkens999
    • March 9

15. 2024 High Country-No Audio

    By CRApex, October 19, 2023
    • 12 replies
    • 38.8k views
    • 
    • Tom Brizzi
    • March 9

16. Blind hole bearing remover - Transmission Filter Seal Removal???

    By darleyhavidson, March 3
    • 4 replies
    • 661 views
    • 
    • AndrewF
    • March 3

17. The "119-Inch" HD Trailer Calibration Bug

    By Zane, March 3
    • 0 replies
    • 374 views
    • 
    • Zane
    • March 3

18. Problems after update last weekend

    By Matt001, February 11
    • 5 replies
    • 850 views
    • 
    • GMCustomerService
    • February 26

19. Error code u18dc post battery failure

    By MikeMikeMike, July 1, 2024
    • 3 replies
    • 8.7k views
    • 
    • MannyPaz
    • February 18

20. Dash buzzing at idle after cold start

    By Njmurvin, December 2, 2020
    • 10 replies
    • 4.1k views
    • 
    • AndrewF
    • February 12

21. TPS sensor wiring supports

    By RobsV20, February 9
    • 3 replies
    • 338 views
    • 
    • Crazy Canuck
    • February 12

22. Side camera calibration to align with front and back

    By Jim-GA, July 27, 2023
    • 9 replies
    • 20.4k views
    • 
    • BainMan
    • February 9

23. Miserable wiper design in winter

    By BlueFox, January 25, 2025
    • 5 replies
    • 2.7k views
    • 
    • Jimjet
    • February 6

24. Automatic Highbeam / LDW Issues Only at Night

    By crspangenberg, September 25, 2024
    • 5 replies
    • 2.2k views
    • 
    • ShotgunZ71
    • February 5

25. Are people still getting the low speed brake squeal with the latest factory pads? 1 2

    By mrjulian416, July 8, 2024
    • 21 replies
    • 17.7k views
    • 
    • A G 73
    • February 5