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Troubleshooting, Warranty & Recalls

The help desk. Diagnose Google Built-In glitches, transmission shudder, check engine lights, and discuss warranty claims.

3,465 topics in this forum

  1. Anti-rattle tubes?

    By matt grz,
    • 5 replies
    • 940 views

  2. Downshifting issue with 19’ Z71 1 2 3 4

    By Chico210,
    • 58 replies
    • 30.9k views

  3. squeal and or squeak noise coming drivetrain at any speed

    By Fubar12,
    • 3 replies
    • 3k views

  4. 2019 6.2L 10 Speed Ongoing Engine - Transmission Communication Issues

    By Hammerman0206,
    • 3 replies
    • 3.4k views

  5. Vibration noise in cab @ HWY speed with strong cross wind

    By pwayne,
    • 0 replies
    • 1.5k views

  6. Im really trying to like this truck.. New problem, parking sensors

    By RST-stan,
    • 14 replies
    • 2.7k views

  7. Intellibeam and Lane Keep Assist Not Working 1 2

    By sfarson,
    • 22 replies
    • 39.1k views

  8. 2020 Sierra 1500 6.2L shudder....

    By shadysneed,
    • 3 replies
    • 4.2k views

  9. Possible rust rot out spot

    By RPaul,
    • 2 replies
    • 1.4k views

  10. Squeaky AT4 suspension front/back... anyone else?

    By mattsvtcobra,
    • 5 replies
    • 7.8k views

  11. Transmission

    By Carroll24,
    • 3 replies
    • 1k views

  12. 2020 SLT brake pedal vibration & AC noise HELP

    By Sierra20-20,
    • 5 replies
    • 7.2k views

  13. Rear end jumping going over a big bump 1 2

    By cajunduck1,
    • 18 replies
    • 13k views

  14. 2020 3.0l Duramax with P200A

    By davidr83,
    • 3 replies
    • 5.1k views

  15. Rear camera too bright? 1 2 3 4

    By Bobv07662,
    • 49 replies
    • 52.8k views

  16. Service break monitor system annnnnnnd

    By Fowler,
    • 8 replies
    • 1.8k views

  17. Lm2 blue smoke on cold start 1 2

    By kervin Morales,
    • 15 replies
    • 7.6k views

  18. U0101 / U0129 Codes and CEL 1 2 3

    By relevante,
    • 40 replies
    • 73.2k views

  19. Service break monitor system annnnnnnd

    By Fowler,
    • 0 replies
    • 539 views

  20. 2020 Trailboss tailgate molding cap removal

    By Shaun Kleinheksel,
    • 0 replies
    • 4.1k views

  21. Onstar connection unavailable message

    By Hoomsie,
    • 3 replies
    • 25.7k views

  22. Bad Seat Control Module

    By michaeldc46,
    • 2 replies
    • 3.6k views

  23. Antenna plug removal

    By TCL1962,
    • 1 reply
    • 623 views

  24. Fuel Tank/ Gauge Issue

    By cpttimerestraint,
    • 6 replies
    • 16.8k views

  25. Rear cross traffic alert radar

    By Aussie87,
    • 2 replies
    • 4.8k views

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