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Troubleshooting, Warranty & Recalls

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

3,464 topics in this forum

  1. No power to trailer lights 1 2 3 4 7

    By P Bolton,
    • 97 replies
    • 256.1k views

  2. Lane Keep Assist "Unavailable" 1 2 3 4 7

    By tech2therescue,   
    • 96 replies
    • 90.7k views

  3. Radio keeps rebooting 1 2 3 4 7

    By Todd Richert,   
    • 93 replies
    • 89.8k views

  4. Shift to park message after shut down. 1 2 3 4 6

    By Unclebud87,
    • 87 replies
    • 215k views

  5. My cold start knock/tick issues continues "no repair available" 1 2 3 4 6

    By ct_corey,
    • 87 replies
    • 28.3k views

  6. Dead battery and check engine light 1 2 3 4 6

    By 2020gmc,   
    • 83 replies
    • 113.8k views

  7. 2019 Trail Boss LT brake noise 1 2 3 4 6

    By Booger T,
    • 82 replies
    • 64.2k views

  8. Low RPM shake/ vibration?. stutter? 1 2 3 4 6

    By Dersch,
    • 82 replies
    • 111k views

  9. Parking (emergency) brake coming on by itself? 1 2 3 4 6

    By Controller23,
    • 75 replies
    • 96k views

  10. Uncomfortable driver seat in AT4 with vibrating seats inserts (safety package) 1 2 3 4 5

    By SierraAT4,
    • 74 replies
    • 38.8k views

  11. Scrubbing/Rubbing Noise from rearend when first moving after sitting a day or so 1 2 3 4 5

    By HiyoSilverardo_Away,
    • 73 replies
    • 65.5k views

  12. 5.3L 8 Speed Shudder (I know I searched) 1 2 3 4 5

    By HapaTrailBoss,
    • 72 replies
    • 17.9k views

  13. PIT5793- No wifi, apps, internet connection... 1 2 3 4 5

    By SILVER SLED,
    • 72 replies
    • 37.2k views

  14. Small Pinion Seal Leak = Replace Differential! 1 2 3 4 5

    By DougFL,   
    • 68 replies
    • 49.7k views

  15. 1 quart of oil every 2000 miles 1 2 3 4 5

    By Mikeeeeeee,
    • 68 replies
    • 23.7k views

  16. OIL , what is a favorite oil on the forum for the mighty 6.2 V8 1 2 3 4 5

    By Big_Kahuna,
    • 67 replies
    • 24.5k views

  17. chirping noise ,still not addressed 1 2 3 4 5

    By 6.2 man,
    • 66 replies
    • 38.8k views

  18. 2020 3.0 Diesel Engine fan Racing (Diesel particulate filter?) 1 2 3 4 5

    By Truckasaurus,
    • 65 replies
    • 27.2k views

  19. 2020 AT4 6.2 towed 1 2 3 4 5

    By calgator73,
    • 65 replies
    • 10.9k views

  20. 2019 Trail Boss Infotainment issues 1 2 3 4 5

    By tommy2wheels,   
    • 65 replies
    • 29.1k views

  21. Service Parking Brake 1 2 3 4 5

    By Bad_Brad,
    • 64 replies
    • 244.1k views

  22. Intermittent Radio/Camera Problems 1 2 3 4 5

    By Cmillerjr,
    • 63 replies
    • 47.2k views

  23. Beware of Cold Air Intakes 1 2 3 4 5

    By Red6.2,
    • 63 replies
    • 14.6k views

  24. Bed misaligned 1 2 3 4 5

    By Chambo,
    • 62 replies
    • 40k views

  25. AT4 service brake assist 1 2 3 4 5

    By Shaker,
    • 62 replies
    • 38.3k views
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