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What 20 owners told NHTSA about the 2026 Ram 3500 Cab Chassis

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (20)Crash / fire / injury (1)Electrical system (14)Brakes (9)Speed control (4)Driver assistance (3)Backup camera & sensors (2)Engine (2)Tires (2)Lane Departure (1)Lights (1)Transmission & drivetrain (1)

1 of 20 complaints match · Transmission & drivetrain · clear filters

Jan 8, 2026BrakesTransmission & drivetrainEngine

The contact owns a 2026 Ram 3500. The contact stated that while driving at an undisclosed speed, the check engine, 4WD, ABS, park sensors, and several other unknown warning lights illuminated. The vehicle was taken to the dealer, who replaced the speed sensor for the rear wheels; however, the failure persisted, and the transmission failed to recognize that the gear selector was in park(P). Roadside Assistance arrived and unplugged the battery cables to turn off the engine. The vehicle was towed to the dealer and was waiting for engineers to diagnose the vehicle. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 458.

NHTSA ODI 11709697

Working with the data? Download all 20 complaints as CSV · fetched from NHTSA July 23, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2026 Ram 3500 Cab Chassis verdict →