Filed by General Motors, LLC on November 7, 2024; 4 model-year listings affected.
Power train: automatic transmission, control module, software
NHTSA campaign 24V839000 · reported November 7, 2024 · General Motors, LLC · 77,824 vehicles potentially affected
- The problem
- General Motors, LLC (GM) is recalling certain 2022-2023 Chevrolet Express and GMC Savana vehicles. Incorrect software in the transmission control module (TCM) may result in harsh shifting, reduced power, unintended deceleration, rear wheel lockup, or cause the vehicle to move in an unintended direction.
- The risk
- Rear wheel lock-up or moving in an unintended direction can increase the risk of a crash.
- The fix
- Dealers will update the transmission control module software calibration, free of charge. Owner notification letters were mailed December 9, 2024. Owners may contact GM customer service at 1-888-988-7267, Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782. GM's number for this recall is N242471620.
Whether a particular car is included depends on its build date: check its VIN at nhtsa.gov/recalls.