Control module: softwareRecall 24V-839 · Chevrolet and GMC vehicles
General Motors, LLC recall 24V-839 covers 77,824 Chevrolet and GMC vehicles for a control module: software problem, reported to NHTSA on November 7, 2024. The manufacturer's latest report (2026 Q3) shows 71% of affected vehicles repaired.
Source: NHTSA recall 24V839000 and manufacturer quarterly reports. Started by the manufacturer.
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.
Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.
How fast cars are being fixed
71%repaired
Share of affected vehicles repaired in each quarterly report the manufacturer filed with NHTSA. 778 vehicles were listed as unreachable.