NHTSA recall 21V346000
Engine and engine cooling › Engine › Engine control module (ecu/ecm) › Software
Chevrolet 6500 and 1 more
Reported May 13, 2021196 vehicles affectedGeneral Motors, LLCMaker’s number N202325530
The defect
General Motors, LLC (GM) is recalling certain 2019-2020 Chevrolet 6500HD vehicles. The engine control module (ECM) was calibrated incorrectly, allowing the vehicle to exceed the tires' maximum speed rating of 75 mph.
The risk
Tire failure can occur if the vehicle speed exceeds the maximum tire speed rating, increasing the risk of a crash.
The remedy
Dealers will update the ECM software, free of charge. Owner notification letters were mailed June 7, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N202325530.