GM has issued a recall for certain units of the 2021 and 2022 Chevy LCF 3500/4500 models due to an issue with improper Transmission Control Module programming.

Read the Chevy High-Performance tech article on How to Program an OBD-II Powertrain Control Module.

GM has begun a customer satisfaction program to address an issue with the transmission range control module in certain 2021 model year Chevy Bolt EV vehicles.

"When GM builds the 6L80E at the factory, it installs a control module directly to the valve body. It houses all the pressure control solenoids, shift solenoids, and the transmission control ...