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.

GM has issued a service update to address a problem related to the Transmission Control Module in certain 2020 and 2021 model-year C8 Corvette Stingray models.

"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 ...