General Motors has issued a service update to address a problem related to the Transmission Control Module in certain examples of the 2020 and 2021 model-year C8 Corvette Stingray. The problem: in ...

A significant number of GM truck and SUV owners remain sidelined due to ongoing delays tied to a backorder on transmission valve bodies, a critical component of the automatic transmission system. At ...

If you're a control freak, late-model electronic transmissions are just what you need to modernize your classic car, and if you decide to go that route, a transmission control module is a must-have.