Transmission Control Module (TCM) faults are not unknown on these early Mazda 3s. Symptoms usually involve erratic shifting, a failure to select gear at all and having the car go into limp-home mode.

GM has issued a voluntary emission recall for certain units of the 2020 and 2021 C8 Corvette Stingray due to a problem with the Transmission Control Module (TCM). The problem: Affected TCM’s may ...

GM has issued a product recall for certain examples of 2021 and 2022 Chevy LCF or Low Cab Forward 3500 and 4500 vehicles due to an issue related to the Transmission Control Module (TCM) of the GM MYD ...

General Motors' 8-speed transmissions are known to shake while accelerating, produce rough shifts going into second gear, and ...