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.

Your 68RFE Cummins is a great jack-of-all-trades transmission that might need tuning to get the most out of it while helping ...

GM has issued a recall for certain units of the 2020 and 2021 Corvette C8 Stingray due to a problem with the Transmission Control Module (TCM).

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.