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.

Faulty transmission control valve can fail and cause rear wheels to lock up, increasing risk of crash, according to General Motors.

2012 Audi A6 2013 Audi A6 2014 Audi A6 See More Service Bulletins Corrective action: Dealers will either flush the auto transmission fluid and/or replace the transmission control module.

Some units of the 2021 Corvette Stingray may require a transmission control module reprogramming, per a new GM service update.

According to NHTSA, the recall covers 552,188 of the pickups due to a loss of signal between the transmission output shaft speed sensor and the powertrain control module causing the truck to ...

To convince the transmission control module that a working automatic was still installed and clear the fourteen-odd diagnostic codes, [Dean] put together a block of eight common automotive relays.