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.

A “Check Engine” light on your dashboard could mean anything from a loose gas cap to a wallet-destroying repair in the offing. For [Dean Segovis], his CEL was indicating a fairly serious condition: a ...

Swapping an automatic transmission for a three-pedal manual transmission has been a modification for a long time. Whether it’s for maximizing enjoyment behind the wheel, upgrading to a sturdier ...

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 ...

The problem: Drivers may note faulty shift patterns along with transmission fault indicator messages on the dash. This may be due to faulty automatic transmission fluid or the transmission control ...