Comparing features of the latest stand-alone automatic transmission control modules. Which one will work best for your transmission? Jeff Smith breaks it down.

GM has begun a customer satisfaction program to address an issue with the transmission range control module in certain 2021 model year Chevy Bolt EV vehicles.

See More Service Bulletins Corrective action: Dealers will reprogram the transmission control module with an updated program that eliminates the condition.

A problem with control module software that can fail to detect transmission valve problems has led to certain units of the 2021 Cadillac Escalade and 2021 Cadillac Escalade ESV being included in a ...