His truck would suddenly start riding extremely rough, like he was constantly in gravel. He took his Silverado to the dealership multiple times in an attempt to diagnose and correct the problem.

More GM truck owners are reaching out to GM Authority stating that they've been waiting weeks and possibly even months for a fix, with no clear timeframe.

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.

As a remedy, car dealers will install new transmission control module software for free, according to GM. The new software will monitor the valve and detect excess wear 10,000 miles before the ...

GM says the issue can be fixed by installing new software for the transmission control module. There's a potential problem with the transmission control valve on certain diesel-powered GM full ...

Owners will need to drop their Chevy, GMC or Caddy down to their local dealer who will upgrade the transmission control module software.

General Motors will recall 77,824 vehicles as incorrect software in the transmission control module could cause the vehicle to move in an unintended direction, increasing the risk of a crash, the ...

GM instructed its technicians that affected Corvettes required a Transmission Control Module software update, specifically in the presence of two Diagnostic Trouble Codes.

Another major GM recall affecting diesel-equipped pickup trucks and SUVs involves a transmission control valve that may fail.

General Motors is recalling certain 2020-2022 GMC, Cadillac and Chevrolet models that may experience rear wheel lock up due faulty transmission valves.

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