The 8-speed GM transmission has often been criticized for exhibiting shuddering and harsh shifts, but a new fluid flush may fix the issue outright.

General Motors. That case involves 8L vehicles made after March 1, 2019, through the model year 2022, when GM replaced the automatic transmission fluid that caused the shudder problem.

The lawsuit specifically applies to vehicles that are equipped with GM’s 8L90 or 8L45 8-speed automatic transmissions made between 2015 and March 1, 2019.

A class-action GM transmission lawsuit hit a snag after a judge dismissed certain implied warranty claims made in the filing for plaintiffs in certain states.

General Motors persuaded a federal appeals court on Friday to decertify a class action seeking to hold the automaker liable for knowingly selling about 800,000 cars, trucks and SUVs with faulty ...

Starting with the 2006 model year, General Motors is changing their automatic transmission fluid for all Hydra-Matic transmissions. The new fluid, on the market as DEXRON-VI, was developed in ...

In its 9-7 decision, the U.S. Court of Appeals for the Sixth Circuit found the district court's commonality analysis too ...

GM is recalling over 217,000 vehicles in North America, including 22,911 in Canada, over a possible transmission fluid leak. Auto123 has the details.

General Motors is recalling more than 90,000 vehicles in response to a potential transmission issue that could lead to an increased risk of a crash.

Q:I have a 1990 Chevy SS454 pickup truck with 191,000 miles. It's time to change the transmission fluid again. The information in the manual says to use Dextron II, but the last time I had it ...

(Reuters) -General Motors will recall 461,839 vehicles over an issue with transmission, the National Highway Traffic Safety Administration said on Wednesday. The recall involves some models of ...