We know, advertisements are annoying and slow down the internet. Unfortunately, this is how we pay the bills and our authors. We would love for you to enjoy our content, we’ve worked hard on providing it. Please whitelist our site in your adblocker, refresh the page, and enjoy! General Motors faces a new class-action lawsuit after owners claimed the automaker’s 8-speed automatic transmission houses a major defect. Per the information posted to Classaction.org, drivers have experienced violent shakes, jerks, or a “hard shift” when selecting a gear with the automatic transmission. The information also says 13 technical service bulletins have been filed about 8-speed automatic transmission problems, though none of them have remedied the problem absolutely. The technical name for this transmission is either the 8L90 or 8L45 automatic transmission, which is found in numerous GM vehicles. The transmission pairs to cars on a rear-wheel-drive architecture, meaning owners of GM’s sports cars, luxury sedans, trucks, and SUVs have the 8-speed automatic transmission in question. The problem is most common when a driver accelerates of decelerates and the transmission moves to shift a g...