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GM faces possible class action lawsuit over 8-speed transmission

General Motors has been hit with a class-action lawsuit from owners who allege the eight-speed automatic transmission found in several rear-wheel-drive Chevrolet, Cadillac and GMC models between the 2015 and 2019 model years has a defect that causes the vehicles to hesitate and jerk when accelerating or slowing down. The lawsuit was posted to ClassAction.org and spotted by GM Authority. Problems with GM's Hydra-Matic 8L90 and 8L45 transmissions have been well-documented on Internet forums and via complaints filed with the National Highway Traffic Safety Administration, with many reporting damage to their vehicles. The lawsuit was first filed in December in U.S. District Court for the Southern District of Florida but appears to have been transferred recently to New York. Autoblog sought comment from Theodore Leopold, the lead attorney for the plaintiffs. "These transmissions have a common defect," the complaint reads. "Drivers attempting to accelerate or decelerate their cars feel a hesitation, followed by a significant shake, shudder, jerk, clunk, or 'hard shift' when the vehicle's automatic transmission changes gears." The problem also occurs when the vehicles accelerate in a single gear, without shifting, the plaintiffs allege. "Drivers have reported that the shift is sometimes so violent, they feel as though they have been hit by another vehicle." The problem is believed to center on the transmission, torque converter or both. The complaint says it causes undue friction, causing hydraulic systems and gears to function improperly and sometimes leaves metal shavings throughout the transmission, leading to costly repairs and replacement of parts or the entire transmission. It says GM has known about the problems since shortly after it introduced the transmissions, and has issued 13 technical service bulletins, none of which have resolved the problem. GM declined to comment on the lawsuit. The plaintiffs say GM should have warned consumers about the issues and covered repairs under each vehicle's three-year/36,000-mile bumper-to-bumper warranty. They're seeking statewide classes in at least six states: California, Florida, Illinois, New York, Oklahoma and Texas.

GM ending stop-sale order on heavy-duty trucks

General Motors responded to an inquiry from Autoblog regarding a stop-sale order on its full-size heavy-duty pickup trucks. Here's GM's official statement. GM is committed to building the highest quality products possible. We paused delivery on a small number of HD pickups with the 6.6 liter Duramax engine last week to finalize an investigation into a potential quality issue. The investigation has been completed and the stop sale will be lifted for the small number of vehicles at dealerships.Customers can be assured GM’s heavy duty pickups are covered by a 5 year/100,000 mile powertrain warranty. The original article continues below. General Motors has reportedly sent its Chevrolet and GMC dealers a stop-sale order that applies to some examples of the 2022 Silverado HD, the 2022 Silverado MD, and the 2022 Sierra HD. The units affected by the stop-sale order may develop an engine-related problem. Citing anonymous sources, website GM Authority wrote that the Duramax 6.6-liter turbodiesel V8 in the affected trucks can hydrolock, which means liquid could enter the cylinders and cause a substantial amount of damage. The report does not specify where the liquid would come from; hydrolocking can happen by driving through a deep puddle of water, for example, but a large amount of coolant can cause it as well. The publication adds that the stop-sale order was assigned internal reference number N222362910. It also notes that the trucks included in it can't be sold, delivered to buyers, traded with another dealer, sent to auction, or even used for demonstration purposes until further notice. Earlier in April 2022, GM Authority reported that General Motors planned to buy back an unspecified number of Silverado HD and Sierra HD trucks due to quality-related issues with the 6.6-liter V8. Details about the problems experienced by customers haven't been released; all we know is that each truck will be replaced, though the replacement may not have the same equipment due to the ongoing chip shortage. Related video:

Autoweek dubs GMC Canyon, VW GTI its 2015 'Best of the Best'

For kids around the globe, tis the season for Santa, reindeer and presents. For the automotive industry, the last quarter of each year is reserved for awards, whether they come from Motor Trend, Car and Driver, Automobile, or yes, Autoblog. The latest to get released comes from our friends at Autoweek. The magazine has echoed other outlets, naming a Volkswagen hatchback and a small pickup from General Motors as its Best of the Best. Unlike Motor Trend, which handed out its golden calipers to the Chevrolet Colorado and Volkswagen Golf range, Autoweek doled out its awards to the Colorado's twin, the GMC Canyon, while singling out the hottest version of the Golf, the GTI. "This is the best hot-hatch on the American market – and it may be the best car you can buy for less than $30K," one AW staffer said in the publication's article on the feature. Other staffers praised the absolute value provided by the GTI and the overall fun factor. The Canyon, meanwhile, was saluted for being "the perfect size," not to mention its excellent build quality, feature-rich cabin and overall practicality. "It's truly a truck in the most honest sense of the word," Autoweek wrote of the Canyon. Scroll down for the full press release on the announcement from Autoweek, which includes comments from both Volkswagen and GMC. And then head over and read AW's full feature on the awards. Autoweek names Best of the Best/Car and Truck for 2015 Volkswagen Golf GTI and GMC Canyon signal a strong year for design, performance and value DETROIT, Dec. 16, 2014 /PRNewswire/ -- Today, Autoweek named the Volkswagen Golf GTI as its Best of the Best/Car for 2015, beating a group of finalists that includes the Alfa Romeo 4C, Ford Mustang and Mercedes-Benz C-class; and the GMC Canyon as its Best of the Best/Truck for 2015, besting the likes of the Chevrolet Colorado, Lincoln MKC and Porsche Macan. Autoweek evaluates every new or significantly updated model throughout the year and begins to identify the standouts. Performance, economy, fit and finish, design, value, significance to the auto industry and personal taste all combine to define the Best of the Best. Four cars and four trucks make the grade, and Autoweek editors put them through rigorous road-handling tests at Michigan International Speedway in Brooklyn, Mich. This is where a vehicle transcends the numbers and shows if design, performance and pure driving passion meld into an Autoweek Best of the Best pick.