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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.

Weekly Recap: GM scales back as Russian auto market teeters

General Motors' extensive plans to scale back its Russian operations are the latest sign the automotive market in the former superpower is collapsing – and there are few signs of recovery. GM said Wednesday it will stop selling mainstream Chevrolets and shutter the entire Opel brand in Russia. The moves leave GM with a luxury-focused presence consisting of Cadillac and Chevrolet's Corvette, Camaro and Tahoe. The cutbacks will be completed by the end of the year. The automaker will also idle its factory in St. Petersburg and end a contract-assembly agreement with Russian manufacturer GAZ. "We had to take decisive action in Russia to protect our business," Opel Group CEO Karl-Thomas Neumann said in a statement. "We confirm our outlook to return the European business to profitability in 2016 and stick to our long-term goals." GM is the latest automaker to scale back in Russia as the economic conditions, volatile currency and uncertainty over the conflict in the Ukraine all have sandbagged new car sales. Last month, vehicle sales collapsed 38 percent in Russia to 128,298 units, according to the Association of European Business, which records sales. Joerg Schreiber, chairman of the AEB automobile manufacturers committee, didn't even feign optimism in a statement announcing the figures. "The market is entering a very difficult phase now, and February is only the beginning," he said. "Industry sentiment is the next few months will be extremely difficult and the market bottom has yet to be found." The dovetails with industry experts, who predict the Russian auto sector will remain in the doldrums. IHS said earlier this year it expects Russia's sales to slip to just 1.8 million units in 2015, which is a 40-percent drop from 2012. Other News & Notes Chief leads Jeep's Easter Safari stable Jeep is bringing seven attention-getting concepts to Moab for its annual Easter Safari off-roading celebration in Utah, but the Chief is perhaps the standout of the group. It salutes the 1970s Cherokee with a throwback appearance and surfer styling cues. The Chief has a custom modified razor grille made famous by the Wagoneer, and it rolls on 17-inch slotted mag wheels. The surf theme comes in with ocean blue paint, floral cloth and leather seats and a tiki-style shifter handle. Based on the Jeep Wrangler, the Chief has removable sides, a 3.6-liter V6 engine and a six-speed manual gearbox.

How GM's grueling 24-hour test gets the kinks out of its performance cars

One of the biggest challenges automakers face when designing a high-performance car is making sure that it is both fast and reliable. For General Motors, any car that might be taken to the track by its owner - like the Corvette, Camaro Z/28 (shown above) and the Cadillac CTS-V, for example - undergoes a rigorous and strenuous 24-hour test by engineers at the Milford Proving Grounds, as pointed out by Car and Driver.
We've posted on this topic in the past - on a video showing the Camaro ZL1 being brutalized, for instance - but this article gives a more in-depth look at what actually happens behind the scenes... including what that poor ZL1 went through. Though the test isn't for 24 hours straight, the cars are pushed as hard as possible by some of GM's best drivers with only the brakes and tires replaced frequently.
We don't want to ruin the fun for you, but it is an interesting article that tells just some of what GM does to develop its sports cars. Check out the full article over at Car and Driver for the rest of the story.