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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.

Cadillac CT6 gets a plug in Shanghai, will come to US

Don't call it the third coming of the Chevy Volt. The unsurprising debut of the Cadillac CT6 PHEV in Shanghai today has a powertrain that sounds an awful lot like the one that can be found in the Volt and the Cadillac ELR. The plug-in CT6 – identical to the CT6 that debuted in New York earlier this month – has an 18.4-kWh lithium-ion battery (just like the 2016 Volt) and offers an all-electric range of around 37 miles. It also copies the "Regen on Demand" feature from the new Volt and the battery cells "use the latest generation cell chemistry found in other GM plug-in vehicles." But Cadillac President Johan de Nysschen doesn't see the two powertrains as similar in at least one important way. General Motors calls the Volt and the ELR "extended range electric vehicles" (EREV) but in a statement, de Nysschen says that the plug-in hybrid CT6 is, "an ideal platform for Cadillac to offer its first plug-in hybrid." That GM is using the PHEV terminology rather than EREV is going to be important to some, even if the practical difference is only semantic. And yes, we all understand the irony of de Nysschen – the same guy who has a history of speaking ill of plug-in cars – hyping them now. Back when he worked for Audi, he said the original Volt was too expensive for what it offered and was thus, a car for "idiots." Speaking in Shanghai today, de Nysschen said the new CT6 PHEV was, "an EV without any of the disadvantages or range constraints," according to Automotive News. If the batteries are similar to GM's other EREV/PHEV cars, the CT6 powertrain is at least different. The ELR uses a 1.4-liter engine, while the new Volt has a 1.5-liter four-cylinder mill. The CT6, on the other hand, has a 2.0-liter turbo four-cylinder engine with direct injection. There is also an "all-new rear wheel electric variable transmission (EVT) with exclusively designed motors," that will give the CT6 PHEV, "smooth, spirited acceleration." The EVT is a two-motor-unit that uses three planetary gears. Maximum overall system output is 335 horsepower and 432 pound-feet of torque. Perhaps most interesting for American audiences is the fact that GM's press release, available below, makes multiple references to US-market sales of the PHEV. Official details on the EV range and fuel economy will be made available closer to the car's US launch.

2020 Cadillac CT5 finally appears, hopes you think it's a Charger

This is our first look at what we expect to be the 2 020 Cadillac CT5 sport sedan, a one-to-rule-them-all replacement for the ATS, CTS and XTS. The name follows the scheme set by the CT6 and XT5. The first thing that jumps out about the CT5 is the big hood scoop. We sincerely doubt that scoop will make it to production, and when combined with the scalloped shapes on the car's flanks, we and the spy photographer feel they're probably there to dupe people into thinking it's a weird Dodge Charger. The disguise isn't working, but the scoop surprisingly looks pretty good. Maybe Cadillac should consider putting one on an inevitable V model. Moving past the fake bodywork, we can see that this CT5 takes inspiration from the Cadillac Escala concept. It has the long, almost fastback cabin and extra rear quarter window of that concept. The headlights are slim horizontal units, too, though they still sweep back a bit to bridge the gap between current models and the Escala. We also see that there's a decent amount of distance between the front axle and the base of the A-pillar, so we suspect that the sedan will retain rear-drive and optional all-wheel-drive drivetrains. We don't have any other cars in the image to compare it to, but considering the cars the Cadillac CT5 will replace, we expect it's roughly the size of a CTS, maybe even a touch smaller to satisfy those who want a 3 Series/A4/C-Class size luxury sedan. It will also probably use one or more of the existing powertrains in the Cadillac sedan fleet, which include a turbo 2.0-liter four-cylinder, naturally aspirated 3.6-liter V6, and a twin-turbocharged 3.0-liter V6. We'll also probably see the production model sometime in 2019 since that's when the CTS and ATS will go to the big garage in the sky. Related Video: Featured Gallery Cadillac CT5 spy shots Image Credit: Chris Doane Automotive Spy Photos Cadillac GM Luxury Sedan cadillac ct5