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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 Escala Concept shows off a softer side of American luxury

When Cadillac announced that it would be appearing at Monterey Car Week with a stunning, new concept, the news sent a rush of blood to the head. Would it be a CT6 Coupe? A new V-series model? A follow-up to the show-stopping Elmiraj? Tonight, at the beginning of a weekend of festivities to tantalize automotive enthusiasts and aficionados, Cadillac instead showed off a glimpse of reality: the Escala four-door coupe concept. It wasn't behind a flat-white background, but at a futuristic yet modern home nestled in the hills that Cadillac president Johan De Nysschen introduced the Escala as a "point of inflection" for the brand. Keen observers will note that "Escala" is nearly "Escalade," but any similarity between the two vehicles ends there. De Nysschen noted that the four-door is meant to "relentlessly drive this brand back to its place at the pinnacle of premium." "Nothing less will do," de Nysschen said. The Escala is neither as bold as some recent Cadillacs to take the stage, nor as brash. From a distance, it has a wide, muscular stance wrapped in a tailored suit. Up close, it almost resembles a four-door Camaro — perhaps a nod to the work of former Holden design chief and incoming General Motors director of design, Michael Simcoe. De Nysschen described the Escala project as an "opportunity for designers to flex their creative muscle." The Escala seems to have a footprint mirroring that of a Mercedes-Benz CLS-Class, but it feels wider and smaller at the same time. Is the shape derivative? Perhaps, but the Escala's design is less a reflection of a future, incognito Cadillac, and more of a chance for the brand to show off the details that might soon become icons. The Escala's shape may not be earth-shatteringly different, but the truth is in its details. The mirrors are as thin as designer spectacles. The C-pillar offers an opportunity to show off Cadillac's latest take on the Hoffmeister kink. A glass roof adds visual airiness. And a simple "GM DESIGN" badge sits below the side doors, in deference to the stylists who labored to make the Escala different. The most defining element of the concept is the way it utilizes light. There isn't anything blinding about its lighting, but that means you can focus on the shape and appreciate the ambience. The depth of the LED tail lights adds visual length to the Escala and shows where Cadillac's designers placed the most importance. It's contrast and beauty at once.

All-new 2019 Cadillac XT4 crossover debuts in New York

Cadillac spent years and years improving its mainline sedans, the CTS and ATS, turning them into awfully good impressions of BMWs from a few years before. The thing is, great sedans aren't selling, and crossovers sure are. Cadillac's XT5 is the only crossover in the lineup, something that's had American Cadillac dealers gnashing their teeth and wailing — although anyone they can upsell into an Escalade can staunch the bleeding. That brings us to the new XT4, which is smaller than the XT5 but even sharper than its bigger sibling. Let's take a closer look at this new two-row luxury crossover. For one, it's based on what Cadillac calls a unique platform. That may be true, technically, although it's likely related to the Equinox/Terrain on some level. Platforms are becoming quite flexible: Look at Volkswagen's MQB, under everything from Euro hatches smaller than our Golf to the three-row Atlas. Whatever else it is underneath the skin, all XT4s will share one powertrain: the corporate 2.0-liter turbocharged inline-four, paired to a nine-speed automatic transmission. View 14 Photos The engine puts out a healthy 237 horsepower and 258 pound-feet of torque, putting it just a hair underneath its closest domestic rival, the Lincoln MKC with the 2.0-liter EcoBoost. Of course, the 2.3-liter MKC beats the XT4 handily, but that's another story. Power is produced with the help of a twin-scroll turbocharger. All-wheel drive is available, with a driver-selectable rear axle disconnect to save a small amount of rolling friction. Cadillac estimates it'll be good for 30 MPG on the freeway, but we haven't seen official results to confirm that. A few other changes that'll affect driving: electro-hydraulic brake assist, a first for Cadillac and mainly a fuel-saving measure; and Continuous Damping Control, which alters the damper's valve continuously based on a number of parameters. It's almost certainly used here because it's lighter and less expensive than air suspension or MagneRide, and it is optional on XT4. CDC or no, all XT4s utilize a front strut and five-link rear suspension. All XT4s also ride on 18-inch wheels in various designs. The trim strategy is mildly interesting. The base model is the Luxury, and then you can choose a Sport (black exterior trim, unique wheels) or a Premium Luxury (bright trim and satin-brushed accents). The interior options are suitably upscale and premium, and we'll have more to say about them a little later when we can see this car up close.