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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 recalls nearly 340,000 large SUVs to fix daytime running lights

General Motors has initiated a recall campaign for more than 338,000 of its large SUVs to address a potential defect in the onboard computer software that controls the daytime running lights. In some cases, the DRLs may remain on even when the headlights are enabled, which creates additional glare for oncoming drivers at night and fails to comply with federal regulations for headlight performance.  "GM determined that the body control module (BCM) software in these vehicles, under a combination of certain pre-conditions, may fail to deactivate the DRLs when the headlamps are on," GM's recall report said. "A regulatory assessment was conducted to evaluate whether the condition presented a potential noncompliance with the DRL activation requirements in S7.10.5, Table I-a. of FMVSS 108. On October 27, 2022, GM’s Safety Field Action Decision Authority (SFADA) decided to conduct a recall for potential noncompliance with this standard." GM says the recall covers the 2021 model year GMC Yukon and Yukon XL, 2021 Chevrolet Tahoe and Suburban, and 2021 Cadillac Escalade and Escalade ESV. The company says all models produced within that operating window include the improperly programmed body control module, meaning all vehicles within the recall population may exhibit the problem. The issue was discovered by a GM engineer during validation testing in August, prompting a deeper investigation and eventually leading to the recall itself.   The module's software can be updated by GM dealers, so it should be a quick fix for customers. Notifications will be mailed to owners in December.  Related video: Recalls Cadillac Chevrolet GMC Ownership Safety SUV Luxury

Chevy Traverse, Hyundai Santa Fe revealed; Buick Envista, BMW M4 CSL driven | Autoblog Podcast #790

In this episode of the Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Senior Editor John Beltz Snyder. After some banter, including the discussion of an excellent tomato sauce recipe, they get into car reviews. Greg has been driving the Mercedes-AMG GLE 53, while John has been testing the BMW M4 CSL and Buick's new Envista crossover. There's lots of interesting news this week. Chevy revealed the 2024 Traverse with new looks, a new engine and on off-road(ish) trim. Hyundai gave us a glimpse at the wild styling of the next Santa Fe. Dodge might bring back the Stealth nameplate as an SUV, and that has implications for the Durango as well. Ford, after repeatedly raising prices, has turned around and significantly discounted the F-150 Lightning across all trims. The first Tesla Cybertruck has rolled off the line as a pre-production prototype. Finally, we reach in to the mailbag and help a listener decide what to do with cars for himself and his kids in this week's Spend My Money segment. Send us your questions for the Mailbag and Spend My Money at: Podcast@Autoblog.com. Autoblog Podcast #790 Get The Podcast Apple Podcasts – Subscribe to the Autoblog Podcast in iTunes Spotify – Subscribe to the Autoblog Podcast on Spotify RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown Cars we're driving 2023 Mercedes-AMG GLE 53 2023 BMW M4 CSL 2024 Buick Envista 2024 Chevrolet Traverse gets rugged looks, new turbo engine, Z71 trim 2024 Hyundai Santa Fe revealed with a radical redesign Dodge Stealth coming with new platform, looks, and powertrains in a year (Bonus reading: check out Dodge Stealth listings) Ford F-150 Lightning gets significant price cut across the full range First Tesla Cybertruck pre-production prototype comes off the line Spend My Money Feedback Email – Podcast@Autoblog.com Review the show on Apple Podcasts Autoblog is now live on your smart speakers and voice assistants with the audio Autoblog Daily Digest. Say “Hey Google, play the news from Autoblog” or "Alexa, open Autoblog" to get your favorite car website in audio form every day. A narrator will take you through the biggest stories or break down one of our comprehensive test drives. Related video: Green Podcasts BMW Buick Chevrolet Dodge Ford GM Hyundai Mercedes-Benz Tesla Truck Crossover SUV Electric Future Vehicles Luxury Off-Road Vehicles Performance