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GM recalls 3.8 million vehicles in North America due to braking issue

WASHINGTON — General Motors Co said Wednesday it was recalling 3.46 million U.S. pickup trucks and SUVs to address a vacuum pump issue that could make braking more difficult and that has been linked to 113 accidents and 13 injuries. The recall covers 2014-2018 model year vehicles, including some Cadillac Escalade, Chevrolet Silverado, Chevrolet Tahoe, GMC Sierra, Chevrolet Suburban and GMC Yukon vehicles. In late June, GM recalled 310,000 vehicles in Canada for the same issue. GM did not immediately explain why the Canadian recall occurred more than two months before it called back the vehicles in the United States. The recall was triggered because the amount of vacuum created by the vacuum pump may decrease over time, GM told the National Highway Traffic Safety Administration (NHTSA) in documents posted on Wednesday. The NHTSA opened a preliminary investigation into the issue last November, and said it had reports of nine related crashes and two injuries. It provided GM in July with additional field reports that prompted the automaker to open an investigation. GM said it could affect braking in "rare circumstances." The NHTSA said in a statement the "vehicles may experience brake boost failure, which would require increased brake pedal effort, leading to a hard brake pedal feel, and potentially increased stopping distance." GM said dealers will reprogram the electronic brake control module to improve how the system utilizes the hydraulic brake boost assist function when vacuum assist is depleted. GM said the vacuum assist pump, which is lubricated with engine oil that flows into the pump through a filter screen, can in some cases lose effectiveness over time, as debris such as oil sludge can accumulate on the filter screen. GM told NHTSA that prior model years used a different brake assist system design, and vehicles manufactured after 2018 were not equipped with the affected pump design. Separately, GM said on Wednesday it is recalling 270,000 additional U.S. vehicles in three smaller recalls, including 177,000 2018 Chevrolet Malibu cars with 1.5L turbo engines because an error in the engine control module software may result in the fuel injectors being disabled.

Autoblog Technology of the Year Award Special | Autoblog Podcast #758

This episode of the Autoblog Podcast features Editor-in-Chief Greg Migliore, Road Test Editor Zac Palmer and Consumer Editor Jeremy Korzeniewski. The trio begin by discussing the 2022 Technology of the Year award. Ford's Onboard Scales and Smart Hitch hauling/towing tech as tested in the F-150 Lightning won this year. Why the Ford won, how testing went down and Ford's competition — including the GMC Hummer EV and Genesis GV60 — are discussed. After diving through the Technology of the Year award testing, the three take on this week's news. A mysterious vehicle based on the Corvette (that isn't a Corvette) is supposedly on its way. Audi is giving us "Performance" versions of the RS 6 Avant and RS 7 Sportback. Plus, we discuss a recent study that provides data for the 10 longest lasting vehicles on the road today. After the news, the crew dive into the cars they've been driving this week. Greg's been behind the wheel of a Nissan Pathfinder, while Jeremy and Zac have been driving some plug-in hybrids, including the Lexus NX 450h+ and Autoblog's long-term BMW 330e xDrive. Send us your questions for the Mailbag and Spend My Money at: Podcast@Autoblog.com. Autoblog Podcast #758 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 2022 Autoblog Technology of the Year finalists and winner News Mysterious Corvette Audi RS 6 Avant Performance and RS 7 Sportback Performance revealed 10 longest lasting vehicles on the road today Cars we're driving 2022 Nissan Pathfinder SV 2022 Lexus NX 450h+ 2022 BMW 330e xDrive Long-Term tester 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: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Green Podcasts Ford Genesis GM GMC Technology Technology of the Year Truck Crossover SUV Electric Hybrid Luxury Off-Road Vehicles Performance Sedan

GM considering new powertrain options for large SUVs

Aside from the new General Motors offerings, there's not a whole lot of action going on in the fullsize SUV segment. That doesn't seem to be stopping GM from pushing the envelope in the market as Automotive News is reporting that the automaker is looking to introduce some new powertrain options into the Chevy Tahoe (and Suburban), GMC Yukon (and Yukon XL) and the Cadillac Escalade - all have been redesigned for the 2015 model year.
Now, we already know that GM and Ford are collaborating on nine- and ten-speed transmissions for a broad range of applications (including the big SUVs), but this new report says that GM is also considering other options as a way to one-up the competition and, of course, to optimize fuel economy. AN quotes Jeff Luke, executive chief engineer for GM trucks, as saying that "interesting powertrain technologies" are coming including a return of a hybrid SUV and possibly even a diesel engine. Although it sounds like the latter could come down to how customers respond to the 2014 Jeep Grand Cherokee EcoDiesel.