2011 Gmc Acadia Denali on 2040-cars

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Canada opens probe into 250,000 GM pickups, SUVs over brake performance

Transport Canada, the auto safety regulator, has opened a probe into braking issues in nearly 250,000 General Motors full-size pickups and SUVs after U.S. officials launched a similar probe last year, the agency said on its website. The U.S. National Highway Traffic Safety Administration (NHTSA) in November into 2.73 million U.S. 2014-2016 model year SUVs and pickups after receiving 487 reports of hard brake pedal effort accompanied by extended stopping distance that were attributed to deterioration of the engine-driven brake assist vacuum pump. Transport Canada's probe covers 249,700 2015 through 2017 model year vehicles including the Cadillac Escalade, Chevrolet Suburban, Chevrolet Tahoe and GMC Yukon as well as 2014-2017 Chevrolet Silverado LD and GMC Sierra LD vehicles. The U.S. agency said it had reports of nine incidents of vehicles incurring damage as a result of colliding with another vehicle or fixed object at low speeds and reports of two injuries. NHTSA said if the pump fails to operate, the amount of brake power assist can be significantly reduced, extending vehicle stopping distance. The NHTSA sent GM an information request in a Feb. 7 letter. A GM spokesman said he had no update on the investigation. Reporting by David Shepardson; editing by Jonathan Oatis

Overland Expo's GMC Sierra AT4X is an Aussie-style ultimate overlander

Overland Expo is a caravan of companies producing everything one could need or want for overlanding. So what better what to showcase the kind of hardcore overlander possible by dipping into that parts caravan than to build just such an overlander? That's what the Expo did in creating its second Ultimate Build, based on a 2022 GMC Sierra AT4X. Overland Expo said it chose the Sierra for the 6.2-liter V8 with 420 horsepower and 460 pound-feet of torque because it wanted to "go bigger and more extreme" than its first build last year, which was based on a Toyota 4Runner TRD Off-Road. This Sierra trim was chosen over its AT4 sibling due to the extra dose of rugged, like the Multimatic spool dampers that provide about an inch more suspension travel front and rear, and the front and rear locking differentials. The Denali-like luxury isn't a bad thing to have, either. The only performance mods are a MagnaFlow cat-back exhaust, Firestone Ride-Rite air springs at the bag and 17-inch Icon Dynamics wheels on 33-inch 33 Firestone Destination Mud Terrains replacing the stock 18-inchers on Goodyear Wranglers.   Rig builder Mule Expedition Outfitters tapped more than 21 exhibitors for components, and spent "hundreds of hours" putting them all together seamlessly. The most eye-catching swap comes from the MITS Alloy three-foot canopy and tray that replaces the pickup bed. MITS is an Australian company, hailing from the land that also gives us overlanding powerhouses like ARB and Old Man Emu, and this is a popular outback-style rig. In addition to the storage areas on the sides and underneath, the canopy holds a Dometic refrigerator, Green Goat Outdoors camp kitchen and an eight-gallon water can that feeds a Geyser Systems shower. A solar panel on the roof routes power to a pair of lithium-ion batteries in the canopy as well, their output controlled by a Redarc RedVision Manager30.  There are plenty of Rigid lights for avoiding trouble, and a Forrest Tool Max Tool Kit plus GoTreads for when trouble inevitably appears anyway. The crew cab should hold plenty of gear, but anything else that needs to be stored outside will go in a set of 3D dry bags.

GM's Ultium EV platform finally shows up in Q3 sales numbers

General Motors has heralded its Ultium battery-electric platform as the future of its passenger car and truck lineup, but for the first two years of its existence, its impact on the marketplace has been virtually nonexistent. Well, that finally changed in the third quarter of 2023, and while the cars based on this architecture don't represent anywhere near the volume of GM's broader combustion portfolio, we're reaching a point where Ultium products are finally in view (and in the hands) of real-world shoppers. At this point, five U.S.-market Ultium models are in production: the GMC Hummer EV, Cadillac Lyriq, Chevrolet Blazer & Silverado EV, and BrightDrop Zevo 600. If you're not familiar with that last one, that's OK; it's a commercial product that you likely won't see on the road for some time. Together, these four combined for 4,257 sales in the third quarter alone — up from 2,663 for the entire first half of the year. While that may not seem like a significant uptick when viewed from altitude, the quarter-to-quarter numbers paint a clearer picture.  Let's toss out the stragglers first. The Chevy Blazer EV, and Silverado EV for example, are barely in production. GM delivered 19 Blazers and 18 Silverados in the third quarter and that's the entirety of their production runs so far. Likewise, GM's BrightDrop Zevo 600 delivery van effectively exists apart from the consumer marketplace, so its contribution of just 35 units can be set aside too. That leaves us the two you've heard of: the GMC Hummer EV and Cadillac Lyriq — models with high sticker prices and long reservation queues.  Through the second quarter (remember, we're talking six months here), GMC sold 49 Hummer EVs. No typo. In the three months that made up the third quarter, GM moved 1,167 of them. Not only is that a dramatic improvement over the first half, but it's more Hummers than GMC sold in the entirety of 2022 (854). Lyriq's improvement was less eye-popping on paper, but after moving just 122 total units in 2022 and 2,013 of them in the first half of 2023, Cadillac managed to up that figure to 3,018 units in the third quarter alone.  GM is betting its short-term EV future on the Ultium platform, so these trends need to continue if that's going to be a profitable wager.