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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.

2017 Cadillac CTS-V Drivers' Notes | V is for velocity

The 2017 Cadillac CTS-V is as close to a four-door Corvette Z06 as you're ever likely to get. Underneath the carbon-fiber hood rests one hell of an engine, a 640-horsepower supercharged V8. It's only slightly less powerful than what you'll find in the Corvette. Thanks to GM's chassis wizards, the car's handling is an equal match for the powerful engine. This particular car packs in a number of options, including Recaro seats and the performance data recorder that allows owners to measure lap times and record video. The most expensive option is the $6,950 Carbon Black Package. This nets you a carbon fiber hood vent, front splitter, spoiler and rear diffuser. This car isn't cheap, but it does undercut the less powerful Audi RS7 and Mercedes-AMG E63 S. Associate Editor Joel Stocksdale: This is a seriously fun, if also flawed, car. And the biggest contributor to the fun is the big lump of V8 under the hood. The supercharged 6.2-liter makes 640 horsepower, but Cadillac could've left the number off and just called it "effortless." The gentlest pressure on the gas pedal will result in you picking up an extra 10 mph without ever noticing. And when you stomp on it, you get this huge and immediate surge of acceleration. It's truly giggle-inducing. Although the CTS-V is big and heavy, it handles the power well. It gives you enough info on what's happening so you feel in control, and the chassis is impressively composed. The only real weak points I can find on the CTS-V (besides the low gas mileage) are the interior controls. They are abysmal. The infotainment screen is pretty poor, with a clutter of information at the main screen, and difficult-to-find commands for getting to other menus. But worse than that are the climate and volume buttons. They're all touch-sensitive spots on the center stack. They're not very responsive, and the vibratory feedback it provides isn't noticeable while driving. It doesn't help that the feedback feels pretty inconsistent, too. For me, I think I could learn to live with the infotainment, simply because I love the way the rest of the car feels and drives. But, Cadillac, you need to get to updating this ASAP. Associate Editor Reese Counts: OK, Cadillac's infotainment system sucks. Let's get that out of the way. Touch capacitive interfaces don't work well in cars. This does have the old version of CUE, so I'm hoping the next-gen system will fix some of the interface issues. Like Joel, this wouldn't turn me off from buying the car.

2016 Cadillac ATS-V First Drive [w/video]

If you get hot and bothered for hot-rodded sedans and coupes, you probably know that Germans have long dominated that cutthroat scene. For years, the Audi RS/BMW M/Mercedes-AMG triumvirate has ruled the microcosm of grunty, mid-level luxury cars. But a funny thing happened when Cadillac's first V car hit the market in 2004. Since the CTS-V crashed the high horsepower party, German tuning houses started thinking less about the "Daddy's Caddy" stereotypes and more about the next imminent threat – in this case, the inevitable high-horsepower spinoff of the smaller, nimbler Cadillac ATS. The standard ATS' defense against the German triad hasn't been triumphant so far (GM's Michigan plant was idled for three weeks in 2014 due to excess inventory), but the souped-up 2016 Cadillac ATS-V presents a fresh bid to put the Teutonic competition on alert. The ATS-V's flared bodywork and quad exhaust pipes offer bits of visual shock and awe, but significant hardware upgrades back up the go-fast looks. Front and center is a twin-turbocharged, 3.6-liter V6 with reworked internals including a charge-air cooler, titanium connecting rods, and titanium-aluminide turbines. The new engine produces 464 horsepower and 445 pound-feet of torque, up a staggering 262 hp and 173 lb-ft compared to a base, four-cylinder ATS. Those output figures eclipse the BMW M3/M4 (425 hp, 406 lb-ft) and Audi RS5 (450 hp, 317 lb-ft), but lag slightly behind the V8-powered Mercedes-AMG C63 (476 hp, 479 lb-ft), and more so the C63 S (503 hp, 516 lb-ft). The chassis benefits from several structural braces, most notably a shear panel intended to boost front-end stiffness. Extra poundage from the add-ons are minimized through lighter-weight materials – in the case of the shear panel, stamped aluminum. Cadillac says though it intended to make the ATS the quickest car in its segment (stated 0-60 mph times between 3.8 and 3.9 second virtually match the BMW M4 and Mercedes-AMG C63 S' 3.9 figure), the development team says they also focused on subjective qualities like turn-in quickness and steering response. As such, toe links have been replaced with ball joints, mounts have been retuned, and reworked magnetic damping offer greater responsiveness. Six suspension bushings have been stiffened and ten have been completely redesigned, and the Performance Traction Management system that tames beasts like the Corvette Z06 and Camaro ZL1 also helps lay down power in the ATS-V.