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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.

2018 Hyundai Accent vs subcompact sedans: How it compares on paper

Hyundai first revealed the new 2018 Hyundai Accent a few months ago, but that debut was in Canada for the Canadian-market car. We didn't get our look at the U.S. version until just recently, which is when we also finally got plenty of specifications on the little car. So as we did with the Genesis G70, we've brought you a breakdown of the Accent's specs and some of the segment's best and most popular: the Nissan Versa, Kia Rio, Chevrolet Sonic and Toyota Yaris iA. Before we get to the chart, let's give you a quick reintroduction to the 2018 Accent. The subcompact is completely new this year, and under the hood is again a naturally aspirated 1.6-liter four-cylinder engine. It makes 7 fewer horsepower and 4 fewer pound-feet of torque than the outgoing model with totals of 130 horsepower and 119 pound-feet. This drop in power probably won't be noticeable, though. It's also available with either a manual or automatic transmission, both featuring six speeds. Fuel economy hasn't been announced, but the Rio's numbers below are probably a good indicator as they share powertrains. The one thing that isn't available with an Accent is a hatchback. According to Autoweek, the hatchback was canned with the assumption that hatch buyers would simply purchase an example of the upcoming Kona crossover. But if you want a traditional subcompact hatch from South Korea, Kia is happy to oblige, as the Rio is still available as a hatchback. Learning that the Kona may have killed the Accent hatch causes us to wonder if Kia brought the Rio hatch to the U.S. because it wasn't planning on offering the Stonic. Related Video: News Source: Hyundai, AutoweekImage Credit: Hyundai Chevrolet Hyundai Kia Nissan Toyota Sedan nissan versa hyundai accent kia rio toyota yaris ia

GMC Sierra EV AT4, Chevy Silverado EV Trail Boss caught in spy photos

We've known for a while now that GMC and Chevy have been working on AT4 and Trail Boss versions of their respective Sierra EV and Silverado EV pickup trucks. But we're getting our best look yet at them with these spy photos. They give us a better idea of what body changes there will be, as well as a close-up of the tires, giving us their size and type. Some basics of off-road trim levels are obvious to spot. Both trucks feature bright red recovery hooks up front. But beyond that, there isn't much different from the outside of either truck compared to the base examples of each. The front bumpers are basically the same profile as the base bumpers, with the exception of the recovery hooks. The Silverado has natural black plastic fender flares, whereas the GMC has body color examples with integrated marker lights. They both get the same standard side steps, and the rear bumpers also appear unchanged. Each of these is equipped with the MultiPro/Multi-Flex tailgate. Chevrolet Silverado EV Trail Boss prototype View 14 Photos Really the biggest change appears to be in the wheels and tires. Each of them have unique designs, but they have the same dimensions. They're 18-inch wheels with 285/75R18 tires. That comes out to just shy of 35 inches in diameter, a good size of tire for an off-roader — and note how it doesn't even look all that large on such big trucks. Said tires are Goodyear Wrangler Territory AT all-terrains. The gas-powered trucks come with slightly narrower (275) mud-terrain versions as standard. Both of these trucks should start somewhere below the range-topping first edition models the two brands are currently marketing to the public, which hover between $95,000 and $110,000 depending on specification. The Silverado WT does start at just under $80,000, and we would expect the Trail Boss and the Sierra EV AT4 to come in somewhere above that, possibly between $85,000 and $90,000. Specifications are a mystery. It seems likely that at least the Silverado will get the WT's dual motors with 510 horsepower and 615 pound-feet of torque. The GMC could potentially get the more powerful motors making 754 horsepower and 785 pound-feet of torque as a way to differentiate itself, though this is speculation. The 204-kWh battery pack is probable, though there are rumors that at least GMC is going to start offering a smaller, more affordable 170-kWh pack that could be an option.