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GM recalls 3.6 million vehicles for airbag-software problems

The Basics: General Motors is recalling 3.64 million vehicles across its lineup for an airbag-related issue. The recall covers the 2014-2015 Buick LaCrosse, Chevrolet SS, and Spark EV; 2014-2017 Chevrolet Corvette, Trax, Caprice PPV, Silverado 1500, Buick Encore, and GMC Sierra 1500; and 2015-2017 Chevrolet Tahoe, Suburban, Silverado HD, GMC Yukon, Yukon XL, Sierra HD, Cadillac Escalade, and Escalade ESV. The Problem: Affected vehicles have a sensing and diagnostic module that controls the airbags and seat-belt pretensioners. The software it uses has a defect that can prompt the module to run a diagnostic test under specific driving conditions, which will also deactivate the front airbags and pretensioners. This means that it would be possible for those safety systems to not activate in a crash, potentially leading to injury or death. Injuries/Deaths: General Motors began an investigation that led to the recall after a 2014 Silverado was involved in a crash in which the airbags did not deploy. No information was given as to injuries or deaths. The Fix: Owners can bring their vehicles to a local General Motors dealer where a software update will be installed to fix the issue. The fix will be free of charge. If you own one: General Motors will contact owners of affected cars, and owners can check whether their vehicles are affected by visiting entering their vehicle identification numbers at either the GM Owner Center website or the NHTSA website. Owners can then schedule a time to have the update installed. Related Video:

Sunday Drive: Spying an automotive future of performance

I spy, with my little eye ... the future of the automotive world here in the United States. That pretty much sums up this week's Sunday Drive, in which we pull out the most popular stories on Autoblog of the previous week and try to draw some sort of conclusion as to what binds them all together. This week, it's spy shots, starting with one of the biggest and baddest muscle cars the world has ever seen: the Dodge Challenger Hellcat. The Hellish coupe gets a new hood for 2019 with dual scoops, but that's about the only meaningful change for the new model year. No matter. As long as it's packing 700-plus horsepower under those two hood scoops, all will be right with the world. Moving on, we take keep the performance angle but move it from the street to the dirt with a new version of the Chevy Colorado ZR2 that we think is probably called the Bison. We think it'll keep the high-tech suspension bits of the regular ZR2, but add expedition gear that may include a snorkel and a winch. Which, if true, is pretty dang cool. Keeping the truck theme is the 2019 GMC Sierra. There's nothing particularly noteworthy about the trim level in which the truck was spied, and that's what makes this specific example interesting. Base-model trucks almost never get much attention, but they sell in droves to workers who need an honest-to-goodness truck for work or play and don't care about bells, whistles, or massive chrome badges. And finally we have the 2018 Jeep Wrangler, which is on fire on the sales floor right now. But those are all V6-powered Wranglers flying off the showroom floor. Soon, a turbocharged four-cylinder engine option will become available, and now we know that it will return up to 23 miles per gallon in the city and 25 on the highway. That makes it the most fuel efficient Wrangler that Jeep has ever sold. As always, stay tuned to Autoblog this week for all the automotive news that's fit to publish. 2019 Dodge Challenger Hellcat with twin-scoop hood spied with no camouflage Chevy Colorado ZR2 Bison caught testing 2019 GMC Sierra 1500 spied in base trim level 2018 Jeep Wrangler four-cylinder fuel economy revealed Spy Photos Chevrolet Dodge GMC Jeep Truck Coupe SUV Off-Road Vehicles Performance dodge challenger srt hellcat sunday drive

2017 GMC Acadia starts at $29,995

The 2017 GMC Acadia has a lower price in addition to its smaller size and 700-pound weight loss. The latest model starts at $29,995 (including $925 destination) when it arrives at dealers this spring, which is $1,905 less than last year's base version. That low price is just for the front-wheel-drive only SL trim, but there are savings throughout the 2017 lineup. The least expensive all-wheel drive version comes on the SLE model for $35,375, versus $37,100 last year (after $925 destination). The top-spec all-wheel drive Denali now costs $47,845, compared to $50,815 for the 2016 version. You can check out the MSRP for each trim in the release below. The new All Terrain model costs $40,040 and gets a more sophisticated all-wheel drive system with an active twin clutch. GMC claims the layout improves performance in wet, snowy and icy conditions. However, the trim is only available in five-passenger configuration, and storage bins in the floor replace the third-row seat. The 2017 Acadia price is also competitive with some challengers in the segment. For example, a base 2016 Honda Pilot is more expensive at $31,045 (after $900 destination), and the top Elite is $47,470, which is barely cheaper than the Denali. A base 2016 Ford Explorer is more costly at $31,995 (after $945 destination), and the Platinum for $53,915 is several thousand more than a Denali. The latest Acadia offers customers a bounty of tech and efficient powertrains. The IntelliLink infotainment system has support for Apple CarPlay and Android Auto, and there're available safety systems like front pedestrian braking and a surround view camera. Most models come with a 2.5-liter four-cylinder, which GMC estimates gets 22 miles per gallon city and 28 mpg highway with front-wheel drive. A 310-horsepower 3.6-liter V6 offers an estimated 25 mpg highway for front-wheel drive models. Both powertrains use a six-speed automatic. Related Video: 2017 GMC Acadia starting at $29,995 Drives to heart of midsize SUV segment with lower starting price, more features DETROIT – GMC announced today pricing for the all-new 2017 Acadia will start at $29,995 when it goes on sale this spring. The base price is $1,905 less than the 2016 base model and the new Acadia offers more standard equipment, including a new IntelliLink system with Apple CarPlay and Android Auto compatibility (User interfaces are products of Apple and Google and their terms and privacy statements apply.