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GM will recall 3.5 million pickups and SUVs to fix brake issue

WASHINGTON — General Motors Co is recalling 3.46 million U.S. pickup trucks and SUVs to address a vacuum pump issue that could make braking more difficult and increase the risk of a crash. The recall, which covers 2014-2018 model year vehicles, including some Cadillac Escalade, Chevrolet Silverado, Chevrolet Tahoe, GMC Sierra, Chevrolet Suburban and GMC Yukon vehicles, 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 Wednesday. NHTSA opened a preliminary investigation into the issue in November 2018, and said it had reports of 9 crashes and two injuries related to the issue. It provided GM in July with additional field reports that prompted the automaker to open an investigation. The company did not immediately say on Wednesday how many injuries or crashes are linked to the issue but said it could impact braking in "rare circumstances." GM said dealers will reprogram the Electronic Brake Control Module with a new calibration that will 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. Recalls Chevrolet GM GMC

2017 Chevy Bolt Prototype Quick Spin [w/video]

To say that there's a lot riding on the upcoming Chevy Bolt doesn't quite get at how important this all-electric vehicle could be for GM. To say that there's a lot riding on the upcoming Chevy Bolt doesn't quite get at how important this all-electric vehicle could be for GM. We are entering a new phase for EVs in the US, and it's one where there will be more than one 200+ mile range electric model that will cost around $30,000-$35,000. The two obvious first entries are the Tesla Model 3 and the Bolt, but you can bet your Level 2 charger that Nissan will be joining the party as well, along with all sorts of as-yet-unannounced entries from other automakers. The main change that all of these longer-range EVs will bring is – potentially – to make plugging in your car a mainstream thing. And if the mainstream is in play, then there's money to be made, and you're going to need one heck of an EV to get people to pick your car instead of someone else's. So, yeah, the Chevy Bolt could be a big deal. And today we not only got a bit more information about the car but we also got to go on a really short test drive in a prototype version outside of the Las Vegas Convention Center as part of CES 2016. The "drive" took place in a closed-off parking lot and my two laps through the cone course took less than three minutes, but I can still say that it looks like GM will be bringing a solid option to the marketplace soon. Chevy Bolt Prototype front 3/4 View 16 Photos If you shift into L, the regen becomes wonderfully strong. One of the pleasant surprises in the Bolt prototype is the ability to drive with just one pedal. When in D, the Bolt coasts a bit, which is nice for highway driving, but if you shift into L, the regen becomes wonderfully strong. Strong enough that you don't need to engage the brakes at all if you're in standard city traffic, with lots of gentle stops and starts. If you want even more stopping power without getting the brakes involved, the Bolt also has the regen-on-demand feature that was introduced in the Cadillac ELR and works great in the second-gen Chevy Volt. When you pull the paddle on the left back side of the steering wheel, the electric motor instantly becomes a generator and the Bolt turns forward momentum into energy for the battery pack. It will even bring the car to a complete stop and then hold it when you release the paddle.

This is how GM is hiding new Chevy Volt in public

General Motors is letting the public know that, well, it's not about to let the public know anything else about the next-generation Chevrolet Volt. But the automaker is willing to talk about its camouflaging process for upcoming versions of the extended-range plug-in. So it's a half-hearted secret, at best. GM actually has a "camouflage engineer" charged with creating ways to disguise the styling of new vehicles. In the Volt's case, the company is applying black and white swirly color patterns on top of the materials, such as plastics, vinyl and foam, that are used liberally across the body. It's all part of a teaser campaign that started last month with pictures of part the 2016 Volt. Earlier this month, GM said it was keeping track of Volt drivers' habits as it works on the next-gen model. The company noted that more than four out of five trips are being made in all-electric driving mode, and that 60 percent of Volt owners use a plain-old 100-volt outlet to recharge their cars. The car is slated to make its global debut at Detroit's North American International Auto Show next January, and the early word is that performance and all-electric range will be improved (we should hope so). The car will also be sleeker. By how much, we can't tell yet, because of those darn swirly patterns. GM's got more non-details in its press release below. Engineers charged with hiding styling while vehicle testing proceeds in public DETROIT – The styling of the next-generation Chevrolet Volt is one of the automotive world's best-kept secrets. Keeping customers and media eager to see the successor to the groundbreaking original at bay until the new Volt debuts at the North American International Auto Show in Detroit in January is tricky business. First, it is engineers, not designers, who are charged with creating camouflage that balances styling secrecy with the need to validate the Volt and its systems in public. "If it were up to me it would be a shoebox driving down the road," said Lionel Perkins, GM camouflage engineer. "The design team wants us to cover more of the vehicle and the engineering team needs to have enough of the vehicle's weight and aero exposed so that the tests in the development process are consistent with the product that will come to market." The engineers responsible for the "cool" designs covering the car might deserve style points but their efforts are intended strictly to hide the metal beneath.