2012 Gmc Acadia Sl Sport Utility 4-door 3.6l on 2040-cars

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GMC Sierra Denali CarbonPro bed is finally, almost here

GMC revealed the Sierra 1500 with the optional CarbonPro bed on March 1, 2018. The bed wasn't available at launch, though. You can't buy it now, either, but it will hit dealerships with limited availability after production starts in early June, exclusively for the Denali 1500 and AT4 1500 trims. The carbon floor and sides replace the steel panels in a normal bed, providing "strength, durability, and scratch resistance" and a potential 59-pound weight saving, depending on the truck's configuration. To make sure the bed had a chance, development engineers replicated "extreme use scenarios" like dropping 1,800-pound gravel loads, 450-pound steel drums, and cinder blocks from various heights. They put a 250-pound man on a snowmobile with studded tracks, had him drive into the bed and then go wide-open throttle. We're told the result was "minimal scratching." On top of the extreme weather testing any vehicle goes through, the team also put a generator in the bed and aim the exhaust into a corner to ensure vibration and direct heat wouldn't deform the carbon fiber. Because of the finer shaping area-specific strength possible with carbon fiber, the bed provides one cubic foot of additional payload space by having its sidewalls pushed further out. The CarbonPro bed doesn't need a bedliner, and is grained at the top for better traction but smooth on the bottom for easier hosing down and dirt removal. Tie-downs at the front of the bed work with molded indentations to hold motorcycle tires, and slots in the sidewalls hold two-by-sixes. The truck maker says the carbon-lined payload area confers "best-in-class dent, scratch and corrosion resistance," but we suppose the nation's pickup truck army will prove that or not. The trucks likely won't have the hardest life at the start, since the Sierra Denali costs $56,790 before even a basic option like four-wheel drive. The real test probably won't come until around 2029, when third owners begin treating their aerospace-inspired thoroughbreds like dray horses.

2022 Hummer EV Edition 1 pickups ready to go to customers

It's official: Two years after GM announced the electric GMC Hummer pickup, the first couple dozen units have left the line at the GM Factory Zero Detroit-Hamtramck Assembly Center, according to GM president Mark Reuss. In an interview with CNBC to celebrate the milestone, Reuss said 17 Hummer EVs are ready for delivery to customers. This makes the Hummer the first of GM's new Ultium-based EVs to leave the factory, and the second electric pickup on the market after the Rivian R1T. The first 1,200 Hummer EVs made will be Edition 1 models, all of which are Interstellar White outside with Lunar Horizon interiors and bronze badging. Each of the $112,595 pickups is powered by three Ultium motors producing a GM-estimated 1,000 horsepower and 11,500 pound-feet of torque, loaded with features like height-adjusting adaptive suspension, skid rails and rock sliders, 35-inch tires, the diagonal-driving CrabWalk, the launch control system Watts to Freedom that unlocks a three-second sprint to 60 miles per hour, and Super Cruise. Range is a GM-estimated 329 miles when the 200-kWh battery is fully charged. As these filter out to eager owners, GM is prepping the next four phases of the Hummer rollout. About a year from now, in autumn of 2022, Factory Zero will begin production of the first widely available Hummer, the EV3X pickup that starts at $99,995 before destination. Three Ultium motors will provide an estimated 800 horsepower and 9,500 pound-feet of torque to a range estimated beyond 300 miles. Spring of 2023 is expected to deliver the Hummer EV2X pickup at an MSRP of $89,995, utilizing two motors producing a total 625 hp and 7,400 lb-ft over a range also estimated to go beyond 300 miles. Around the same time, the first units of the $105,595 Hummer SUV Edition 1 are planned to head down lines at Factory Zero. Finally, in the spring of 2024, the entry-level $79,995 Hummer EV2 pickup and its two-motor powertrain should arrive, making the same output as the EV2X, but only good for a range of around 250 miles. That won't be all we see from Factory Zero, either. GM invested $2.2 billion in the Detroit-Hamtramck plant that once built bread-and-butter GM fare like the Chevrolet Impala, Buick LaCrosse, and Oldsmobile Toronado in order to turn the facility into its first EV base of manufacturing operations for Ultium products. The battery-electric Chevrolet Silverado and GMC Sierra pickups will be built there, as will the Cruise Origin robotaxi.

GM faces possible class action lawsuit over 8-speed transmission

General Motors has been hit with a class-action lawsuit from owners who allege the eight-speed automatic transmission found in several rear-wheel-drive Chevrolet, Cadillac and GMC models between the 2015 and 2019 model years has a defect that causes the vehicles to hesitate and jerk when accelerating or slowing down. The lawsuit was posted to ClassAction.org and spotted by GM Authority. Problems with GM's Hydra-Matic 8L90 and 8L45 transmissions have been well-documented on Internet forums and via complaints filed with the National Highway Traffic Safety Administration, with many reporting damage to their vehicles. The lawsuit was first filed in December in U.S. District Court for the Southern District of Florida but appears to have been transferred recently to New York. Autoblog sought comment from Theodore Leopold, the lead attorney for the plaintiffs. "These transmissions have a common defect," the complaint reads. "Drivers attempting to accelerate or decelerate their cars feel a hesitation, followed by a significant shake, shudder, jerk, clunk, or 'hard shift' when the vehicle's automatic transmission changes gears." The problem also occurs when the vehicles accelerate in a single gear, without shifting, the plaintiffs allege. "Drivers have reported that the shift is sometimes so violent, they feel as though they have been hit by another vehicle." The problem is believed to center on the transmission, torque converter or both. The complaint says it causes undue friction, causing hydraulic systems and gears to function improperly and sometimes leaves metal shavings throughout the transmission, leading to costly repairs and replacement of parts or the entire transmission. It says GM has known about the problems since shortly after it introduced the transmissions, and has issued 13 technical service bulletins, none of which have resolved the problem. GM declined to comment on the lawsuit. The plaintiffs say GM should have warned consumers about the issues and covered repairs under each vehicle's three-year/36,000-mile bumper-to-bumper warranty. They're seeking statewide classes in at least six states: California, Florida, Illinois, New York, Oklahoma and Texas.