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Canada opens probe into 250,000 GM pickups, SUVs over brake performance

Transport Canada, the auto safety regulator, has opened a probe into braking issues in nearly 250,000 General Motors full-size pickups and SUVs after U.S. officials launched a similar probe last year, the agency said on its website. The U.S. National Highway Traffic Safety Administration (NHTSA) in November into 2.73 million U.S. 2014-2016 model year SUVs and pickups after receiving 487 reports of hard brake pedal effort accompanied by extended stopping distance that were attributed to deterioration of the engine-driven brake assist vacuum pump. Transport Canada's probe covers 249,700 2015 through 2017 model year vehicles including the Cadillac Escalade, Chevrolet Suburban, Chevrolet Tahoe and GMC Yukon as well as 2014-2017 Chevrolet Silverado LD and GMC Sierra LD vehicles. The U.S. agency said it had reports of nine incidents of vehicles incurring damage as a result of colliding with another vehicle or fixed object at low speeds and reports of two injuries. NHTSA said if the pump fails to operate, the amount of brake power assist can be significantly reduced, extending vehicle stopping distance. The NHTSA sent GM an information request in a Feb. 7 letter. A GM spokesman said he had no update on the investigation. Reporting by David Shepardson; editing by Jonathan Oatis

The Chevrolet Camaro 1LE returns with V6 or V8 power

The Chevy Camaro's performance variants are legendary, and enthusiasts have long lusted after the Z/28 and ZL1. But there's a lesser-known model that shouldn't be overlooked: the 1LE. It's Camaro code for performance on the track. The 2017 Camaro 1LE debuts this week at the Chicago Auto Show and goes on sale late this year. The 1LE package will be offered for the first time on V6 Camaros, as well as the traditional V8-powered SS. The cars have upgraded suspensions, better brakes, aerodynamic treatments that create more downforce, and improved cooling features. The goal is simple: faster laps. "This is all grip and handling and cooling," said Todd Christensen, Camaro marketing manager. It's an enthusiast special, transforming your basic Camaro into a more capable track machine. The 335-horsepower V6 and 455-hp V8 are unchanged (and only come with six-speed manual gearboxes), because the focus is on improving the Camaro's reflexes. That means different things, depending on the engine choice. Here's how they break down. V6 1LE The V6's 1LE package is based on the LT trim and it pilfers the best chassis pieces from the V8 model, including the FE3 suspension with stabilizer bars. It also has a mechanical limited slip differential (3.27 ratio) and four-piston Brembo brake calipers in front. The fuel system is also borrowed from the SS, and it all rolls on 20-inch forged aluminum wheels wrapped in Goodyear Eagle F1 rubber measuring 245/40R20 in front and 275/35R20 in back. Christensen says Chevy added the 1LE pack for the V6 because customers actively wanted it, and for a reasonable price (we hear the 1LE will cost about the same as the fifth gen's $3,500 option) they can transform their V6 into a car that's as track capable as the SS. While it's giving up 120 hp, a V6 Camaro 1LE will also be more than 200 pounds lighter than the eight-cylinder 1LE. Chevy noticed the customer interest for a V6 1LE and will study offering the pack on Camaros with the turbocharged four-cylinder engine. Consider the V6 a test case. "I'm anxious to get some customer feedback [from the V6]," Christensen said. SS 1LE Even though it's heavier, the SS 1LE offers a lot of goodies that make it three seconds faster than a normal SS, according to Chevy's testing at Willow Springs Raceway in the California desert. The spotlight features in the SS are Magnetic Ride Control for the FE4 suspension and electronic-slip differential (3.73 ratio).

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.