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GM is the latest automaker accused of diesel emissions cheating

Volkswagen and Ram need to make room on the diesel-emissions bench for General Motors. America's largest automaker was accused in a lawsuit on Thursday of rigging hundreds of thousands of diesel trucks with at least three so-called defeat devices to ensure that the trucks would meet federal and state emission standards, even if they generated more pollution in real-world driving. According to the complaint, on-road emissions testing conducted for the plaintiffs found that Duramax-equipped trucks produced NOx pollutants, comprised of nitrogen and oxygen atoms, two to five times higher than legally permitted, and "many times" higher than their gasoline counterparts. The proposed class-action lawsuit was filed in federal court in Detroit on behalf of people who own or lease more than 705,000 Chevrolet Silverado and GMC Sierra pickup trucks fitted with "Duramax" engines from 2011 to 2016 model years. The lawsuit seeks remedies including possible refunds or restitution for lost vehicle value, plus punitive damages. It adds to legal problems for Detroit-based GM, which has already paid about $2.5 billion in penalties and settlements over faulty ignition switches linked to 124 deaths. GM joins at least five automakers whose diesel emissions have been scrutinized by regulators or consumers. They include VW, which has admitted to cheating; Mercedes-Benz parent Daimler; Fiat Chrysler Automobiles, Peugeot and Renault. GM spokesman Dan Flores called the claims "baseless," and said the trucks comply with US Environmental Protection Agency emissions standards and California's own tough standards. Shares of GM were down 69 cents, or 2.1 percent, at $32.50 in afternoon trading, after earlier falling to $31.93. The GM lawsuit was filed by several law firms, including Hagens Berman Sobol Shapiro, which helped reach multibillion-dollar settlements with VW on behalf of drivers and dealers. The case is Fenner et al v General Motors LLC et al, US District Court, Eastern District of Michigan, No. 17-11661. The named plaintiffs are Andrei Fenner of Mountain View, California and Joshua Herman of Sulphur, Louisiana. They said they would not have bought their respective 2011 Sierra and 2016 Silverado trucks, or would have paid less for them, had they known about the alleged rigging. Joseph Spak, an RBC Capital Markets analyst, in a research report said "negative publicity" from the lawsuit could drive buyers to trucks from Ford or even Fiat Chrysler's Ram.

GM confirms 2015 Silverado, Sierra to get 8-speed automatic

When viewed alongside the next Ford F-150 and the Ram 1500, there is one thing that seems to be missing from the Chevrolet Silverado and GMC Sierra. Where the F-150 will rely on turbocharging and aluminum architecture and the Ram sports an eight-speed automatic and an air suspension, the General Motors twins lack a big, calling-card feature. They're very good, very refined trucks, but one could argue that they're not terribly innovative.
And while it might not be as flashy a feature as air suspension or a lightweight skin, the Silverado and Sierra will get their own eight-speed automatic for 2015, a transmission that will be paired with the company's Ecotec3 6.2-liter V8. The new cogswapper will also find its way into the GMC Yukon Denali, but for now, there's no indication why the Cadillac Escalade, Suburban, Tahoe and standard Yukon are being left out.
According to GM, the new gearbox is about the same size and weight as the current Hydra-Matic 6L80 six-speed. By the time the new powertrain combination enters production late this year, the EPA will almost certainly have gotten around to certifying the vehicles' fuel efficiency. Until then, feel free to speculate. The current Silverado with the 6.2 and six-speed auto returns 14 miles per gallon in the city and 20 on the highway. How much do you think the eight-speed will improve those figures? Scroll down for the official press blast from General Motors, and then head into Comments.

GM will compensate SUV owners for fuel-economy error [UPDATE]

General Motors will offer debit cards to owners of some of its crossover SUVs after it was discovered that GM overstated the vehicles' fuel economy on window stickers, Automotive News says. GM will offer reimbursements to about 135,000 customers that are worth between $450 and $1,500 each. Some owners will also have the option of being provided with an extended warranty free of charge instead of the debit card. GM overstated fuel economy on about 170,000 vehicles by one to two miles per gallon because of what it has said was an inadvertent error stemming from not factoring the impact of emissions-related hardware into the EPA window-sticker figures. As a result, GM put a temporary stop-sale on the Chevy Traverse, GMC Acadia, and Buick Enclave before switching out the window stickers on about 60,000 vehicles. Automotive News says letters and debit cards will be sent out next week, and Reuters is estimating that the reimbursement program will cost GM about $100 million. With automakers ranging from Hyundai/Kia to Ford to, more recently, Volkswagen and Mitsubishi being ensnared by emissions or fuel-economy-rating issues, GM is working quickly to address the problem. For those curious, the reimbursement totals, factoring in current gas prices, the SUVs' combined fuel economy, and typical driving of about 12,000 miles a year, will provide between three and 12 months worth of free gas for those drivers (the models get either 17 or 18 miles per gallon combined, depending on front- or four-wheel-drive configuration). While about 135,000 customers will be reimbursed, Automotive News says the fleet buyers of about 35,000 crossovers haven't been addressed yet. UPDATE: GM spokesman James Cain, in an e-mail to Autoblog on Sunday, confirmed that the company will reimburse about 135,000 customers. Purchase customers will be given the option of a pre-paid debit card or a 48-month/60,000-mile protection plan, while lease customers will be offered the pre-paid debit cards. Most of the cards will have a value of between $450 and $900 on them. "We want all of our customers to have a great ownership experience, so we designed this reimbursement program to provide full and fair compensation in a simple, flexible, and timely manner," he wrote.