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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.

GMC Terrain headlight recall fix is a sticker

This GMC Terrain recall over a headlight issue has gone from fascinating to absurd. It started when GMC discovered the headlights on the 2010-2017 Terrain were out of compliance with Federal Motor Vehicle Safety Standards (FMVSS). A pinpoint of low-beam light was being reflected off the high-beam reflector. This bounced a tiny sliver of bright light up into the trees and the sky beside the road, not into oncoming traffic. GMC did the right thing, reporting the noncompliance to the National Highway Traffic Safety Administration. Because the sliver of light was coming from the low beams and was four times brighter than the maximum allowable low beam brightness, the NHTSA told GMC to recall 740,581 units of the SUV. GMC asked for an exemption, admitting the bright spot could cause glare while noting the errant beam didn't affect other road users. The automaker hadn't received any complaints, only a comment from one owner saying the lights put a bright spot in the trees on the other side of the road. The NHTSA denied the request. GMC began notifying owners in April that they'd need to come in for a fix once a fix had been developed. That's the fascinating part. The absurd part, which Tire Meets Road uncovered, is that the fix is a "Headlamp Applique Kit." Which is a piece of frosted tape applied to the outside of the headlight that lets low-beam light through and tamps down any potential glare from the caroming beam. Notice that the parallelogram of frosted tape matches the L-shaped frosted area along the inside of the headlight housing. That portion was already a feature of the lamp, as can be seen in our 2016 Terrain Denali Quick Spin. The repair needs a trip to the dealer for a tech to place a positioning template over the headlight and put the applique kit in the proper spot. GM's instruction kit says the whole thing should take 0.2 of an hour, or 12 minutes—about the time it it would take to get checked into and out of the dealership service department. Owners aren't impressed, some calling the fix unnecessary and ridiculous, and the tape should make it clear that GMC feels the same way. Some owners have said they're going to skip the recall. Those drivers will find that just as GMC couldn't escape the legal ramifications, neither can they. Local motor vehicle bureaus keep track of recall compliance.

2019 GMC Sierra carbon fiber bed: How it's made

FORT WAYNE, Ind. — The redesigned 2019 GMC Sierra has some pretty nifty features, and the one that has had the most attention is the MultiPro flipping and folding tailgate. But the Sierra also features the first-of-its-kind carbon fiber truck bed. It's interesting, of course, for its capabilities, such as being 62 pounds lighter than the all-steel box. It even adds more cargo volume since the material can be assembled and shaped differently from steel. As it turns out, the assembly process is cool, too, which we learned when GMC invited us to see the beds being made. Every GMC carbon fiber bed starts out as perfectly flat sheets of thermoplastic carbon fiber. The sheets consist of a mix of fibers and resins, a bit like the molded carbon fiber parts Lamborghini uses. The sheets are manufactured by Japanese company Teijin, which collaborated with GMC to develop the bed. They're all delivered to Continental Structural Plastics (CSP) in Fort Wayne, Ind., for construction into the actual bed. The company, a subsidiary of Teijin, makes a wide variety of composite and plastic parts for the car industry, including body panels for the C7 Chevy Corvette. The rectangular sheets are cut to shape and stacked up at a giant stamping press. Robots pick up sheets and slide them onto a conveyor that goes into a large oven. The heat softens the parts so they can be stamped. The large primary bed parts such as the base are stamped by CSP's enormous 3,600-ton press, and the smaller ones go through a 1,000-ton press. Each press can do different parts using different stamping dies, and CSP switches between dies to produce different batches of parts. After stamping, the parts roll out mostly ready for assembly, but there are rough edges that are trimmed off by water-jet cutters. These cutting machines also create holes for fasteners and for parts such as tie-down hooks and lights. The stamping process also provides the carbon fiber bed with a unique Easter egg. On the bottom of the base of the bed, there are two words: "Connors Way." This is a tribute to Tim Connors, who was the chief engineer of manufacturing at GM and a strong proponent of the carbon fiber bed. He was tragically killed in a motorcycle crash a few years ago. The words were added to honor him, and they were fortunately approved for production. There are some components to the bed that aren't stamped from the flat sheets of material.