2012 Gmc Sierra Sle 1500 5.3 6 Speedauto 4wd on 2040-cars

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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.

GMC Terrain's first generation could get recalled for headlights

According to Car Sales Base, GMC sold 745,454 Terrain crossovers from the end of 2009 to the end of 2017, all but a few of them representing the first-generation model years of 2010 to 2017. According to the National Highway Traffic Safety Administration, the carmaker will need to recall almost all, due to a problem with excessively bright headlight reflections. NHTSA takes issue with the fact that federal motor vehicle regulations stipulate how bright headlight reflections are allowed to be within a certain arc of the headlight beam axis. In a certain area of the arc, the Terrain throws two small spots of light that are about 450 to 470 candela strong where the legal maximum at that point is 125 candela — one candela being equivalent to the light from one candle. The NHTSA wants the headlights replaced for being close to four times over this reflective limit, alleging this can cause "glare to other motorists driving in proximity." GM discovered the noncompliance in 2019, then filed a notice of noncompliance that requested an exemption from having to recall the crossover. GM's counterpoint to NHTSA was that the two areas of illegality were 80 degrees outboard of the headlight and 45 degrees up. You'd have to be Slenderman or a giraffe standing on the side of the road — our words, not GM's — to be blinded by the light. The automaker hadn't heard of any incidents nor complaints over the issue. The only customer feedback GM received was a Terrain driver saying the "left headlamp seems to have a portion of the light that shines up in the trees at near a 45-degree angle." Note, that's the left headlight, so the tree in question would likely be on the other side of the road. GM said oncoming traffic wasn't impaired by the excessive brightness. Due to these these mitigating factors, GM asked for an exemption from recalling the Terrains.    This week, NHTSA denied GM's petition.

2021 GMC Yukon starts at $51,955, just $100 more than outgoing model

The 2021 GMC Yukon and Yukon XL have prices, and they're bargains considering the upgrades the new model delivers. The base Yukon SLE starts at $51,995 after the $1,295 destination charge, a $100 premium over the current model. The extended wheelbase Yukon XL in base SLE trim starts at $54,695, the same price as the outgoing model. The price for all-wheel drive stands pat for trims that make it an option, at $3,000. Prices for the two-wheel drive Yukon and Yukon XL trim steps are below, with price differences compared to the 2020 models. Keep mind that the new AT4 trim comes standard with AWD, so the AT4 is in a sense closer in price to the SLT and further from the Denali than it appears here: Yukon SLE: $51,995 (+ $100) Yukon SLT: $59,095 (- $810) Yukon AT4: $66,095  Yukon Denali: $69,695 (+ $800) Yukon XL SLE: $54,695 (No change) Yukon XL SLT: $61,795 (No change) Yukon XL AT4: $68,795 Yukon XL Denali: $72,395 (+ $600) The drop in price on the Yukon SLT is in comparison to the 2020 Yukon SLT Standard Edition trim, not the lower-spec SLT trim. The new Yukon comes in at $1,700 more than the 2021 Chevrolet Tahoe, the same price difference in effect between the Yukon XL and Suburban. The standard Yukon is powered by a 5.3-liter V8 with 355 horsepower and 383 pound-feet of torque, the same specs as found in both the Tahoe and Suburban. The Yukon Denali trims, as with the High Country trims on the Chevy twins, outdo the 5.3-liter with a 6.2-liter V8 making 420 hp and 460 lb-ft. Both engines shift through a 10-speed automatic. Stuffing a Yukon XL Denali with options can take the MSRP beyond $80,000, thanks to available features like the panoramic sunroof, rear seat entertainment, air suspension, and Magnetic Ride Control Suspension.   We're still awaiting pricing for the coming 3.0-liter Duramax inline-six with 460 pound-feet of torque, which we expect closer to the on-sale date for the new full-sized SUVs.  Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Bronco, Yukon, Hummer and a CES recap | Autoblog Podcast #610