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Next-gen Chevy Silverado and GMC Sierra may use carbon fiber

It's been generally accepted that the next generation of full-size GM trucks will use some sort of strong, lightweight material for the beds while retaining steel for the cab. While aluminum seems like the most obvious choice, according to Automotive News, the Chevy Silverado and GMC Sierra will incorporate both aluminum and carbon fiber in their beds. The publication cites sources from within GM, though it seems the introduction of this comparatively exotic material mix is still a few years off. While carbon fiber is both stronger and lighter than steel and aluminum, it takes significantly more time and money to produce, essentially relegating the material to small-volume cars. The main benefit for trucks is the resulting reduction in weight to improve fuel economy without sacrificing the tough, rugged capabilities truck buyers expect. The Ford F-150 made the switch to aluminum for the 2015 model year and it's proved highly successful. It seemed like it was only a matter of time before the competition followed suit. Automotive News says that the next-gen trucks will launch with aluminum beds and that it will take a couple of years before we'll see any carbon fiber incorporated into the design. Even then, only look for the composite material on higher-trim models, with a trickle down to lower-spec trucks possible further in the future. In 2011, GM announced it was working with Japan-based Teijin Limited on a carbon fiber reinforced thermoplastic. There's a good chance that material's introduction will be on trucks. Related Video: News Source: Automotive News Plants/Manufacturing Rumormill Chevrolet GM GMC Truck

Auto sales in March and first quarter down nearly across the board

Nearly every major automaker reported weak U.S. sales for March and the first quarter of 2019, citing a rough start to the year, but said a robust economy and strong labor market should encourage consumers to buy more vehicles as 2019 rolls on. GM, which no longer releases monthly sales figures, saw first-quarter sales fall 7 percent, with declines across all brands. Sales of Silverado pickup trucks fell nearly 16 percent and the high-margin Chevy Suburban large SUV dropped 25 percent. Ford also no longer releases monthly sales numbers, but is due to release its first-quarter sales figures on Thursday. According to industry data, Ford's sales fell 2 percent in the quarter and 5 percent in March. Ford representatives did not immediately respond to requests for comment. FCA reported a 7 percent fall in U.S. sales in March and a 3 percent drop for the first quarter. All of FCA's brands dropped in March, except for Ram, which saw a 15 percent increase in pickup truck sales. "The industry had a tough first quarter, but with spring finally starting to show its face and continued strong economic indicators ... we are confident that new vehicle sales demand will strengthen going forward," FCA's U.S. head of sales, Reid Bigland, said in a statement. Toyota reported a 3.5 percent fall in U.S. sales in March and 5 percent for the first quarter, hurt by declining demand for its Corolla sedans and Camry vehicles. "While some of our competitors are abandoning sedans, we remain optimistic about the future of the segment," Toyota said in a statement. Nissan posted a 5.3 percent drop in sales in March, and its first-quarter sales were down 11.6 percent. Honda and Hyundai bucked the trend. Honda's U.S. sales rose 4.3 percent in March and 2 percent in the quarter, while Hyundai's were up 1.7 percent and 2.1 percent, respectively. Passenger-car sales suffered throughout the January-March quarter compared with the same period in 2018 as Americans continued to abandon them in favor of larger, more comfortable pickup trucks and SUVs, which are far more profitable for automakers. The battle for market share in the particularly lucrative large-pickup truck market intensified in the quarter, as Fiat Chrysler Automobiles' Ram brand outsold the U.S.' No. 1 automaker General Motors' Chevrolet-brand trucks. The two automakers have both launched redesigned pickup trucks.

NHTSA closes 4-year GM investigation, issues common sense advisory [w/video]

Since January 2011, the National Highway Traffic Safety Administration has been investigating a possible problem with corroding brake lines in General Motors' GMT800-platform models, like the Chevrolet Silverado and Suburban and GMC Sierra, in states with salt on their roads in the winter. However, as opposed to launching a full recall of millions of vehicles, the government is issuing a common-sense safety advisory to all drivers in snowy states to keep their vehicle's undercarriage clean. It even has a video explaining things. "Older-model vehicles, often driven in harsh conditions, are subject to corrosion over long periods of time, and we need owners to be vigilant about ensuring they, their passengers, and others on the roads are safe," said NHTSA Administrator Mark Rosekind in the announcement of the end of the investigation. The agency was clear in its report that "brake line corrosion seen in the GM vehicles was not unique," and the government "has not identified a defect that would initiate a recall order." Instead NHTSA is advising drivers, especially those of vehicles from before 2007, to wash their vehicle's undercarriage in the winter and spring to remove salt or other de-icing chemicals. It also recommends regular checks by a mechanic to make sure everything is in proper order. According to the investigation documents, for just the GMT800 platform models, NHTSA found 3,645 complaints of brake line corrosion, which included allegations of 107 crashes and 40 injuries. The issue was found to be more common in vehicles over 10 years old. GM has released a statement (embedded below) that the company "supports the consumer advisory from NHTSA urging regular maintenance and care of brake lines on older vehicles." NHTSA Closes Investigation into Brake-Line Failures NHTSA 13-15 Thursday, April 9, 2015 Agency issues safety advisory on preventing undercarriage corrosion WASHINGTON – The Department of Transportation's National Highway Traffic Safety Administration (NHTSA) today issued a Safety Advisory and consumer video encouraging owners of model year 2007 and older trucks, SUVs and passenger cars to inspect brake lines and thoroughly wash the underside of their vehicles to remove corrosive salt after the long winter in order to prevent brake-line failures that increase the risk of a crash.