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GM opens official investigation into C8 Corvette transmission leaks

In March 2020, a month after Chevrolet began customer deliveries of the 2020 C8 Corvette, a GM dealer technician created a Reddit thread about a leaking gearbox in a Corvette with 32 miles. That car hadn't even been sold yet. Since then, as a search of "C8 Corvette transmission leak" shows, it's been tales of woe for some owners. Something in the Tremec TR-9080 transaxle in the back of the mid-engined Corvette doesn't work as it should, the fault able to cause codes that the transmission needs service, or that the driver needs to shift to park. In some cases, the battery would die because of follow-on issues after the initial transmission code, that code preventing the car from powering down. As Autoevolution reports, GM filed paperwork with the National Highway Traffic Safety Administration in August to look into what's going on. Between forum threads and GM's investigation document, there are several issues mentioned. The most common appears to be the dual-clutch transmission leaking fluid due to gasket failures like the one suffered by one owner at 858 miles, and another for an owner currently enduring a second leaking transmission. The Midengined Corvette Forum reported that Chevy engineers redesigned the TR-9080 pan, fitting Corvettes with the new unit at some point in the 2021 model year. The original pan was stamped steel unit affixed to the engine with two studs and 13 bolts, plus "reinforcement plates." The updated pan is said to be a cast aluminum unit affixed with two studs and 17 bolts, omits the reinforcement plates, and gets a new machined new groove around its edge to seat the gasket seal. The GM paperwork now at the NHTSA mentions a P1789 code, and says one reason for it could be "debris on the park position sensor magnet causing an incorrect position reading to the TCM." This might be caused by another issue mentioned in forums, which is clogged transmission filters. GM gives instructions for returning transmission filters to the company, and a poster on one forum said the Corvette tech at the dealer where he bought his Corvette told him the automaker "requires every used transmission filter to be returned to GM."  Whatever's going on, the problems haven't stopped, and they go beyond the P1789 code. Over the weekend, a 2022 Corvette owner posted on Corvette Forums that he got a check engine light on his car after just 850 miles.

2017 Chevrolet Trax brings its fresher face to Chicago

The 2017 Chevrolet Trax's facelift does wonders for the compact crossover's looks. There's nothing overly offensive about the model's current design, but it's rather drab, especially at the front. As you can see from these live photos from the Chicago Auto Show, the revised Trax simply looks more modern than the current model. It now wears narrower wraparound headlights that integrate nicely with the upper level of the grille. The lower portion of the front end gets a more angular shape, and there are big crevices for the foglights. The rear also has small revisions, including new taillights and tiny changes to the bumper. With this refresh, Chevy has brought its little CUV's looks closer in style to the brand's stalwart sedans, the Cruze, Malibu and Impala. Inside, the Trax now features analog instruments for the speedometer and tachometer, but there's still a big screen on the right side to display vehicle information. The CUV also gets Chevy's seven-inch MyLink infotainment system that buyers can option with Apple CarPlay, Android Auto, and 4G LTE support. Active safety tech like side blind zone alert, rear cross traffic alert, forward collision alert, and lane departure warning are available on the 2017 model, too. While the 2017 Trax looks a lot better, it's the same vehicle mechanically. It won't arrive at dealers until this fall, but you can check one out now in our gallery above. Related Video: Chevrolet Introduces 2017 Trax Fresh design, premium interior complement safety, connectivity enhancements CHICAGO – Building on its early success and the rapid growth of the segment, Chevrolet today introduced the 2017 Trax – a more expressive take on one of America's best-selling small SUVs. Contemporary design elements, including an all-new front-end appearance, and a new premium interior compose the visual updates, while new available active safety features and a new infotainment system – with available Apple CarPlay and Android Auto compatibility – expand its range of customer-focused technologies. "In the fastest-growing segment, Chevrolet Trax's momentum is sure to continue with great design enhancements, premium details, and the latest technologies," said Steve Majoros, director of marketing, Chevrolet Cars and Crossovers.

Here are the best-selling cars and trucks from January 2015

Every month, Autoblog slogs through all the sales figures reported by automakers that do business in the United States, and, after a little bit of sorting, we put it into an easy-to-read chart in an attempt to make it as easy as possible to follow the ins and outs of sales and shipments. But that only covers the brands themselves, not the individual models they sell. And we think you'd all be interested in knowing which vehicles beat their rivals in sales from month to month, so we've put together this handy gallery to keep you in the know. While the leader of the pack may not come as much of a surprise, the order that the top ten finishes in changes frequently – due to automaker deals, the price of gas, etc. – and we've included some statistics to help you see how their current performance stacks up to month's past. Click here to see January 2015's Top Ten Best-Selling Cars And Trucks In America. By the Numbers Chevrolet Ford GM Honda Nissan RAM Toyota Car Buying