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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.

2015 Chevy Silverado, GMC Sierra recalled for steering issues

DETROIT — General Motors Co is recalling more than 1 million pickup trucks and sport utility vehicles in the United States due to issues with a temporary loss of power steering, the National Highway Traffic Safety Administration said. The recall is for 2015 models. They are: the Chevy Silverado 1500, Suburban and Tahoe, GMC Sierra 1500, Yukon and Yukon XL and Cadillac Escalade. The problem may cause difficulty steering the vehicle, especially at low speeds, increasing the risk of a crash, the auto safety regulator said in a document dated Sept. 12. The document did not highlight any reports of accidents and injuries, because of the power steering issue. GM dealers will update the power steering module software, free of charge for owners of the affected vehicles. In 2014, the No.1 U.S. automaker had recalled nearly 800,000 pickup trucks worldwide because of the same problem. GM did not immediately respond to a request for comment.Related Video:

Best midsize trucks for 2024

Pickup trucks are hugely popular in the United States, but most of them carry huge dimensions and huge price tags to match. That's where the rapidly expanding midsize truck market comes into play. With options from nearly every major manufacturer in America, there are plenty of midsize trucks to consider, but the best midsize pickup trucks are more comfortable, more capable off-road or more luxurious than the rest of the crowd. Put simply, there's an excellent midsize truck for every buyer, whether they want to save money with a low starting price and strong efficiency, tackle technical trails, surround themselves with leather and wood or even hit the road with the wind in their hair on their way to the beach. We've tested all of the midsize trucks in America available for 2024 and picked out the best choices for any type of buyer. Read on to find out which option is the best midsize truck for you for 2024 or 2025 (expect more versions of the Toyota Tacoma and Jeep Gladiator in 2025, too). If you're needs don't require a midsize truck, you may want to consider a compact. There are only two for sale in 2024, and we break down our rankings here.   Best midsize trucks for 2024 2024 Chevrolet Colorado  Why it stands out: Good ride, handling; powerful engines; strong towing; refined interior; Google infotainment Could be better: Only one cab/bed combination (four door, short bed) Starting Price: $31,095 Read our most recent Chevrolet Colorado review Suffice it to say, we're big fans of the latest Chevy Colorado. In fact, we think the Colorado is the best midsize pickup truck in America overall. Thanks to the base WT offering, the starting price is reasonable, but the Colorado is really at its best in one of its more specialized forms. The Trail Boss expands its off-road capabilities with a suspension lift and chunky tires, the ZR2 adds an even larger suspension lift and a gaggle of off-road special bits and the ZR2 Bison tops the range with sensational Multimatic DSSV spool-valve dampers, special bumpers and underbody cladding for rock-crawling prowess. In between those specialist packages lie the LT and Z71 trims, which is what will make up the majority of sales. A low-power turbocharged 2.7-liter four-cylinder making 237 horsepower and 259 pound-feet of torque is standard, while the more common engine is a more powerful version with 310 HP and 390 lb-ft. A High-Output engine option keeps the same 310 HP but boosts torque to 430 lb-ft.