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2023 GMC Canyon debuts August 11

Chevrolet started GM's new-generation midsize truck party with the 2023 Colorado, now GMC's about to hit the stage with the 2023 Canyon. On August 11 at 11 a.m. Eastern time, we'll see what the new generation has done for the Colorado's upscale sibling. GMC teased us with a low angle of the coming Canyon in AT4X trim April. That revealed brawnier bits like big Goodyear Wrangler tires wrapped around 17-inch beadlock-capable wheels, plastic wheel arch flares, and rock rails. The initial version of that trim will be called the AT4X with Edition 1 Package, the front view showing split headlights, a new grille, thin LEDs, and a brush bar like the unit sprouting from nose of the Colorado ZR2 Desert Boss. We're also told there will be a "higher and wider stance, which is factory lifted." The current AT4 trim gets raised one inch, and we have a feeling the AT4X will get around three inches on its tippy toes just like the Colorado ZR2. The rationalization of body styles into a single Crew Cab Short Box will make ease configurations and production. Sadly, the 2.8-liter Duramax four-cylinder diesel is all but certain to be a goner here as well. The 2.7-liter four-cylinder gas engine should slip in here as the sole engine choice in two or three outputs. There's no telling which trims will get which outputs standard, but the choices are a base tune with 237 horsepower and 259 pound-feet of torque, a middle turbocharged tune with 310 hp and 390 lb-ft, and a high-output turboed topper with 310 hp and 430 lb-ft.   The 2023 GMC Canyon AT4X with Edition 1 Package will be available to order on the same day the lineup is revealed, at which time we expect to find out what's included in the Edition 1 versions compared to the AT4X variant that will join the lineup for series production. Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

GM recalls nearly 340,000 large SUVs to fix daytime running lights

General Motors has initiated a recall campaign for more than 338,000 of its large SUVs to address a potential defect in the onboard computer software that controls the daytime running lights. In some cases, the DRLs may remain on even when the headlights are enabled, which creates additional glare for oncoming drivers at night and fails to comply with federal regulations for headlight performance.  "GM determined that the body control module (BCM) software in these vehicles, under a combination of certain pre-conditions, may fail to deactivate the DRLs when the headlamps are on," GM's recall report said. "A regulatory assessment was conducted to evaluate whether the condition presented a potential noncompliance with the DRL activation requirements in S7.10.5, Table I-a. of FMVSS 108. On October 27, 2022, GM’s Safety Field Action Decision Authority (SFADA) decided to conduct a recall for potential noncompliance with this standard." GM says the recall covers the 2021 model year GMC Yukon and Yukon XL, 2021 Chevrolet Tahoe and Suburban, and 2021 Cadillac Escalade and Escalade ESV. The company says all models produced within that operating window include the improperly programmed body control module, meaning all vehicles within the recall population may exhibit the problem. The issue was discovered by a GM engineer during validation testing in August, prompting a deeper investigation and eventually leading to the recall itself.   The module's software can be updated by GM dealers, so it should be a quick fix for customers. Notifications will be mailed to owners in December.  Related video: Recalls Cadillac Chevrolet GMC Ownership Safety SUV Luxury

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.