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2022 Chevy Tahoe, Suburban and GMC Yukon get updated transmission

General Motors' full-sized SUVs have slipped in one more change before the year turns. GM Authority reports that the 2022 Chevrolet Tahoe and Suburban, and the 2022 GMC Yukon and Yukon XL equipped with gas V8 engines, will pick up a revised ten-speed automatic transmission. The new unit carries RPO code MHS, and Chevrolet communications rep Catherine Scales told GMA the updated gearbox "allows our manufacturing and dealer teams to more easily align the specific calibration needed for the transmission and can enable OTA updates in the future." It seems GM wants to make it easier to update the transmission's tuning and calibration in the future with the automaker's networked Vehicle Intelligence Platform/Global B electronic architecture. The 10-speed auto comes bolted to the 5.3-liter V8 and the 6.2-liter V8. The 3.0-liter inline-six Duramax diesel continues with the 10-speed automatic already in use. To recap the other changes for the full-sizers, we'll start with the 2022 Tahoe and Suburban, which get a new 12.3-inch digital instrument display to replace the former 8-inch unit and physical gauges. Navigation will be standard equipment displayed on the 10.2-inch infotainment touchscreen on all trims barring the base LS. Lane-keeping assist and parking sensors are also now standard, while reverse automatic braking is added to the Enhanced Display and Alert package on the top trims. Finally, the 6.2-liter V8 option is expanded to the Z71, RST and Premier trim levels, but it requires selecting one or more packages on the Z71 and RST. Moving onto the 2022 Yukon, availability of the 6.2-liter V8 expands to the AT4 trim, and the big V8 comes with a shiny pair of exhaust finishers. Redwood Metallic paint joins the exterior color palette, more wheel options are on offer, and illuminated sill plates can gussy up the rocker panels . An Enhanced Trailering Technology Package adds 13 cameras with the option for an interior accessory camera for those with enclosed haulers. On the safety side, expect reverse automatic braking to join the list of available driver assistance features. Inside, the Yukon welcomes the 12.3-inch digital cluster, the Yukon Denali welcomes the power sliding console as a standard feature instead of a $350 option.  Related Video:

GM diesel pickups first to undergo extra EPA, CARB testing

The effects of Volkswagen's long-running diesel emissions evasion are starting to spill over to other automakers, but General Motors is taking things in stride. The 2.8-liter, four-cylinder Duramax in the 2016 Chevrolet Colorado and GMC Canyon is the first engine to get extra scrutiny by the Environmental Protection Agency and the California Air Resources Board, Automotive News reports. Rather than just the usual in-lab test, it's also being checked on the road. However, the extra evaluation shouldn't have any impact on when the trucks with his mill hit dealers later this fall. "We're in our final stages of the EPA certification, and our launch is on track," Chevy spokesperson Otie McKinley tells Autoblog. The four-cylinder diesel in the trucks makes 181 horsepower and 369 pound-feet of torque, and the automaker is touting low NOx production. In the announcement for the Colorado's specs, the company calls it "the cleanest diesel truck engine ever produced by General Motors." The tech includes exhaust gas recirculation to lower combustion temperatures and improve emissions. There's also a urea tank like on the bigger diesels for full-size trucks, and it gets refilled in time with oil changes. An indication on the instrument panel lets drivers know when that's needed, too. Even with the more demanding testing, the company doesn't seem too worried about the four-cylinder passing. "Part of our development process is on-road and off-road [laboratory] testing," Scott Yackley, Chevy Trucks assistant chief engineer, said to Automotive News. In the wake of the VW scandal, the EPA has pledged more rigorous testing. Before, on-road emissions evaluations were largely limited to heavy-duty vehicles, but the agency has decided to apply the checks more often to other models. There's also now greater cooperation with Canadian authorities.

The GMC Hummer EV is big and fast; it's also a social conundrum

Pedestrian fatalities, unresolved safety issues, overachieving and overweight trucks — overweight electric trucks — and divisive attitudes about vehicles equipped as is the new Hummer EV, are very much on the mind of Robinson Meyer. Mr. Meyer, who suggests that the 1,000-horsepower pickup is a cross "between an ambulance and a race car," is a staff writer for The Atlantic, a well-respected, long-lived journal founded in 1857. His recent essay in the monthly's flagship magazine starts off describing a scary video clip posted online by Edward Barseghian that features the 9,000-pound Hummer hurtling full tilt towards three lanes of cars idling at a light (the driver stops it in time). Then he goes on to pretty much berate the machine. "The Hummer EV haters and lovers had discovered one of the most important facts about electric 'super trucks': They are very heavy, and they go very fast," he writes. "If you imagine an ambulance that can accelerate as fast as a Formula 1 car, youÂ’re imagining a vehicle only slightly more unwieldy than the new Hummer." Meyer goes on to discuss the issue of allowing battery powered vehicles that weigh as much as the Hummer does onto public roads. "The weight of EVs is a safety issue that drivers — and cyclists and pedestrians — will only have to keep worrying about as these cars go mainstream," he explains. "Suffice it to say that cars as huge as the Hummer EV need to face some kind of regulation, especially in cities and towns, where they pose a distinct threat to the public." To Hummer devotees, them's fightin' words. But Meyer takes pains to present a sort of response from Anthony Schiavo, a research director at Lux Research, a global advisory firm: Why is the Hummer so heavy if its batteries weigh only about 3,000 pounds? “ItÂ’s absolutely a design choice and a marketing choice,” Schiavo answers. “People like larger vehicles, and the reason why those larger vehicles are getting made is because they sell.” The author concludes by bringing into his thesis the issues of climate change, liberal and conservative politics. In some places, his arguments wander; they become muddled. But for those enthused about electrics and big trucks, "Frankenstein's Hummer" is worth a read. Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.