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2015 GMC Yukon Denali / Denali XL Gets Eight-Speed Auto, Wi-Fi, and Other Mod-Cons


Big SUV receive new transmission as part of 2015 upgrades.

GMC has unveiled upgrades to its new 2015 Yukon Denali line, the most significant of which is the pairing of a new eight-speed automatic to the big SUV’s 6.2-liter V8. The new tranny will help the Yukon Denali better access the thick end of its 420 hp and 460 lb-ft of torque, while its lower 3.23:1 rear-axle ratio improves fuel economy. RWD Denali and Denali XL models get an extra mile-per-gallon on the highway, going from 15/21 to 15/22 mpg, while the carmaker insists it will also provide quicker shift times.

In addition, the 2015 GMC Denalis receives 4G LTE WiFi and wireless smartphone charging, a hands-free power liftgate, and an upgraded Intellilink infotainment system. All GM trucks with the 6.2-liter powerplant now come with the eight-speed auto as standard. Denalis will arrive at dealerships with the same tranny soon. The 2015 Yukon Denali starts from $64,965; the XL Denali from $67,665.

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