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Auto review: GMC updates the Sierra HD for 2020, including latest high-end Denali model

Emma Jayne Williams, Fort Worth Star-Telegram on

Published in Automotive News

GMC's Sierra 2500 HD (heavy duty) is a capable work truck with a heart of comfort and luxury.

The next generation 2500 Sierra Denali for 2020 comes in four-wheel-drive Crew Cab with a six-foot, nine-inch standard bed or an available eight-foot bed. Base price is $63,700 (plus $1,595 freight), with the longer bed adding $200.

For 2020, the Sierra 2500 Denali is larger and bolder, the purpose-built exterior pairing functional design with exclusive style.

New features include a Side Bed Step in front of the rear wheel arches, power-adjustable trailer-tow mirrors, a Bed View Camera (Denali Ultimate Package, $2,870), camera-based Adaptive Cruise Control andHD Surround Vision (Ultimate Package).

Side Bed Step complements the Corner Step rear bumper for easy access. Door-mounted, heated, chrome-capped trailer-tow mirrors fold, extend and retract at the touch of a button and feature auto-dimming upper glass, lower convex mirrors, LED turn signal/clearance lights, distinct front-facing vertical LED task lights andrear guidance lights (to enhance visibility when backing with a trailer.)

The Bed View Camera, integrated into the Center High Mount Stop Lamp provides an elevated view of the bed to assist with fifth-wheel or gooseneck hitching and to check cargo. Adaptive cruise maintains a set speed and also a set following distance from preceding traffic. Surround Vision uses cameras mounted in the front, rear and sides to provide clear views in all directions.


The Ultimate Package also brought a Rear Camera Mirror, multi-color 15-inch Head-Up Display anda power sunroof. Rear Camera Mirror projects a wide-angle image from a rear camera to the rear-view mirror.

My ruggedly handsome Sierra 2500 Denali was Carbon Black Metallic ($495) with signature multidimensional Denali grille featuring high-gloss mesh and chrome inserts, chrome vertical front recovery hooks, chrome six-inch assist steps anddistinct 20-inch multidimensional polished aluminum wheels with all-terrain tires.

High-intensity LED headlights, signature C-shaped LED light-blade daytime running lights, LED taillights andfog lights are standard.

Power was provided by a 445-horsepower 6.6-liter Duramax Turbo-Diesel V-8 engine ($9,750), connected to an Allison 10-speed automatic transmission, producing up to 910 foot-pounds of torque. Air drawn through the hood scoop and the large front grille by the dual-path Diesel Intake System provided cooler induction air to maximize horsepower and optimize trailering performance.


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