2025 GMC Sierra 1500 Denali Ultimate 4WD with Duramax Turbo-Diesel

Vehicle file

Lot basics

VIN

1GTUUHE82SZ302634

Drivetrain

4WD

Fuel

Diesel

Exterior

Sterling Metallic

Interior

Alpine Umber

This Sierra Denali Ultimate is powered by the Duramax 3.0-liter turbo-diesel inline-six, paired with a 10-speed automatic transmission with Electronic Precision Shift. The engine has automatic stop/start. Four-wheel drive runs through a two-speed electronic Autotrac transfer case with push-button control, backed by an auto-locking rear differential, a 3.23 rear axle ratio, and hill descent control. It is rated at 22 mpg city and 26 mpg highway. It also has an engine block heater, a heavy-duty air filter, a 220-amp alternator, a dual exhaust system, and capless fuel fill. For towing, the truck has the Trailering Package with a trailer hitch, 7-pin and 4-pin connectors, Hitch Guidance, and an integrated trailer brake controller. It also has the In-Vehicle Trailering App, which provides checklists, maintenance reminders, security alerts, and electrical diagnostics. Trailer tire pressure monitoring sensors for up to six wheels are included. Trailer side blind zone alert, Hitch View with pan, zoom, and tilt, trailer camera provisions, and electronic trailer sway control round out the towing setup. The cabin has front bucket seats trimmed in Alpine Umber full-grain leather. The driver and front passenger seats are heated and ventilated, and the rear outboard seats are heated. The steering wheel is heated, and the column has power rake and telescoping adjustment. The rear seat is a 60/40 folding bench with seatback storage, a fold-out armrest with two cupholders, and full-width under-seat storage. A floor-mounted center console offers cupholders, phone storage, cord management, and hanging file folder capability. Comfort and convenience features include dual-zone automatic climate control with rear air vents, a power sunroof, keyless open and start with push-button start, and a remote starter. It also has a power sliding rear window with defogger, rain-sensing wipers, and a universal home remote. Power-retractable MultiPro Power Steps articulate rearward to give access to the bed. The truck also offers wireless charging and a 120-volt interior outlet that shares 400 watts with an outlet in the bed. There are two charge/data USB ports in the center console and two USB-C charge-only ports in the rear. Technology centers on a 13.4-inch touchscreen infotainment system with Google built-in apps, including navigation and voice assistance. The system supports wireless Apple CarPlay and Android Auto and offers a Wi-Fi hotspot. The driver has a 12.3-inch reconfigurable digital gauge display and a 15-inch multicolor head-up display. Audio comes from a 12-speaker Bose Premium Series system and a Kicker audio system built into the MultiPro tailgate, with SiriusXM 360L. OnStar services are supported. Driver-assist and safety features include a hands-free driver assistance system with automatic lane changes. It also has forward collision preparation with front pedestrian detection and braking, a following distance indicator, front and rear ultrasonic park assist, and HD Surround Vision. Rear cross traffic braking, rear pedestrian alert, and Buckle to Drive are included as part of GMC Pro Safety. Airbags include dual-stage front airbags, front seat-mounted side airbags, and head-curtain airbags for the front and rear outboard seats. StabiliTrak has proactive roll avoidance, traction control, and hill start assist. The brakes are four-wheel discs with ABS and Duralife rotors. The bed is a carbon fiber composite unit with LED cargo lighting, 12 fixed tie-downs, top bed rail and tailgate caps, a bed view camera, and a CornerStep rear bumper. The MultiPro tailgate offers six load and access functions, with EZ Lift and power lock and release. Exterior details include a high-gloss black header with the signature Denali grille in Vader Chrome and Vader Chrome GMC logos. Chrome door handles, mirror caps, window surrounds, and recovery hooks are included, along with body-color wheel arch moldings, deep-tinted glass, and LED fog lamps. The truck also has LED signature taillamps with animated lighting and perimeter lighting. It rides on 22-inch seven-spoke ultra-bright machined wheels with 275/50R22 all-season tires and a full-size 17-inch steel spare. The suspension is the Denali Premium Suspension with Adaptive Ride Control, mounted on a frame with a fully boxed hydroformed front section. Steering is electric rack-and-pinion.

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