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1620 East Homer Adams Pkwy Alton, IL 62002

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2017 GMC Sierra 3500 Denali HD OVERVIEW Overview Icon

2017 GMC Sierra 3500 Denali HD in Alton

Our most powerful Duramax Diesel ever.

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  • HID Projector Beam Headlamps with LED Signature Lighting
  • Spray-on Bedliner
  • Bose® Sound System
  • 8-inch Driver Information Center w/ Color Customizable Display
  • 6.6L V8 DURAMAX Diesel
2017 GMC Sierra 3500 Denali HD Main Img

GMC Sierra 3500 Denali HD Dealer in Alton

2017 GMC Sierra 3500 Denali HD PERFORMANCE Performance Icon

2017 GMC Sierra 3500 Denali HD performance

Durable Soft-Touch Instrument Panel

The durable soft-touch instrument panel displays important information such as speed, RPMs, average fuel consumption, and other useful gauges.

2017 GMC Sierra 3500 Denali HD performance

High-Strength Steel

Nearly two-thirds of the Sierra cab structure is made from high-strength steels. It’s a fortress of strength that contributes to the Sierra’s quiet cabin. We also use high-strength steel in our fully-boxed frame rails and major frame cross-members.

2017 GMC Sierra 3500 Denali HD performance

All-New 6.6L Duramax Diesel Engine

The all new Duramax diesel engine provides your 3500 HD with an impressive 445 Horsepower, 910 lb.ft. of torque, and a 12% increase in horsepower and 19% increase in torque vs the previous 2016 model.

2017 GMC Sierra 3500 Denali HD performance

Signature Denali Grille

Denali style starts right up front with the unique signature three-bar chrome grille, featuring a distinct pattern and a finish that reflects light from every angle.

2017 GMC Sierra 3500 Denali HD APPEARANCE Appearance Icon

Cargo Box Spray-On Bedliner 2017 GMC Sierra 3500 Denali HD Appearance Main Img
2017 GMC Sierra 3500 Denali HD appearance

Cargo Box Innovation

The 2017 GMC Sierra 3500HD truck shows how our “Never Say Never” approach to engineering can transform working harder into working smarter. The truck’s high-strength steel bed includes innovative, intuitive features such as the CornerStep rear bumper with integrated handholds, which provides easy access to the box when the tailgate is lowered or up, and the available spray-on bedliner to protect your truck bed.

2017 GMC Sierra 3500 Denali HD appearance

Available Spray-On Bedliner

Our high-performance bedliner helps to protect your truck bed from scratches, dents and corrosion by providing it with a durable, watertight seal.

2017 GMC Sierra 3500 Denali HD COMFORT Comfort Icon

2017 GMC Sierra 3500 Denali HD comfort

Long Haul Comfort

Standard features include:
-Heated and ventilated, perforated leather-appointed front seats
-Heated and leather-wrapped steering wheel
-Durable soft-touch instrument panel
-Aluminum trim accents

2017 GMC Sierra 3500 Denali HD comfort

Intuitive Infotainment

The infotainment system on the 3500 Denali brings an IntelliLink 8" color-touch radio with navigation, access to phone, maps, and weather, Bluetooth® connectivity, and even download select in-vehicle apps via Shop.

2017 GMC Sierra 3500 Denali HD comfort

Enhanced Usability

Provides all occupants with a cool, comfortable driving environment with features like an available large center console with space for hanging file folders, and laptops, available 110V power outlet, available locking underseat storage on SLE models with bench seating, and an available wireless charging pad.

2017 GMC Sierra 3500 Denali HD comfort

Quiet Cabin

The Denali cabin is engineered to provide you and your passengers with a quiet, comfortable experience. The 3500 Denali's quiet cabin boasts triple door seals that help block outside noise, aerodynamic exterior mirrors that help reduce wind noise, and hydraulic body and engine mounts to help reduce vibration.

2017 GMC Sierra 3500 Denali HD SAFETY & WARRANTY Safety Icon

PRO GRADE PROTECTION

Standard on every new GMC - GMC Pro Grade Protection has you truly protected with features and services including:

- Two maintenance visits
- 3-year / 36,000-mile Bumper-to-Bumper Warranty
- 5-year / 60,000-mile Powertrain Warranty
- 5-year / 60,000-mile Roadside Assistance & Courtesy Transportation
- 3-month trial of OnStar Guidance Plan with a suite of emergency security and diagnostic services
- 5-year OnStar Basic Plan

2017 GMC Sierra 3500 Denali HD Safety Main Img
2017 GMC Sierra 3500 Denali HD safety

Forward Collision Alert

If the system detects that a front-end collision situation is imminent while following a detected vehicle, the system alerts the driver to a potential crash. It also alerts the driver if the driver is following a detected vehicle much too closely.

2017 GMC Sierra 3500 Denali HD safety

Trailering & Hauling Capability

The 3500 Denali has a maximum conventional trailering capacity of 20,000 lbs, maximum Fifth-Wheel/ Gooseneck rating of 23,100 lbs, and a maximum payload of 6,112 lbs. A strengthened driveline means stronger front prop shaft with larger U-Joints and the available Integrated Fifth-Wheel / Gooseneck Prep Package enhances your hauling capabilities.

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