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1620 East Homer Adams Pkwy Alton, IL 62002

2024 GMC Sierra HD Denali OVERVIEW Overview Icon

2024 GMC Sierra HD Denali in Alton

  • Standard 6.6L V8 Gas Engine With Allison® 10-Speed Automatic Transmission
  • 13.4" Diagonal Center Touchscreen, 12.3" Diagonal Digital Driver Information Center and Available Multicolor 15" Diagonal Head-Up Display
  • Denali-Exclusive Authentic Open-Pore Wood, Patterned Aluminum Trim and Forge Perforated Leather Seating Surfaces
  • Automatic Emergency Braking
2024 GMC Sierra HD Denali Main Img

2024 GMC Sierra HD Denali MODELS

  • Sierra HD Denali

    Sierra HD Denali

  • Sierra HD Denali Ultimate

    Sierra HD Denali Ultimate

GMC Sierra HD Denali Dealer in Alton

2024 GMC Sierra HD Denali PERFORMANCE Performance Icon

2024 GMC Sierra HD Denali performance

ADAPTIVE CRUISE CONTROL WITH TRAILERING

Available Adaptive Cruise Control with trailering is an all-new technology for Sierra Heavy Duty. It allows the truck's Adaptive Cruise Control to account for additional drag and increased braking distances when towing a trailer.

2024 GMC Sierra HD Denali performance

ENHANCED 6.6L DURAMAX TURBO DIESEL V8 ENGINE WITH NEW TURBOCHARGER AND ALLISON® 10-SPEED TRANSMISSION

Sierra Heavy Duty’s world-class towing capability is enhanced for 2024 with an available 6.6L Duramax Turbo Diesel V8 engine and an all-new, more efficient turbocharger.

2024 GMC Sierra HD Denali performance

PROGRADE™ TRAILERING TECH

This advanced suite of available intelligent technologies helps streamline the hitching and towing process with integrated tools that help enhance your sense of safety, confidence and visibility.

2024 GMC Sierra HD Denali APPEARANCE Appearance Icon

2024 GMC Sierra HD Denali Appearance Main Img
2024 GMC Sierra HD Denali appearance

NEW FRONT BUMPER, FASCIA AND REDESIGNED DENALI CHROME GRILLE

A bold, updated front end further refines Sierra HD Denali’s striking good looks.

2024 GMC Sierra HD Denali appearance

20" ULTRA-BRIGHT MACHINED WHEELS WITH BRIGHT CHROME INSERTS

Sierra HD Denali stands out with available unique wheels on SRW models.

2024 GMC Sierra HD Denali appearance

POWER-RETRACTABLE ASSIST STEPS WITH LED PERIMETER LIGHTING

This available feature includes textured step pads to help provide secure footing and a Deploy Running Board mode for car washes. Illuminated power assist steps standard on Denali Ultimate.

2024 GMC Sierra HD Denali COMFORT Comfort Icon

2024 GMC Sierra HD Denali comfort

PREMIUM MATERIAL

Sierra HD Denali’s interior distinguishes itself with a level of craftsmanship that is the epitome of Professional Grade. This includes aluminum trim and chrome accents and authentic open-pore walnut wood detailing.

2024 GMC Sierra HD Denali comfort

BEST-IN-CLASS 16-WAY POWER FRONT SEATS WITH MASSAGING FEATURE

Experience serious comfort everywhere you go in Sierra HD Denali Ultimate.

2024 GMC Sierra HD Denali comfort

DENALI ULTIMATE METAL BADGING

The front seatbacks and center console lid feature Denali Ultimate logos.

2024 GMC Sierra HD Denali comfort

12-SPEAKER BOSE PREMIUM SERIES WITH CENTERPOINT SURROUND SOUND

The technologically advanced available 12-speaker Bose Premium Series with Centerpoint surround sound analyzes the stereo signal and converts to multiple channels to create a concert-like listening experience.

2024 GMC Sierra HD Denali 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:

  • 3-year / 36,000-mile Bumper-to-Bumper Limited Warranty
  • 5-year / 60,000-mile Powertrain Limited Warranty
  • 5-year / 60,000-mile Roadside Assistance & Courtesy Transportation
  • 3-year / 36,000-mile Corrosion Protection
  • 6-year / 100,000-mile Rust-Through Protection
  • First maintenance visit
2024 GMC Sierra HD Denali Safety Main Img
2024 GMC Sierra HD Denali safety

REAR CROSS TRAFFIC ALERT

Rear Cross Traffic Alert can warn you of detected left or right cross traffic behind your vehicle when you’re in Reverse.

2024 GMC Sierra HD Denali safety

LANE CHANGE ALERT WITH SIDE BLIND ZONE ALERT*

Lane Change Alert with Side Blind Zone Alert can provide side-mirror visual alerts when a detected moving vehicle is quickly approaching or is in your side blind zone. It can help you avoid lane change collisions.

2024 GMC Sierra HD Denali safety

FORWARD COLLISION ALERT

Forward Collision Alert can warn you if it detects a potential front-end collision with a vehicle you’re following so you can quickly take action. It can also provide a tailgating alert if you’re following a vehicle much too closely.

We're sorry, but we do not have a 2024 GMC Sierra HD Denali in our current inventory.

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