Quality Buick GMC

1620 East Homer Adams Pkwy Alton, IL 62002

Check Out Our Inventory

2015 GMC Sierra 1500 Denali OVERVIEW Overview Icon

2015 GMC Sierra 1500 Denali in Alton

Introducing Professional Grade luxury. The 2015 GMC Sierra Denali signifies comfort and quality with attention to detail, premium features and materials.

Get Current Pricing*
  • 173-hp 2.0L DOHC 4-cylinder engine with D-CVVT
  • 6-speed automatic transmission with SHIFTRONIC®
  • 17-inch alloy wheels
  • Sport-tuned suspension and steering
  • Heated front seats
2015 GMC Sierra 1500 Denali Main Img

GMC Sierra 1500 Denali Dealer in Alton

2015 GMC Sierra 1500 Denali PERFORMANCE Performance Icon

2015 GMC Sierra 1500 Denali performance

THE MOST-POWERFUL PICKUP IN ITS CLASS

The available 6.2L Ecotec3 V8 engine has 420 horsepower with 460 lb-ft of torque and is the most powerful Sierra 1500 engine ever, making it the most powerful pickup in its class. EcoTec3 technologies such as Direct Injection, Active Fuel Management and Variable Valve Timing make our engines more powerful and more efficient than ever.

2015 GMC Sierra 1500 Denali performance

DURALIFE® BRAKE ROTORS

Ferritic Nitro-Carburizing technology is a GM-exclusive process that hardens and strengthens brakes. This process protects Duralife® brakes against corrosion and can double brake life compared to conventional rotors.

2015 GMC Sierra 1500 Denali performance

REFINED RIDE WITH MAGNETIC RIDE CONTROL

Next-generation Magnetic Ride Control for improved responsiveness in quickly changing road conditions, Redesigned and retuned hydraulic engine mounts for improved isolation and damping, Electric power steering for greater fuel efficiency and handling.

2015 GMC Sierra 1500 Denali performance

DRIVER CONTROL TECHNOLOGY

StabiliTrak with Traction Control helps you stay on course, even during sudden maneuvers, by intelligently managing braking and throttle to help keep the vehicle on its intended path.

2015 GMC Sierra 1500 Denali APPEARANCE Appearance Icon

A REFINED PROFILE POWER-SLIDING REAR WINDOW A FIRM FOUNDATION 2015 GMC Sierra 1500 Denali Appearance Main Img
2015 GMC Sierra 1500 Denali appearance

A REFINED PROFILE

Denali style starts right up front with the signature Denali chrome grille.

2015 GMC Sierra 1500 Denali appearance

POWER-SLIDING REAR WINDOW

Denali offers the convenience of a standard power-sliding rear window. Get flow-through ventilation at the touch of a button.

2015 GMC Sierra 1500 Denali appearance

A FIRM FOUNDATION

Sierra Denali delivers a ride that encompasses the capability and strength that you expect. Sierra is built upon a foundation of Professional Grade Engineering.

2015 GMC Sierra 1500 Denali COMFORT Comfort Icon

2015 GMC Sierra 1500 Denali comfort

A HIGHER STANDARD OF COMFORT

The 2015 Sierra Denali interior keeps you comfortably in command. Standard features include:

- Perforated Nuance leather-appointed seating designed to provide comfort and ventilation
- Heated and cooled driver and front passenger 12-way power-adjustable bucket seats

2015 GMC Sierra 1500 Denali comfort

A QUIET & SMOOTH RIDE

The Denali cabin is engineered to provide you and your passengers with a quiet, comfortable experience. Features contributing to a quiet cabin include:

- Triple door seals block outside noise
- Shear body mounts improve ride by tuning out vibrations

2015 GMC Sierra 1500 Denali comfort

BOSE® SOUND SYSTEM

The Bose® Audio System is engineered to give you the realism and presence of a live performance. Sierra Denali features a standard Bose® 7-speaker audio system with subwoofer.

2015 GMC Sierra 1500 Denali comfort

INTELLILINK

The Color Touch radio with IntelliLink3 lets you experience your media like never before. Features include:

- Color Touch screen
- Natural Language voice command
- Customizable ‘Favorites’ so you can save albums, songs, artists, destinations and contacts

2015 GMC Sierra 1500 Denali comfort

4G LTE WIFI®

OnStar offers an available 4G LTE built-in Wi-Fi® hotspot that helps you stay connected to the internet on the go. It’s available and ready to connect to your devices, giving you an integrated and customizable in-vehicle experience.

2015 GMC Sierra 1500 Denali SAFETY & WARRANTY Safety Icon

PRO GRADE PROTECTION

  • 3-year / 36,000-mile Bumper-to-Bumper Limited Warranty
  • 5-year / 100,000-mile Powertrain Limited Warranty
  • 3-year / 36,000-mile Corrosion Protection
  • 6-year / 100,000-mile Rust-Through Protection
  • 5-year / 100,000-mile Roadside Assistance
  • 2-year / 24,000-mile Maintenance
2015 GMC Sierra 1500 Denali Safety Main Img
2015 GMC Sierra 1500 Denali safety

SEGMENT-FIRST DRIVER-ALERT TECHNOLOGIES

Sierra Denali’s advanced technologies pair intelligent engineering with driver-centric safety. These available technologies include Forward Collision Alert and Lane Departure Warning. Sierra is the first pickup to offer these technologies, which let you know when you may be approaching another vehicle too quickly or if you’ve left your driving lane. Both provide visual alerts and allow you to choose from additional audible signals or seat vibrations as well.

2015 GMC Sierra 1500 Denali safety

REAR VISION CAMERA

The standard Rear Vision Camera displays a view of what is behind you on the radio screen, helping to provide clarity and peace of mind while you maneuver and park your Sierra Denali.

Check Out Our Inventory

Disclaimers