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1620 East Homer Adams Pkwy Alton, IL 62002

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2019 GMC Sierra AT4 OVERVIEW Overview Icon

2019 GMC Sierra AT4 in Alton

Sierra AT4’s distinctive style and athletic stance create a commanding presence.

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  • Off-Road Suspension With 2" Factory Lift
  • ProGrade Trailering System
  • GMC MultiPro Tailgate
  • 12-Volt Auxiliary Front Power Outlet
  • 6-Speaker Audio System
2019 GMC Sierra AT4 Main Img

2019 GMC Sierra AT4 CONFIGURATIONS

* Model and trim configurations may vary
  • Sierra AT4 Crew Cab Short Box
    Sierra AT4 Crew Cab Short Box
  • Sierra AT4 Crew Cab Standard Box
    Sierra AT4 Crew Cab Standard Box
  • Sierra AT4 Double Cab Standard Box
    Sierra AT4 Double Cab Standard Box

GMC Sierra AT4 Dealer in Alton

2019 GMC Sierra AT4 PERFORMANCE Performance Icon

Off-Road Suspension and Shocks

Off-Road Suspension and Shocks

The factory-installed 2-inch suspension lift gives you the ground clearance you want when heading off-road, while Rancho® monotube shock absorbers are off-road tuned to help smooth out rough terrain.

Adapt to the Road Conditions

Adapt to the Road Conditions

Sierra AT4 comes standard with four-wheel drive and a 2-speed AutoTrac transfer case that includes low-range four-wheel-drive gearing that handles a variety of off-road conditions.

Strong, Capable Cargo Box

Strong, Capable Cargo Box

This cargo box accommodates your active lifestyle with the functionality and strength to load and haul heavy toys and cargo.

2019 GMC Sierra AT4 APPEARANCE Appearance Icon

Integrated Dual Exhaust 2019 GMC Sierra AT4 Appearance Main Img
Integrated Dual Exhaust

Integrated Dual Exhaust

Bright, polished dual exhaust outlets stand out below the body-color rear bumper creating a clean design that adds to Sierra AT4’s premium appearance.

2019 GMC Sierra AT4 COMFORT Comfort Icon

Class-Leading Crew Cab Front Head and Leg Room

Class-Leading Crew Cab Front Head and Leg Room

Outside, the stance is bold, and inside the larger proportions help give you the added confidence of sitting higher. You can also stretch out with class-leading max front head and leg room in the Sierra AT4 Crew Cab.

Rear-Seat Passenger Comfort

Rear-Seat Passenger Comfort

Larger rear-door openings and more rear-seat leg room than previous Sierra models make your passengers feel comfortable with rear vents and heated rear outboard seats keep them that way for the long haul.

USB Connectivity

USB Connectivity

On the road or off, you want to stay plugged in. With six USB ports, you and your passengers can charge up and keep going.

Available Wireless Charging Pad

Available Wireless Charging Pad

Keep the charging cords at home. When you’re on the road in GMC Sierra AT4, the wireless charging pad located in easy reach near the cupholders, keeps your compatible smartphone charged and ready.

2019 GMC Sierra AT4 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
2019 GMC Sierra AT4 Safety Main Img
Available Lane Change Alert with Side Blind Zone Alert

Available Lane Change Alert with Side Blind Zone Alert

Provides side-mirror alerts to the driver when a detected vehicle is moving in, or rapidly approaching their side blind zone during a lane-change maneuver.

HD Rear Vision Camera

HD Rear Vision Camera

When in Reverse, the driver can view the scene directly behind the vehicle on the infotainment screen, to help the driver park and avoid nearby objects during low-speed maneuvering.

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