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1620 East Homer Adams Pkwy Alton, IL 62002

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2026 GMC Terrain AT4 OVERVIEW Overview Icon

2026 GMC Terrain AT4 in Alton

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  • AT4-exclusive selectable Terrain mode
  • Lifted ride height with red front recovery hooks*
  • Front skid plate with steel underbody shield
  • 17" Dark Machined aluminum wheels with all-terrain tires
2026 GMC Terrain AT4 Main Img

GMC Terrain AT4 Dealer in Alton

2026 GMC Terrain AT4 PERFORMANCE Performance Icon

2026 GMC Terrain AT4 performance

POWER-PACKED ENGINE

The Next Generation Terrain packs a powerfully efficient turbocharged punch with a 1.5L Turbo 4-cylinder engine and an 8-speed automatic transmission with AWD.

2026 GMC Terrain AT4 performance

UP TO SIX SELECTABLE DRIVE MODES

Take on a variety of driving conditions with All-Wheel Drive, Normal, Snow, Off-Road, Tow/Haul* and the AT4-exclusive Terrain mode, which helps with low speed crawling.

2026 GMC Terrain AT4 performance

OFF-ROAD-TUNED SUSPENSION

Terrain AT4 is equipped for challenging roads with an AT4-exclusive off-road-tuned suspension, a lifted ride height, front skid plate, underbody shield and all-terrain tires.

2026 GMC Terrain AT4 APPEARANCE Appearance Icon

2026 GMC Terrain AT4 Appearance Main Img
2026 GMC Terrain AT4 appearance

BOLD DESIGN

A unique darkened grille, animated headlamps and taillamps, black mirror caps and roof side rails set your Terrain crossover apart.

2026 GMC Terrain AT4 appearance

STYLISH WHEELS

Terrain AT4 features 17" dark machined aluminum wheels and all-terrain tires.

2026 GMC Terrain AT4 appearance

TWO-TONE ROOF

Stand out with the available two-tone roof in Sterling Metallic* or Ebony Twilight Metallic.*

2026 GMC Terrain AT4 COMFORT Comfort Icon

2026 GMC Terrain AT4 comfort

AT4-EXCLUSIVE INTERIOR

Terrain AT4 allows you to adjust your comfort and take on whatever adventure awaits you.

2026 GMC Terrain AT4 comfort

PLENTY OF CARGO SPACE

Terrain features maximum versatility with 60/40 split-folding rear seats, an underfloor storage compartment and center console pass-through storage for extra cargo space.

2026 GMC Terrain AT4 comfort

WIRELESS SMARTPHONE CHARGING

Keep your compatible smartphone powered up on the wireless charging pad.*

2026 GMC Terrain AT4 comfort

11" DIAGONAL DRIVER INFORMATION CENTER

Positioned behind the steering wheel, the digital Driver Information Center allows you to configure information so it’s just a glance away.

2026 GMC Terrain 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
2026 GMC Terrain AT4 Safety Main Img
2026 GMC Terrain AT4 safety

FOLLOWING DISTANCE INDICATOR

Following Distance Indicator displays the gap time in seconds between your vehicle and a detected vehicle you’re following. This can help you decide if you’re following much too closely.

2026 GMC Terrain AT4 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.

2026 GMC Terrain AT4 safety

REAR PARK ASSIST

Rear Park Assist* can provide distance alerts to nearby detected objects behind your vehicle to help you park and avoid collisions when you’re in Reverse at low speeds.

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