2026 GMC Terrain: What's New, Specs & Features
Last updated August 4, 2026
The biggest change for the 2026 GMC Terrain is the arrival of AT4 and Denali trims. This is a lineup expansion rather than another redesign: AT4 adds off-road hardware, while Denali adds more comfort and luxury features.
About the 2026 GMC Terrain
3rd generation (2025-present), second model year; lineup-expansion year that adds AT4 and Denali after Elevation launched first.
GMC positions the Terrain as its smallest and most approachable SUV, but not as a stripped-down basic crossover. The pitch is a compact SUV with bold truck-inspired styling, a big portrait touchscreen, strong standard safety equipment, and trim personalities that stretch from everyday commuter to light-trail AT4 to premium Denali. Compared with many rivals, Terrain leans more on design, cabin feel, and GMC branding than on quick acceleration or maximum cargo room.
The 2026 Terrain range now covers three distinct roles. Elevation remains the everyday model with a 15-inch touchscreen, heated front seats and broad standard safety coverage; AT4 adds trail-focused hardware, while Denali brings leather-appointed seating, upgraded cameras and more passenger comfort.
What changed, by category
2026 GMC Terrain specs and features by trim
| Feature | |||
|---|---|---|---|
| Engine | 4-Cyl, Turbo, 1.5 Liter | 4-Cyl, Turbo, 1.5 Liter | 4-Cyl, Turbo, 1.5 Liter |
| Transmission | Automatic, 8-Spd w/Overdrive & Driver Shift Control | Automatic, 8-Spd w/Overdrive & Driver Shift Control | Automatic, CVT |
| Drivetrain | AWD | AWD | FWD |
| Fuel Type | Gas | Gas | Gas |
| MPG City | 24 mpg | 24 mpg | 26 mpg |
| MPG Highway | 26 mpg | 28 mpg | 28 mpg |
| Horsepower | 175 hp | 175 hp | 175 hp |
| Torque | 203 lb-ft | 203 lb-ft | 184 lb-ft |
| Max Towing | 1500 lb | 1500 lb | 800 lb |
| Trunk/Cargo | 63.5 cu-ft | 63.5 cu-ft | 63.5 cu-ft |
| Rear Legroom | 40 in | 40 in | 40 in |
| Seats | 5 | 5 | 5 |
| Doors | 4 | 4 | 4 |
| Adaptive Cruise Control | |||
| Alarm System | |||
| Automatic High Beams | |||
| Blindspot Sensors | |||
| Hill Descent Control | |||
| Lane Departure Warning | |||
| Park Assist | |||
| Rain Sensing Windshield Wipers | |||
| Rear View Camera | |||
| 360 Camera | |||
| Alloy Wheels | |||
| Fog Lights | |||
| LED Headlights | |||
| Memory Exterior Mirrors | |||
| Panorama Moon Roof | |||
| Power Close Liftgate/Trunk | |||
| Roof Rails | |||
| Trailer Hitch Receiver | |||
| Navigation System | |||
| Smartphone Interface | |||
| Dual Power Front Seats | |||
| Dual-Zone Climate Control | |||
| Heated Front Seats | |||
| Heated Rear Seats | |||
| Heated Steering Wheel | |||
| Integrated Garage Door Opener | |||
| Leather Seats | |||
| Memory Driver's Seat | |||
| Power Driver Seat | |||
| Push-Button Engine Start | |||
| Remote Start | |||
| Ventilated Front Seats | |||
Frequently asked questions
What is new on the 2026 GMC Terrain?
The 2026 GMC Terrain adds AT4 and Denali trims. AT4 is the more trail-focused version, while Denali is the more luxurious and comfort-oriented version.
Is the 2026 GMC Terrain a full redesign?
No, the 2026 GMC Terrain is not a full redesign. The third-generation Terrain debuted for 2025, and the 2026 model year completes that lineup by adding AT4 and Denali.
What does the 2026 GMC Terrain AT4 add?
The 2026 Terrain AT4 adds standard AWD, extra ride height, off-road-tuned suspension, a dedicated Terrain driving mode, steel underbody protection, red recovery hooks and a factory trailer hitch with wiring.
What does the 2026 GMC Terrain Denali add?
The 2026 Terrain Denali adds a more upscale cabin, leather-appointed seating, ventilated front seats, heated rear outboard seats, a surround-view camera system, a rear-camera mirror and comfort-focused suspension.
Did the 2026 GMC Terrain get a new engine?
No, the 2026 GMC Terrain keeps the turbocharged 1.5-liter four-cylinder engine. The new AT4 and Denali pair it with an 8-speed automatic transmission and standard AWD.