2026 GMC Terrain AT4: First Drive Impressions of the Off-Road Compact SUV

2026 GMC Terrain AT4 Overview

• 🚗 The 2026 GMC Terrain AT4 is an off-road focused version of GMC's entry-level compact SUV, featuring standard all-wheel drive and an 8-speed automatic transmission.
• 💡 New for 2026 are the AT4 and Denali trims, with the base Elevation trim also available in front-wheel drive with a CVT.
• 💰 The AT4 trim starts around $40,000, with the tested model priced just under $43,000.

Exterior and Off-Road Capability

• 🎨 The Volcanic Red Tintcoat exterior is striking, complemented by General Grabber all-terrain tires on 17-inch wheels.
• ⛰️ Off-road features include a Terrain drive mode with one-pedal driving, a lifted suspension with off-road tuning, front recovery hooks, and underbody skid plating.
• 📏 The AT4 boasts 7.9 inches of ground clearance, an increase of half an inch over standard models.

Interior and Technology

• 🖥️ The interior features two large displays, including a 15-inch infotainment system with Google Built-In and a 11-inch digital driver information center.
• 📱 Wireless Apple CarPlay and Android Auto are supported, alongside a responsive touchscreen and a physical volume knob.
• 💺 The AT4 trim offers an aggressive seat design with stitching, cloth inlays, and an AT4 logo, plus heated and ventilated front seats and a heated steering wheel.
• 📦 Interior packaging is excellent, with ample passenger space and 29.6 cu ft of cargo space behind the rear seats, expandable to 63.5 cu ft.

Powertrain and Driving Dynamics

• 🐎 The 1.5L turbocharged 4-cylinder engine produces 175 horsepower and 203 lb-ft of torque, paired with an 8-speed automatic transmission.
• ⛽ Fuel economy is rated at 24 mpg city / 26 mpg highway / 25 mpg combined.
• 🛣️ Driving impressions suggest light steering and a comfortable ride on the all-terrain tires, with minimal NVH.
• ⚠️ The powertrain can feel strained when pushed hard, with potential delays in downshifts and a droning sound at higher RPMs.
• 🔊 The sound system is noted as a significant disappointment, potentially one of the worst tested.

Safety and Driver Assistance

• 🚨 Over 16 standard safety and driver assistance features are included, such as Forward Collision Alert, Automatic Emergency Braking, and Lane Keep Assist.
• 👁️ Available features include Adaptive Cruise Control and a Rear Camera Mirror with washer.
• ⚠️ Lane Departure Warning is present, but the vehicle may wander slightly, requiring driver attention.

Final Thoughts on the AT4

• ✨ The 2026 GMC Terrain AT4 is praised for its attractive off-road styling, excellent interior packaging, and tech features.
• 🏕️ While not a hardcore off-roader, its enhanced ground clearance, suspension tuning, and Terrain mode offer increased capability for light trails and camping trips.
• 🚦 The main drawbacks are the underwhelming powertrain performance when pushed and the disappointing sound system, but for everyday driving, it offers a comfortable and easy experience.