2026 GMC Sierra EV AT4: POV Driving Impressions & Off-Road Capability

GMC Sierra EV AT4: Powertrain and Range

• ⚡ The 2026 GMC Sierra EV AT4 boasts a dual-motor all-wheel-drive system, offering up to 725 horsepower and 785 lb-ft of torque on the Max Range version.
• 🔋 With the Max Range battery pack, it achieves an impressive estimated 478 miles of driving range.
• 🔌 It supports 800V DC fast charging, capable of adding about 100 miles in 10 minutes with 350 kW charging.

Off-Road Prowess

• ⛰️ The AT4 trim features a 2-inch factory lift, 35-inch all-terrain tires, and four-wheel steering with CrabWalk functionality for enhanced maneuverability.
• 🛡️ Underbody skid plates and a dedicated Terrain Mode for traction control are included for off-road durability.
• 🛠️ The suspension utilizes coil springs, providing 10.9 inches of ground clearance and a robust feel for off-road conditions.

Interior and Technology

• 📱 The interior is well-appointed with an AT4 stitched into the headrests and a large 16.8-inch portrait-style infotainment display.
• 🔌 The MultiPro MidGate allows for extending the bed length into the cab, accommodating items up to 11 feet long.
• 💡 The 10.2 kW Energy Transfer Pro system provides off-board power through 240V and 120V outlets.
• 🛣️ Super Cruise hands-free driving is included, integrating with Google Maps for enhanced navigation and auto lane changes.

Driving Dynamics and Handling

• ⚖️ The truck weighs approximately 8,900 lbs, and while comfortable and quiet, it exhibits a heavy feel and limited handling prowess due to its weight and tire compound.
• 🔄 The rear steering significantly enhances maneuverability, making the truck feel more agile than its size suggests.
• 🚗 On-road, the ride quality is good, but the handling is compromised, with noticeable body roll and a tendency for stability control to engage when pushed hard.

EV Efficiency and Practicality

• 📊 Early efficiency figures show around 1.5 miles per kilowatt-hour, but mixed driving conditions yielded about 2.5 miles per kilowatt-hour.
• 💰 Pricing starts around $79,000 for the AT4 trim, qualifying for a $7,500 EV tax credit.
• 🔋 The large battery pack means charging can take a significant amount of time, but for many users, charging once every week or two might suffice.

User Interface and Super Cruise

• ⚠️ A notable drawback is the lack of Apple CarPlay and Android Auto support, relying solely on the Android-based system with Google Maps.
• ⚠️ The passenger side mirror is flat due to HD truck regulations, creating a significant blind spot.
• 🚦 Super Cruise's automatic speed adjustment based on detected speed limits can be finicky and sometimes misread signs, potentially leading to unintended speed changes.