New 2027 GMC Sierra EV AT4 Review, Specs & Towing Capacity – The 2027 GMC Sierra EV AT4 brings serious off-road prowess to the all-electric full-size pickup segment, perfectly suited for American adventurers, overlanders, and truck enthusiasts who demand capability without sacrificing modern electric performance. This rugged trim combines GMC’s signature bold styling, advanced EV technology, and trail-ready hardware, making it an ideal choice for tackling tough terrain across the US while handling daily duties, towing, and long-range travel with zero emissions.
What’s New for 2027 GMC Sierra EV AT4
As a relatively new addition to the Sierra EV lineup, the 2027 model builds on its strong foundation with incremental refinements. Expect possible new color options, software updates for improved energy management and infotainment responsiveness, and potential calibration tweaks to the suspension or drive modes for even better on- and off-road performance.
These updates focus on enhancing real-world usability and owner satisfaction. Potential upgrades from the previous year could include expanded Super Cruise compatibility or minor efficiency improvements to the battery and powertrain.
What Makes This Trim Special?
The AT4 trim stands out by delivering authentic off-road hardware in a premium electric package. It features increased ground clearance, all-terrain tires, red recovery hooks, and specialized drive modes that help it conquer trails while retaining the quiet, torquey acceleration only an EV can provide.
For US buyers who venture off the pavement—whether for hunting, camping, or overlanding—the Sierra EV AT4 offers impressive range, strong towing, and innovative features like CrabWalk, all wrapped in distinctive rugged styling.
2027 GMC Sierra EV AT4 Redesign
There is no major redesign for 2027. The Sierra EV AT4 retains its bold, muscular EV truck design with a massive grille, aggressive stance, C-shaped LED lighting, and AT4-specific badging and accents. Minor evolutionary changes, such as fresh wheel designs or new exterior colors, may keep it looking fresh while preserving its commanding road and trail presence across the United States.
What Difference This Trim and Others
The AT4 occupies a capable middle ground in the Sierra EV lineup:
- Vs. Elevation: Adds dedicated off-road upgrades including higher ground clearance, all-terrain tires, recovery hooks, and advanced terrain modes.
- Vs. Denali: Trades ultimate luxury appointments and chrome-heavy styling for rugged capability, functional off-road equipment, and a more adventurous character.
The AT4 appeals to buyers who want trail performance and premium features without stepping into full luxury territory.
2027 GMC Sierra EV AT4 Interior, Features & Tech
The interior blends rugged durability with modern comfort, featuring unique AT4-exclusive touches like Forest Storm-themed accents and durable, high-quality materials. Available MultiPro Midgate expands versatility for hauling long items while maintaining passenger space.
Key highlights include:
- Large touchscreen infotainment with Google built-in, wireless Apple CarPlay, and Android Auto.
- Digital driver display and available premium audio.
- Heated/ventilated seats, panoramic views, and advanced connectivity features.
- Spacious crew cab with excellent storage and a versatile truck bed.
The tech suite emphasizes user-friendly operation for both daily driving and off-grid adventures.
Safety Features & Driver Assistance
The 2027 Sierra EV AT4 comes equipped with a full suite of advanced safety technologies. Standard features include Automatic Emergency Braking, Lane Keep Assist, Blind-Zone Alert, and multiple camera views.
Super Cruise hands-free driving assistance (with trailering support) is available or standard on higher packages, providing confidence during long highway hauls across the country. Additional systems like 360-degree camera views and advanced parking assistance make maneuvering this large truck easier in tight US urban or trailhead settings.
2027 GMC Sierra EV AT4 Performance & Specs
Dual electric motors deliver instant torque with e4WD standard. Power outputs range from approximately 625 hp in Extended Range models up to 725 hp in Max Range configurations, paired with massive torque around 775 lb-ft.
Expect GM-estimated ranges up to 390+ miles (Extended) or even higher in Max Range variants. Towing capacity reaches up to 12,300 pounds when properly equipped, while 800-volt architecture supports ultra-fast DC charging. Key off-road features include 2 inches of extra ground clearance, 35-inch all-terrain tires, 4-wheel steering with CrabWalk, and Terrain Mode for confident trail performance.
2027 GMC Sierra EV AT4 Pros & Cons
Pros:
- Impressive electric range for an off-road capable truck.
- Powerful acceleration and strong towing capacity.
- Innovative features like CrabWalk and MultiPro Midgate.
- Rugged off-road hardware with premium comfort.
- Quiet, refined EV driving experience on and off pavement.
Cons:
- Higher price point typical of premium EVs.
- Large size can be challenging in tight urban areas.
- Charging infrastructure still developing in remote US regions.
- Heavy curb weight affects certain handling dynamics.
Should You Consider It?
Yes, if you want a capable off-road electric full-size truck for American adventures. The 2027 GMC Sierra EV AT4 excels for buyers needing towing power, trail capability, and long-range usability without traditional fuel stops. Test drive one to experience the instant torque and innovative features firsthand—especially if you frequent national parks, mountains, or rural areas.
2027 GMC Sierra EV AT4 Price & Release Date
As a carryover with refinements, expect the 2027 Sierra EV AT4 to start around $79,300–$82,000 (MSRP, excluding destination) for Extended Range models, with Max Range versions climbing into the low-to-mid $90,000s when equipped.
Availability is anticipated through GMC dealerships nationwide, with ongoing production following the initial 2026 launch.
The 2027 GMC Sierra EV AT4 represents the future of rugged American trucking—merging serious off-road capability, impressive electric performance, and premium features into one versatile package. For US drivers seeking adventure-ready capability with modern efficiency and technology, it sets a high standard in the growing electric pickup segment. Visit your local GMC EV dealer to build and price the Sierra EV AT4 that matches your lifestyle.
