2026 GMC Sierra EV AT4 Max Range: A Much Better Electric Truck Than Before
Table of Contents
The 2026 GMC Sierra EV AT4 Max Range proves that small changes can make a big difference. When the Sierra EV first arrived, it faced criticism for its driving behavior and overall road manners. Now, GMC has addressed several of those concerns, and the result is a truck that feels far more stable, confident, and enjoyable to drive.
While the Sierra EV AT4 Max Range is not perfect, it represents a noticeable improvement over the earlier Sierra EV Denali. Better suspension tuning, revised rear steering calibration, and more suitable tires have transformed the driving experience.
2026 GMC Sierra EV AT4 Max Range Performance
The Sierra EV AT4 Max Range uses a dual motor electric powertrain that produces:
| Specification | Figure |
|---|---|
| Horsepower | 725 hp |
| Torque | 775 lb-ft |
| Battery Capacity | 205 kWh |
| Drive System | Dual-Motor AWD |
Although it makes slightly less power than the Sierra EV Denali, the difference is hardly noticeable in daily driving.
According to testing by Car and Driver, the truck can accelerate from 0 to 60 mph in approximately 4.3 seconds. That is extremely quick for a vehicle weighing around 8,800 pounds.
The reduced power output compared to the Denali appears to help overall stability, especially during hard acceleration.
Improved Driving Dynamics
One of the biggest complaints about the earlier Sierra EV was its tendency to feel unsettled at higher speeds.
The AT4 package helps solve many of those issues.
Key changes include:
- 35 inch Goodyear Wrangler all terrain tires
- Wider tire footprint
- Fixed coil spring suspension
- Updated rear wheel steering calibration
- Smaller 18 inch wheels
Together, these upgrades make the truck feel more planted and predictable on the road.
The steering still becomes lighter than some drivers may prefer during aggressive acceleration, but overall control is significantly improved compared to the earlier version.
Driving Range and Charging
Range remains one of the strongest points of the Sierra EV AT4 Max Range.
GMC estimates up to 478 miles of driving range on a full charge.
The truck’s massive 205 kWh battery pack allows for long distance travel with fewer charging stops.
Charging Highlights
| Charging Feature | Figure |
|---|---|
| Maximum Range | 478 miles |
| Battery Capacity | 205 kWh |
| Architecture | 800 Volt |
| Peak DC Fast Charging | 350 kW |
| Range Added In 10 Minutes | Up to 100 miles |
The 800 volt electrical architecture allows rapid charging under ideal conditions. GMC says drivers can add roughly 100 miles of range in around 10 minutes using a compatible DC fast charger.
Interior and Technology
The Sierra EV AT4 Max Range comes loaded with technology and comfort features.
Some highlights include:
- Standard Super Cruise hands free driving assistance
- 16.8 inch vertical infotainment screen
- 11 inch digital driver display
- 14 inch head up display
- Panoramic sunroof
- Multiple storage compartments
- Large center console
- Numerous cupholders
The infotainment system remains easy to use thanks to physical controls for important functions such as climate settings and volume adjustment.
Cargo Capacity
Practicality is another strength.
Drivers get:
- 5 foot 11 inch cargo bed
- 11 cubic foot front trunk
- MultiPro Tailgate
- MultiPro MidGate system
The MultiPro Tailgate continues to be one of GMC’s most useful truck features, making bed access easier during loading and unloading.
Rear Wheel Steering and CrabWalk
Like other GM electric trucks, the Sierra EV AT4 includes several unique technologies.
Rear Wheel Steering
Rear wheel steering helps reduce the truck’s turning circle to just 39.1 feet, making this large pickup easier to maneuver in tight spaces.
CrabWalk
The truck also features CrabWalk mode, allowing all four wheels to turn in the same direction.
While it may not be something owners use every day, it remains one of the most entertaining features available on a modern electric truck.
Off Road Features
Despite wearing the AT4 badge, this truck focuses more on light adventure travel than serious off road driving.
That said, GMC has added several upgrades that improve capability.
AT4 Upgrades
- 18 inch wheels
- 35 inch Goodyear Wrangler all terrain tires
- Additional suspension enhancements
- Red tow hooks
- Black exterior trim
- Terrain drive mode
The AT4 gains two extra inches of ground clearance over the standard Sierra EV Elevation, bringing total ground clearance to 10 inches.
Terrain Mode
Terrain Mode is designed for low speed off road situations.
It offers:
- Improved one pedal control below 25 mph
- Enhanced throttle response tuning
- Earlier rear steering engagement
- Better maneuverability on rough terrain
These changes help make the truck easier to control when driving on trails or uneven surfaces.
Pricing
The 2026 GMC Sierra EV lineup covers a wide range of budgets.
| Model | Starting Price |
|---|---|
| Sierra EV Elevation | $65,490 |
| Sierra EV AT4 Extended Range | $82,390 |
| Sierra EV AT4 Max Range | $92,195 |
The reviewed vehicle included a dealer installed hard folding bed cover priced at $1,950, bringing the total tested price to $94,145.
Final Thoughts
The 2026 GMC Sierra EV AT4 Max Range demonstrates how meaningful improvements can come from relatively small changes.
Better tires, revised suspension tuning, and updated rear steering calibration have made this electric pickup feel much more composed and confidence inspiring than earlier versions.
It still carries the size and weight challenges common to large electric trucks, and hardcore off road enthusiasts may want a more aggressive AT4 setup. However, for buyers looking for a comfortable, capable electric pickup with exceptional range and modern technology, the Sierra EV AT4 Max Range is a much stronger package than before.
Sources and References
Official GMC Sources
GMC Sierra EV Official Page
GMC Sierra EV Official Website
Official GMC page with specifications, features, charging details, technology, range information, and trim details for the Sierra EV.
GMC Sierra EV AT4 Official Page
GMC Sierra EV AT4 Official Page
Official AT4 trim information including off road upgrades, Terrain Mode, ground clearance, and AT4 exclusive features.
GMC Sierra EV Build & Price (US)
Build & Price Sierra EV USA
Official US pricing, trims, available options, and configuration details.
Trusted Automotive Sources
Car and Driver Sierra EV Review
Car and Driver Sierra EV Review
Detailed review covering performance, pricing, range, towing capacity, and driving impressions.
Car and Driver AT4 First Drive Review
Car and Driver Sierra EV AT4 Review
Focused review of the AT4 trim with towing, off road capability, ride quality, and handling analysis.
MotorTrend Sierra EV Review
MotorTrend Sierra EV Review
Independent review covering technology, luxury features, interior quality, and overall ownership experience.
Industry & Product Announcement Sources
GM Canada Newsroom AT4 Announcement
GM News Sierra EV AT4 Announcement
Official GM press release explaining the introduction of the AT4 trim, Terrain Mode, suspension upgrades, and off road features.
The Verge Sierra EV AT4 Coverage
The Verge Sierra EV AT4 Coverage
Industry coverage discussing pricing, trim structure, battery options, and AT4 positioning within the Sierra EV lineup.
FAQ
What is the power output of the 2026 GMC Sierra EV AT4 Max Range?
It uses a dual motor AWD setup with 725 hp and 775 lb ft of torque. That is plenty for a truck this size, and it still feels quick in daily driving.
How fast is the 2026 GMC Sierra EV AT4 Max Range?
Car and Driver tested it at about 4.3 seconds from 0 to 60 mph. For a truck that weighs around 8,800 pounds, that is seriously fast.
How far can the 2026 GMC Sierra EV AT4 Max Range go on a full charge?
GMC estimates up to 478 miles of range on a full charge. That is one of the biggest strengths of this version.
How quickly can the 2026 GMC Sierra EV AT4 Max Range charge?
It has an 800 volt architecture and supports up to 350 kW DC fast charging. GMC says it can add about 100 miles of range in around 10 minutes under ideal conditions.
What makes the AT4 version different from the regular Sierra EV?
The AT4 gets 18 inch wheels, 35 inch Goodyear Wrangler all terrain tires, fixed coil spring suspension, updated rear wheel steering calibration, red tow hooks, black exterior trim, and Terrain Mode. It also gets 10 inches of ground clearance.
Does the Sierra EV AT4 Max Range have useful interior and cargo features?
Yes. It comes with Super Cruise, a 16.8 inch vertical screen, an 11 inch driver display, a 14 inch head up display, a panoramic sunroof, a 5 foot 11 inch bed, an 11 cubic foot frunk, MultiPro Tailgate, and MultiPro MidGate.
How much does the 2026 GMC Sierra EV AT4 Max Range cost?
The AT4 Max Range starts at $92,195. The tested vehicle in the article reached $94,145 with a dealer installed hard folding bed cover. The wider Sierra EV lineup starts at $65,490 for the Elevation and $82,390 for the AT4 Extended Range.
