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The 2026 Hummer EV supertruck offers a GM-estimated range of up to 363 miles on a full charge. Utilizing its 800-volt DC fast-charging architecture ensures you spend less time plugged in and more time exploring Ohio. Protect your Ultium battery’s longevity and Schedule Service at Chesrown Chevrolet GMC today.
The massive 24-module Ultium battery pack powers this electric behemoth. When equipped on the 3X trim, it delivers the maximum GM-estimated 363 miles of range, making it ideal for long hauls across the Midwest. The truck features an 800-volt electrical architecture, enabling rapid DC fast charging. At a compatible public charging station, you can add up to 100 miles of range in just 10 to 12 minutes. For everyday convenience, a Level 2 home charger will easily replenish the battery overnight while it sits in your Shelby County driveway. For a complete understanding of how this electric powertrain functions alongside the drive motors, read our comprehensive Hummer EV supertruck guide.
Beyond just powering the vehicle, this advanced architecture features bidirectional charging capabilities. Using Vehicle-to-Home (V2H) technology, your truck can act as a backup generator to supply electricity to your home during a severe winter power outage. Because there is no gasoline engine, routine maintenance shifts primarily to the tires and chassis. The sheer curb weight and immense torque of this vehicle demand regular tire rotations to prevent rapid, uneven tread wear. EV technicians must also periodically inspect the thermal management system’s coolant levels to ensure the battery cells maintain optimal temperatures during freezing weather. Monitor your vehicle’s safety status by checking the NHTSA official recall database.
As your battery platform ages and reaches major milestones, evaluating its long-term health is crucial. If your lifestyle requires different towing capacities or updated tech, this is the perfect time to See Trade-In Value and explore newer electric iterations.
| Mileage | Required Service Actions |
|---|---|
| 7,500 Miles | Rotate tires. Inspect battery coolant levels. Inspect regenerative braking components. |
| 22,500 Miles | Replace passenger compartment cabin air filter. |
| 45,000 Miles | Replace brake fluid. Inspect suspension and chassis components. |
| 90,000 Miles | Inspect high-voltage cables and connections. |
Maintenance schedules vary based on off-road usage and extreme weather conditions. Always consult your factory owner’s manual or our EV-certified technicians for personalized guidance.
