Trims, Powertrains, and Performance
The 2026 Sierra EV is offered in three trims – Elevation, AT4, and Denali – and powertrain options called Standard Range, Extended Range, and Max Range. They all run on a dual-motor four-wheel-drive (4WD) platform. The Standard Range powertrain produces 605 horsepower and 605 lb.-ft. of torque on both the Elevation and Denali trims. The Extended Range powertrain is available for the entire lineup, making 645 horsepower and up to 765 lb.-ft. of torque on the Elevation, increasing to 785 lb.-ft. of torque on the two higher trims. The Max Range generates 725 horsepower and up to 775 lb.-ft. of torque on the AT4, and 760 horsepower and up to 785 lb.-ft. of torque on the Denali.
The Max Range leads the powertrains in efficiency, with a GM-estimated range of 478 miles. The Extended Range follows, achieving an EPA-estimated 410-mile range on the Elevation and Denali, and a GM-estimated 310-mile range on the AT4. Last is the Standard Range, which provides both the Elevation and Denali with an EPA-estimated 283 miles of range on a full charge.
The Extended Range has the highest towing capacity, at 12,500 pounds for the Elevation and Denali, dropping slightly to 12,300 pounds on the AT4. It boasts a 1,950-pound maximum payload on the Denali and AT4, decreasing to 1,700 pounds on the Elevation. The Max Range is next, achieving a 10,200-pound towing limit and 1,500-pound maximum payload on both the AT4 and Denali, while the Standard Range brings up the rear with an 8,500-pound towing capacity and a 2,250-pound maximum payload for both the Elevation and Denali. The AT4 trim has extra ground clearance thanks to a 2-inch lift kit. Max Range Sierra EVs come with GM’s Crabwalk 4-wheel steering, and the Denali Max Range alone has an adaptive air-ride suspension.
Every Sierra EV is capable of DC fast charging, with 220 kW on the Standard Range, 300 kW on the Extended Range, and 350 kW on the Max Range. The whole lineup can distribute vehicle-to-home power, but only the AT4 models and the Denali Max upgrade to 10.2 kW, split-phase AC offboarding power and up to 19.2 kW vehicle-to-home bidirectional charging capability (with the proper equipment).