2025 GMC Sierra EV Specs
1 powertrain configuration on federal record for the 2025 GMC Sierra EV: Electricity, rated up to 64 MPG combined by the EPA.
Source: EPA federal records (fueleconomy.gov) · Updated 2026-10-26 · By CarWhere Research
| Engine | Transmission | Drivetrain | City | Highway | Combined |
|---|---|---|---|---|---|
| Electricity | Automatic (A1) | 4-Wheel Drive | 70 | 59 | 64 |
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Frequently asked questions
What engines does the 2025 GMC Sierra EV have?
One powertrain on federal record: Electricity, offered with Automatic (A1) and 4-Wheel Drive. The full per-configuration table is above.
What gas mileage does the 2025 GMC Sierra EV get?
EPA combined ratings run 64–64 MPG depending on configuration — the table above shows city/highway/combined for each engine, transmission, and drivetrain.
How do I get the specs for my exact VIN?
These are the federal-record configurations for the 2025 GMC Sierra EV overall. For one specific vehicle — its exact engine, trim, factory options, and original window sticker — decode the 17-character VIN free at carwhere.com/tools/vin-decoder.
Where does this data come from?
The U.S. EPA's public vehicle dataset (fueleconomy.gov) — the federal record of every US-market configuration since 1984 — refreshed 2026-10-26. Public-domain data; republish with attribution to CarWhere (carwhere.com).