2021 Chevrolet TrailBlazer Specs

3 powertrain configurations on federal record for the 2021 Chevrolet TrailBlazer: 1.3L 3-cyl Regular Gasoline; 1.2L 3-cyl Regular Gasoline, in All-Wheel Drive and Front-Wheel Drive, rated up to 31 MPG combined by the EPA.

Source: EPA federal records (fueleconomy.gov) · Updated 2026-10-26 · By CarWhere Research

2021 Chevrolet TrailBlazer engines, transmissions, drivetrains and EPA gas mileage
EngineTransmissionDrivetrainCityHighwayCombined
1.3L 3-cyl Regular GasolineAutomatic 9-spdAll-Wheel Drive263028
1.3L 3-cyl Regular GasolineAutomatic (variable gear ratios)Front-Wheel Drive293331
1.2L 3-cyl Regular GasolineAutomatic (variable gear ratios)Front-Wheel Drive283129

TrailBlazer by year

Buying a used TrailBlazer? Specs are the easy half.

Check which TrailBlazer years to avoid (federal complaint and recall records), see the live TrailBlazer value by year, then check the specific car: the Full VIN Report shows that VIN's factory build, recall record, and market history before you pay for it.

Frequently asked questions

What engines does the 2021 Chevrolet TrailBlazer have?

2 engines on federal record: 1.3L 3-cyl Regular Gasoline; 1.2L 3-cyl Regular Gasoline, offered with Automatic 9-spd, Automatic (variable gear ratios) and All-Wheel Drive or Front-Wheel Drive. The full per-configuration table is above.

What gas mileage does the 2021 Chevrolet TrailBlazer get?

EPA combined ratings run 28–31 MPG depending on configuration — the table above shows city/highway/combined for each engine, transmission, and drivetrain.

Is 2021 a good year for the Chevrolet TrailBlazer?

Specs don't answer that — the federal complaint and recall record does. See the Chevrolet TrailBlazer year-by-year reliability verdicts at carwhere.com/research/years-to-avoid/chevrolet/trailblazer, built from NHTSA data.

How do I get the specs for my exact VIN?

These are the federal-record configurations for the 2021 Chevrolet TrailBlazer 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).