AutoSpecData

GMC Sierra Vehicle Class & Size

The EPA classifies the 2026 GMC Sierra as a Standard Pickup Trucks 4WD / Standard Pickup Trucks 2WD / Special Purpose Vehicle 4WD / Special Purpose Vehicle 2WD, a rating based on body style and interior volume.

Latest model year (2026):

The GMC Sierra is classified by the EPA as a Standard Pickup Trucks 4WD / Standard Pickup Trucks 2WD / Special Purpose Vehicle 4WD / Special Purpose Vehicle 2WD.

Verifiedfueleconomy.gov · Verified August 11, 2026
OverviewMPGEngine SpecsFuel CostTransmissionDrivetrainVehicle ClassMaintenanceTowingBed SizeGas TankDimensionsCurb WeightEV Range

GMC Sierra Vehicle Class — All Years

YearTrimVehicle ClassDriveFuel TypeMPG Comb.
2026Config 1 of 24Auto (A1)Standard Pickup Trucks 4WD4-Wheel DriveElectricity64
2026Config 2 of 24Auto (A1)Standard Pickup Trucks 4WD4-Wheel DriveElectricity67
2026Config 3 of 24Auto (A1)Standard Pickup Trucks 4WD4-Wheel DriveElectricity68
2026Config 4 of 24Auto 10-spd, 6 cyl, 3.0 LStandard Pickup Trucks 4WD4-Wheel DriveDiesel23
2026Config 5 of 24Auto 10-spd, 6 cyl, 3.0 LStandard Pickup Trucks 4WD4-Wheel DriveDiesel19
2026Config 6 of 24Auto 10-spd, 6 cyl, 3.0 LStandard Pickup Trucks 4WD4-Wheel DriveDiesel24
2026Config 7 of 24Auto 10-spd, 6 cyl, 3.0 LStandard Pickup Trucks 2WDRear-Wheel DriveDiesel25
2026Config 8 of 24Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline17
2026Config 9 of 24Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline17
2026Config 10 of 24Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline18
2026Config 11 of 24Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline17
2026Config 12 of 24Auto 10-spd, 8 cyl, 5.3 LSpecial Purpose Vehicle 4WD4-Wheel DriveRegular Gasoline15
2026Config 13 of 24Auto 10-spd, 8 cyl, 5.3 LSpecial Purpose Vehicle 2WDRear-Wheel DriveRegular Gasoline16
2026Config 14 of 24Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline16
2026Config 15 of 24Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline16
2026Config 16 of 24Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline16
2026Config 17 of 24Auto 10-spd, 8 cyl, 6.2 LStandard Pickup Trucks 4WD4-Wheel DrivePremium Gasoline15
2026Config 18 of 24Auto 10-spd, 8 cyl, 6.2 LStandard Pickup Trucks 4WD4-Wheel DrivePremium Gasoline15
2026Config 19 of 24Auto 10-spd, 8 cyl, 6.2 LStandard Pickup Trucks 4WD4-Wheel DrivePremium Gasoline16
2026Config 20 of 24Auto 8-spd, 4 cyl, 2.7 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline17
2026Config 21 of 24Auto 8-spd, 4 cyl, 2.7 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline18
2026Config 22 of 24Auto 8-spd, 4 cyl, 2.7 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline17
2026Config 23 of 24Auto 8-spd, 4 cyl, 2.7 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline19
2026Config 24 of 24Auto 8-spd, 4 cyl, 2.7 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline20
2025Config 1 of 23Auto (A1)Standard Pickup Trucks 4WD4-Wheel DriveElectricity64
2025Config 2 of 23Auto 10-spd, 6 cyl, 3.0 LStandard Pickup Trucks 4WD4-Wheel DriveDiesel23
2025Config 3 of 23Auto 10-spd, 6 cyl, 3.0 LStandard Pickup Trucks 2WDRear-Wheel DriveDiesel26
2025Config 4 of 23Auto 10-spd, 6 cyl, 3.0 LStandard Pickup Trucks 4WD4-Wheel DriveDiesel24
2025Config 5 of 23Auto 10-spd, 6 cyl, 3.0 LStandard Pickup Trucks 4WD4-Wheel DriveDiesel19
2025Config 6 of 23Auto 10-spd, 8 cyl, 5.3 LSpecial Purpose Vehicle 4WD4-Wheel DriveRegular Gasoline15
2025Config 7 of 23Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline16
2025Config 8 of 23Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline17
2025Config 9 of 23Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline16
2025Config 10 of 23Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline17
2025Config 11 of 23Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline16
2025Config 12 of 23Auto 10-spd, 8 cyl, 5.3 LSpecial Purpose Vehicle 2WDRear-Wheel DriveRegular Gasoline16
2025Config 13 of 23Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline18
2025Config 14 of 23Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline17
2025Config 15 of 23Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline17
2025Config 16 of 23Auto 10-spd, 8 cyl, 6.2 LStandard Pickup Trucks 4WD4-Wheel DrivePremium Gasoline15
2025Config 17 of 23Auto 10-spd, 8 cyl, 6.2 LStandard Pickup Trucks 4WD4-Wheel DrivePremium Gasoline15
2025Config 18 of 23Auto 10-spd, 8 cyl, 6.2 LStandard Pickup Trucks 4WD4-Wheel DrivePremium Gasoline16
2025Config 19 of 23Auto 8-spd, 4 cyl, 2.7 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline18
2025Config 20 of 23Auto 8-spd, 4 cyl, 2.7 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline19
2025Config 21 of 23Auto 8-spd, 4 cyl, 2.7 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline16
2025Config 22 of 23Auto 8-spd, 4 cyl, 2.7 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline19
2025Config 23 of 23Auto 8-spd, 4 cyl, 2.7 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline17
2024Config 1 of 24Auto 10-spd, 6 cyl, 3.0 LStandard Pickup Trucks 2WDRear-Wheel DriveDiesel25
2024Config 2 of 24Auto 10-spd, 6 cyl, 3.0 LStandard Pickup Trucks 4WD4-Wheel DriveDiesel24
2024Config 3 of 24Auto 10-spd, 6 cyl, 3.0 LStandard Pickup Trucks 4WD4-Wheel DriveDiesel19
2024Config 4 of 24Auto 10-spd, 6 cyl, 3.0 LStandard Pickup Trucks 4WD4-Wheel DriveDiesel22
2024Config 5 of 24Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline17
2024Config 6 of 24Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline18
2024Config 7 of 24Auto 10-spd, 8 cyl, 5.3 LSpecial Purpose Vehicle 2WDRear-Wheel DriveRegular Gasoline15
2024Config 8 of 24Auto 10-spd, 8 cyl, 5.3 LSpecial Purpose Vehicle 4WD4-Wheel DriveRegular Gasoline15
2024Config 9 of 24Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline16
2024Config 10 of 24Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline18
2024Config 11 of 24Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline16
2024Config 12 of 24Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline18
2024Config 13 of 24Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline17
2024Config 14 of 24Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline16
2024Config 15 of 24Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline17
2024Config 16 of 24Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline16
2024Config 17 of 24Auto 10-spd, 8 cyl, 6.2 LStandard Pickup Trucks 4WD4-Wheel DrivePremium Gasoline15
2024Config 18 of 24Auto 10-spd, 8 cyl, 6.2 LStandard Pickup Trucks 4WD4-Wheel DrivePremium Gasoline15
2024Config 19 of 24Auto 10-spd, 8 cyl, 6.2 LStandard Pickup Trucks 4WD4-Wheel DrivePremium Gasoline16
2024Config 20 of 24Auto 8-spd, 4 cyl, 2.7 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline19
2024Config 21 of 24Auto 8-spd, 4 cyl, 2.7 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline16
2024Config 22 of 24Auto 8-spd, 4 cyl, 2.7 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline18
2024Config 23 of 24Auto 8-spd, 4 cyl, 2.7 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline17
2024Config 24 of 24Auto 8-spd, 4 cyl, 2.7 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline20
2023Config 1 of 22Auto 10-spd, 6 cyl, 3.0 LStandard Pickup Trucks 4WD4-Wheel DriveDiesel22
2023Config 2 of 22Auto 10-spd, 6 cyl, 3.0 LStandard Pickup Trucks 4WD4-Wheel DriveDiesel24
2023Config 3 of 22Auto 10-spd, 6 cyl, 3.0 LStandard Pickup Trucks 2WDRear-Wheel DriveDiesel26
2023Config 4 of 22Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline17
2023Config 5 of 22Auto 10-spd, 8 cyl, 5.3 LSpecial Purpose Vehicle 4WD4-Wheel DriveRegular Gasoline16
2023Config 6 of 22Auto 10-spd, 8 cyl, 5.3 LSpecial Purpose Vehicle 2WDRear-Wheel DriveRegular Gasoline16
2023Config 7 of 22Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline18
2023Config 8 of 22Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline18
2023Config 9 of 22Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline18
2023Config 10 of 22Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline18
2023Config 11 of 22Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline17
2023Config 12 of 22Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline17
2023Config 13 of 22Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline16
2023Config 14 of 22Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline17
2023Config 15 of 22Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline16
2023Config 16 of 22Auto 10-spd, 8 cyl, 6.2 LStandard Pickup Trucks 4WD4-Wheel DrivePremium Gasoline15
2023Config 17 of 22Auto 10-spd, 8 cyl, 6.2 LStandard Pickup Trucks 4WD4-Wheel DrivePremium Gasoline17
2023Config 18 of 22Auto 8-spd, 4 cyl, 2.7 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline19
2023Config 19 of 22Auto 8-spd, 4 cyl, 2.7 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline20
2023Config 20 of 22Auto 8-spd, 4 cyl, 2.7 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline20
2023Config 21 of 22Auto 8-spd, 4 cyl, 2.7 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline19
2023Config 22 of 22Auto 8-spd, 4 cyl, 2.7 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline17
2022Config 1 of 34Auto 10-spd, 6 cyl, 3.0 LStandard Pickup Trucks 2WDRear-Wheel DriveDiesel26
2022Config 2 of 34Auto 10-spd, 6 cyl, 3.0 LStandard Pickup Trucks 4WD4-Wheel DriveDiesel21
2022Config 3 of 34Auto 10-spd, 6 cyl, 3.0 LStandard Pickup Trucks 4WD4-Wheel DriveDiesel24
2022Config 4 of 34Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline17
2022Config 5 of 34Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline18
2022Config 6 of 34Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline18
2022Config 7 of 34Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline16
2022Config 8 of 34Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline16
2022Config 9 of 34Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline17
2022Config 10 of 34Auto 10-spd, 8 cyl, 5.3 LSpecial Purpose Vehicle 4WD4-Wheel DriveRegular Gasoline15
2022Config 11 of 34Auto 10-spd, 8 cyl, 5.3 LSpecial Purpose Vehicle 4WD4-Wheel DriveRegular Gasoline16
2022Config 12 of 34Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline15
2022Config 13 of 34Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline15
2022Config 14 of 34Auto 10-spd, 8 cyl, 5.3 LSpecial Purpose Vehicle 2WDRear-Wheel DriveRegular Gasoline17
2022Config 15 of 34Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline16
2022Config 16 of 34Auto 10-spd, 8 cyl, 6.2 LStandard Pickup Trucks 4WD4-Wheel DrivePremium Gasoline16
2022Config 17 of 34Auto 10-spd, 8 cyl, 6.2 LStandard Pickup Trucks 4WD4-Wheel DrivePremium Gasoline17
2022Config 18 of 34Auto 10-spd, 8 cyl, 6.2 LStandard Pickup Trucks 4WD4-Wheel DrivePremium Gasoline14
2022Config 19 of 34Auto 10-spd, 8 cyl, 6.2 LStandard Pickup Trucks 4WD4-Wheel DrivePremium Gasoline16
2022Config 20 of 34Auto 6-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline15
2022Config 21 of 34Auto 6-spd, 8 cyl, 5.3 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline16
2022Config 22 of 34Auto 6-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline16
2022Config 23 of 34Auto 8-spd, 4 cyl, 2.7 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline18
2022Config 24 of 34Auto 8-spd, 4 cyl, 2.7 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline20
2022Config 25 of 34Auto 8-spd, 4 cyl, 2.7 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline17
2022Config 26 of 34Auto 8-spd, 4 cyl, 2.7 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline18
2022Config 27 of 34Auto 8-spd, 4 cyl, 2.7 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline20
2022Config 28 of 34Auto 8-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline17
2022Config 29 of 34Auto 8-spd, 8 cyl, 5.3 LSpecial Purpose Vehicle 2WDRear-Wheel DriveRegular Gasoline15
2022Config 30 of 34Auto 8-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline15
2022Config 31 of 34Auto 8-spd, 8 cyl, 5.3 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline18
2022Config 32 of 34Auto 8-spd, 8 cyl, 5.3 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline18
2022Config 33 of 34Auto 8-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline17
2022Config 34 of 34Auto 8-spd, 8 cyl, 5.3 LSpecial Purpose Vehicle 4WD4-Wheel DriveRegular Gasoline15
2021Config 1 of 23Auto 10-spd, 6 cyl, 3.0 LStandard Pickup Trucks 4WD4-Wheel DriveDiesel24
2021Config 2 of 23Auto 10-spd, 6 cyl, 3.0 LStandard Pickup Trucks 2WDRear-Wheel DriveDiesel26
2021Config 3 of 23Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline19
2021Config 4 of 23Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline18
2021Config 5 of 23Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline18
2021Config 6 of 23Auto 10-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline17
2021Config 7 of 23Auto 10-spd, 8 cyl, 6.2 LStandard Pickup Trucks 4WD4-Wheel DrivePremium Gasoline17
2021Config 8 of 23Auto 10-spd, 8 cyl, 6.2 LStandard Pickup Trucks 4WD4-Wheel DrivePremium Gasoline16
2021Config 9 of 23Auto 10-spd, 8 cyl, 6.2 LStandard Pickup Trucks 4WD4-Wheel DrivePremium Gasoline16
2021Config 10 of 23Auto 10-spd, 8 cyl, 6.2 LStandard Pickup Trucks 4WD4-Wheel DrivePremium Gasoline17
2021Config 11 of 23Auto 6-spd, 6 cyl, 4.3 LSpecial Purpose Vehicle 4WD4-Wheel DriveRegular Gasoline15
2021Config 12 of 23Auto 6-spd, 6 cyl, 4.3 LSpecial Purpose Vehicle 2WDRear-Wheel DriveRegular Gasoline17
2021Config 13 of 23Auto 6-spd, 6 cyl, 4.3 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline17
2021Config 14 of 23Auto 6-spd, 6 cyl, 4.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline17
2021Config 15 of 23Auto 6-spd, 8 cyl, 5.3 LSpecial Purpose Vehicle 4WD4-Wheel DriveRegular Gasoline15
2021Config 16 of 23Auto 6-spd, 8 cyl, 5.3 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline16
2021Config 17 of 23Auto 6-spd, 8 cyl, 5.3 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline16
2021Config 18 of 23Auto 6-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline16
2021Config 19 of 23Auto 6-spd, 8 cyl, 5.3 LStandard Pickup Trucks 4WD4-Wheel DriveRegular Gasoline16
2021Config 20 of 23Auto 6-spd, 8 cyl, 5.3 LSpecial Purpose Vehicle 2WDRear-Wheel DriveRegular Gasoline15
2021Config 21 of 23Auto 6-spd, 8 cyl, 5.3 LSpecial Purpose Vehicle 2WDRear-Wheel DriveRegular Gasoline14
2021Config 22 of 23Auto 6-spd, 8 cyl, 5.3 LStandard Pickup Trucks 2WDRear-Wheel DriveRegular Gasoline17
2021Config 23 of 23Auto 6-spd, 8 cyl, 5.3 LSpecial Purpose Vehicle 4WD4-Wheel DriveRegular Gasoline14

Data sourced from fueleconomy.gov (U.S. Department of Energy). MPG figures are EPA-tested. Fuel costs are estimates based on average fuel prices and 15,000 miles/year.

GMC Sierra data analysis

How to read this GMC Sierra data

This page lists every 2021 through 2026 GMC Sierra record we hold for this measurement — 150 rows in total, one per configuration and model year rather than a single headline figure. Figures are published as the source agency records them: we do not round, average or interpolate missing years, and a year that is absent from the table is a year with no published measurement rather than a zero. Where a manufacturer offered several drivetrains or body styles in the same year, each appears on its own row, because those variants rarely share the same numbers.

Where these GMC Sierra figures come from

Every value on this page is loaded from federal open data — EPA fuel economy submissions, NHTSA vehicle and crash-test records, and manufacturer specification filings — rather than dealer listings or copied editorial content. The GMC Sierra record refreshes as the agencies publish, which typically means new model-year rows appear in the autumn and crash-test results follow through the model year as vehicles are tested. Because certification data is filed per configuration, treat any single headline number for this vehicle with caution: the figure that applies to a specific car depends on its engine, drivetrain, body style and model year, all of which are listed separately above. If a number here disagrees with a brochure, the brochure is usually quoting the best available configuration rather than the one being sold.

Frequently Asked Questions About Sierra Vehicle Class

What class of vehicle is the GMC Sierra?

The EPA classifies the GMC Sierra as a Standard Pickup Trucks 4WD / Standard Pickup Trucks 2WD / Special Purpose Vehicle 4WD / Special Purpose Vehicle 2WD. This classification is based on interior volume and body style and affects how its fuel economy is compared with other vehicles.

Is the GMC Sierra considered a small or large vehicle?

Based on its EPA class (Standard Pickup Trucks 4WD, Standard Pickup Trucks 2WD, Special Purpose Vehicle 4WD, Special Purpose Vehicle 2WD), the GMC Sierra is grouped with vehicles of similar size and interior volume. The class can change between model years when the body is redesigned.

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