AutoSpecData

GMC Sierra Transmission

The 2026 GMC Sierra uses Automatic (A1), Automatic 10-spd, Automatic 8-spd and other transmissions, depending on engine and trim.

Latest model year (2026):

The GMC Sierra comes with Automatic (A1), Automatic 10-spd, Automatic 8-spd depending on engine and trim.

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

GMC Sierra Transmission — All Years

YearTrimEngineTransmissionDriveMPG Comb.
2026Config 1 of 24Auto (A1)—Automatic (A1)4-Wheel Drive64
2026Config 2 of 24Auto (A1)—Automatic (A1)4-Wheel Drive67
2026Config 3 of 24Auto (A1)—Automatic (A1)4-Wheel Drive68
2026Config 4 of 24Auto 10-spd, 6 cyl, 3.0 L6 3.0LAutomatic 10-spd4-Wheel Drive23
2026Config 5 of 24Auto 10-spd, 6 cyl, 3.0 L6 3.0LAutomatic 10-spd4-Wheel Drive19
2026Config 6 of 24Auto 10-spd, 6 cyl, 3.0 L6 3.0LAutomatic 10-spd4-Wheel Drive24
2026Config 7 of 24Auto 10-spd, 6 cyl, 3.0 L6 3.0LAutomatic 10-spdRear-Wheel Drive25
2026Config 8 of 24Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive17
2026Config 9 of 24Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive17
2026Config 10 of 24Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spdRear-Wheel Drive18
2026Config 11 of 24Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spdRear-Wheel Drive17
2026Config 12 of 24Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive15
2026Config 13 of 24Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spdRear-Wheel Drive16
2026Config 14 of 24Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive16
2026Config 15 of 24Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive16
2026Config 16 of 24Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive16
2026Config 17 of 24Auto 10-spd, 8 cyl, 6.2 L8 6.2LAutomatic 10-spd4-Wheel Drive15
2026Config 18 of 24Auto 10-spd, 8 cyl, 6.2 L8 6.2LAutomatic 10-spd4-Wheel Drive15
2026Config 19 of 24Auto 10-spd, 8 cyl, 6.2 L8 6.2LAutomatic 10-spd4-Wheel Drive16
2026Config 20 of 24Auto 8-spd, 4 cyl, 2.7 L4 2.7LAutomatic 8-spd4-Wheel Drive17
2026Config 21 of 24Auto 8-spd, 4 cyl, 2.7 L4 2.7LAutomatic 8-spd4-Wheel Drive18
2026Config 22 of 24Auto 8-spd, 4 cyl, 2.7 L4 2.7LAutomatic 8-spd4-Wheel Drive17
2026Config 23 of 24Auto 8-spd, 4 cyl, 2.7 L4 2.7LAutomatic 8-spdRear-Wheel Drive19
2026Config 24 of 24Auto 8-spd, 4 cyl, 2.7 L4 2.7LAutomatic 8-spdRear-Wheel Drive20
2025Config 1 of 23Auto (A1)—Automatic (A1)4-Wheel Drive64
2025Config 2 of 23Auto 10-spd, 6 cyl, 3.0 L6 3.0LAutomatic 10-spd4-Wheel Drive23
2025Config 3 of 23Auto 10-spd, 6 cyl, 3.0 L6 3.0LAutomatic 10-spdRear-Wheel Drive26
2025Config 4 of 23Auto 10-spd, 6 cyl, 3.0 L6 3.0LAutomatic 10-spd4-Wheel Drive24
2025Config 5 of 23Auto 10-spd, 6 cyl, 3.0 L6 3.0LAutomatic 10-spd4-Wheel Drive19
2025Config 6 of 23Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive15
2025Config 7 of 23Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive16
2025Config 8 of 23Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive17
2025Config 9 of 23Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive16
2025Config 10 of 23Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive17
2025Config 11 of 23Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive16
2025Config 12 of 23Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spdRear-Wheel Drive16
2025Config 13 of 23Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spdRear-Wheel Drive18
2025Config 14 of 23Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spdRear-Wheel Drive17
2025Config 15 of 23Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive17
2025Config 16 of 23Auto 10-spd, 8 cyl, 6.2 L8 6.2LAutomatic 10-spd4-Wheel Drive15
2025Config 17 of 23Auto 10-spd, 8 cyl, 6.2 L8 6.2LAutomatic 10-spd4-Wheel Drive15
2025Config 18 of 23Auto 10-spd, 8 cyl, 6.2 L8 6.2LAutomatic 10-spd4-Wheel Drive16
2025Config 19 of 23Auto 8-spd, 4 cyl, 2.7 L4 2.7LAutomatic 8-spd4-Wheel Drive18
2025Config 20 of 23Auto 8-spd, 4 cyl, 2.7 L4 2.7LAutomatic 8-spdRear-Wheel Drive19
2025Config 21 of 23Auto 8-spd, 4 cyl, 2.7 L4 2.7LAutomatic 8-spd4-Wheel Drive16
2025Config 22 of 23Auto 8-spd, 4 cyl, 2.7 L4 2.7LAutomatic 8-spdRear-Wheel Drive19
2025Config 23 of 23Auto 8-spd, 4 cyl, 2.7 L4 2.7LAutomatic 8-spd4-Wheel Drive17
2024Config 1 of 24Auto 10-spd, 6 cyl, 3.0 L6 3.0LAutomatic 10-spdRear-Wheel Drive25
2024Config 2 of 24Auto 10-spd, 6 cyl, 3.0 L6 3.0LAutomatic 10-spd4-Wheel Drive24
2024Config 3 of 24Auto 10-spd, 6 cyl, 3.0 L6 3.0LAutomatic 10-spd4-Wheel Drive19
2024Config 4 of 24Auto 10-spd, 6 cyl, 3.0 L6 3.0LAutomatic 10-spd4-Wheel Drive22
2024Config 5 of 24Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive17
2024Config 6 of 24Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spdRear-Wheel Drive18
2024Config 7 of 24Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spdRear-Wheel Drive15
2024Config 8 of 24Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive15
2024Config 9 of 24Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive16
2024Config 10 of 24Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spdRear-Wheel Drive18
2024Config 11 of 24Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spdRear-Wheel Drive16
2024Config 12 of 24Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spdRear-Wheel Drive18
2024Config 13 of 24Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive17
2024Config 14 of 24Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive16
2024Config 15 of 24Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive17
2024Config 16 of 24Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive16
2024Config 17 of 24Auto 10-spd, 8 cyl, 6.2 L8 6.2LAutomatic 10-spd4-Wheel Drive15
2024Config 18 of 24Auto 10-spd, 8 cyl, 6.2 L8 6.2LAutomatic 10-spd4-Wheel Drive15
2024Config 19 of 24Auto 10-spd, 8 cyl, 6.2 L8 6.2LAutomatic 10-spd4-Wheel Drive16
2024Config 20 of 24Auto 8-spd, 4 cyl, 2.7 L4 2.7LAutomatic 8-spdRear-Wheel Drive19
2024Config 21 of 24Auto 8-spd, 4 cyl, 2.7 L4 2.7LAutomatic 8-spd4-Wheel Drive16
2024Config 22 of 24Auto 8-spd, 4 cyl, 2.7 L4 2.7LAutomatic 8-spd4-Wheel Drive18
2024Config 23 of 24Auto 8-spd, 4 cyl, 2.7 L4 2.7LAutomatic 8-spd4-Wheel Drive17
2024Config 24 of 24Auto 8-spd, 4 cyl, 2.7 L4 2.7LAutomatic 8-spdRear-Wheel Drive20
2023Config 1 of 22Auto 10-spd, 6 cyl, 3.0 L6 3.0LAutomatic 10-spd4-Wheel Drive22
2023Config 2 of 22Auto 10-spd, 6 cyl, 3.0 L6 3.0LAutomatic 10-spd4-Wheel Drive24
2023Config 3 of 22Auto 10-spd, 6 cyl, 3.0 L6 3.0LAutomatic 10-spdRear-Wheel Drive26
2023Config 4 of 22Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive17
2023Config 5 of 22Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive16
2023Config 6 of 22Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spdRear-Wheel Drive16
2023Config 7 of 22Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spdRear-Wheel Drive18
2023Config 8 of 22Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spdRear-Wheel Drive18
2023Config 9 of 22Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spdRear-Wheel Drive18
2023Config 10 of 22Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spdRear-Wheel Drive18
2023Config 11 of 22Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive17
2023Config 12 of 22Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive17
2023Config 13 of 22Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive16
2023Config 14 of 22Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive17
2023Config 15 of 22Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive16
2023Config 16 of 22Auto 10-spd, 8 cyl, 6.2 L8 6.2LAutomatic 10-spd4-Wheel Drive15
2023Config 17 of 22Auto 10-spd, 8 cyl, 6.2 L8 6.2LAutomatic 10-spd4-Wheel Drive17
2023Config 18 of 22Auto 8-spd, 4 cyl, 2.7 L4 2.7LAutomatic 8-spd4-Wheel Drive19
2023Config 19 of 22Auto 8-spd, 4 cyl, 2.7 L4 2.7LAutomatic 8-spdRear-Wheel Drive20
2023Config 20 of 22Auto 8-spd, 4 cyl, 2.7 L4 2.7LAutomatic 8-spdRear-Wheel Drive20
2023Config 21 of 22Auto 8-spd, 4 cyl, 2.7 L4 2.7LAutomatic 8-spd4-Wheel Drive19
2023Config 22 of 22Auto 8-spd, 4 cyl, 2.7 L4 2.7LAutomatic 8-spd4-Wheel Drive17
2022Config 1 of 34Auto 10-spd, 6 cyl, 3.0 L6 3.0LAutomatic 10-spdRear-Wheel Drive26
2022Config 2 of 34Auto 10-spd, 6 cyl, 3.0 L6 3.0LAutomatic 10-spd4-Wheel Drive21
2022Config 3 of 34Auto 10-spd, 6 cyl, 3.0 L6 3.0LAutomatic 10-spd4-Wheel Drive24
2022Config 4 of 34Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive17
2022Config 5 of 34Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spdRear-Wheel Drive18
2022Config 6 of 34Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spdRear-Wheel Drive18
2022Config 7 of 34Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive16
2022Config 8 of 34Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive16
2022Config 9 of 34Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive17
2022Config 10 of 34Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive15
2022Config 11 of 34Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive16
2022Config 12 of 34Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive15
2022Config 13 of 34Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive15
2022Config 14 of 34Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spdRear-Wheel Drive17
2022Config 15 of 34Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive16
2022Config 16 of 34Auto 10-spd, 8 cyl, 6.2 L8 6.2LAutomatic 10-spd4-Wheel Drive16
2022Config 17 of 34Auto 10-spd, 8 cyl, 6.2 L8 6.2LAutomatic 10-spd4-Wheel Drive17
2022Config 18 of 34Auto 10-spd, 8 cyl, 6.2 L8 6.2LAutomatic 10-spd4-Wheel Drive14
2022Config 19 of 34Auto 10-spd, 8 cyl, 6.2 L8 6.2LAutomatic 10-spd4-Wheel Drive16
2022Config 20 of 34Auto 6-spd, 8 cyl, 5.3 L8 5.3LAutomatic 6-spd4-Wheel Drive15
2022Config 21 of 34Auto 6-spd, 8 cyl, 5.3 L8 5.3LAutomatic 6-spdRear-Wheel Drive16
2022Config 22 of 34Auto 6-spd, 8 cyl, 5.3 L8 5.3LAutomatic 6-spd4-Wheel Drive16
2022Config 23 of 34Auto 8-spd, 4 cyl, 2.7 L4 2.7LAutomatic 8-spd4-Wheel Drive18
2022Config 24 of 34Auto 8-spd, 4 cyl, 2.7 L4 2.7LAutomatic 8-spdRear-Wheel Drive20
2022Config 25 of 34Auto 8-spd, 4 cyl, 2.7 L4 2.7LAutomatic 8-spd4-Wheel Drive17
2022Config 26 of 34Auto 8-spd, 4 cyl, 2.7 L4 2.7LAutomatic 8-spd4-Wheel Drive18
2022Config 27 of 34Auto 8-spd, 4 cyl, 2.7 L4 2.7LAutomatic 8-spdRear-Wheel Drive20
2022Config 28 of 34Auto 8-spd, 8 cyl, 5.3 L8 5.3LAutomatic 8-spd4-Wheel Drive17
2022Config 29 of 34Auto 8-spd, 8 cyl, 5.3 L8 5.3LAutomatic 8-spdRear-Wheel Drive15
2022Config 30 of 34Auto 8-spd, 8 cyl, 5.3 L8 5.3LAutomatic 8-spd4-Wheel Drive15
2022Config 31 of 34Auto 8-spd, 8 cyl, 5.3 L8 5.3LAutomatic 8-spdRear-Wheel Drive18
2022Config 32 of 34Auto 8-spd, 8 cyl, 5.3 L8 5.3LAutomatic 8-spdRear-Wheel Drive18
2022Config 33 of 34Auto 8-spd, 8 cyl, 5.3 L8 5.3LAutomatic 8-spd4-Wheel Drive17
2022Config 34 of 34Auto 8-spd, 8 cyl, 5.3 L8 5.3LAutomatic 8-spd4-Wheel Drive15
2021Config 1 of 23Auto 10-spd, 6 cyl, 3.0 L6 3.0LAutomatic 10-spd4-Wheel Drive24
2021Config 2 of 23Auto 10-spd, 6 cyl, 3.0 L6 3.0LAutomatic 10-spdRear-Wheel Drive26
2021Config 3 of 23Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive19
2021Config 4 of 23Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive18
2021Config 5 of 23Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive18
2021Config 6 of 23Auto 10-spd, 8 cyl, 5.3 L8 5.3LAutomatic 10-spd4-Wheel Drive17
2021Config 7 of 23Auto 10-spd, 8 cyl, 6.2 L8 6.2LAutomatic 10-spd4-Wheel Drive17
2021Config 8 of 23Auto 10-spd, 8 cyl, 6.2 L8 6.2LAutomatic 10-spd4-Wheel Drive16
2021Config 9 of 23Auto 10-spd, 8 cyl, 6.2 L8 6.2LAutomatic 10-spd4-Wheel Drive16
2021Config 10 of 23Auto 10-spd, 8 cyl, 6.2 L8 6.2LAutomatic 10-spd4-Wheel Drive17
2021Config 11 of 23Auto 6-spd, 6 cyl, 4.3 L6 4.3LAutomatic 6-spd4-Wheel Drive15
2021Config 12 of 23Auto 6-spd, 6 cyl, 4.3 L6 4.3LAutomatic 6-spdRear-Wheel Drive17
2021Config 13 of 23Auto 6-spd, 6 cyl, 4.3 L6 4.3LAutomatic 6-spdRear-Wheel Drive17
2021Config 14 of 23Auto 6-spd, 6 cyl, 4.3 L6 4.3LAutomatic 6-spd4-Wheel Drive17
2021Config 15 of 23Auto 6-spd, 8 cyl, 5.3 L8 5.3LAutomatic 6-spd4-Wheel Drive15
2021Config 16 of 23Auto 6-spd, 8 cyl, 5.3 L8 5.3LAutomatic 6-spdRear-Wheel Drive16
2021Config 17 of 23Auto 6-spd, 8 cyl, 5.3 L8 5.3LAutomatic 6-spdRear-Wheel Drive16
2021Config 18 of 23Auto 6-spd, 8 cyl, 5.3 L8 5.3LAutomatic 6-spd4-Wheel Drive16
2021Config 19 of 23Auto 6-spd, 8 cyl, 5.3 L8 5.3LAutomatic 6-spd4-Wheel Drive16
2021Config 20 of 23Auto 6-spd, 8 cyl, 5.3 L8 5.3LAutomatic 6-spdRear-Wheel Drive15
2021Config 21 of 23Auto 6-spd, 8 cyl, 5.3 L8 5.3LAutomatic 6-spdRear-Wheel Drive14
2021Config 22 of 23Auto 6-spd, 8 cyl, 5.3 L8 5.3LAutomatic 6-spdRear-Wheel Drive17
2021Config 23 of 23Auto 6-spd, 8 cyl, 5.3 L8 5.3LAutomatic 6-spd4-Wheel Drive14

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 Transmission

What transmission does the GMC Sierra have?

The GMC Sierra is offered with Automatic (A1), Automatic 10-spd, Automatic 8-spd, Automatic 6-spd (2026 and earlier model years). Availability depends on engine and trim — see the year-by-year table above.

Does the GMC Sierra come with a manual transmission?

No manual transmission is listed for the GMC Sierra in the EPA data we track; all listed configurations are automatic or CVT.

View full GMC Sierra specs

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