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Vehicle profile

GMC Sierra 4WD AT4

Years: 2020–2021Best EPA combined: 24 MPG

Year-by-year

Year	Trims	Best MPG	Complaints	Fatal crashes	Inventory
2020	5	24	—	—	—
2021	5	24	—	—	—

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Data sources: NHTSA · EPA · FARS · DOE AFDC · EIA · Cars.com