2017 GMC Sierra K15

Truck Regular
GMC Sierra K15 2017
19MPG Combined
5 Trims
← 2016 2017 2018 →
Updated February 27, 2026

Get the full picture on the 2017 GMC Sierra K15. As a Truck, it achieves 17–19 combined MPG depending on trim and has not yet been rated by NHTSA. Below you’ll find detailed specs for every trim, plus recall information and competitor comparisons.

2017 GMC Sierra K15 Specifications

SpecValue
Combined MPG17–19 combined MPG depending on trim
City MPG17
Highway MPG22
Body StyleTruck
Fuel TypeRegular
Drive4WD
Available Trims5

Available Trims

TrimMPG (City/Hwy/Combined)EngineTransmission
Auto15/20/176.2L 8cylAutomatic 8-spd
Auto15/20/175.3L 8cylAutomatic 8-spd
Auto16/22/185.3L 8cylAutomatic 6-spd
Auto16/22/185.3L 8cylAutomatic 6-spd
Auto17/22/194.3L 6cylAutomatic 6-spd

Annual Fuel Cost

Based on EPA estimates, the 2017 GMC Sierra K15 costs approximately $2,480 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.

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