2009 GMC Sierra K15

Truck Regular
GMC Sierra K15 2009
16MPG Combined
9 Trims
← 2008 2009 2010 →
Updated February 27, 2026

Get the full picture on the 2009 GMC Sierra K15. As a Truck, it achieves 14–16 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.

2009 GMC Sierra K15 Specifications

SpecValue
Combined MPG14–16 combined MPG depending on trim
City MPG14
Highway MPG20
Body StyleTruck
Fuel TypeRegular
DriveAWD/4WD
Available Trims9

Available Trims

TrimMPG (City/Hwy/Combined)EngineTransmission
Auto14/19/165.3L 8cylAutomatic 4-spd
Auto14/20/165.3L 8cylAutomatic 6-spd
Auto13/18/156.0L 8cylAutomatic 6-spd
Auto14/19/165.3L 8cylAutomatic 4-spd
Auto14/20/165.3L 8cylAutomatic 6-spd
Auto12/19/146.2L 8cylAutomatic 6-spd
Auto14/18/154.3L 6cylAutomatic 4-spd
Auto14/18/154.8L 8cylAutomatic 4-spd
Auto12/19/146.2L 8cylAutomatic 6-spd

Annual Fuel Cost

Based on EPA estimates, the 2009 GMC Sierra K15 costs approximately $2,905 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.

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