2019 GMC Sierra C10

Truck Regular
GMC Sierra C10 2019
21MPG Combined
6 Trims
2019
Updated February 27, 2026

Get the full picture on the 2019 GMC Sierra C10. As a Truck, it achieves 17–21 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.

2019 GMC Sierra C10 Specifications

SpecValue
Combined MPG17–21 combined MPG depending on trim
City MPG20
Highway MPG23
Body StyleTruck
Fuel TypeRegular
DriveRWD
Available Trims6

Available Trims

TrimMPG (City/Hwy/Combined)EngineTransmission
Auto17/23/195.3L 8cylAutomatic 8-spd
Sport20/23/212.7L 4cylAutomatic 8-spd
Auto15/21/175.3L 8cylAutomatic 6-spd
Auto19/22/202.7L 4cylAutomatic 8-spd
Auto16/21/174.3L 6cylAutomatic 6-spd
Auto15/20/175.3L 8cylAutomatic 6-spd

Annual Fuel Cost

Based on EPA estimates, the 2019 GMC Sierra C10 costs approximately $2,400 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.

Compare the 2019 GMC Sierra C10

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Other Model Years

  • 2019 (this page)

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