GMC Sierra C15 — All Years
We have GMC Sierra C15 specifications on file for 9 model years, 2010–2018, covering pickup trims. Select a year below for full engine, fuel economy, dimensions and safety data.
| Year | Engine | Fuel | MPG (UK) | NHTSA |
|---|---|---|---|---|
| 2018 | 5.3L 8-cyl | Regular Gasoline | 23 | — |
| 2017 | 5.3L 8-cyl | Regular Gasoline | 23 | — |
| 2016 | 5.3L 8-cyl | Regular Gasoline | 23 | — |
| 2015 | 5.3L 8-cyl | Regular Gasoline | 23 | — |
| 2014 | 5.3L 8-cyl | Regular Gasoline | 23 | — |
| 2013 | 5.3L 8-cyl | Regular Gasoline | 20 | — |
| 2012 | 5.3L 8-cyl | Regular Gasoline | 20 | — |
| 2011 | 5.3L 8-cyl | Regular Gasoline | 20 | — |
| 2010 | 5.3L 8-cyl | Regular Gasoline | 20 | — |
Frequently Asked Questions
What years is the GMC Sierra C15 covered on this site?
We have data for 9 model years of the GMC Sierra C15, from 2010 to 2018.
Which GMC Sierra C15 year has the best fuel economy?
The 2018 model returns the highest combined MPG (UK) on record here, at 23 mpg.
Does the GMC Sierra C15 have a 5-star NHTSA safety rating?
No model year of this car currently has a 5-star overall NHTSA rating on record here — check the individual year pages above for the exact rating available.
What body style is the GMC Sierra C15?
The GMC Sierra C15 is classed as a pickup on this site.
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