GMC Sierra — All Years
We have GMC Sierra specifications on file for 5 model years, 2020–2024, covering pickup trims. Select a year below for full engine, fuel economy, dimensions and safety data.
| Year | Engine | Fuel | MPG (UK) | NHTSA |
|---|---|---|---|---|
| 2024 | 5.3L 8-cyl | Regular Gasoline | 22 | — |
| 2023 | 5.3L 8-cyl | Regular Gasoline | 22 | — |
| 2022 | 5.3L 8-cyl | Regular Gasoline | 20 | — |
| 2021 | 5.3L 8-cyl | Regular Gasoline | 20 | — |
| 2020 | 5.3L 8-cyl | Regular Gasoline | 23 | — |
Frequently Asked Questions
What years is the GMC Sierra covered on this site?
We have data for 5 model years of the GMC Sierra, from 2020 to 2024.
Which GMC Sierra year has the best fuel economy?
The 2020 model returns the highest combined MPG (UK) on record here, at 23 mpg.
Does the GMC Sierra 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?
The GMC Sierra is classed as a pickup on this site.
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