GMC ยท 2020
2020 GMC Sierra 4WD AT4
Official EPA fuel economy and NHTSA recall record, best combined figure 24 MPG.
Fuel economy (EPA)
| Engine | Transmission | Fuel | City | Highway | Combined | CO2 g/mi |
|---|---|---|---|---|---|---|
| 5.3L 8-cyl | Automatic 8-spd | Regular | 16 | 21 | 18 | 486 |
| 5.3L 8-cyl | Automatic 10-spd | Regular | 16 | 21 | 18 | 494 |
| 6.2L 8-cyl | Automatic 10-spd | Premium | 15 | 19 | 17 | 515 |
| 5.3L 8-cyl | Automatic 6-spd | Regular | 14 | 18 | 16 | 556 |
| 3.0L 6-cyl | Automatic 10-spd | Diesel | 22 | 26 | 24 | 427 |
Safety recalls (NHTSA)
No NHTSA recall campaigns on record for this model year in our latest refresh.
Sources: EPA fueleconomy.gov, the NHTSA recalls, complaints and 5-Star Safety Ratings databases (all US public data), refreshed monthly. Recall texts are quoted from the official record. Details on About & Data Sources.