GMC ยท 2026
2026 GMC Sierra 4WD with Sport Mode
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 |
|---|---|---|---|---|---|---|
| 2.7L 4-cyl | Automatic 8-spd | Regular | 17 | 18 | 17 | 513 |
| 5.3L 8-cyl | Automatic 10-spd | Regular | 15 | 19 | 17 | 522 |
| 3.0L 6-cyl | Automatic 10-spd | Diesel | 22 | 26 | 24 | 428 |
Safety recalls (NHTSA)
No NHTSA recall campaigns on record for this model year in our latest refresh.
Frequently Asked Questions
What is the fuel economy of a 2026 GMC Sierra 4WD with Sport Mode?
EPA figures for the 2026 GMC Sierra 4WD with Sport Mode reach 24 MPG combined depending on configuration; the table on this page lists every tested engine and transmission combination.
Are there recalls on the 2026 GMC Sierra 4WD with Sport Mode?
No NHTSA recall campaigns are on record for the 2026 GMC Sierra 4WD with Sport Mode in our latest data 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.