GMC Sierra K15 Cab Chassis 4WD
2015–2018 · 6 configurations
The GMC Sierra K15 Cab Chassis 4WD has been tested by the EPA across 6 different configurations spanning model years 2015 through 2018. Over this period, the Sierra K15 Cab Chassis 4WD has achieved combined fuel economy ratings ranging from 17 MPG to 18 MPG, with an overall average of 17 MPG across all engine, transmission, and drivetrain combinations. Below you will find a comprehensive breakdown of every tested configuration, organized by model year. Click any row to view detailed specifications, emissions data, and annual fuel cost estimates for that specific vehicle.
All Configurations
| Year | Powertrain | Annual Cost | City | Hwy | Comb MPG | Compare |
|---|---|---|---|---|---|---|
| 2018 | 5.3L 8-cyl 4-Wheel Drive Automatic 6-spd • Regular | $3,500 | 15 | 19 | 17MPG | |
| 2017 | 5.3L 8-cyl 4-Wheel Drive Automatic 6-spd • Regular | $3,500 | 15 | 19 | 17MPG | |
| 2016 | 5.3L 8-cyl 4-Wheel Drive Automatic 6-spd • Regular | $3,500 | 15 | 19 | 17MPG | |
| 2015 | 5.3L 8-cyl 4-Wheel Drive Automatic 6-spd • Gasoline or E85 | $3,500 | 15 | 19 | 17MPG | |
| 2015 | 5.3L 8-cyl 4-Wheel Drive Automatic 6-spd • Regular | $3,500 | 15 | 19 | 17MPG | |
| 2015 | 4.3L 6-cyl 4-Wheel Drive Automatic 6-spd • Gasoline or E85 | $3,300 | 16 | 20 | 18MPG |
Historical Efficiency
Safety Rating History
NHTSA typically tests the base platform of a vehicle and does not test every specific trim level. This specific configuration (Sierra K15 Cab Chassis 4WD) has not been independently rated.
Complaint & Incident History
The data below represents all official consumer complaints reported to the National Highway Traffic Safety Administration (NHTSA) for the GMC Sierra K15 Cab Chassis 4WD. Click on any year to drill down and read the unedited, raw problem narratives submitted directly by vehicle owners.
Fatal Crash History (FARS)
The Fatality Analysis Reporting System (FARS) is a nationwide census providing NHTSA, Congress and the American public yearly data regarding fatal injuries suffered in motor vehicle traffic crashes. The data below represents historical totals for the GMC GMC C, K, R, V-series pickup/ Sierra grouping as reported by the NHTSA.
Total Fatal Crashes1,067Total Deaths282
Incident Risk Profile
Breakdown of the initial point of impact across all fatal collisions involving this model.
Year-by-Year Trend & Severity
Platform Recall Intelligence
Most Recalled Components
Tip: Click any component bar to view detailed recall narratives.