Closest available photo (2023 model year); you're viewing the 2021.
Overview
- Body
- Heavy Duty Pickup TruckNHTSA vPIC, from NHTSA vPIC, last updated 10/15/2026
- Drivetrain
- 4-Wheel DriveNHTSA vPIC, from NHTSA vPIC, last updated 10/15/2026
- Powertrain
- DieselNHTSA vPIC, from NHTSA vPIC, last updated 10/15/2026
Engine & performance
Efficiency
- Fuel economy
- Not EPA-ratedMost heavy-duty trucks and vans (over 8,500 lb gross vehicle weight rating) are exempt from EPA fuel economy testing, so no official MPG exists for this vehicle.
Warranty manufacturer terms, by make
- Basic
- 3 yr / 36k mi
- Powertrain
- 5 yr / 60k mi
- Roadside assistance
- 5 yr / 60k mi
- Maintenance
- 1 yr / 12k mi
- EV battery
- 8 yr / 100k mi
Source: www.gmfleet.com as of 2026-06
Information is gathered on a best-effort basis from public sources, may be incomplete or out of date, and is not purchasing or financial advice. Verify with the manufacturer or dealer before buying.