2017 GMC Sierra
NHTSA has received 77 complaints about the 2017 GMC Sierra, and 29% of them involve drivetrain & axles. Next are brakes (26%) and electrical system (8%).
At a glance
- Complaints
- 77 filed with NHTSA
- Most reported
- Drivetrain & axles 29% of complaints
- Fuel economy
- 17 to 20 MPG combined
Sources: NHTSA complaints, recalls and 5-Star ratings; U.S. EPA
Problems owners report
NHTSA has received 77 complaints about the 2017 GMC Sierra, and 29% of them involve drivetrain & axles. Next are brakes (26%) and electrical system (8%).
Mileage, severity and owner comments for the 2017 GMC Sierra
Fuel economy
The EPA lists 14 versions of the 2017 GMC Sierra. Combined fuel economy ranges from 17 to 20 MPG; the most efficient version is rated 18 city / 24 highway.