FaultScore

Ford Flex vs Tesla Model S

Both cars' complete complaint records, side by side.

Read the totals carefully. NHTSA publishes no sales figures, so the car that sold more collects more complaints regardless of quality. The rows worth weighing are the proportions — the share of complaints that involved harm, and which part dominates.

Measure Ford Flex Tesla Model S
Complaints on file 2,511 5,283
Model years covered 2009–2019 2012–2026
Worst model year 2009 2016
Best model year 2017 2024
Crashes reported 105 659
Fires reported 18 94
Injuries reported 74 207
Deaths reported 3 35
Most complained-about part Electrical System Electrical System
Share of complaints involving harm 8% 18.8%

Ford Flex by year

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Tesla Model S by year

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Electrical System 1,001 18.9%
Suspension 730 13.8%
Steering 344 6.5%
Brakes 208 3.9%
Lights 195 3.7%