KIA Soul vs Toyota Prius

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	KIA Soul	Toyota Prius
Complaints on file	7,574	15,604
Model years covered	2010–2025	2000–2026
Worst model year	2015	2010
Best model year	2024	2025
Crashes reported	411	1,472
Fires reported	483	101
Injuries reported	286	604
Deaths reported	15	18
Most complained-about part	Engine & Cooling	Brakes
Share of complaints involving harm	15.8%	14.1%

KIA Soul by year

195 271 673 869 1,228 1,223 1,155 356 297 198 509 314 133 90 42 21

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

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

What breaks

Engine & Cooling 3,527 46.6%

Other & Unspecified 636 8.4%

Electrical System 526 6.9%

Steering 518 6.8%

Transmission & Drivetrain 426 5.6%

Fuel & Propulsion 366 4.8%

Brakes 358 4.7%

Lights 259 3.4%

Toyota Prius by year

4 215 201 123 737 1,298 1,690 2,451 1,894 644 3,486 665 544 550 283 217 215 127 46 54 23 11 31 26 35 29 5

00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

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

What breaks

Brakes 4,578 29.3%

Lights 3,536 22.7%

Electrical System 1,608 10.3%

Acceleration & Cruise Control 1,049 6.7%

Engine & Cooling 785 5.0%

Other & Unspecified 559 3.6%

Airbags 436 2.8%

Body & Structure 432 2.8%