Cadillac DTS vs KIA RIO

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	Cadillac DTS	KIA RIO
Complaints on file	729	1,816
Model years covered	2004–2011	2000–2023
Worst model year	2006	2002
Best model year	2009	2023
Crashes reported	56	229
Fires reported	30	149
Injuries reported	51	163
Deaths reported	0	8
Most complained-about part	Electrical System	Engine & Cooling
Share of complaints involving harm	18.8%	30.2%

Cadillac DTS by year

8 10 356 137 121 46 32 19

04 05 06 07 08 09 10 11

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

What breaks

Electrical System 180 24.7%

Lights 110 15.1%

Engine & Cooling 97 13.3%

Steering 59 8.1%

Brakes 34 4.7%

Airbags 33 4.5%

Seats 28 3.8%

Fuel & Propulsion 25 3.4%

KIA RIO by year

4 355 171 103 53 46 89 64 57 54 38 32 75 218 75 69 110 37 42 29 37 23 15 20

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

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

What breaks

Engine & Cooling 399 22.0%

Airbags 274 15.1%

Brakes 184 10.1%

Electrical System 159 8.8%

Other & Unspecified 130 7.2%

Fuel & Propulsion 102 5.6%

Transmission & Drivetrain 98 5.4%

Seat Belts 64 3.5%