FaultScore

Worst years for a KIA Optima

Owners have filed 10,355 complaints about the KIA Optima with NHTSA across model years 2001 to 2020. More of them are about the engine & cooling than anything else.

Avoid

2013 KIA Optima

1,885 complaints — the highest FaultScore of any year, mostly engine & cooling.

Cleanest on record

2005 KIA Optima

180 complaints — the lowest FaultScore of the graded years.

Every KIA Optima year, graded

The grade compares each year against the rest of this model's own run — never against another car. Click any bar or row to open that year's report.

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded
Year Grade Complaints Crashes Fires Median miles Most reported
2020 B 203 9 5 58,009 Engine & Cooling
2019 D 318 30 9 20,000 Engine & Cooling
2018 C 333 14 17 42,100 Engine & Cooling
2017 B 354 7 14 50,000 Engine & Cooling
2016 D 1,076 45 37 68,000 Engine & Cooling
2015 D 1,400 56 115 80,000 Engine & Cooling
2014 D 786 35 63 71,937 Engine & Cooling
2013 F 1,885 77 171 85,000 Engine & Cooling
2012 D 1,263 37 120 80,000 Engine & Cooling
2011 D 778 38 51 90,000 Engine & Cooling
2010 C 99 11 2 70,000 Transmission & Drivetrain
2009 B 166 6 10 65,000 Transmission & Drivetrain
2008 C 188 26 7 69,818 Airbags
2007 C 217 20 6 79,000 Airbags
2006 B 214 3 1 64,200 Airbags
2005 A 180 7 2 80,000 Doors, Latches & Locks
2004 B 306 14 4 80,034 Doors, Latches & Locks
2003 B 190 10 2 84,200 Doors, Latches & Locks
2002 C 168 28 5 89,000 Body & Structure
2001 C 231 26 0 78,500 Body & Structure

What breaks on a KIA Optima

Across every model year on file. Follow a row for that part's complaints and the year it was worst.

Engine & Cooling 3,390 32.7%

Worst in 2013

Worst in 2013

Worst in 2013

Steering 756 7.3%

Worst in 2013

Airbags 571 5.5%

Worst in 2007

Body & Structure 565 5.5%

Worst in 2013

Brakes 534 5.2%

Worst in 2013

Worst in 2016

Worst in 2013

Lights 362 3.5%

Worst in 2011

Worst in 2012

Worst in 2004

Worst in 2016

Suspension 183 1.8%

Worst in 2001

Exactly what failed on a KIA Optima

The named sub-assemblies behind those complaints, across every model year.

Body 444 56.9%
Frontal 49 6.3%
Frame AND Members 44 5.6%
Sun/Moon Roof Assembly 43 5.5%
Warnings 36 4.6%
Door 35 4.5%
Headlights 34 4.4%
Front 33 4.2%
Latch 32 4.1%
Automatic Emergency Braking 31 4.0%

Complaints filed over time

Every complaint about every KIA Optima, by the month it reached NHTSA.

May 2001 peak 122 Aug 2026

KIA Optima problems by state

Where owners filed from. Heavier states are usually just bigger markets, but a part that fails in heat or salt shows up here first.

Compare the KIA Optima

Side by side on complaint history. Remember that raw totals track how many were sold as much as how good they were.