Model overview · 20 published model years
Kia Optima complaints by model year
Compare published NHTSA complaint evidence across Kia Optima model years. Each signal is benchmarked within that year's same-segment, same-era cohort, so it is not a mechanical failure rate or complete reliability score.
20
Published model-year records
7,440
Matched complaint incidents
2013
Highest signal in this published set
8.1
Signal for that model year
Model-year records · newest first
Open the evidence for each year
2020Optima2018 to 2022 midsize sedan4.5interval 3.6 to 5.2137matched incidents2019Optima2017 to 2021 midsize sedan5.5interval 4.2 to 6.4203matched incidents2018Optima2016 to 2020 midsize sedan4.5interval 3.6 to 5.5229matched incidents2017Optima2015 to 2019 midsize sedan4.4interval 3.6 to 5.0252matched incidents2016Optima2014 to 2018 midsize sedan6.9interval 6.7 to 7.3748matched incidents2015Optima2013 to 2017 midsize sedan7.9interval 7.5 to 8.11,000matched incidents2014Optima2012 to 2016 midsize sedan4.5interval 4.3 to 4.9578matched incidents2013Optima2011 to 2015 midsize sedan8.1interval 7.9 to 8.51,372matched incidents2012Optima2010 to 2014 midsize sedan6.9interval 6.5 to 7.1916matched incidents2011Optima2009 to 2013 midsize sedan5.3interval 4.9 to 5.7590matched incidents2010Optima2008 to 2012 midsize sedan0.7interval 0.3 to 0.975matched incidents2009Optima2007 to 2011 midsize sedan1.3interval 1.1 to 1.7116matched incidents2008Optima2006 to 2010 midsize sedan1.5interval 1.3 to 2.7143matched incidents2007Optima2005 to 2009 midsize sedan3.0interval 1.5 to 3.6166matched incidents2006Optima2004 to 2008 midsize sedan2.2interval 1.1 to 3.2155matched incidents2005Optima2003 to 2007 midsize sedan1.2interval 1.0 to 2.7144matched incidents2004Optima2002 to 2006 midsize sedan3.9interval 3.4 to 3.9225matched incidents2003Optima2001 to 2005 midsize sedan1.3interval 1.3 to 2.7141matched incidents2002Optima2000 to 2004 midsize sedan1.3interval 1.1 to 1.6107matched incidents2001Optima1999 to 2003 midsize sedan2.4interval 1.9 to 2.9143matched incidents
How to read this: a higher complaint signal means that model year has a louder complaint record relative to its peer cohort. It does not establish overall reliability, ownership cost, or a recommendation to avoid that year.
731 published model-years · free · no login
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Browse NHTSA complaint-signal records with visible sample sizes, intervals, and limitations. The current data snapshot is dated 2026-07-19.