HYUNDAI SONATA vs KIA OPTIMA

Top reported components for each, summed across every model year on file - not matched to the same exact year on both sides.

These are raw complaint counts, not rates. A model covered across more years, or with higher sales volume, will tend to show more total complaints here regardless of which one actually has a higher true incidence of any given problem. This page is a starting point for what to ask about or inspect, not a verdict on which is more reliable.

HYUNDAI SONATA

2008-2021 on file

  1. 1.Engine Internal1,321
  2. 2.Engine Stall Or No Start1,297
  3. 3.Airbag System685
  4. 4.Engine Oil Consumption682
  5. 5.Lighting Exterior565
  6. 6.Steering Electric Assist482
  7. 7.Steering Column410
  8. 8.Steering Rack Mechanical381
  9. 9.Alignment And Pull313
  10. 10.Other306

KIA OPTIMA

2008-2020 on file

  1. 1.Engine Internal1,017
  2. 2.Engine Stall Or No Start953
  3. 3.Engine Oil Consumption466
  4. 4.Paint And Clearcoat303
  5. 5.Airbag System262
  6. 6.Lighting Exterior206
  7. 7.Steering Electric Assist192
  8. 8.Other185
  9. 9.Steering Rack Mechanical139
  10. 10.Transmission Automatic116

For a single model year's full breakdown - mileage ranges, severity, and real owner quotes - open either vehicle's own page above and pick a year.