Home · 2020 Kia Optima · Complaints
These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.
4 of 136 complaints match · Seat belts · clear filters
Stable track control failed to work, the driver seatbelt did not tighten & stayed loose, & air bags did not deploy upon hitting the ditch & small trees resulting after hitting ice/water upon coming to a stop sign at a “T” cross road.
NHTSA ODI 11715952
The contact owns a 2020 Kia Optima. The contact received notification of New Vehicle Limited Warranty Extension (Illumination of Air Bag Warning Light); however, the part to do the repair was not yet available. The contact stated that while starting the vehicle, the air bag warning light illuminated. The seat belt alarm chimed while the front driver seat belt was buckled. The dealer was made aware of the failure but confirmed that parts were not yet available. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was opened. The failure mileage was approximately 42,860.
NHTSA ODI 11622702
UNKNOWN But the passenger side seat belt start chumming on its on and won't stop until I connect the seat belt
NHTSA ODI 11454052
The passager side seat belt goes off by itself
NHTSA ODI 11453073
Working with the data? Download all 136 complaints as CSV · fetched from NHTSA July 19, 2026