There are 1 owner-reported body & structure complaints for the 2004 Kia Rioin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
DRIVER SIDE DOOR LOCK DOES NOT ALWAYS WORK. WHEN LOCKED FROM INSIDE THE CAR YOU HAVE TO CRAWL OUT THE PASSENGER SIDE AND GO AROUND TO DRIVER DOOR, PUT THE KEY IN THE LOCK AND WIGGLE THE INSIDE DOOR LOCK LEVER. SOMETIMES IT TAKES MINUTES TO GET IT TO UNLOCK. IF YOU WERE TO HAVE TO EXIT THE VEHICLE QUICKLY IT WOULD NOT BE POSSIBLE. THIS HAS HAPPENED MULTIPLE TIME IN THIS CAR.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026