Vehicle report
2004 KIA RIO
This model year
What the record shows
The 2004 Kia Rio is a compact car, and the 5th model year of a nameplate NHTSA records from 2000 to 2023.
The EPA rated four configurations: a single 1.6-litre four-cylinder engine, front-wheel drive only, two transmissions and running on regular gasoline.
Combined fuel economy ranges from 24 to 26 mpg depending on which one you have.
The federal record holds 38 owner complaints and 12 service bulletins for it.
Counts are reports, not rates. A complaint is something an owner chose to file; it is unverified and unadjusted for how many of these cars were sold, so the useful comparison is against other model years of the same car. Recalls and investigations carry more weight because a manufacturer or regulator acted on them.
Reading this report
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.