2018 Kia RIOProblems, recalls & complaints

NHTSA has logged 28 owner complaints about the 2018 Kia RIO, most often about the engine. It is covered by 1 safety recall, and for recall 21V-622 the manufacturer reports only 43% of affected cars repaired.

2018 Kia RIO

Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through August 5, 2026. Updated daily. Photo: Kevauto, CC BY-SA 4.0.

Complaints by system

Where the 2018 Kia RIO has problems

28 complaints grouped by the system owners reported.

Box size = number of complaints naming that system. Darker = larger share. One complaint can name more than one system.
Complaints by system
SystemComplaintsCrash, fire or injury
Engine152
Electrical system50
Air bags51
Exterior lighting20
Fuel/propulsion system22
Latches/locks/linkages20
Power train11
Seats10
Service brakes11
3 other systems31

Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.

1 recall

2018 Kia RIO recalls and how many were fixed

Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.

43%repaired · 2024 Q3

Trunk lid: latch

Recall 21V-622 · Aug 9, 2021 · 253,074 vehicles · 109,889 repaired

Risk. A person inside the trunk compartment may become trapped, increasing their risk of injury.

Problem, fix and repair progress →

Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Kia.

Best & worst years

2018 vs. every other RIO year

Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the RIO median. How we score

'01'02'03'04'05'06'07'08'09'10'11'12'13'14'15'16'17'18'19'20'21'22'23
  • Avoid
  • Caution
  • Solid
  • Best
  • Not rated
NHTSA crash tests

2018 Kia RIO safety ratings

2018 Kia Rio 4 DR FWD in NHTSA's New Car Assessment Program. Photos are from NHTSA's crash tests.

  • Stability control: Standard
  • Forward collision warning: No
  • Lane departure warning: Optional
In owners' words

What RIO owners report

Recent engine complaints filed with NHTSA, shortened. Personal details are removed.

The Components that have malfunctioned are the airbags, exaust system, electrical systems, sensors, gaskets, and a few other things. We had 5 failed clockspring repairs. The first (3?) under warranty, we paid for another when they said it was our fault, then that mechanic said that it needed to go…
Complaint 11755104 · Aug 5, 2026
Vehicle has excessive oil consumption defect acknowledged in Kia TSB ENG222. Repeated catalytic converter failures indicate potential overheating risk similar to 2019 Gamma engine recall for fire hazard. Engine burning oil creates risk of critically low oil levels leading to engine failure/stalling…
Complaint 11739727 · May 23, 2026
The first problem part is the airbag. The clockspring was fixed twice under warranty. Then the dealership said they wont keep doing it and blamed me wrongly. I had a private mechanic repair the same part twice due to the code it was giving but it turns out thats not what's wrong with it. The entire…
Complaint 11727159 · Mar 26, 2026

Own a 2018 RIO?

Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.