KIA RIO Engine and Engine Cooling Problems

Source: NHTSA · Updated Oct 5, 2026 · 158 complaints analyzed

Owners have filed 158 complaints with NHTSA about engine and engine cooling problems on the KIA RIO across 15 model years. The 2001 model year has the most (52). The words owners use most often: “timing belt” (12% of reports).

What owners describe

Phrases that appear unusually often in these complaints compared with complaints about other cars.

  • Timing belt: mentioned in 19 of 158 complaints (12%)
  • Engine check: mentioned in 8 of 158 complaints (5%)

At what mileage do engine and engine cooling problems happen?

Based on 90 complaints that reported the odometer reading.

Under 10k miles21 · 23%
10k–25k miles9 · 10%
25k–50k miles13 · 14%
50k–75k miles21 · 23%
75k–100k miles13 · 14%
100k–150k miles12 · 13%
150k+ miles1 · 1%

How serious are the reports?

Of 158 complaints, 4 mention a crash, 12 a fire.

KIA RIO engine and engine cooling complaints by model year

Peak: 2001, with 52 complaints
2000: 1200012001: 52522002: 392002392003: 19192004: 122004122005: 12122006: 6200662007: 222008: 2200822009: 112012: 1201212013: 332015: 4201542016: 332018: 120181

n = 158 complaints · Source: NHTSA

Model yearEngine and Engine Cooling complaintsShare of that yearMedian miles
2018 RIO14%110,000
2016 RIO34%110,000
2015 RIO48%79,553
2013 RIO32%2,700
2012 RIO12%180,000
2009 RIO13%32,000
2008 RIO24%69,200
2007 RIO24%44,800
2006 RIO68%36,000
2005 RIO1232%45,000
2004 RIO1232%53,015
2003 RIO1926%9,631
2002 RIO3930%78,780
2001 RIO5223%49,145
2000 RIO133%19,000

When owners reported it

Peak: 2003, with 25 complaints
2000: 1200012001: 332002: 192002192003: 25252004: 242004242005: 14142006: 182006182007: 10102008: 7200872009: 882010: 112010112011: 442012: 3201232014: 112018: 1201812022: 222023: 1202312024: 222025: 420254

n = 158 complaints · Source: NHTSA

Related recalls (0)

No safety recall lists engine and engine cooling for the KIA RIO. A pattern of complaints does not always lead to a recall.

What owners report

Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.

The contact owns a 2016 Kia Rio. The contact stated that while inspecting the vehicle, it was discovered that there was no oil on the dipstick. The vehicle was taken to the local dealer, who was unable to determine the cause of the failure. An oil consumption test was performed; however, the…

Received Sep 29, 2025 · NHTSA complaint 11690274

The contact owns a 2016 Kia Rio. The contact stated that upon driving from a complete stop, the vehicle failed to exceed 2-3 MPH. There was no warning light illuminated. The contact was able to drive to the residence. The Ford dealer where the vehicle was purchased arranged for the vehicle to be…

Received Sep 24, 2025 · NHTSA complaint 11689368

The contact owned a 2018 Kia Rio. The contact stated that while driving on the highway at 85 MPH, the engine emitted abnormal noise with no warning lights illuminated. The contact proceeded to exit the highway and enter a gas station parking lot, and upon exiting the vehicle, it was apparent that…

Received Apr 4, 2025 · NHTSA complaint 11652874

The contact owns a 2015 Kia Rio. The contact received notification of NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The…

Received Jan 30, 2025 · NHTSA complaint 11639547

The contact owned a 2015 Kia Rio. The contact stated that while the friend was driving approximately 70 MPH, the vehicle suddenly began to lose automotive power, and smoke was seen coming from under the hood. The vehicle was parked and the friend exited the vehicle and discovered flames coming from…

Received Aug 13, 2024 · NHTSA complaint 11608150
KIA RIO
2017 Kia Rio (YB) S 5-door hatchback. Photographed in Fremantle, Western Australia , Australia.. Representative photo; appearance varies by model year. Photo: EurovisionNim, CC BY-SA 4.0, via Wikimedia Commons.

Frequently asked questions

Do all KIA RIOs have engine and engine cooling problems?

No. NHTSA has 158 owner complaints about engine and engine cooling for the KIA RIO. Complaint data shows that the problem is reported, not how many of all cars sold are affected.

Was there a recall on the KIA RIO engine and engine cooling?

No recall currently lists engine and engine cooling for this vehicle.

What do owners say about engine and engine cooling problems on the KIA RIO?

The most frequent phrase is “timing belt”, in 19 of 158 complaints, followed by “engine check” (8).

Other KIA RIO problems

See all KIA RIO problems.