YearToAvoid

2015 Kia Rio Reliability Data: Problems & Recalls

Avoid The 2015 Kia Rio has a Complaint Index of 89, ranking 3rd worst among 19 model years, and carries an Avoid verdict. Engine problems dominate, making up 56% of its 52 complaints, with 8 of those tied to fires.

Based on NHTSA complaints per model-year, not a reliability rating. Methodology

YearToAvoid Scorecard

Complaint Index
89/100
#3 of 19 Rio years
Verdict
Avoid
vs. other years of this model
Complaints
52
unique NHTSA reports
Recalls
1
1 Park Outside
Crashes
4
reported in complaints
Fires
10
Injuries
11
Top issue
Engine
Best nearby year
2018
rated Best
NHTSA overall rating
4 / 5 ★
EPA combined MPG
30
27 city / 36 hwy
Injuries / deaths
11 / 0

Top 2015 Kia Rio problems

Share of this year’s NHTSA complaints by component group. Groups with 15+ complaints have their own page.

  1. Engine29 (56%)
  2. Brakes12 (23%)
  3. Electrical System9 (17%)
  4. Airbags5 (10%)
  5. Other4 (8%)
  6. Fuel System2 (4%)
  7. Seat Belts2 (4%)
  8. Structure & Body2 (4%)
  9. Steering1 (2%)
  10. Suspension, Wheels & Tires1 (2%)

A complaint can list more than one component, so shares add up to more than 100%. Shares are % of complaints.

What owners report

  • Owners report the engine losing power suddenly while driving, sometimes with a loud grinding or popping noise before smoke appears.
  • Several complaints describe engine compartment fires starting with little or no warning, in some cases preceded by a knock sensor error.
  • Some drivers say the brakes failed to stop the vehicle even when the pedal was pressed to the floor, forcing use of the emergency brake.
  • Multiple owners report airbags failing to deploy in frontal or side-impact crashes, including a head-on collision and a semi-truck impact.
  • Electrical failures are described alongside loss of acceleration and brake response, with smoke or fire coming from under the hood.
2015 Kia Rio complaints: complaints filed per month4Jan 2015Sep 2017Jan 2019Jul 2019Jun 2021Jul 2023Mar 2024Jan 2025
52 complaints filed with NHTSA from Jan 2015 to Sep 2025; peak Jun 2019 (4).

2015 Kia Rio recalls

1 NHTSA recall campaign list this model year.

  1. NHTSA 23V652000Sep 25, 2023Brakes1,730,192 vehiclesPark Outside

    Service brakes, hydraulic:antilock/traction control/electronic limited slip:control unit/module

    Kia America, Inc. (Kia) is recalling certain 2010-2019 Borrego, 2014-2016 Cadenza, 2010-2013 Forte, Forte Koup, Sportage, 2015-2018 K900, 2011-2015 Optima, 2011-2013 Optima Hybrid, Soul, 2012-2017 Rio, 2011-2014 Sorento, and 2010-2011 Rondo vehicles. The Hydraulic Electronic Control Unit (HECU) may experience an electrical short, which can result in an engine compartment fire while parked or driving.

    Risk: An engine compartment fire while parked or driving can increase the risk of injury.

    Remedy: Owners are advised to park outside and away from structures until the recall repair is complete. Dealers will replace the HECU fuse, free of charge. Interim notification letters, notifying owners of the safety risk, were mailed November 14, 2023. Owner notification letters were mailed March 29, 2024 through June 18, 2024. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC284.

2015 Kia Rio fuel economy and fuel cost

City
27 MPG
Highway
36 MPG
Combined
30 MPG
Annual fuel cost (EPA)
$2,150
15,000 mi/yr
Fuel
Regular
Current regular gas
$4.32/gal
national avg.

EPA figures; median across configurations of this model year. Estimate your own cost with the fuel cost calculator.

2015 compared with other Rio years

Complaint Index by model year (0 = fewest issues, 100 = most)0255075100’05’06’07’08’09’10’11’12’13’14’15’16’17’18’19’20’21’22’23
Complaint Index: 0 = fewest issues, 100 = most, relative to other years of this model. Avoid Caution Good Best
YearVerdictIndexComplaintsRecallsMPG
2013Avoid100153132
2014Caution6152130
2015Avoid8952130
2016Avoid8377231
2017Caution3931231

All Kia Rio years: best and worst →

Frequently asked questions

Is the 2015 Kia Rio reliable?
It ranks 3rd worst out of 19 model years for the Rio, with a Complaint Index of 89 and an Avoid verdict based on NHTSA owner complaints and recalls.
What is the biggest problem with the 2015 Kia Rio?
Engine problems account for 56% of complaints (29 of 52), including reports of fires, with a median failure mileage of 79,553 miles.
Does the 2015 Kia Rio have any recalls?
NHTSA lists one recall for the 2015 Rio, a brake-related campaign that advises owners to park outside away from structures until repaired.
How does the 2015 Rio compare to other Rio years?
Its Complaint Index of 89 is worse than most other years; only 2013 (100) and 2020 (94) score higher, while years like 2021, 2022, and 2023 earn a Best verdict.
What is the fuel economy of the 2015 Kia Rio?
The EPA rates it at 30 mpg combined (27 city / 36 highway), with an estimated annual fuel cost of $2,150.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.