CarModelProblems.com

2015 Kia Optima Problems & Recalls

Built from official NHTSA complaint and recall data · data through 07/12/2026

High complaint levelIts most-reported problem — Engine — runs 4.9× the fleet median for that category across the 2583 model-years tracked on this site.
998Complaints
4Recalls
31Crashes
71Fires
23Injured
1Deaths

Source: U.S. NHTSA complaint & recall data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.

Is this problem acknowledged?

The most-reported problem — Engine (61.8% of complaints) — was examined in a now-closed NHTSA investigation that did not result in a recall.

Engine complaints here are 4.9× the median for that category across the 2583 model-years tracked on this site.

1 of the 6 most-reported categories on this page are backed by a recall or open investigation; the other 5 rest on owner reports alone.

Complaint categoryReportsOfficial statusReference
Engine617 · 61.8%Investigation closedDP22003
Electrical System126 · 12.6%No official action
Structure:body75 · 7.5%No official action
Steering68 · 6.8%No official action
Service Brakes48 · 4.8%RecalledRecall 20V519000 · Recall 21V331000 · Recall 23V652000
Power Train48 · 4.8%No official action

Recalled = an NHTSA safety recall covers this category, so a free repair exists. Under investigation = NHTSA has an open probe but no recall yet. Investigation closed = NHTSA examined it and closed the probe — this is not a defect finding; where a closed probe led to a recall we name the campaign. Not available = recall or investigation data could not be confirmed for this vehicle — it is not a “no”. Categories are matched by NHTSA's top-level component. Check your VIN at nhtsa.gov/recalls.

Complaints by component

ENGINE617 · 61.8%
Unspecified / other138 · 13.8%
ELECTRICAL SYSTEM126 · 12.6%
STRUCTURE:BODY75 · 7.5%
STEERING68 · 6.8%
SERVICE BRAKES48 · 4.8%
POWER TRAIN48 · 4.8%
FUEL/PROPULSION SYSTEM44 · 4.4%
SERVICE BRAKES, HYDRAULIC40 · 4%
VEHICLE SPEED CONTROL33 · 3.3%

Percentages are the share of the 998 complaints citing each component; one complaint can cite several components. “Unspecified / other” is NHTSA’s own catch-all category — we show it rather than hide it.

Recalls — 4 campaigns

Fuel System, Gasoline:delivery:hoses, Lines/piping, And Fittings

NHTSA campaign 18V907000 · 2018 · reported 12/19/2018

A fuel leak in the presence of an ignition source can increase the risk of a fire. Recall repairs are free at authorized dealers.

PARK-IT: NO  · PARK-OUTSIDE: NO  ·  OVER-THE-AIR FIX: NO

Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip:control Unit/module

NHTSA campaign 20V519000 · 2020 · reported 08/27/2020

If the HECU short circuits, there is an increased risk of an engine compartment fire. Recall repairs are free at authorized dealers.

PARK-IT: NO  · Park outside  ·  OVER-THE-AIR FIX: NO

Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip:control Unit/module

NHTSA campaign 21V331000 · 2021 · reported 05/10/2021

An electrical short in the HECU increases the risk of a fire while parked or driving. Recall repairs are free at authorized dealers.

PARK-IT: NO  · Park outside  ·  OVER-THE-AIR FIX: NO

Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip:control Unit/module

NHTSA campaign 23V652000 · 2023 · reported 09/25/2023

An engine compartment fire while parked or driving can increase the risk of injury. Recall repairs are free at authorized dealers.

PARK-IT: NO  · Park outside  ·  OVER-THE-AIR FIX: NO

What owners report

“THE CONTACT OWNS A 2015 KIA OPTIMA. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 45 MPH, THE VEHICLE STALLED. THE CONTACT COASTED TO THE SHOULDER…”NHTSA complaint 11143999 — filed 10/30/2018 · ENGINE
“I NOTICED THAT WHILE DRIVING MY CAR IT WOULD FIRST MAKE A NOISE AND THEN RIGHT AFTER IT WOULD STALL AND SPUTTER/ JERKING LIKE IT…”NHTSA complaint 11143056 — filed 10/26/2018 · ENGINE
“RELOCATING TO LAS VEGAS AND MY ENGINE WENT OUT. THE CAR JUST STOP MOVING. I BOUGHT THIS CAR 13 MONTHS AGO AT PAUL BLANCO STOCKTON…”NHTSA complaint 11142151 — filed 10/23/2018 · ENGINE

Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.

Complaint trend by year filed

220141826201652802018147148202011319320222261812024151522026

Frequently asked questions

What are the most common problems with the 2015 Kia Optima?

Engine issues are the most-reported category, cited in 617 of 998 NHTSA complaints (61.8%), followed by unspecified/other issues (138), electrical system (126), structure:body (75). Complaints are unverified owner reports.

How many complaints does the 2015 Kia Optima have?

998 complaints were on file with NHTSA as of 07/12/2026. Of those, 31 involved a crash, 71 involved a fire, and 23 reported injuries. 1 deaths were reported.

Does the 2015 Kia Optima have any recalls?

Yes — 4 NHTSA safety recall campaigns, including campaign 18V907000. Recall repairs are free at authorized dealers. Check your specific vehicle by VIN at nhtsa.gov/recalls.

Has NHTSA acted on the 2015 Kia Optima's reported problems?

1 of the 6 most-reported complaint categories on this page is backed by an NHTSA safety recall or open investigation; the rest are unverified owner reports. A recall means a free repair is available at authorized dealers.

Is a complaint proof of a defect?

No. Complaints are reports submitted by consumers to NHTSA. NHTSA does not verify individual complaints, and a complaint is not proof that a defect exists.

About this data — Complaint figures on this page are consumer reports submitted to the National Highway Traffic Safety Administration (NHTSA), a U.S. government agency. NHTSA does not verify individual complaints; a complaint is not proof that a defect exists, and counts reflect what owners chose to report, not confirmed failure rates. Recall information comes from official NHTSA safety recall campaigns; recall repairs are free at authorized dealers. Always check your specific vehicle by VIN at nhtsa.gov/recalls. CarModelProblems.com is an independent site and is not affiliated with NHTSA or any vehicle manufacturer. Data through 07/12/2026.