2018 Kia Niro Phev Problems
- Complaints
- 13filed with NHTSA
- Median mileage
- 11,000miles, 6 complaints with mileage
- Recalls
- 1campaigns on record
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
Sources: NHTSA records for the 2018 Kia Niro Phev (complaints, recalls, investigations). Report an error
NHTSA recorded 13 consumer complaints for the 2018 Kia Niro Phev. The part named most often is transmission and drivetrain, with 6 complaints (46% of the total), followed by engine (4) and electrical system (2). 6 of the complaints include a mileage, and 100% of those were filed for vehicles with under 50,000 miles; the median is 11,000 miles. Of all complaints, 1 involved a crash, according to the filers. NHTSA lists 1 recall campaign and 52 technical service bulletins for this model year. Transmission and drivetrain complaints overlap with 1 recall campaign covering the actuators/solenoids and 4 technical service bulletins filed under the same part.
This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.
Which parts are reported most
Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.
- Engine4 31%
- Electrical system2 15%
- Other or unknown2 15%
- Body and structure2 15%
- Air bags1 7.7%
- Brakes1 7.7%
Also reported: Fuel system (1), Suspension (1).
Example complaints
Transmission and drivetrain: “The transmission fails to engage immediately to the gear shifted to. When stationary and with the vehicle in reverse, if you proceed to press the accelerator and the vehicle starts to move backwards, the vehicle will continue to roll in the reverse direction even after switching the gear selector to drive and pressing the accelerator. This problem happens when switching from either drive to reverse or reverse to drive.”
NHTSA complaint #11144919, filed 2018-11, 50 milesEngine: “Vehicle randomly flashes message to check hybrid system. Warning message disappear after vehicle reset but the message has repeatedly come up very often now. Message pops up during many different scenarios: after charging, before charging, while charging, and during operation.”
NHTSA complaint #11190496, filed 2019-03, 15,000 milesElectrical system: “I received KIA letter about the recall SC276 for HCA issue around 1/15/24. I brought my 2018 Kia Niro PHEV to Kia Dealer in San Jose. They inspected and concluded that the vehicle is safe with the recall SC276. However, they did not replace the fuse as stated in Kia's recall instructions. Ten days later, I was on the road, slowing down at the intersection and the car suddenly lost power, the Dashboard show the message for 'EV System failed'. My battery was fully charged at work, which is 2 miles away. My gas tank was full and I couldn't start my car again. …”
NHTSA complaint #11572995, filed 2024-02Mileage when problems were reported
100% of the 6 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 5,000 and 24,000 miles.
Complaints by year filed
Fewer than 15 complaints, too few for a reliable trend.
Recalls and investigations
- 23V534000Jul 31, 2023Power train › Automatic transmission › Internal › Clutches/bands › Actuators/solenoidsCovers: Kia Niro Phev 2018–2022, Niro 2017–2022
Kia America, Inc. (Kia) is recalling certain 2017-2022 Niro and 2018-2022 Niro Plug-in Hybrid vehicles. Fluid may leak into the printed circuit board inside the hydraulic clutch actuator, which can result in an engine compartment fire.
Recall details for the 2018 Kia Niro Phev → · Check a VIN at nhtsa.gov/recalls
Technical service bulletins
TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 52 on record; the latest 10 are shown.
- 11036628Aug 28, 2026Visibility (wipers, defrost, mirrors), Electrical system. TECHNICAL SERVICE BULLETIN: PARTIAL REPAIR – ELECTRICAL A/C COMPRESSOR - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a…
- 11026698Dec 9, 2025Back-over prevention (rear camera). PITSTOP: TECHNICAL OPERATIONS: EXTERNAL DAMAGE TO ULTRASONIC SENSOR: This Pitstop provides information related to Parking Distance Warning (PDW) alerts and repairs involving ultrasonic sensors. The…
- 11017172Apr 17, 2025Transmission and drivetrain. TECHNICAL SERVICE BULLETIN: TRANSMISSION FLUID APPLICATION GUIDE - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black…
- 11015973Mar 20, 2025Electrical system. TECHNICAL SERVICE BULLETIN: SERVICE ACTION: KIA CONNECT MODEM RESET (SA611) - This bulletin outlines the procedure for resetting the modem in certain 2016-2025MY Kia vehicles listed on page 3 that…
- 11000787May 16, 2024Transmission and drivetrain. This bulletin provides information relating to the correct transmission fluid type and fill quantity requirement for each Kia model. A flush is required ONLY when a transmission is replaced.
- 10238225Jun 26, 2023Visibility (wipers, defrost, mirrors), Electrical system. TECHNICAL SERVICE BULLETIN: PARTIAL REPAIR - ELECTRICAL A/C COMPRESSOR - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a…
- 10237139May 31, 2023Body and structure, Interior lighting, Latches, locks and…. TECHNICAL SERVICE BULLETIN: OVERHEAD CONSOLE SUNGLASS DOOR-LATCH REPAIR - This bulletin provides information to repair the overhead console lamp assembly and sunglass door latch on some 2012-2023MY…
- 10226555Nov 18, 2022Transmission and drivetrain. TECHNICAL SERVICE BULLETIN: TRANSMISSION FLUID APPLICATION GUIDE - This bulletin provides information relating to the correct transmission fluid type and fill quantity requirement for each Kia…
- 10220346Sep 16, 2022Electrical system, Engine cooling. TECHNICAL SERVICE BULLETIN: MAINTENANCE REMINDER FEATURE - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the…
- 10212200May 19, 2022Engine cooling. PITSTOP: RANDOM MISFIRES/OVERHEATING DUE TO LOW COOLANT - This Pitstop provides information to help identify one cause of low coolant, random misfires, and/or possible overheating on some…
Other model years of the Kia Niro Phev
| Year | Complaints | Median mi | Recalls | Crash ★ | MPG | Score (50 = typical) | Trend |
|---|---|---|---|---|---|---|---|
| 2023 | 6 | 1,300 | 2 | — | — | — | Too new |
| 2022 | 12 | 14,000 | 1 | — | — | — | Not enough data |
| 2020 | 5 | 50 | 1 | — | — | — | Not enough data |
| 2019 | 26 | 3,000 | 1 | — | — | Not compared (fewer than 3 comparable model years) | Falling |
| 2018 | 13 | 11,000 | 1 | — | — | — | Not enough data |
Frequently asked questions
How many NHTSA complaints does the 2018 Kia Niro Phev have?
NHTSA recorded 13 consumer complaints for the 2018 Kia Niro Phev as of Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
What part of the 2018 Kia Niro Phev is reported most often?
Transmission and drivetrain is named most often, in 6 complaints (46% of the total), followed by engine with 4.
Has the 2018 Kia Niro Phev been recalled?
NHTSA lists 1 recall campaign for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.
At what mileage are problems with the 2018 Kia Niro Phev reported?
Among the 6 complaints that include a mileage, the median is 11,000 miles and the middle half falls between 5,000 and 24,000 miles; 100% were filed for vehicles with under 50,000 miles.
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.