Problems owners report
Complaints filed with NHTSA about the 2018 Hyundai Ioniq Plug-IN Hybrid, by the system named in each complaint. One complaint can name several.
- Structure1
- Engine and engine cooling1
- Unknown or other1
- Visibility/wiper1
NHTSA ODI complaints (public domain) · updated 23 Oct 2026 · 0 injuries and 0 deaths reported
Compared with other years
NHTSA ODI complaints by model year
Recalls
22V459000 · Hybrid propulsion system28 Jun 2022 · 10,575 vehicles
Hyundai Motor America (Hyundai) is recalling certain 2017-2018 Ioniq HEV and Ionic PHV vehicles previously recalled under recall number 18V-704. The Power Relay Assembly (PRA) located underneath the rear seat may overheat.
Whether a recall was fixed on a particular car is known only to the manufacturer: check the VIN at nhtsa.gov/recalls.
NHTSA recalls · summaries in NHTSA's own words
Service bulletins
What Hyundai told its dealers about the 2018 Hyundai Ioniq Plug-IN Hybrid: known faults, fixes and updates.
| Bulletin | Summary |
|---|---|
| 10251285 | This bulletin contains information about the proper removal of the windshield wiper blade protective cover on all models. If the protective cover is not removed correctly, there is a possibility of the rubber insert and rail spring becoming partially separated on the inner side of the wiper blade, which could lead to poor wiping performance and/or possible scratching of the windshield glass. Follow the procedure in this bulletin to properly remove the windshield wiper blade protective cover on all new wiper blades. |
| 10247189 | This bulletin provides important checkpoint guidelines when performing engine oil and filter change services. |
| 10240087 | This Service Information bulletin provides information on how to update the Apple Carplay software from Hyundais Navigation Updates page. The current version of Google Maps has 10 times the data transmission compared to the previous version. As a countermeasure, an update with a frame skip logic has been added to resolve the data congestion with Google Maps. |
| 10235566 | Hyundai applies a Paint Protection Film (PPF) on new vehicles before delivery to dealerships. It provides a barrier between the paint and contaminants, such as rail dust, acid rain, and industrial fallout. In rare cases, the paint can become clouded under the PPF. These spots are the result of moisture trapped between the PPF and the paint. |
| 10230904 | This bulletin provides information regarding condensation related to the accumulated moisture in the headlamp, rear combination lamp, daytime running lamp (DRL), or fog lamp. This TSB illustrates the various causes of condensation inside the lamp assembly. Lamp assembly replacement is NOT necessary in most cases. This condition can be eliminated by turning on the lamps with the engine running for several minutes or during normal driving operation. |
| 10217258 | Effective June 2, 2008, Federal Motor Vehicle Safety Standard 110 (FMVSS 110) established a threshold for correcting load carrying capacity information indicated on tire placards when vehicle weight has been increased before retail sale. This limit is the lesser of 1.5% of GVWR or 100 pounds. If the total added weight exceeds the lesser of the limit, a label must be added to the driver-side B-pillar within 25mm (1 inch) of the original tire placard. |
| 10217251 | Follow the guidelines outlined in this bulletin to inspect and clean or replace certain components of the engine intake system accordingly during engine short block or sub-assembly replacement. |
| 10215599 | Certain vehicles may develop a bearing noise within the Motor Driven Power Steering (MDPS) column worm shaft assembly. If bearing noise is heard, follow the procedure in this bulletin to replace the worm shaft bearing. |
| 10213725 | If you are servicing an applicable model with Hybrid Drive Motor (Traction Motor) improper operation or any DTC listed in the related shop manual, Motor Control System, refer to the shop manual for diagnosis. If the diagnosis indicates a faulty hybrid drive motor, refer to the Service Procedure and replace the hybrid drive motor. |
| 10211680 | Certain vehicles may develop a bearing noise within the Motor Driven Power Steering (MDPS) column worm shaft assembly. If bearing noise is heard, follow the procedure in this bulletin to replace the worm shaft bearing. |
| 10211678 | Certain vehicles may develop a bearing noise within the Motor Driven Power Steering (MDPS) column worm shaft assembly. If bearing noise is heard, follow the procedure in this bulletin to replace the worm shaft bearing. |
| 10203272 | Certain vehicles may develop a bearing noise within the Motor Driven Power Steering (MDPS) column worm shaft assembly. If bearing noise is heard, follow the procedure in this bulletin to replace the worm shaft bearing |
| 10190044 | This bulletin provides the service procedure for engine connecting rod bearing clearance testing. Perform the procedure outlined in this bulletin to fulfill the Bearing Clearance Test inspection requirements to determine next required steps. |
| 10190038 | This bulletin provides best practice recommendations when performing brake service procedures. |
| 10190035 | This bulletin describes the procedure to install a protection cover over the In-Cable Control Box (ICCB) to protect against drops, bumps, or shock. |
| 10189989 | This bulletin provides the inspection procedure and repair guidelines for certain vehicles listed below. |
| 10185450 | This bulletin provides information related to the Engine Control Module (ECM) software logic update for DTC P0128 Coolant thermostat - Coolant temp Below thermostat regulating Temperature. There is no drivability issue with this DTC. |
| 10183963 | This bulletin describes the procedure to inspect and identify fluid which may appear around the brake caliper area. |
| 10183960 | This bulletin provides tire vibration service procedures, including how to optimize vehicle vibration performance. For all wheel/tire balance claims, the Tire Balance Data Sheet must be fully completed including imbalance and Road Force Variation (RFV) data. The Data Sheet can be found at the end of this bulletin. |
| 10180985 | Certain vehicles may develop a bearing noise within the Motor Driven Power Steering (MDPS) column worm shaft assembly. If bearing noise is heard, follow the procedure in this bulletin to replace the worm shaft assembly. |
| 10180981 | This bulletin provides information regarding replacement of the column-mounted Motor Driven Power Steering (MDPS) system as separate components. |
| 10179246 | Certain vehicles may develop a bearing noise within the Motor Driven Power Steering (MDPS) column worm shaft assembly. If bearing noise is heard, follow the procedure in this bulletin to replace the worm shaft assembly. |
| 10179244 | This bulletin provides information regarding replacement of the column-mounted Motor Driven Power Steering (MDPS) system as separate components. |
| 10178175 | This bulletin provides information regarding condensation related to moisture accumulation in the headlamp, rear combination lamp, daytime running lamp (DRL), or fog lamp. The TSB illustrates the various causes of condensation inside the lamp assembly. Lamp assembly replacement is NOT necessary in most cases. This condition can be eliminated by turning on the lamps with the engine running for several minutes, or during normal driving operation. |
| 10176182 | This bulletin provides information on tire maintenance best practices and procedures for dealers and customers to maximize tire life and performance. |
NHTSA manufacturer communications (public domain)
NHTSA investigations
DP22005 · Electrical system:propulsion systemopened 27 Jan 2023 · closed 7 Aug 2023
Pedestrian alert sounds
NHTSA Office of Defects Investigation