2018 Hyundai Ioniq Plug-In Hybrid Recalls, Complaints & Specs
1 safety recall lists the 2018 Hyundai Ioniq Plug-In Hybrid, and owners have filed 4 complaints with NHTSA. Check your own VIN below.
1 safety recall for the 2018 Hyundai Ioniq Plug-In Hybrid
Most recent first. Recall repairs are free at any authorised dealer. Click a recall for the full defect, consequence and remedy text.
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Inverter (hybrid propulsion system)
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.
Remedy: Dealers will inspect and replace the main relay or PRA, as necessary, free of charge. Owner notification letters were mailed August 23, 2022. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's…
4 owner complaints filed with NHTSA
Owners of the 2018 Hyundai Ioniq Plug-In Hybrid have filed 4 complaints with NHTSA. The average mileage at failure in those reports is 12,000 miles. Complaints peaked in 2022 with 2 filed that year.
Most-reported components
What owners are reporting
“I am writing to dispute the denial of my paint defect warranty claim formally and to demand that Hyundai Motor America reconsider its decision. My 2018 Hyundai Ioniq (Silver, VIN: [XXX] ) is exhibitin”
Owner complaint to NHTSA, May 13, 2026 · Unknown or other
“The contact owns a 2018 Hyundai Ioniq Hybrid. The contact stated that upon inspection, it was discovered that both the passenger’s side front and rear carpets had become soaked with water and condensa”
Owner complaint to NHTSA, July 5, 2022 · Structure
Fuel economy and specs
EPA ratings for the 2018 Hyundai Ioniq (Ioniq Blue, Ioniq Electric, Ioniq Plug-in Hybrid). Ranges cover every tested configuration.
| Combined | 52–136 MPGe |
|---|---|
| City / Highway | 53–150 / 52–122 |
| Fuel | Electricity, Regular, Regular Gas and Electricity |
| EPA class | Large Cars, Midsize Cars |
| Engine | 4 cyl, 1.6 L |
| Transmission | Automatic (A1); Automatic (AM6) |
Compare Hyundai Ioniq Plug-In Hybrid model years
Recall and complaint counts for every Hyundai Ioniq Plug-In Hybrid model year in NHTSA's database.
| Model year | Recalls | Complaints |
|---|---|---|
| 2017 Hyundai Ioniq Plug-In Hybrid | 1 | 0 |
| 2018 Hyundai Ioniq Plug-In Hybrid | 1 | 4 |
| 2019 Hyundai Ioniq Plug-In Hybrid | 0 | 10 |
| 2020 Hyundai Ioniq Plug-In Hybrid | 0 | 5 |
| 2021 Hyundai Ioniq Plug-In Hybrid | 0 | 5 |
| 2022 Hyundai Ioniq Plug-In Hybrid | 0 | 3 |
Checking a specific 2018 Hyundai Ioniq Plug-In Hybrid
How do I know if my 2018 Hyundai Ioniq Plug-In Hybrid has an open recall?
Enter your 17-character VIN above. The VIN is on the driver's side dashboard (visible through the windshield), the driver's door jamb sticker, and your registration or insurance card. The check runs against NHTSA's live database and tells you which campaigns list your vehicle. 1 campaign currently lists the 2018 Hyundai Ioniq Plug-In Hybrid; your car may already have been repaired under it.
Is the recall repair free?
Yes. Under federal law, manufacturers must fix safety recalls at no charge for vehicles up to 15 years old from the date of sale to the first owner. Contact any authorised Hyundai dealer with your VIN and the NHTSA campaign number (for example 22V459000).
What is the difference between a recall and a complaint?
A recall is a safety campaign filed by the manufacturer or ordered by NHTSA, with a defined defect and remedy. A complaint is a report an owner sent to NHTSA; it is not verified, but patterns of complaints are what trigger NHTSA investigations and, eventually, recalls.
Other Hyundai models
- Sonata16,085 complaints
- Elantra8,715 complaints
- Santa FE7,663 complaints
- Tucson6,287 complaints
- Palisade2,447 complaints
- Accent2,032 complaints
- Ioniq 51,339 complaints
- Veloster1,292 complaints
Source: NHTSA recall and complaint databases and EPA fuel economy data, October 2026. Complaint counts are owner reports to NHTSA, not verified defects. Recall counts are safety campaigns that list this model year; whether a particular car was already repaired depends on its VIN. How this data is compiled.