Recalls (2)
NHTSA lists 2 recall campaigns for the 2018 Hyundai Ioniq Hybrid. Check whether yours was repaired with NHTSA's free VIN lookup ↗
Only NHTSA and your automaker know whether your specific car was repaired. PlainVIN shows every recall campaign listed for a model year, with the official text and how many cars have been fixed so far.
Check on NHTSA ↗Power Relay Under Rear Seat May Cause Fire
- Summary
- 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.
- Consequence
- An overheated PRA increases the risk of a fire.
- 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 number for this recall is 232. This recall replaces NHTSA recall number 18V-704. Vehicles already repaired under the previous recall will need to have the new remedy completed.
Electrical Resistance at Main Relay May Cause Fire
- Summary
- Hyundai Motor America (Hyundai) is recalling certain 2017-2018 Hyundai Ioniq Hybrid and 2018 Ioniq Plug-In Hybrid vehicles. The Main Relay within the Power Relay Assembly (PRA) may have inadequate connections between its contacts, causing increased electrical resistance.
- Consequence
- The increased electrical resistance can overheat the rear seat which is above the PRA, increasing the risk of a fire.
- Remedy
- Hyundai will notify owners, and dealers will inspect the Power Relay Assembly (PRA) for damage. If no damage is found, the main relay will be replaced. If damage is found, the PRA will be replaced. These repairs will be performed free of charge. The recall began February 28, 2019. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 178.
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Owner complaints (13)
13 complaints filed with NHTSA (owner reports, not verified findings). The electrical system is mentioned most often.
As reported by owners in their complaints. These are reports, not NHTSA findings.
Most-reported components
| Component | Complaints | % of 13 |
|---|---|---|
| Electrical system | 3 | 23.1% |
| Engine | 3 | 23.1% |
| Power train | 3 | 23.1% |
| Unknown or other | 3 | 23.1% |
| Vehicle speed control | 2 | 15.4% |
| Air bags | 1 | 7.7% |
| Service brakes | 1 | 7.7% |
| Steering | 1 | 7.7% |
| Visibility/wiper | 1 | 7.7% |
How 2018 compares with other Ioniq Hybrid years
Best and worst Ioniq Hybrid years →| Model year | Complaints | Recall campaigns |
|---|---|---|
| 2017 | 42 | 3 |
| 2018 | 13 | 2 |
| 2019 | 16 | 1 |
| 2020 | 17 | 0 |
| 2021 | 13 | 0 |
| 2022 | 24 | 0 |
Counts are owner reports, not failure rates. Higher sales years tend to draw more reports. Owners are still filing reports for recent model years, so these counts will grow. Source: NHTSA ODI, retrieved Oct 6, 2026.
Looking at a 2018 Ioniq Hybrid for sale?
Print a one-page buyer's checklist: each recall campaign with a box to tick when the seller shows proof of repair, the top complaint areas to inspect, crash stars, MPG, and a link back to this page.
Where to next
2018 Hyundai Ioniq Hybrid FAQ
How many recalls does the 2018 Hyundai Ioniq Hybrid have?
NHTSA lists 2 recall campaigns: 22V459000 (hybrid propulsion system), 18V704000 (hybrid propulsion system). Use NHTSA's VIN lookup to see whether a specific car was repaired.
What are the most common 2018 Hyundai Ioniq Hybrid problems?
Owners filed 13 complaints with NHTSA. Electrical system (3), Engine (3), Power train (3) are mentioned most. These are owner reports, not verified findings.
How does the 2018 Ioniq Hybrid compare with other years?
Among the 2017–2021 Hyundai Ioniq Hybrid model years at least five years old, the 2018 drew the fewest complaints (13) and the 2017 the most (42). The 2018 drew 13. Counts are owner reports, not failure rates.
How this page was madeSources, processing, limits, review and changes
Data sources
- NHTSA recalls by vehicle
Retrieved Oct 6, 2026 - US DOT recall completion rates (data.transportation.gov)
Retrieved Oct 6, 2026 - NHTSA ODI owner complaints
Retrieved Oct 6, 2026 - NHTSA NCAP 5-Star Safety Ratings
Retrieved Oct 6, 2026 - EPA fuel economy data (licence confirmation pending)
Retrieved Oct 6, 2026 - EIA weekly retail gasoline prices
Weekly, all taxes included
Processing
- Complaints are counted per component. One complaint can list several, so component totals add up to more than the total.
- Fuel cost = miles per year ÷ EPA combined mpg × EIA weekly price for your region.
Limitations
- Complaint counts are owner reports, not verified findings or failure rates. There is no sales denominator.
- Recall campaigns are listed for the model year. Only NHTSA and the automaker know whether a specific car was repaired.
- Recent model years are still collecting reports.
Review
Data compiled automatically from the official files listed here.
Changelog
- 2026-10-06 Data refreshed from the official files.