2018 Hyundai Ioniq Hybrid recalls and problems

2 recalls and 13 owner complaints on file with NHTSA for the 2018 Hyundai Ioniq Hybrid.

2
recalls
13
owner complaints
2
complaints mentioning a crash
0
mentioning a fire

Recalls apply to specific production ranges. To see whether a particular car still has an open recall, enter its VIN at nhtsa.gov/recalls. Repairs for safety recalls are free at authorised dealers.

2018 Hyundai Ioniq Hybrid recalls

Hybrid propulsion system: inverter

NHTSA campaign 22V459000 · reported June 28, 2022 · Hyundai Motor America · 10,575 vehicles potentially affected

The problem
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.
The risk
An overheated PRA increases the risk of a fire.
The fix
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.

Hybrid propulsion system: inverter

NHTSA campaign 18V704000 · reported October 5, 2018 · Hyundai Motor America · 10,575 vehicles potentially affected

The problem
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.
The risk
The increased electrical resistance can overheat the rear seat which is above the PRA, increasing the risk of a fire.
The fix
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.

Most reported problems

Areas named in owner complaints to NHTSA. One complaint can name several areas.

What owners report

Recent complaints filed with NHTSA, shortened. These are unverified accounts from owners, not findings.

Nov 25, 2025 · Engine

My 2018 Hyundai Ioniq Hybrid has a safety-critical transmission defect. The vehicle slips violently from 1st to 2nd gear, loses acceleration, and causes unpredictable hesitation. This creates a danger when merging onto highways or crossing intersections. Hyundai refused goodwill assistance, denied escalation, and…

Nov 25, 2024 · Air bags · 85,000 miles · crash reported

The contact owned a 2018 Hyundai Ioniq Hybrid. The contact stated while driving 75 MPH with her aunt in the front passenger's side seat, another vehicle suddenly merged into the contact's lane, causing the passenger's side of the vehicle to crash into the driver's side of the other vehicle. The vehicle then veered…

Oct 11, 2024 · Power train

The clutch failed and the clutch and I believe the clutch actuator had to be replaced. It was not available for inspection upon request. My safety and the risk of others were compromised by the constant jerking and sputtering, of the gears that took place during vehicle operation. My acceleration was laggy and at some…

Apr 8, 2024 · Engine

The car engine started to stall, the engine light came on and advised me to shut off engine then I pulled over and smoke immidiatley filled the cabin and outside the hood. My engine could have blown up. Had I not pulled over so quickly my car would have caught fire and I would have died. Yes the Hyundai Folsom…

Aug 30, 2023 · Electrical system

My lcd screen constantly goes black. A couple times the steering wheel locked the wipers and washer fluid went off at the same time. I had to hit the brakes and power the car on and off to reset it while making a turn. When having my window motor replaced for the SECOND time my dash where the speed is at all when…

Ioniq Hybrid model years compared

YearRecallsComplaintsCrashesFires
2017 34243
2018 21320
2019 11651
2020 01731
2021 01300

Across all years, the 2017 Ioniq Hybrid has the most complaints (42). All Hyundai Ioniq Hybrid years →

Questions

Does the 2018 Hyundai Ioniq Hybrid have any recalls?
Yes. NHTSA lists 2 recalls for the 2018 Hyundai Ioniq Hybrid, the most recent reported on June 28, 2022 (Hybrid propulsion system: inverter). Check a specific car by its VIN at nhtsa.gov/recalls.
What are the most common problems with the 2018 Hyundai Ioniq Hybrid?
Owners have filed 13 complaints with NHTSA. The most frequently reported area is electrical system (3 complaints), followed by engine (3).
How many 2018 Hyundai Ioniq Hybrid complaints mention a crash or fire?
2 of 13 complaints report a crash and 0 a fire; 2 injuries were reported in total. Complaints are unverified reports from owners.

Source: NHTSA recall and complaint data, updated October 27, 2026. Latest complaint received November 25, 2025.