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2018 Hyundai Ioniq Hybrid recalls and problems

The 2018 Hyundai Ioniq Hybrid has 2 safety recalls and 14 owner complaints filed with NHTSA. Recall repairs are free at any Hyundai dealer.

Recalls
2
Complaints
14
Crashes / fires
2 / 0
Injuries / deaths
2 / 0

Recalls may cover only some 2018 Hyundai Ioniq Hybrid vehicles. Check your VIN at NHTSA ↗ to see open recalls for your exact car.

2018 Hyundai Ioniq Hybrid recalls

Recall 22V-459: Hybrid Propulsion System

Reported Jun 28, 2022 · 10,575 vehicles affected · Hyundai Motor America

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.

Risk: An overheated PRA increases the risk of a fire.

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.

Recall 18V-704: Hybrid Propulsion System

Reported Oct 5, 2018 · 10,575 vehicles affected · Hyundai Motor America

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.

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

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.

2018 Hyundai Ioniq Hybrid problems reported by owners

Problem areaReports
Unknown or Other3
Electrical System3
Engine3
Power Train3
Vehicle Speed Control2
Service Brakes2
Forward Collision Avoidance2
Steering1
Visibility/Wiper1
Air Bags1

Most reported parts

  • Forward Collision Avoidance › Adaptive Cruise Control — 1
  • Forward Collision Avoidance › Warnings — 1

Typical mileage at the time of the problem: 3,000 miles (median of owner reports).

Problems that are not covered by a recall are paid repairs; labor rates follow local mechanic pay — see what auto mechanics earn in each state.

Recent 2018 Hyundai Ioniq Hybrid complaints

Owner reports filed with NHTSA, as written (personal details removed). Complaints are not verified by NHTSA.

Service Brakes · reported Oct 31, 2026
I am reporting a potentially serious braking system safety defect involving a 2018 Hyundai Ioniq Hybrid with approximately 72,000 miles. The vehicle has experienced recurring, intermittent ABS warning lights that illuminate unexpectedly and then disappear without a predictable pattern. In addition to the warning lights, the brake pedal intermittently pulsates, vibrates, and pushes back against the driver's foot during normal braking on dry pavement. These symptoms occur under conditions where ABS activation would not ordinarily be expected, raising concerns about the reliability and proper…
Engine · reported Nov 25, 2025
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 directed me to BBB Auto Line, but BBB does not accept 2018 vehicles. This defect matches known DCT failures in Hyundai hybrid models and presents a significant safety risk, especially when transporting my two young children ( we lost mother during the childbirth .
Air Bags · at 85,000 miles · reported Nov 25, 2024
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 into a ditch on the right side of the road. The air bags failed to deploy. There was no warning light illuminated. The contact and her aunt exited the vehicle through the rear doors because the front doors were blocked by the bushes. The contact sustained pain in the right knee and…
Power Train · reported Oct 11, 2024
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 points nearly unresponsive. The vehicle was inspected by service technicians. A warning light saying: Warning please check Hybrid Driving System, Do not drive vehicle was illuminated. Mid to late October 2023
Engine · reported Apr 8, 2024
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 inspected the car and listed issue was a hole in the engine block. They stated it was caused by premature wearing of the rod bearings and refused to repair. The ONLY warning happened within seconds of the car stalling and failing to accelerate before I pulled over. The first symptoms was…

Other Hyundai Ioniq Hybrid years

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Compare all Hyundai Ioniq Hybrid years · All Hyundai models

Frequently asked questions

Does the 2018 Hyundai Ioniq Hybrid have any recalls?

Yes — NHTSA lists 2 recalls for the 2018 Hyundai Ioniq Hybrid: 22V-459 (hybrid propulsion system), 18V-704 (hybrid propulsion system). Not every vehicle is affected, so check your VIN at nhtsa.gov/recalls.

What is the most common problem with the 2018 Hyundai Ioniq Hybrid?

Owners report unknown or other problems most often (3 reports), followed by electrical system (3). The typical mileage when problems were reported is about 3,000 miles.

Are Hyundai recall repairs free?

Yes. Safety recall repairs are free at authorized Hyundai dealers, whether you are the first owner or bought the car used.