2018 Hyundai Ioniq Hybrid
Only 13 complaints on file — too few for a fair verdict.
This verdict reflects complaint volume compared to this model's typical year. Recalls and safety issues below apply regardless of the verdict — always check them.
Only 13 complaints on file — too few for a fair verdict. The data below is complete but unranked.
COMPLAINTS PER YEAR
View as data table
| Year | Complaints |
|---|---|
| 2017 | 39 |
| 2018 | 13 |
| 2019 | 16 |
| 2020 | 17 |
| 2021 | 13 |
| 2022 | 21 |
KNOWN PROBLEM AREAS
Only 13 complaints on file for this model year -- too few to rank by share. Raw counts only, below.
3 of 13 total reports mention: power train.
CRASHShow complaint excerpts
THE CAR SHIFTS FROM DRIVE MODE INTO SPORT MODE BY ITSELF WITHOUT THE DRIVER MANUALLY MOVING THE GEAR SHIFT FROM DRIVE TO SPORT. THIS HAPPENS RANDOMLY, BUT ALWAYS WHEN THE CAR IS IN MOTION AND ALWAYS IN A LOW GEAR( USUALLY FIRST GEAR ).
NHTSA ODI report, 20190517
The clutch failed and the clutch and I believe the clutch actuator had to be replaced. It was not available for inspection upon request.
NHTSA ODI report, 20241011
3 of 13 total reports mention: engine.
Show complaint excerpts
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.
NHTSA ODI report, 20240408
3 of 13 total reports mention: electrical system.
2 of 13 total reports mention: vehicle speed control.
Show complaint excerpts
WHILE DRIVING THIS MORNING (SMART CRUISE CONTROL DISABLED BY THE WEATHER), I SET THE CRUISE CONTROL AND EVERYTHING WAS WORKING OK. I CANCELLED DUE TO TRAFFIC AND REENGAGED WITHOUT ISSUE.
NHTSA ODI report, 20180619
I AM VERY CONCERNED ABOUT THE CRUISE CONTROL. WHILE DRIVING THIS MORNING (SMART CRUISE CONTROL DISABLED BY THE WEATHER), I SET THE CRUISE CONTROL AND EVERYTHING WAS WORKING OK. I CANCELLED DUE TO TRAFFIC AND REENGAGED WITHOUT ISSUE.
NHTSA ODI report, 20180130
1 of 13 total reports mentions: visibility/wiper.
SAFETY TIMELINE
Hyundai Motor America (Hyundai) is recalling certain 2017-2018 Hyundai Ioniq Hybrid and 2018 Ioniq Plug-In Hybrid vehicles.
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.
Campaign 18V704000 — check if this car was fixed
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 number for this recall is 232.
Campaign 22V459000 — check if this car was fixed
Pedestrian alert sounds
BUY-SMART CHECKLIST
2018 Hyundai Ioniq Hybrid — pre-purchase inspection
- Test/inspect for power train issues (3 reports on file for this year).
- Test/inspect for engine issues (3 reports on file for this year).
- Test/inspect for electrical system issues (3 reports on file for this year).
- Verify recall 18V704000 (hybrid propulsion system) has been completed.
- Verify recall 22V459000 (hybrid propulsion system) has been completed.
FAQ
Is the 2018 Hyundai Ioniq Hybrid reliable?
There isn't enough NHTSA complaint data on file yet to give this model year a verdict.
What are the most common problems with the 2018 Hyundai Ioniq Hybrid?
The most-reported component is power train, accounting for 23% of complaints on file.
How many recalls does the 2018 Hyundai Ioniq Hybrid have?
2 recalls on file for this model year.
Data updated 2026-07-11 · Complaints are unverified owner reports filed with NHTSA, not independently verified defects. Methodology.