2018 Hyundai IONIQ: common problems and reliability
One of the better IONIQ years.
The best Hyundai IONIQ year. All IONIQ years
17 owner complaints, most about engine. 2 recalls.
Should I buy a 2018 IONIQ?The 2018 Hyundai IONIQ has 17 owner-filed NHTSA complaints and 2 recalls on record. The most-reported areas are engine and power train.
Safety record for the 2018 model year
Source: NHTSA complaints and recalls filed for 2018 Hyundai IONIQ vehicles (US, public record).
The Year Score compares this year with other IONIQ years only. How we score it
Is 2018 a good year for the IONIQ?
Across the 6 IONIQ model years we track, complaint volume runs from 17 (2018) to 51 (2017). With 17 complaints, the 2018 IONIQ sits below the model's median of 32.
These are raw NHTSA complaint totals, not adjusted for how many cars sold or how long each model year has been on the road. Older and higher-selling years accumulate more complaints.
Where owners report problems
Recalls affecting the 2018 IONIQ
hybrid propulsion system: inverter
Campaign 18V704000Hyundai 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.
hybrid propulsion system: inverter
Campaign 22V459000Hyundai 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.
What owners say across generations
Sentiment varies significantly by model line. For the original IONIQ (Hybrid/PHEV/Electric), feedback is consistently positive, praising it as an underappreciated, efficient, and practical commuter car with low maintenance costs and good value.
Owner insights cover all generations of the IONIQ. See the full IONIQ owner picture and every model year.
Other IONIQ model years
Compare every IONIQ year side by side to see how 2018 ranks against the rest.
Compare the IONIQ against its rivals
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