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2018 Hyundai Ioniq: problems, recalls and fuel economy

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Owners have filed 22 complaints about the 2018 Hyundai Ioniq with NHTSA, and it has 3 recalls. We don't rate it yet: a rating needs sales figures to turn complaints into rates.

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Owner complaints

filed with NHTSA

Recalls

on record

Fuel economy

136 MPGe

best version, EPA combined

What owners complain about most

Engine & cooling4

Electrical system3

Transmission & drivetrain3

Body, glass & interior3

Engines and fuel economy

Version	Drive	Combined
Electric, 124 mi range	Front-Wheel Drive	136 MPGe
Automatic (AM6), 4 cyl, 1.6 L	Front-Wheel Drive	58 mpg
Automatic (AM6), 4 cyl, 1.6 L	Front-Wheel Drive	55 mpg
Automatic (AM6), 4 cyl, 1.6 L	Front-Wheel Drive	52 mpg

Recalls

Hybrid Propulsion System › InverterJun 28, 2022 · campaign 22V459000
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.
Electrical System › Propulsion System › Charging › Module › Onboard (Obcm)Dec 7, 2021 · campaign 21V944000
Hyundai Motor America (Hyundai) is recalling certain 2017-2019 Ioniq electric vehicles. An unstable electrical ground may cause the vehicle to enter a fail-safe mode with reduced acceleration and power. In certain conditions while in fail-safe mode, the vehicle may accelerate after the gas pedal is released.
Hybrid Propulsion System › InverterOct 5, 2018 · campaign 18V704000
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.

Check whether a specific car still has open recalls with its VIN at nhtsa.gov/recalls.

Before you buy

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Other years of the Hyundai Ioniq

Year	Reliability
2022	Not rated yet
2021	Not rated yet
2020	Not rated yet
2019	Not rated yet
2018	Not rated yet
2017	Not rated yet

Questions people ask

What problems does the 2018 Hyundai Ioniq have?

Owners have filed 22 complaints with NHTSA: engine & cooling (4), electrical system (3), transmission & drivetrain (3). We don't rate it yet, so this count isn't a reliability score: popular cars get more complaints.

How many recalls does the 2018 Hyundai Ioniq have?

3 recalls on record with NHTSA.

What gas mileage does the 2018 Hyundai Ioniq get?

Up to 136 MPGe combined (EPA), depending on the engine.