2018 Hyundai Ioniq Hybrid Problems

Below Average Complaints

Real NHTSA owner complaints for the 2018 Hyundai Ioniq Hybrid.

20172019
Complaints
18
Crashes
2
Fires
0
Injuries
2
Fatalities
—
Recalls
2

Worst 2018 Hyundai Ioniq Hybrid Problems

Top 3 most-reported issues with average mileage at failure.

#13 complaints

Electrical Faults

#23 complaints

Engine Problems

#33 complaints

Transmission / Drivetrain

Crash-related:1
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All Problems by Category

Every NHTSA complaint category for the 2018 Hyundai Ioniq Hybrid.

Electrical Faults
3
complaints
Crashes
—
Fires
—
Avg Miles
—
Engine Problems
3
complaints
Crashes
—
Fires
—
Avg Miles
—
Transmission / Drivetrain
3
complaints
Crashes
1
Fires
—
Avg Miles
—
Unintended Acceleration
2
complaints
Crashes
—
Fires
—
Avg Miles
—
Airbags
1
complaints
Crashes
1
Fires
—
Avg Miles
—
Brakes
1
complaints
Crashes
—
Fires
—
Avg Miles
—
Steering Defects
1
complaints
Crashes
—
Fires
—
Avg Miles
—
Wipers & Visibility
1
complaints
Crashes
—
Fires
—
Avg Miles
—

Search Owner Complaints

Read what owners actually reported to NHTSA for the 2018 Hyundai Ioniq Hybrid. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.

Recalls for 2018 Hyundai Ioniq Hybrid

2 NHTSA recall campaigns affecting ~21,150 vehicles.

22V459000Hybrid Propulsion System: Inverter
~10,575 affected

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.

18V704000Hybrid Propulsion System: Inverter
~10,575 affected

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.

Other Hyundai Ioniq Hybrid Years

201720182019202020212022

2018 Hyundai Ioniq Hybrid — FAQ

Answers based on real NHTSA complaint and recall data for this specific model year.

Is the 2018 Hyundai Ioniq Hybrid reliable?
Verdict: Below Average Complaints. The 2018 Hyundai Ioniq Hybrid has 18 NHTSA complaints, 2 crash-related, and 2 recall campaigns. The most common issue is Electrical Faults with 3 complaints. Source: NHTSA via VinItel.
What are common problems with the 2018 Hyundai Ioniq Hybrid?
Top reported problems: Electrical Faults (3 complaints); Engine Problems (3 complaints); Transmission / Drivetrain (3 complaints). Every complaint is filed by an owner with NHTSA — this is raw reported data, not editorial opinion.
How safe is the 2018 Hyundai Ioniq Hybrid?
NHTSA complaints for the 2018 Hyundai Ioniq Hybrid include 2 crash-related reports, 0 fire reports, 2 injuries, and 0 fatalities. These are owner-reported incidents, not official crash-test ratings — a complaint being filed doesn't confirm a defect, but clusters around specific components are worth investigating.
Does the 2018 Hyundai Ioniq Hybrid have any recalls?
Yes — 2 NHTSA recall campaigns affecting an estimated 21,150 vehicles. Recalls are free to fix at the dealer. Always verify by VIN whether the specific car you're looking at has had its recalls addressed.
Should I buy a 2018 Hyundai Ioniq Hybrid?
Fewer complaints than typical for this model. That's a good sign, but every individual car is different — the VIN still tells you what happened to this specific one.

Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinItel.

Wider context: See the full Hyundai Ioniq Hybrid reliability report with year-by-year comparison and generation analysis.

Check Your Specific 2018 Hyundai Ioniq Hybrid

Real owner complaints tell you about the model. The VIN tells you about your specific car — accidents, title issues, odometer fraud.

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