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Hyundai Ioniq HybridModel year report

2018 Hyundai Ioniq Hybrid Problems

Complaints
13filed with NHTSA
Median mileage
2,000miles, 8 complaints with mileage
Recalls
2campaigns on record
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

Sources: NHTSA records for the 2018 Hyundai Ioniq Hybrid (complaints, recalls, investigations). Report an error

NHTSA recorded 13 consumer complaints for the 2018 Hyundai Ioniq Hybrid. The part named most often is electrical system, with 3 complaints (23% of the total), followed by engine (3) and other or unknown (3). 8 of the complaints include a mileage, and 88% of those were filed for vehicles with under 50,000 miles; the median is 2,000 miles. Of all complaints, 2 involved a crash, 2 an injury, according to the filers. NHTSA lists 2 recall campaigns and 70 technical service bulletins for this model year. Electrical system complaints overlap with 24 technical service bulletins filed under the same part. Engine complaints overlap with 5 technical service bulletins filed under the same part.

This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.

Which parts are reported most

Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.

Example complaints

Electrical system: “Many issues: 1. Gets stuck in park. 2. Back up camera fuzzy even after cleaned. 3. Apple car play drops out. And or switches from to current phone call. 4. Tire pressure system is messed up. The tires system doesn't tell you when the tires are below 30lbs. These are just a few issues.”

NHTSA complaint #11153450, filed 2018-11, 1,000 miles

Engine: “It began shortly after I purchased the car in feb 2018 with the A/C working only intermittently and the settings on the cluster having the same problem, and this electrical problem escalated into a safety issue when on dec 6 the rke failed (battery on fob strong) and a re-start on car did not work, until the spare key was tried. Since dealer found no problem with either key, the safety issue remains a major concern for the senior citizen owner who might get caught again without access to the car and with a non-functioning engine. …”

NHTSA complaint #11166040, filed 2019-01, 4,300 miles

Other or unknown: “Clicking noise coming from the bottom of the engine every time the brake pedal is depressed. Sometimes the clicking noise will continue after the car has been parked and locked. The first time the clicking started, I parked my car and a warning check brake system appeared briefly in my dashboard display but the clicking persisted. The pedal felt sluggish with not much resistance.”

NHTSA complaint #11141250, filed 2018-10, 3,000 miles

Transmission and drivetrain: “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 ). It has happened both when making a turn and going straight ahead , usually when the car starts to move after being stopped like at a traffic light. I can get the car to go back into drive mode by physically moving the gearshift into sport mode and then back into drive mode again. …”

NHTSA complaint #11208212, filed 2019-05, 18,300 miles

Mileage when problems were reported

88% of the 8 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 500 and 4,300 miles.

75%0–1013%10–250%25–500%50–7513%75–1000%100–1500%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (8 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 2,000 miles.

Complaints by year filed

Fewer than 15 complaints, too few for a reliable trend.

20184201920202022202320242025
Complaints by year the complaint was filed with NHTSA. Red bars: the last 3 full calendar years used for the trend. The current year (2026) is partial.

Recalls and investigations

Recall details for the 2018 Hyundai Ioniq Hybrid → · Check a VIN at nhtsa.gov/recalls

Technical service bulletins

TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 70 on record; the latest 10 are shown.

See all 70 bulletins →

Other model years of the Hyundai Ioniq Hybrid

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
20222420,1500———Rising
20211317,5000———Not enough data
20201737,8590———Rising
20191623,4421———Rising
2018132,0002———Not enough data
20174214,0003——Not compared (fewer than 3 comparable model years)Rising

All Hyundai Ioniq Hybrid model years

Frequently asked questions

How many NHTSA complaints does the 2018 Hyundai Ioniq Hybrid have?

NHTSA recorded 13 consumer complaints for the 2018 Hyundai Ioniq Hybrid as of Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2018 Hyundai Ioniq Hybrid is reported most often?

Electrical system is named most often, in 3 complaints (23% of the total), followed by engine with 3.

Has the 2018 Hyundai Ioniq Hybrid been recalled?

NHTSA lists 2 recall campaigns for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

At what mileage are problems with the 2018 Hyundai Ioniq Hybrid reported?

Among the 8 complaints that include a mileage, the median is 2,000 miles and the middle half falls between 500 and 4,300 miles; 88% were filed for vehicles with under 50,000 miles.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.