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Seat beltsPart report

2021 Hyundai Ioniq Plug-In Hybrid Seat belts Problems

Complaints
1about this part
Share
20%of 5 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the seat belts of the 2021 Hyundai Ioniq Plug-In Hybrid, 20% of the 5 complaints for this model year.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Installing a car seat and the belt buckle failed. The plastic part split and no longer holds the belt together. This was under regular pressure with standard leverage that the car seat design calls for. Nothing was ever on top of the buckle and it is not damaged in any other way at all other than the failure. They refused to replace it via warranty.”

NHTSA complaint #11740246, filed 2026-05

Seat belts: other model years

YearComplaintsShare of year
2021120%
2019218%

Other parts of the 2021 Hyundai Ioniq Plug-In Hybrid

Brakes
2 complaints
Electrical system
2 complaints
Forward collision avoidance
2 complaints
Other or unknown
1 complaints
Vehicle speed control
1 complaints

← All problems reported for the 2021 Hyundai Ioniq Plug-In Hybrid

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology