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SeatsPart report

2021 Hyundai Sonata Seats Problems

Complaints
2about this part
Share
1%of 135 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the seats of the 2021 Hyundai Sonata, 1% of the 135 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.

“The driver seat motor malfunctioned when pennies got jammed iin the unprotected/exposed seat tracks. Hyundai would not cover the warranty and charged me $2000.00 for repair. After complaining to the Hyundai National customer service they would not consider my point of contention that the unproteted/exposed tracks contributed to the failure. A professional mechanic stated that a fuse should have failed before the motor malfunctioned.”

NHTSA complaint #11699648, filed 2025-11

“We lease a 2021 Sonata sel equipped with air bag system featuring an ocs in the right front seat. The purpose of the ocs is to disable right passenger seat front air bag when it detects ta child restraint system or small child in the right front seat. Right front air bag is disabled to prevent injuries to a child from a right front air bag inflation during a crash. My wife is about 4'10 tall and weighs 135#. When seated in passenger seat, she requires a cushion to raise her so she can see over dashboard and out side window. …”

NHTSA complaint #11435886, filed 2021-10

Seats: other model years

YearComplaintsShare of year
202516%
202311%
202222%
202121%
2020169%
201821%
201710%
201641%
2015141%
201451%
201320%
201250%
2011150%
200931%
200882%
2007193%
2006131%
200521%
200421%
200131%
200021%
199812%
199314%
199215%

Other parts of the 2021 Hyundai Sonata

Engine
34 complaints
Fuel system
34 complaints
Other or unknown
32 complaints
Transmission and drivetrain
25 complaints
Electrical system
18 complaints
Visibility (wipers, defrost, mirrors)
12 complaints
Forward collision avoidance
9 complaints
Air bags
4 complaints
Brakes
4 complaints
Body and structure
4 complaints
Lane departure
3 complaints
Seat belts
2 complaints

← All problems reported for the 2021 Hyundai Sonata

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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