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Other or unknownPart report

2021 Hyundai Sonata Other or unknown Problems

Complaints
32about this part
Share
24%of 135 total for the year
Median mileage
1,400miles
Trend
RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.

NHTSA recorded 32 complaints about the other or unknown of the 2021 Hyundai Sonata, 24% of the 135 complaints for this model year. Where a mileage was given, the median is 1,400 miles. 3 of these say a crash was involved, according to the filers.

Example complaints

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

“I live northern suburbs of Illinois. I was backing out of a parking spot when I couldn’t switch gears from Reverse to Drive. My car showed flashing lights and said system malfunction and service immediately. I had to put the safety brake and turn of my car. It took a couple minutes to reset and turn on my car for me to move it.”

NHTSA complaint #11641099, filed 2025-02

“NHTSA: #25V796000 Recall: #286 2020-23MY SONATA (DN8/DN8A) FUEL TANK Issued on 11/18/2025 and there is no remedy yet for this issue. Hyundai of Ocala has not issued me a loaner car. What am I supposed to do? It’s been over a month since the recall was posted and still no remedy. I’m concerned for mine and my families safety. This car is our only means of transportation. I need a solution”

NHTSA complaint #11707339, filed 2025-12

“The parking assistant camera on the front of the car is loose, which means that the bracket is broke. I took my car into Hyundai and they could not explain to me how it got broke or came loose and this is a safety issue because this helps you park and see what’s in front of you when parking.”

NHTSA complaint #11685346, filed 2025-09

“Rearview camera fails to display an image. It does work sometimes but then most of the times the rearview camera does not display any image as seen in the images attached. This issue started occurring recently, that is when I reverse the car, the rearview camera image is not displayed at all. Earlier the rearview camera was working with out any issue when I reverse the car. Issue seems to be same as campaign number: 24V879000”

NHTSA complaint #11667835, filed 2025-06

“UNKNOWN Wednesday 7-3-24 I was driving on an interstate at night, going approximately 74mph and my car totally powered down and powered back on with no warnings. Everything on the dashboard and display screen went black. This was totally random and has never happened before. I’m a second owner, previously owned by a rental car corporation. I have no idea if there has been previous recalls that have not been repaired or not.”

NHTSA complaint #11606204, filed 2024-08

Other or unknown: other model years

YearComplaintsShare of year
2025318%
2024919%
202378%
20221011%
20213224%
20203016%
20192314%
20185916%
201710313%
20169213%
201516915%
20148511%
20131819%
20121258%
20112176%
20103711%
20094810%
2008215%
2007223%
2006323%
200564%
2004126%
200363%
2002144%
200142%
200031%
199954%
199824%
199724%
199614%
199328%
199127%
198919%

Other parts of the 2021 Hyundai Sonata

Engine
34 complaints
Fuel system
34 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
Seats
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