Hyundai / Sonata / 2021

2021 Hyundai Sonata problems

Owners have filed 188 complaints about the 2021 Hyundai Sonata with NHTSA. Engine accounts for 18.1% of them, narrowly the most common, ahead of power train at 13.3%. A further 17.0% were filed without a specific system named.

Complaints188

Crashes11

Fires0

Injuries25

Deaths0

What owners report breaking

Engine 18.1% · 34

Unknown or other 17.0% · 32

Power train 13.3% · 25

Fuel/propulsion system 11.2% · 21

Electrical system 9.0% · 17

Fuel system, gasoline 6.9% · 13

Forward collision avoidance 4.8% · 9

Visibility/wiper 4.3% · 8

Severity

Of those complaints, 11 describe a crash and 25 report an injury.

Reading the numbers

Across the 25 model years of the Hyundai Sonata in this data, 2021 sits 22nd by complaint volume. 2011 draws the most.

Filings are rising, 123 in the last three years against 65 in the three before. For a vehicle this age that usually points to a wear-related failure owners are hitting now.

The median odometer reading at the time of complaint was 41,000 miles.

In owners' own words

On 5 separate occasions the car has shut itself off while driving. After the first 2 times the car was taken to the dealership where they found nothing wrong and told us to replace the battery. The battery was replaced by the dealer and within the next two weeks the car shut itself off while driving 3 more times. The car will always start back up again right away. This is a very dangerous situation. Engine

The contact owned a 2021 Hyundai Sonata. The contact stated that while driving approximately 70 MPH, the sunroof suddenly fractured. The contact stated that there was no external cause to the failure. The vehicle was taken to the dealer. The vehicle was not diagnosed nor repaired. The contact decided to trade the vehicle. The manufacturer was not made aware of the failure. The approximate failure mileage was 13,300. Visibility · reported at 13,300 miles

Was driving in reverse out of garage and ABS brakes were applied like I hit a patch of ice stopping the car. Released when applied pressure to brake. Then while on highway going 60 miles an hour the emergency brake system went on for no reason applying pressure and red light came on the dash with a left facing arrow. System released within a few seconds but scared me and I still have to drive this car on highway. Service brakes

Verbatim from NHTSA filings. Complaints are unverified owner reports.

Safety recalls

Checking NHTSA for open recalls…

Other Hyundai Sonata years

2017 1,005 complaints · 38.3% engine 2018 555 complaints · 38.2% engine 2019 215 complaints · 40.5% engine 2020 282 complaints · 16.7% fuel/propulsion system 2022 147 complaints · 17.0% engine 2023 144 complaints · 25.7% fuel/propulsion system

Compare all 25 model years →