2021 Hyundai Sonata Forward collision avoidance Problems
- Complaints
- 9about this part
- Share
- 7%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 9 complaints about the forward collision avoidance of the 2021 Hyundai Sonata, 7% of the 135 complaints for this model year. 2 of these say a crash was involved, according to the filers.
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.
“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.”
NHTSA complaint #11639354, filed 2025-01“Vehicle in front of me stopped. Six car lengths between us. I applied brakes, nothing, I even put my left foot on top of my right foot. There was plenty of time to stop but brake peddle wouldn’t go down, Felt like it was locked. Automatic Brake Sensor didn’t work either. Still waiting for inspection from manufacturer , 3 weeks. Never had any problems prior to this, After accident my warning came on about front collision failure .”
NHTSA complaint #11520558, filed 2023-05“Will be driving the car and suddenly hear a beep. Then the dashboard will flash with the ABS light engine light tire pressure light check Blindspot sensors, forward collision sensors. once all the lights appear on the dashboard, I can no longer accelerate. i’ve cleaned the throttlebody. I’ve replaced the gas pedal and it’s still kicking back the same code it still does it the same identical thing. It’s given out on me three times since December with an infant in the car. We are now in February.”
NHTSA complaint #11714874, filed 2026-02“I leased a 2021 Sonata, and the Car has been a nightmare. My Car has been serviced by the dealership twice for a steering wheel that will not stop making noises. I am very concerned for my safety in this Car. The Wheel becomes hard to move. Also, last year, the Car was in the shop for four months while the forward collision sign needed to be fixed. The Car stopped twice. I am terrified to drive this car; it only has 9,200 miles.”
NHTSA complaint #11496631, filed 2022-12“My car barely has 11,000 miles and just the other day it had about 20miles left of gas but as I was driving on the road it started to feel and seem like it was about to die on me, Also the front Wipers are not well restrained with the vehicle you can tell by the way it moves when Wipers are on....Also most of the Signals be It if something is in front of me and the signal goes off BUT THERES NOTHING THERE ...ALSO WHEN IM BACKING UP SOMETIMES the car itself will Force stop as if something is in the way ...BUT AGAIN NOTHING IS THERE AT ALL ...IT HAPPENS EVERY FEW DAYS ....I JUST PURCHASED THIS…”
NHTSA complaint #11509258, filed 2023-02Related service bulletins
- 11029906Feb 25, 2026Some 2019MY and newer vehicles equipped with a front view camera may illuminate certain warning lights and trigger DTC C272246 fault code for the front camera. In the following…
- 10230912Jan 12, 2023Some 2021 ~ 2022MY Sonata (DN8/DN8a) vehicles with N-Line trim may not engage Forward Collision Avoidance Assist â Junction Turning (FCA-JT) due to omitted logic.
Forward collision avoidance: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2024 | 8 | 17% |
| 2023 | 9 | 10% |
| 2022 | 9 | 9% |
| 2021 | 9 | 7% |
| 2020 | 12 | 7% |
| 2019 | 1 | 1% |
| 2018 | 7 | 2% |
| 2017 | 2 | 0% |
| 2016 | 7 | 1% |
| 2015 | 13 | 1% |
| 2014 | 5 | 1% |
| 2012 | 10 | 1% |
| 2011 | 5 | 0% |
| 2008 | 1 | 0% |
Other parts of the 2021 Hyundai Sonata
34 complaintsFuel system
34 complaintsOther or unknown
32 complaintsTransmission and drivetrain
25 complaintsElectrical system
18 complaintsVisibility (wipers, defrost, mirrors)
12 complaintsAir bags
4 complaintsBrakes
4 complaintsBody and structure
4 complaintsLane departure
3 complaintsSeat belts
2 complaintsSeats
2 complaints
← All problems reported for the 2021 Hyundai Sonata
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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