There are 4 stored owner reports matching the brakes leading-label group for the 2022 Hyundai Kona in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 4 of 4 matching reports.
Open the full vehicle complaint log (all categories)On four separate occasions now, I have been driving on the highway at roughly 60 mph, no cars in front of or beside me, and nothing else obstructing the roadway, when completely out of nowhere the emergency braking activates for 3-5 seconds. Thankfully there was only a car behind me on one occasion, and they were far enough behind to not collide after my sudden braking.
Two times on a highway, the car engaged the automatic emergency brakes when the driver was driving straight forward. We were not turning, breaking, or accelerating and there were no cars close to our car
I was driving on the freeway the car in front of me was at least 4 car lengths away. My car flashed emergency breaks and locked it’s breaks coming to a stop on the fast lane of the freeway. Nearly avoided an accident. This has happened twice- both with no reason and no issue in front of me to cause the car to think it needed to suddenly use emergency brakes.
The brakes began feeling less effective the day before because the car crept forward at a light but the driver thought they may have just eased off the brake pedal. The next day during a 45-minute drive to work the brakes felt more ineffective and a dash display warned "Low brake fluid". The Parking brake light was NOT on while driving. Drove the car from work to the local Hyundai dealer in Alexandria, VA a mile away. The dealer refused to look at car at all and said to come back in 18 days. The dealer said no loaner cars were available. Drove the car back to work. On the way home the Parking brake light came on. Got home and saw the Owners Manual says to park the car and not drive it when the Parking Brake light comes on while the parking brake is released. Checked the brake reservoir and it was completely empty. The brake pedal went to floor and the only way to stop the car was to use the Parking Brake. The reservoir was refilled but all fluid was gone in a few hours of driving. The car was towed ten days later to the same dealer after a manager at the dealership got involved. The tow truck driver had to use the parking brake to drive the car out of the parking garage. The dealer advised the problem was a faulty caliper. The Owners Manual claims the car has a "dual diagonal" braking system as required by law but somehow a single leaking caliper resulted in a COMPLETE loss of pedal braking and ALL brake fluid from the master cylinder reservoir in a short period of time. Had this happened on a highway instead of city streets this could have been a fatal. THE BRAKE MASTER CYLINDER RESERVOIR DOES NOT SEEM TO BE A "SPLIT" RESERVOIR. It has a separator but the "wall" does NOT go all the way to the top of the reservoir. I believe that when the brakes were used the fluid splashed from the "good" half to the leaking half because the reservoir is not 100% physically separate for the two sets of brakes.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.