There are 3 stored owner reports matching the brakes leading-label group for the 2017 Kia Cadenza 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 3 of 3 matching reports.
Open the full vehicle complaint log (all categories)The contact owns a 2017 Kia Cadenza. The contact received notification of NHTSA campaign number 21V137000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The local dealer was contacted and it was confirmed that the part was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.
I WAS BRAKING APPROACHING A LIGHT ON A STATE ROAD, WHEN THE BRAKE WENT ALL THE WAY TO THE FLOOR SUDDENLY AND IT FELT AS THOUGH THE WHEELS LOCKED UP. THE VEHICLE SLOWED BUT DID NOT STOP, I REAR ENDED A VEHICLE IN FRONT OF ME.
BRAKE ISSUE: I HAD AN ACCIDENT DUE TO A BRAKE FAILURE ON THIS CAR. I WAS DRIVING VERY SLOWLY GOING DOWNHILL (SPEEDS 0 TO 10 MPH) IN A LINE OF CARS STOPPING AND GOING, STOPPING AND GOING MANY TIMES. AT FIRST THE BRAKE PEDAL FELT NORMAL AS PRESSURE WAS APPLIED THE CAR SLOWED THEN PETAL RESISTANCE WOULD DROP AND THE CAR WOULD SPEED UP DUE TO THE DOWNHILL GRADE. I APPLIED FOOT PRESSURE TO PETAL AGAIN AND THE SAME THING HAPPENED OVER AND OVER AGAIN. I SLOWLY RAN INTO THE BACK OF THE CAR IN FRONT OF ME. I HIT THE CAR IN FRONT OF ME MANY TIMES AS IT MOVED FORWARD. THIS CAR HAS AN AUTONOMOUS EMERGENCY BRAKING (AEB) EQUIPPED ON IT. THE AEB IS SUPPOSED TO APPLY BRAKES WHEN YOU'RE ABOUT TO HIT SOMETHING. IT'S SUPPOSED TO TURN OFF AT ABOUT 6 MPH, IN THIS TRAFFIC MY SPEED VARY THROUGH THIS POINT MANY TIMES. I FEEL THE CONSTANT ON AND OFF OF AEB CONFUSED THE CONTROL SYSTEM ON THE CAR AND CAUSE THE BRAKES TO MALFUNCTION. THE ROAD CONDITION WAS WET BUT NO STANDING WATER. THE ACCIDENT WAS NOT A SKID. THE TIRES ARE IN GREAT SHAPE THE CAR ONLY HAS 14000 MILES ON IT.
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.