Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2014 Kia Cadenza owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2014 Kia Cadenza. The contact stated while driving at an undisclosed speed, she observed smoke coming from the engine compartment, and the electronics started behaving erratically, prompting the contact to pull over to the shoulder of the roadway, where the vehicle stalled and failed to restart. No warning lights were illuminated. The vehicle was towed to the dealer, who diagnosed a failure with the hydraulic electronic control unit which was related to NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic). The vehicle was not repaired. The contact received notification of NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. …
The contact owns a 2014 Kia Cadenza. The contact received notification of NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated while driving at an undisclosed speed, the check engine warning light illuminated. The contact drove the vehicle to an independent mechanic who could not determine the cause of the failure. The dealer was contacted regarding the recall repair but was unable to confirm when parts would be available for the recall repair. The vehicle was not repaired. The manufacturer was not made aware of the issue. The failure mileage was approximately 55,000. VIN tool confirms parts not available.
The contact owns a 2014 Kia Cadenza. The contact stated while driving approximately 25 MPH, there was an abnormal odor of smoke detected. The driver stopped, looked under the hood, and found evidence of a fire. There were no warning lights illuminated. The contact received notification of NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The local dealer was contacted. 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 failure mileage was approximately 56,002. VIN tool confirms parts not available.
The contact owns a 2014 Kia Cadenza. The contact received notification of NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The ABS warning light and the check engine warning light were illuminated. The local dealer was contacted. The vehicle was not diagnosed or repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the failure. The failure mileage was approximately 117,000. VIN tool confirms parts not available.
The contact owns a 2014 Kia Cadenza V6. The contact stated that water leaks into the windshield whenever it rains. The contact stated that when driving at various speeds the vehicle would hesitate before accelerating and when attempting to turn left or right the vehicle would briefly stop and then jump/surge forward. The vehicle was taken to the dealer who refused to remedy the defective windshield. The vehicle was inspected by SafeLight who diagnosed that the windshield seal had failed due to a lack of adhesive. The seal was replaced. The failure persisted after the repair. The dashboard had become inflated. The vehicle was returned to the dealer who did not diagnose the vehicle. The vehicle had not been repaired. The failure persisted and the vehicle would announce a warning stating, " You Must Comply" The contact was unsure what the warning was referring to. …
The contact owns a 2014 Kia Cadenza. The contact stated that the vehicle was included in a recall 23V652000 (Service Brakes, Hydraulic) and was taken to the dealer for the recall repair. After the repair was completed, while attempting to accelerate, the vehicle hesitated before accelerating. The contact stated that on several occasions the vehicle was shifted into reverse and then driven before accelerating as intended. Additionally, the sunroof was leaking. The vehicle was taken to SAFELITE Auto Glass, and the contact was informed that there was no adhesive glue on the top of the windshield from the driver to the passenger's side, causing a slight detachment. The contact was also informed that the sunroof had severe rusting around the seal due to rain being able to leak from the lack of adhesive. The rust caused the handle for the sunroof to detach. …
The contact owns a 2014 Kia Cadenza. The contact received notification of NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was made aware of the issue and confirmed that parts were not yet available. Additionally, the contact stated that after a visual inspection underneath the vehicle, she became aware of excessive corrosion and water damage. The vehicle was taken to the dealer, who declined to inspect the vehicle. The failure mileage was unknown. VIN tool confirms parts not available. …
Power brake booster check valve has failed twice since purchasing the vehicle new. Shortly after purchase, within the first month, the brake booster would loose vacuum after as little as an hour after driving. It progressed to occasional hard pedal during braking after acceleration. The dealer replaced it under warranty. The same problem arrose last month, April 2021 at 61,000 miles. The dealer said it is no longer covered and they would charge a diagnostic fee and I would have to pay for parts and labor. This is a safety concern that based on internet searches is happening to others. The replacement Part # 591391C200 Brake Vacuum Hose Connector and is currently unavailable from Kia and I had to purchase it from Hyundai.
The contact owns a 2014 Kia Cadenza. The contact received notification of NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The contact had not experienced a failure. VIN tool confirms parts not available.
The contact owns a 2014 Kia Cadenza. The contact received notification of NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The contact had not experienced a failure. VIN tool confirms parts not available.
Related recalls
Service brakes, hydraulic › Antilock/traction control/electronic limited slip › Control unit/module
Kia America, Inc. (Kia) is recalling certain 2010-2019 Borrego, 2014-2016 Cadenza, 2010-2013 Forte, Forte Koup, Sportage, 2015-2018 K900, 2011-2015 Optima, 2011-2013 Optima Hybrid, Soul, 2012-2017 Rio, 2011-2014 Sorento, and 2010-2011 Rondo vehicles.
Remedy: Owners are advised to park outside and away from structures until the recall repair is complete. Dealers will replace the HECU fuse, free of charge.
NHTSA investigations
Hyundai and Kia ABS Module Fires
The Office of Defects Investigation (ODI) has received eight Hyundai Motor America (Hyundai) and eight Kia America, Inc. (Kia) Part 573 Recall Reports between 2016 and 2023. The combined 16 safety recalls all involve the antilock braking system (ABS) modules or Hydraulic Electronic Control Units (HECU) manufactured by the equipment supplier Mando.
Brake complaints in other Cadenza years
Frequently asked questions
How common are brake problems on the 2014 Kia Cadenza?
NHTSA has 23 complaints about the brakes of the 2014 Kia Cadenza, 21% of the model year's 111 complaints.
Is there a recall for 2014 Kia Cadenza brake problems?
Yes — NHTSA recall 23V-652 (control unit/module, Sep 25, 2023). Recall repairs are free at authorized dealers.
At what mileage do 2014 Kia Cadenza brake problems start?
Half of the complaints with a recorded mileage happened before about 55,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.