KIA Cadenza
Reliability, NHTSA Complaints & Recall History

Safety Recall

Safety Recall

Safety Recall

Safety Recall

Safety Recall

Safety Recall

Safety Recall

Safety Recall

Safety Recall

Safety Recall

Safety Recall

Safety Recall

Hello, I wasn't notified of the recall on my vehicle. The steering wheel is extremely hard to turn and all of the system lights are on.

TL* THE CONTACT OWNS A 2019 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 CONTACT STATED THAT THE MANUFACTURER HAD EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. AIRPORT KIA NAPLES (3325 WESTVIEW DR, NAPLES, FL 34104) WAS MADE AWARE OF THE ISSUE, AND INFORMED THE CONTACT THAT THE PART WAS NOT AVAILABLE UNTIL AUGUST 8, 2021. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE, AND INFORMED THE CONTACT TO GET A RENTAL VEHICLE SINCE THE PARTS WERE ON BACKORDER. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT.

Complete engine failure due to rods and bearings (same as all other Kia engine recalls currently active). Ironically my car wasn’t included in the recall. Also I’ve noticed that Hyundai has extended the warranty for this same engine in the 2018 Santa Fe basically acknowledging it has a problem but didn’t include the 2018 Kia cadenza which has the EXACT SAME ENGINE. Now I have engine failure prematurely and they are trying to deny repairs. Also was never notified of the KSDS “upgrade” before engine failed only after and it had been to a Kia dealer for fuel pipe repair just recently in which they could have installed it before engine failure.

No prior issues/light on dashboard as the car was just serviced for coolant hose replacement. On my way home from work, the car stalled and loss power at the light. The signs were giving engine failure due to losing power then a clicking/ticking noise. After pulling over and giving the car a break I tried to restart it, at that point the noise had change from the clicking to a weird knocking noise. I had the car towed to my trusted mechanic shop. He advised me that the engine indeed did fail and that it would need to be replaced. Verbatim he said: “The diagnosis is that the noise is an internal engine failure, rod bearing and connecting rods.” This was a major safety concern because the engine could have caught fire during that short drive I had home risking my life and surrounding vehicles. Aware of the Kia engine recalls already, I called Kia just for them to tell me it’s not on their recall list so it’s going to be an out of pocket repair. I asked if there was a way for it to be included in the engine recall as an exception due to low mileage (technically early engine failure) and the customer service rep was rude and condescending about how it’s not Kia’s problem.

Vehicle has been properly maintained and at 78k miles, while at a stop sign, the engine seized. No warning signs from vehicle appeared.

Failure of Oil Pressure Sensor resulting in oil leaking into wiring harness, this is the same problem with 3.3L engines in other models that KIA has extended coverage. I contacted KIA Customer Care and was told they tracked VIN and not enough Cadenzas had reported the same repair. If the problem is with the engine sensor then it should apply regardless of vehicle it was installed.

I PURCHASED A NEW 2018 KIA CADENZA WITH 11 MILES ON IT. I HAVE HAD THE CAR LESS THAN A YEAR AND IT RANDOMLY STALLS WHILE IN DRIVE MODE IN MOTION AND SOMETIMES WHILE SITTING IDLE. IT HAS STALLED ON THE FREEWAY, NEIGHBORHOOD STREETS, DRIVE-WAY AND ON FEEDER ROADS. THE CAR HAS BEEN IN AND OUT OF THE DEALERSHIP AT LEAST 5 TIMES. KIA MOTORS CANNOT FIGURE OUT WHAT'S WRONG WITH THE VEHICLE. THEY PLACED A TRACKER IN THE VEHICLE AND DETERMINED THE CRANK SENSOR WAS MALFUNCTIONING. THEY REPLACED THE CRANK SENSOR, I PICKED THE VEHICLE UP AND LESS THAN 24 HOURS LATER THE CAR STALLED AGAIN. IT STALLED 2 ADDITIONAL TIMES BEFORE RETURNING IT TO THE SHOP AGAIN THIS PAST WEEK.

WE BECAME MORE CONCERNED AFTER SEEING A REPORT ABOUT FIRES INVOLVING KIAS THIS MORNING. OUR NEW 2018 KIA CADENZA HAD ABOUT 1,750 MILES ON THE ODOMETER ON OCTOBER 11, 2018, WHEN THE FOLLOWING OCCURRED: WE WERE ON A CITY STREET, STOPPED AT A STOP LIGHT, WHEN WE SAW SOME SMALL, LIGHT STRANDS OF SMOKE THAT SEEMED TO BE RISING JUST OUTSIDE THE RIGHT, FRONT FENDER. WE PULLED INTO A NEARBY PARKING LOT & CHECKED UNDER THE HOOD. THERE WAS A SMELL. IT SEEMED LIKE SOMETHING HOT OR SCORCHED (RUBBER OR OIL RELATED??), BUT NO SMOKE OR LEAKS WERE NOTICEABLE. IT DID SEEM LIKE THERE WERE SMALL SPOTS, SCATTERED ON THE UPPER SURFACES TO THE RIGHT OF THE ENGINE. AFTER PARKING IN OUR GARAGE AT HOME, THE SMELL BECAME VERY STRONG & REMAINED THAT WAY IN THE CLOSED GARAGE. WE DID NOT CHECK TO SEE HOW LONG THE SMELL REMAINED STRONG, BUT IT WAS STILL VERY NOTICEABLE WHEN I RETURNED 10 OR 15 MINUTES LATER. YESTERDAY, ON 10/12/18, WE BROUGHT THE VEHICLE TO THE KIA GARAGE & REPORTED THIS. THE SERVICE ADVISER LOOKED UNDERNEATH, SAID THAT SOMETHING WAS GOING ON AND SENT IT TO THE SHOP TO CHECK. AROUND 90 MINUTES LATER, HE SAID THEY FOUND WIDESPREAD SPLASHES OF OIL, BUT HAD CLEANED THE ENGINE. HE ASKED IF WE HAD DRIVEN OVER ANYTHING LIKE THAT, BUT WE HAD NOT. THEY HAD RUN THE ENGINE & TEST DRIVEN FOR AT LEAST 40 MINUTES - BUT HAD NOT BEEN ABLE TO DETECT LEAKS OR OTHER SOURCES OF THE PROBLEM. THEY ALSO NOTED THAT THE OIL LEVEL WAS STILL FULL. HE SAID TO TAKE THE CAR, DRIVE IT FOR 100 MILES, THEN BRING IT BACK FOR FURTHER TESTING. THE SMELL IN THE GARAGE WAS STILL NOTICEABLE AFTER RETURNING HOME, BUT NOT NEARLY AS STRONG AS THE PREVIOUS DAY. WE ASSUME THIS IS BECAUSE THE GARAGE HAD CLEANED THE ENGINE. WE DO PLAN TO TAKE THE CAR BACK AFTER 100 MILES, BUT WE ARE QUITE NERVOUS DRIVING IT ANYWHERE NOW.

My 2016 Kia Cadenza (VIN [XXX] ) experienced repeated overheating, coolant loss, and eventually white exhaust smoke consistent with internal coolant intrusion. The issue began mid-2025 and worsened over time. Despite reporting overheating and coolant loss to Central Kia of Plano, the dealership failed to diagnose the problem, did not escalate to Techline, and did not check or apply Kia Service Action WTY039, which was active. They returned the vehicle to me still overheating, forcing me into multiple out-of-pocket repairs for coolant, radiator, radiator fan, and water pump replacement. None resolved the issue, and the vehicle became unsafe to drive due to rising temperature and smoke. A second dealer, Mesquite Kia, performed a proper diagnosis. Kia Corporate approved an engine replacement under WTY039 on 11/6/25, and the repair was completed on 11/29/25, confirming the overheating was caused by a covered engine defect. Kia Corporate later denied reimbursement for prior repair attempts by blaming “3rd party repairs,” ignoring that the dealership’s misdiagnosis forced me to seek outside help. This defect created safety hazards including overheating while driving, risk of stalling, coolant intrusion, and visible smoke. I am requesting NHTSA review Kia’s handling of this defect and the failure of Central Kia of Plano to diagnose or escalate a known engine issue, which allowed a safety defect to worsen. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I am submitting this complaint regarding a 2016 Kia Cadenza (VIN: [XXX] ) and Kia’s repeated failure to properly diagnose or repair a serious overheating/safety defect despite this being a well-documented and known issue affecting these engines. Vehicle and Service Information •Vehicle: 2016 Kia Cadenza (VIN: [XXX] ) •Mileage: ~129,608 •Dealer Involved: Central Kia of Plano (Plano, TX) •Repair Order #: [XXX] •Dates: [XXX] Issues 1.Overheating / Known Engine Defect •My vehicle overheats, especially with the A/C on or at idle. •Kia has already been directed to issue extended warranties on these engines due to systemic defects (including bearing wear, engine failure, and overheating). •Despite this, Kia continues to deny or delay proper repairs and instead authorized the dealer to replace only a cooling fan relay, which did not fix the defect. 2.Dealer Misconduct •Central Kia of Plano kept my vehicle for 10 days, charged me $269.92, and returned the vehicle still overheating. •I was told a Techline case would be submitted, but I have confirmed this was never done. 3.Incomplete Recall Repairs •I requested completion of open recalls: •SC232 – Windshield Bonding •SC284VG – HECU Fire Risk •The dealer marked one as complete and the other as pending, but I have no confirmation in Kia’s system that either was properly completed. 4.Corporate Inaction •I have multiple open cases with Kia Corporate, but they have failed to escalate or reassign me to a reputable dealer. •Despite the extended warranty obligation, Kia has not replaced the engine or confirmed a permanent repair. Why I Am Contacting NHTSA •This is not an isolated issue — it is a known safety defect across these engines. •Kia has been required to extend warranties for this exact defect but is failing to honor that coverage by stalling, misdiagnosing, and leaving vehicles unsafe. •My vehicle remains unsafe to drive INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2016 Kia Cadenza. The contact stated that there was water and air leaking through the windshield of the vehicle. The vehicle was taken to the dealer to be repaired under NHTSA Campaign Number: 22V158000 (Visibility); however, the dealer inspected the vehicle and informed the contact that the repair was not necessary. The contact stated that while the vehicle was at the car wash, a significant amount of water leaked through the windshield, causing the contact to be soaked. The contact stated that upon attempting to wipe the interior of the windshield, the windshield was unsecured and almost separated from the vehicle. The contact stated that the windshield could be pushed forward. The contact was able to put the windshield back into place. The dealer was not informed of the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.

While driving down the highway, I heard a loud boom and my sunroof exploded sending glass everywhere all through the car with my kids in the backseat. Driving straight on the highway at 60 miles per hour and nothing to hit the glass, Something is definitely wrong with the pano sunroof on these cars.

The contact owns a 2016 Kia Cadenza. The contact stated that while driving at an undisclosed speed, there was an abnormal sound coming from the front windshield, after which she observed that the windshield had begun to crack and was leaking. The vehicle was taken to the dealer, who diagnosed a failure with the windshield bonding. The vehicle was repaired, but the failure reoccurred. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 22V158000 (Visibility) the VIN was included, and the vehicle had been repaired. The manufacturer was notified of the failure but provided no assistance. The failure mileage was unknown.

The contact owns a 2016 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 2016 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 manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

The contact owns a 2016 Kia Cadenza. The contact stated that there was water leaking into the vehicle from the top of the front windshield. There were no warning lights illuminated. The contact called the local dealer, who stated there was no recall. The manufacturer was contacted and referred the contact to the dealer. The vehicle was taken back to the local dealer to be repaired under NHTSA Campaign Number: 22V158000 (Visibility). The dealer diagnosed the vehicle and informed the contact that the front windshield was cracked and declined to perform the repair. The vehicle was not repaired. The manufacturer was contacted again and informed the contact that the cracked windshield nullified the recall repair. The failure mileage was approximately 140,000.

The contact owns a 2016 Kia Cadenza. The contact received notification of NHTSA Campaign Number: 22V158000 (Visibility) 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. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

Per the Kia dealer head bolts have loosened up which have resulted in engine failure.

While driving, I heard a loud pop followed by a loud grinding noise. I wqs able to pull over and noticed the passenger front side of the car was lower than the rest of the car. At around 75k the passenger side strut went out. Fast forward 2 months later, driving my car the same thing happened but to the drivers side. Both struts needing replaced by 80k. Definitely should be a recall on these struts as this seems very premature and alot of other people with this car have had this problem.

The Windshield is a defect on the cadenzas, as the seals break on them. It lifts up while driving or even shutting my doors, which I see as a safety hazard. It causes water to leak into the car by where my feet are and from the top of the windshield as well. I believe this is causing my car and other cadenzas to also have electric issues since i’ve had, 7 speakers blew, back up camera glitched and stopped working, sunroof stopped working and i’ve had signals / sounds stop working as well a shot throttle all before 24,000 miles.. Kia has been giving me a run a round with trying to fix my windshield and still has yet to do so. I see this as a huge safety issue. What happens if I hit a bump and it falls off when I’m driving? It could cause a huge accident and or killing myself and others. At first, I thought this was my fault.. but then Kia said it looked like there was no influence I had done anything to it (despite still not replacing it for me). I decided to do some research. I ended up finding valuable information as I found an online forum where cadenza owners state their problems with the vehicle. Mostly all the issues were a loose windshield causing water to leak into the car / and electrical issues similar to mine as a result. I then found a Kia Cadenza forum page on facebook where people were saying the same things. Facebook page is called Kia Cadenza K7 Owners. I have pictures of my cars issues on the windshield and complaints of others going through the same issue.