2017 Kia Cadenza Complaints

Engine oil light is on and there is a burning smell when I drive. Fear of a fire breaking out in the engine when driving or parked. Had it looked at by a technician and they expressed those concerns to me and that brings me great worry. The service technician believed it was just the oil cap being loose but there was no evidence of that.

The vehicle harness is burned and under recall sc206 for HECU fuses that was allegedly repaired which should have required a check of the harness connections . part number 91223f6632 is for the wire harness during engine replacement for campaign wty039 I was told the harness was melted and needed replacing , dealer put the car back together and told me we had to wrap up the work and return rental and get my car knowing it is a fire hazard I was in contact with warranty company for escalation who would not cover the recall part according to the dealer , I am still in escalations with Kia I have been left with no vehicle .engine repair was completed via dealer ,but they have reinstalled the broken harness and told me the car is ready for pick up. I am a disabled woman with small children and do not want to burn up in a fire was advised to report to dmv and nhtsa

I currently have a complaint 11709255 regarding the electric thermostat. I just had that part replaced in November of 2025 for the 3rd time. Last week, again I had a warning of engine problem. The next day there was cold air blowing when the heat was on. The dash thermostat immediately began to move to hot. I was thankfully close to home. I turned car off and fan continues to run under the hood. I cannot afford to keep having this part replaced. Please look into this. This is not right.

Check engine was flashing in front of my house in Brookhaven Pa. Took to mechanic around the corner, diagnosed with a blown head gasket & oil in my anti freeze over flow. Internal engine failure. Had towed to Kia dealership in NJ

I have and am the original owner of a Kia Cadenza 2017 with the 3.3L Lambda engine (same engine as the Sorento lawsuit). The vehicle is currently at the dealership getting repaired due to carbon buildup causing the fuel injectors to malfunction( despite of consistently being on top of maintenance and oil changes).I have read online of lots of users with failed engines due to carbon buildup in these engines. The warning lights I got were p0171,p0174, and p0191, and am worried that after the repair the engine will eventually fail due to the buildup as the main issue isn’t properly being addressed. The issue occurred about 300 miles ago where the dealership erased it. Then told the vehicle did not have any issues. Brought it back to the Kia dealership where they finally gave a proper diagnosis after being told nothing was wrong with car. I am concerned as there are lots of owners online experiencing the same issues with their Kia cadenzas and nothing done about it. Took the vehicle in aft...