NHTSA Complaint #11704271 — 2025 KIA SORENTO

Road debris under normal driving conditions caused a puncture of the inverter radiator resulting in a total loss of coolant in the inverter and battery system. Inspection of the system at a Kia dealer confirmed the problem. The first sign of concern was an error displayed on the driver screen stating, "Check drive motor cooling system". There is no mention of this error in the owner's manual for the vehicle, though I did find several online discussions surrounding similar issues and warnings. I was driving on the highway at the time, and outside temperature was just under 40 degrees F. The car continued to drive normally for roughly 15 miles while utilizing the gas engine on the highway but eventually began struggling to accelerate or brake when switching to the electrical system after moving to residential streets. There is not a means of turning off the hybrid system. I received further warnings for several various driver assist functions becoming unavailable and the car became difficult to steer. I parked in a parking lot until the car could be towed for evaluation.