NHTSA Complaint #11563827 — 2016 KIA SORENTO

Engine stalled while driving on highway. Took it to a Kia dealer and had it diagnosed as an engine block/head gasket failure. I have documentation of service. Service document reads “owner states vehicle runs rough when first started and a/c doesnt cool properly, started vehicle, a/c is currently working normally, upon inspection, found coolant about 3/4 gallon low and has bubbles coming up in reservoir tank, topped coolant, performed engine block test, photo of yellow fluid in tester indicates combustion gases are getting into cooling system and not going out exhaust as it is supposed to, took video of bubbles coming up into tank, advise more than likely due to overheating of engine either has crack in block or warped heads or a combination of the 2, advised recommended long block replacement as tear down is not cost effective , gave estimate, owner declined repairs at this time”. I have been made aware of other customers and people experiencing exact same issue with their Kia sorento models. We have only had this car for over a year from a reputable dealer.