NHTSA Complaint #11585050 — 2014 LEXUS CT

Engine started misfiring recently at engine cold start and from hybrid transition to engine startup. Engine light came on with reports codes P0302 and P0304. Additionally, another error code P0607 also was detected. Had a certified mechanic assess the car and replaced the four coils for the CT200h. No change in issue. New issue developed this past Monday with an engine temperature light flashing on. Stopped and put a half liter in the coolant reservoir. Engine temperature light did not come back on. Took the car to a certified mechanic and told him to pressure test the coolant system. The mechanic confirmed the head gasket is blown. In the Lexus CT200h online forum there is a clear and compelling case that the EGR malfunctioned and directly contributed to the head gasket blowing. This car has approximately 128,000 miles. I would encourage you to read the Lexus CT 200h forum.