One problem related to front seat heater/cooler has been reported for the 2012 Lexus ES350. The most recently reported issues are listed below.
Tl-the contact owns a 2012 Lexus Es350. The contact stated that while driving at approximately 65 mph, when the seat heater was turned on it began to smoke. The vehicle was taken to the dealer and was diagnosed found a small burn hole on the left side of the driver's seat and the manufacturer said there were no other malfunctions. The manufacturer was notified of the failure. The failure mileage was 15,200. Pp.