The official notice
Defect
Certain vehicles equipped with the comfort seats option may have a seat heater element that can malfunction when the ignition switch is in the "ON" position and the seat heater switch is also "ON". If this happened, the seated occupant may experience excessive heat in this location. The heating mat could damage, or melt a small hole in the seat. If this were to occur, an electrical/melting smell or small amount of smoke would be noticeable. In some cases, the small hole in the seat could damage the seated occupant's clothing. In rare instances, this could lead to a minor or superficial skin injury.
Safety Risk
No risk description available.
Remedy
Dealers will modify the driver's seat heater by installing an electrical repair kit and will install a new passenger side seat heater switch.