SUZUKI issued a recall on the ESTEEM model

Note: Vehicles equipped with a Suzuki accessory engine block heater. Certain vehicles may experience a high temperature condition in the silicone connector plug and/or electrical extension cord. Prolonged high temperatures in the plug and cord can result in material degradation and an electrical short circuit. Arcing from a short circuit in the presence of combustible materials could result in an engine compartment fire. Correction: Block heaters will be replaced/refurbished with new units or components incorporating an improved design.