Thunderbird OEM Heated Seat Switch -2003-2005 – This is a new Ford OEM heated seat switch for 2003-2005 Thunderbirds. As is the case with many of the frequently-used electrical switches, this switch is prone to failure due to age or repeated use. This switch is compatible with all 2003-2005 Thunderbirds. The 2002 Thunderbird did not offer the heated seat option. Please specify ‘Driver’ or ‘Passenger ‘ side when ordering as these parts are not interchangeable.