Heater Lockout Switch: Description and Operation

The Heater Switch (3) is illuminated with LEDs whenever the headlamps or marker lamps are on. The lamp brightness is adjustable with the dimmer switch located in the Instrument Cluster. The heater switch LEDs cannot be adjusted or repaired. If faulty or damaged, the entire Heater Switch Assembly must be replaced as a unit. For complete Heater Switch removal procedures, refer to the Heater Control removal in the Heating and Air Conditioning.