1. Disconnect the negative battery cable..
2. Remove the liftgate upper trim..
3. Remove the rear spoiler..
4. Disconnect the connector.

5. While pressing the high-mount brake light tab in the direction of arrow (1) shown in the figure, press the high-mount brake light in the direction of arrow (2) to detach the high-mount brake light and liftgate.

6. Detach all the high-mount brake light tabs and liftgate and remove the high-mount brake light from the liftgate.

CAUTION:
If the high-mount brake light is removed from the liftgate, the high-mount brake light may fall off and be damaged. When removing the high-mount brake light from the liftgate, hold the high-mount brake light on the lens side with a hand during servicing.
7. Install in the reverse order of removal.
High Mount Brake Light
License Plate LightOil Pressure Switch Removal/Installation [Fw6 A EL, Fw6 Ax EL]
WARNING:
A hot transaxle and ATF can cause severe burns. Turn off the engine and wait
until they are cool.
Always wear protective eye wear when using the air compressor. If the air
compressor is used, any particles of dirt or soiling could spatter and get into
the eyes.
...
Rear Window Defroster/Outer Mirror Heater
Outline
Fogging is cleared from the rear window and outer mirror glass by heating
of the filament.
Structural view
System wiring diagram
Vehicles with full-auto air conditioner system
Vehicles with manual air conditioner system
Construction
Rear window defroster
...
Thermostat
Purpose, Function
When the engine coolant temperature is low, the thermostat blocks the engine
coolant passage between the radiator and engine. As a result, because engine
coolant cycles without passing through the radiator, warming is promoted.
Construction
The thermostat ...