FORD 2003 Expedition v.4 - Manual (Page 93)

REAR WINDOW DEFROSTER
Used to manually enable or disable
rear window defrost in all modes.
After approximately 10 minutes of
rear defrost operation, the climate
control system will automatically
disable the rear defrost operation. If
desired, the rear defrost can be
manually disabled through the use
of the rear defrost button. When
operating, the rear defrost indicator will be lit.
R
Climate Controls
93