1792007 TUNDRA from Jul. ’07 Prod. (OM34463U)
To defog or defrost the back window,
push the switch with the back window
closed.
The key must be in the “ON” position.
The thin heater wires on the inside of the
back window will quickly clear the surface.
An indicator light will illuminate to indicate
the defogger is operating.
On some models, the outside rear view
mirror defoggers and/or the front wind-
shield wiper de−icer also operate simulta-
neously by this switch. On vehicles with
the outside rear view mirror defoggers, the
heater panel in the outside rear view mir-
rors will quickly clear the mirror surfaces.
On vehicles with the front windshield wip-
er de −icer, the front windshield wiper
blades will be de− iced.
Push the switch once again to turn the
defogger off.
The system will automatically shut off af-
ter the defoggers have operated about 15
minutes.CAUTION
On some models, since the mirror
surfaces can get hot, do not touch
them when the defogger switch is on.
Make sure you turn the defoggers off
when the surfaces are clear. Leaving the
defoggers on for a long time could cause
the battery to discharge, especially during
stop −and− go driving. The defoggers are
not designed for drying rain water or for
melting snow.
On some models, if the outside rear view
mirrors are heavily coated with ice, use a
spray de −icer before operating the switch.
NOTICE
When cleaning the inside of the back
window, be careful not to scratch or
damage the heater wires or connec-
tors.