Honda 2005 Civic Owner's Manual page 64

Hazard Warning Button, Rear Window Defogger
Hazard Warning Button
Push the button between the center
vents to turn on the hazard warning
lights (four-way flashers). This
causes all four outside turn signals
and both indicators in the instrument
panel to flash. Use the hazard
warning lights if you need to park in
a dangerous area near heavy traffic,
or if your vehicle is disabled.
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Rear Window Defogger
The rear window defogger will clear
fog, frost, and thin ice from the
window. Push the defogger button to
turn it on and off. The indicator in
the button comes on to show the
defogger is on. If you do not turn it
off, the defogger will shut itself off
after about 15 minutes. It also shuts
off when you turn off the ignition
switch. You have to turn the
defogger on again when you restart
the vehicle.
Make sure the rear window is clear
and you have good visibility before
starting to drive.
The defogger and antenna wires on
the inside of the rear window can be
accidentally damaged. When
cleaning the glass, always wipe side
to side.