The fog lamp light comes
on when the fog lamps
are in use.
The light goes out when the fog lamps are turned off.
See Fog Lamps for more information.
Chevrolet Cobalt Owners Manual. Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog from the rear window.
The rear window defogger only works when the ignition
is in ON/RUN.
(Rear): Press to turn the
rear window defogger on
or off. Be sure to clear as much snow from the rear
window as possible. An indicator light c ...