Chevrolet Impala 2016 Owner's Manual page 184

auto stop, the engine will restart if
the air conditioner is off and A/C is
selected.
If temperature controls are adjusted
cooler during an auto stop, the
engine may restart to ensure that
comfort is reached.
(Recirculation) : Press to turn
on recirculation. An indicator light
comes on. Air is recirculated to
quickly cool the inside of the vehicle
or reduce the outside air and odors
that may enter.
Rear Window Defogger
(Rear Window Defogger) :
Press to turn the rear window
defogger on or off. An indicator light
on the button comes on to show that
the rear window defogger is on.
The upper region of gridlines on the
rear window are antenna lines and
are not intended to heat when the
defogger is activated.
If equipped with heated outside
rearview mirrors, they turn on with
the rear window defogger and help
to clear fog or frost from the surface
of the mirror. See Heated Mirrors
0 46.
Caution
Using a razor blade or sharp
object on the inside rear window
can damage the antenna or
defogger. Repairs would not be
covered by the vehicle warranty.
Do not stick anything to the rear
window.
Climate Controls 183