Buick 2015 Enclave Owner's Manual page 196

Rear Window Defogger
The rear window defogger uses a
warming grid to remove fog from the
rear window.
1
R (Rear Window Defogger):
Press to turn the rear window
defogger on or off. The rear window
defogger stays on for about
10 minutes, before turning off. The
defogger also turns off when the
engine is turned off. Do not drive the
vehicle until all the windows are
clear.
If equipped with heated outside
rearview mirrors, fog or frost is
cleared from the surface of the
mirror when the rear window defog
button is pressed.
Caution
Using a razor blade or sharp
object on the inside rear window
can damage the antenna or
defogger. Repairs would not be
Caution (Continued)
covered by the vehicle warranty.
Do not stick anything to the rear
window.
Sensors
The solar sensor in the defrost grille
in the middle of the instrument
panel, monitors the solar heat. Do
not cover the solar sensor or the
system will not work properly.
(Continued)
Climate Controls
The interior temperature sensor, on
the instrument panel to the right of
the steering column, measures the
temperature of the air inside the
vehicle.
There is also an exterior
temperature sensor behind the front
grille. This sensor reads the outside
air temperature and helps maintain
the temperature inside the vehicle.
Any cover on the front of the vehicle
could cause a false reading in the
displayed temperature.
The climate control system uses the
information from these sensors to
maintain comfort settings by
adjusting the temperature, fan
speed, and air delivery mode. The
system may also supply cooler air to
the side of the vehicle facing the
sun. The recirculation mode will also
be used as needed to maintain cool
outlet temperatures.
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