Cadillac XT4 Owner's Manual page 188

Sensor
The solar sensor, on top of the
instrument panel near the windscreen,
monitors the solar intensity.
The climate control system uses the
sensor information to adjust the
temperature, fan speed, recirculation,
and air delivery mode for best
comfort.
If the sensor is covered, the automatic
climate control system may not work
properly.
Afterblow Feature
If equipped, under certain conditions,
the fan may stay on or may turn on
and off several times after you turn
off and lock the vehicle. This is
normal.
Air Vents
Adjustable air vents are in the centre
and on the sides of the instrument
panel, and on the rear of the centre
console storage.
Move the slider knobs to change the
direction of or to close off the airflow.
CLIMATE CONTROLS
Operation Tips
Clear away any ice, snow, or leaves
from air inlets at the base of the
windscreen that could block the
flow of air into the vehicle.
Clear snow off the bonnet to
improve visibility and help decrease
moisture drawn into the vehicle.
Keep the path under the front seats
clear of objects to help circulate the
air inside of the vehicle more
effectively.
Use of non-GM approved bonnet air
flow deflectors can adversely affect
the performance of the system.
Check with your dealer before
adding equipment to the outside of
the vehicle.
Do not attach any devices to the air
vent slats. This restricts airflow and
may cause damage to the air vents.
187