Cadillac 2007 CTS, Owner'S Manual, Page: 182 / 518

If the airflow seems low when the fan speed is at
the highest setting, the passenger compartment
air filter may need to be replaced. For more
information, see
Passenger Compartment Air Filter
on page 186 and Scheduled Maintenance on
page 463 .
h
(Recirculation): This mode keeps outside
air from coming in the vehicle. It can be used
to prevent outside air and odors from entering your
vehicle or to help heat or cool the air inside your
vehicle more quickly. Press this button to
switch between recirculation and fresh air. Press
the auto button to have the system select the best
air delivery mode for your temperature setting.
Recirculation is not available in the defrost mode
and will automatically turn off after 10 minutes
when defog is selected.
Using recirculation for long periods of time may
cause the air inside your vehicle to become too dry
or stuffy. To prevent this from happening, after
the air in your vehicle has cooled, turn the
recirculation mode off or press the auto button.
Q
PWR
R
(Power/Driver’s Temperature): Press
the PWR button located on the driver’s side of
the climate control panel to turn the entire climate
control system on or off. Press the up or down
arrow on the switch to increase or decrease
the automatic temperature setting.
Q
PWR
R
(Power/Passenger’s
Temperature): Press the PWR button located on
the passenger’s side of the climate control
panel to allow the passenger’s climate control
setting to be different than the driver’s. Press the
up or down arrow on the switch to increase or
decrease the automatic temperature setting.
A/C OFF (Air Conditioning): Press this button to
manually turn off the air conditioning compressor.
Press AUTO to return to automatic operation
or press the A/C OFF button again.
182