2008 CADILLAC SRX climate control

Reading Lamps
The reading lamps are located on the overhead console.
These lamps come on automatically when any door is
opened.
For manual operation, press the button next to each
lamp to turn it on or off.
If the reading lamps are left on, they automatically shut
off 10 minutes after the ignition has been turned off.
Electric Power Management
The vehicle has Electric Power Management (EPM)
that estimates the battery’s temperature and state
of charge. It then adjusts the voltage for best
performance and extended life of the battery.
When the battery’s state of charge is low, the voltage is
raised slightly to quickly put the charge back in. When the
state of charge is high, the voltage is lowered slightly to
prevent overcharging. If the vehicle has a voltmeter gage
or a voltage display on the Driver Information Center
(DIC), you may see the voltage move up or down. This is
normal. If there is a problem, an alert will be displayed.The battery can be discharged at idle if the electrical
loads are very high. This is true for all vehicles.
This is because the generator (alternator) may not be
spinning fast enough at idle to produce all the power that
is needed for very high electrical loads.
A high electrical load occurs when several of the
following loads are on: headlamps, high beams, fog
lamps, rear window defogger, climate control fan at
high speed, heated seats, engine cooling fans, trailer
loads, and loads plugged into accessory power outlets.
EPM works to prevent excessive discharge of the
battery. It does this by balancing the generator’s output
and the vehicle’s electrical needs. It can increase engine
idle speed to generate more power, whenever needed.
It can temporarily reduce the power demands of some
accessories.
Normally, these actions occur in steps or levels, without
being noticeable. In rare cases at the highest levels of
corrective action, this action may be noticeable to the
driver. If so, a Driver Information Center (DIC) message
might be displayed, such as Battery Saver Active or
Service Battery Charging System. If this message is
displayed, it is recommended that the driver reduce the
electrical loads as much as possible. SeeDIC Warnings
and Messages on page 3-53.
3-20

Ashtray
The ashtray is located under the climate control panel
on the instrument panel. Press on the door to release
the ashtray.
To empty the ashtray, remove it from the instrument
panel by gripping the edges and pulling straight out.
To reinstall, push the tray back into place.
There may also be ashtrays in the rear doors.
Cigarette Lighter
Notice:Holding a cigarette lighter in while it is
heating does not let the lighter back away from
the heating element when it is hot. Damage from
overheating can occur to the lighter or heating
element, or a fuse could be blown. Do not hold
a cigarette lighter in while it is heating.
The cigarette lighter is located next to the ashtray.
The vehicle does not have any cigarette lighters for
the rear seat passengers.
To activate the cigarette lighter, push it into the heating
element and let go. When the lighter is ready it will
pop back out by itself.
Analog Clock
The analog clock is located on the instrument panel
above the radio. The clock is not connected with
any other vehicle system and runs by itself. To adjust
the clock:
1. Locate the adjustment button directly below the
clock face.
2. Push and hold the adjustment button to advance
the clock hands. Holding the button down will
cause the clock to advance faster. Release the
buttonbeforeyou get to the desired time.
3. Push and release the button to increase the time
by one minute increments until the desired time is
reached.
3-22

Climate Controls
Dual Climate Control System
The heating, cooling, defrosting, and ventilation for the
vehicle can be controlled with this system.
Automatic Operation
The climate control system automatically adjusts the
air temperature, air delivery mode, fan speed, and air
conditioning for best comfort in the vehicle. To activate
the automatic system:
AUTO (Automatic Mode):
1. Turn the fan and mode controls to the AUTO
position. This also sets the recirculation mode
to automatic operation on the display.
2. Press the up or down arrows to adjust the
temperature to a comfortable setting between
70°F (21°C) and 80°F (27°C).
3. Allow the system time to stabilize. This might take
several minutes in very hot or cold weather. Then
adjust the temperature, as needed for best comfort.
Choosing the coldest or warmest temperature setting
will not cause the system to heat or cool any faster.
In cold weather, the system starts at reduced fan
speeds to avoid blowing cold air into the vehicle until
warmer air is available. The automatic system starts
out blowing air at the oor, but changes modes
automatically as the vehicle warms up to maintain
the chosen temperature setting. The length of time
needed to warm the interior depends on the outside
temperature and the amount of time that has passed
since the vehicle was last driven. Dual Climate Control System
3-23

«ª(Driver’s Temperature Controls):Press the up
or down buttons closest to the driver to manually increase
or decrease the temperature inside the vehicle.
«ª(Passenger’s Temperature Controls):Press
the up or down buttons closest to the passenger to
manually increase or decrease the temperature for
the front passenger. If the passenger’s climate control
system is off, pressing either of these buttons turns it on.
Manual Operation
9(Fan):Turn the left control to adjust the fan speed
manually if the automatic setting is higher or lower than
desired. The fan speed remains at this level until you
return to AUTO or adjust to a different level. In the
automatic position, the blower might go to a lower speed
during an OnStar
®session to limit the background noise.
To change the current mode, select one of the following
positions using the right control:
AUTO:Turn the control to this position to turn on the
automatic delivery mode operation.
F(Vent):Turn the control to this position so that air is
directed to the instrument panel outlets.
*(Bi-Level):Turn the control to this position so
that the air is directed to the instrument panel outlets
and the oor outlets. The temperature of the air to
the oor will be warmer than the air to the upper outlets.
7(Floor):Turn the control to this position so that most
of the air is directed to the oor outlets with some air
directed to the outboard outlets, side window outlets,
and defroster outlet.
W(Defog):Turn the control to this position so that air
is directed between the windshield and oor outlets,
with some air going to the outboard outlets and
side window outlets. More information of defogging
can be found later in this section.
0(Defrost):Turn the control to this position so
that most of the air is directed to the windshield with
some air going to the side window outlets. More
information on defrosting can be found later in this
section.
O(On/Off):Press this button to turn the climate
control system on or off. While off, adjusting any button or
control, except recirculation and rear window defog turns
the system back on. The air inlets default to outside air
when the climate control system is turned off.
3-24

PASS (Passenger’s Climate Control):Press this
button to turn the passenger’s climate control system on
or off. Then press the up or down buttons to choose the
desired setting. Pressing the button again automatically
sets the passengers temperature to the drivers setting.
Turning the passenger’s temperature display off does not
turn off the climate control system for the passenger.
Recirculation Operation
There are three options for bringing air into the
climate control system. They are controlled by
pressing the center button on the climate control panel.
The climate control display indicates one of the following
three modes:
9(Auto Air Inlet):This mode lets the automatic
climate control system choose the best air inlet position
for cooling or warming the vehicle. To have full automatic
climate control, the fan and mode controls must be set to
the AUTO position. Generally, recirculation will only
automatically be selected on hot days.Your vehicle may have an optional Air Quality Sensor.
To activate the air quality sensor, the auto air inlet setting
must be used. For more information, see Air Quality
Sensor found later in this section.
?(Recirculation):This mode recirculates air inside
the vehicle and keeps outside air from coming into
the vehicle. It can be used to help cool the vehicle more
quickly or to prevent odors from entering the vehicle.
Recirculation is not available in the defrost mode.
It is also cancelled when oor or defog mode is selected.
In some conditions using recirculation for long periods
of time can cause the air inside the vehicle to become
too dry or stuffy. To prevent this from happening,
after the air in the vehicle has cooled, select auto
air inlet or outside air.
:(Outside Air):This mode pulls fresh air from
outside the vehicle. Outside air is always selected
in defrost mode to prevent fogging.
3-25

Air Quality Sensor:Your vehicle may have an air
quality sensor to help limit the climate control system
from pulling in irritating or harmful exhaust fumes from
other vehicles. This sensor, when active, monitors the
air quality in front of your vehicle and switches to air
recirculation when poor quality air is detected outside
your vehicle. The air quality sensor does not activate
due to organic odors like skunk, and may not activate on
many chemical-related odors. If you wish to limit these
types of odors, manually select recirculation.
To activate the air quality sensor, if your vehicle has one,
select the Auto Air Inlet on your climate control display.
The word AUTO is shown in the center of the display
under the outline shape of a vehicle. While the air quality
sensor senses poor quality air, the recirculation graphic
appears above the AUTO symbol.
Under some conditions, the air quality sensor system
does not operate. In cold weather, the system might
not be active (even if AUTO is displayed) because of
concerns of fogging your windows, which may occur by
activating recirculation mode. Also, the air quality sensorsystem does not remain in recirculation mode for
extended periods of time that could cause stuffy or very
dry conditions in the vehicle. Following a poorly running
vehicle for an extended period of time may not keep
recirculation active indenitely.
The air quality sensor system does not protect against
carbon monoxide (CO), which you cannot see or smell.
SeeEngine Exhaust on page 2-39.
Air Conditioning
#
(Air Conditioning):Press this button to turn the
air conditioning on or off, and override the automatic
system. When selecting the AUTO fan or AUTO mode,
the air conditioning compressor comes on automatically,
as necessary.
The air conditioning system removes moisture from the
air, so water might drip underneath the vehicle while
idling or after turning off the engine. This is normal.
3-26

Sensors
There is a solar sensor located on top of the instrument
panel, near the windshield.There is an interior
temperature sensor
located below the climate
control system next to
the steering wheel.
An ambient sensor is located behind the grille in front of
the vehicle.
These sensors help the climate control system
automatically control the temperature setting. The
system can 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.
Do not cover any of the sensors or the climate control
system might not work properly.
3-27

Defogging and Defrosting
Fog on the inside of windows is a result of high humidity
(moisture) condensing on the cool window glass.
This can be minimized if the climate control system
is used properly. There are two modes to clear fog
from the windshield.
W(Floor/Defog):Use this mode to clear the windows
of fog and warm the passengers. The system turns off
recirculation and runs the air conditioning compressor
unless the outside temperature is at or below freezing.
If recirculation mode is selected while using the defog
mode, the system recirculates air initially but returns to
the fresh air mode after 10 minutes.
0(Defrost):Use this mode to remove fog or frost
from the windshield more quickly. When selected, the
system turns off recirculation and runs the air conditioning
compressor, unless the outside temperature is at or
below freezing.
Do not drive the vehicle until all the windows are clear.
Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog or frost from the rear window.
<(Rear Defogger):Press the center of the right
control to turn the rear window defogger on or off.
Be sure to clear as much snow from the rear window
as possible. The rear window defogger turns off
about 20 minutes after the button is rst pressed if the
vehicle is moving at slower speeds. At higher vehicle
speeds, the rear defogger can stay on continuously.
Each additional press runs the defogger for about
10 minutes.
The heated outside rearview mirrors also heat to help
clear fog or frost from the surface of the mirror when the
rear window defogger is on.
Notice:Do not use a razor blade or sharp object to
clear the inside rear window. Do not adhere anything
to the defogger grid lines in the rear glass. These
actions may damage the rear defogger. Repairs
would not be covered by your warranty.
3-28