climate control CADILLAC STS 2008 1.G User Guide

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Other Warning Devices...................................3-6
Horn.............................................................3-6
Power Tilt Wheel and Telescopic
Steering Column.........................................3-7
Heated Steering Wheel...................................3-7
Turn Signal/Multifunction Lever.........................3-8
Turn and Lane-Change Signals........................3-8
Headlamp High/Low-Beam Changer..................3-9
Forward Collision Alert (FCA) System..............3-10
Flash-to-Pass...............................................3-13
Windshield Wipers........................................3-14
Rainsense™ II Wipers...................................3-15
Windshield Washer.......................................3-16
Headlamp Washer........................................3-16
Cruise Control..............................................3-17
Adaptive Cruise Control.................................3-20
Headlamps..................................................3-33
Wiper Activated Headlamps............................3-37Headlamps on Reminder................................3-37
Daytime Running Lamps (DRL).......................3-37
Fog Lamps..................................................3-39
Twilight Sentinel
®..........................................3-39
Exterior Lighting Battery Saver........................3-40
Instrument Panel Brightness...........................3-41
Entry Lighting...............................................3-41
Parade Dimming...........................................3-41
Reading Lamps............................................3-42
Battery Load Management.............................3-42
Electric Power Management...........................3-42
Inadvertent Power Battery Saver.....................3-43
Head-Up Display (HUD).................................3-43
Accessory Power Outlet(s).............................3-46
Ashtray(s) and Cigarette Lighter......................3-47
Climate Controls............................................3-48
Dual Climate Control System..........................3-48
Outlet Adjustment.........................................3-54
Rear Climate Control System.........................3-54
Passenger Compartment Air Filter...................3-55
Section 3 Instrument Panel
3-1

The main components of your instrument panel are the following:
A. Air Outlets. SeeOutlet Adjustment on page 3-54.
B. Instrument Panel Brightness Control. SeeInstrument
Panel Brightness on page 3-41. Driver Information
Center (DIC) Buttons. SeeDIC Operation and
Displays on page 3-74. HUD Controls (If Equipped).
SeeHead-Up Display (HUD) on page 3-43.
C. Turn Signal/Multifunction Lever. SeeTurn
Signal/Multifunction Lever on page 3-8.
Headlamp Controls. SeeHeadlamps on
page 3-33. Cruise Control. SeeCruise Control on
page 3-17. Adaptive Cruise Control (If Equipped).
SeeAdaptive Cruise Control on page 3-20.
Forward Collision Alert (FCA) (If Equipped).
SeeForward Collision Alert (FCA) System
on page 3-10.
D. Instrument Panel Cluster. SeeInstrument Panel
Cluster on page 3-58.
E. Windshield Wiper/Washer Lever. SeeWindshield
Wipers on page 3-14.
F. Audio System. SeeAudio System(s) on page 3-98.
Navigation/Radio System (If Equipped).
SeeNavigation/Radio System on page 3-117.G. Audio Steering Wheel Controls (If Equipped).
SeeAudio Steering Wheel Controls on page 3-121.
Adaptive Cruise Control Gap Button (If Equipped).
SeeAdaptive Cruise Control on page 3-20.
Heated Steering Wheel Button (If Equipped).
SeeHeated Steering Wheel on page 3-7.
H. Power Tilt Wheel and Telescopic Steering Column.
Power Tilt Wheel and Telescopic Steering Column
on page 3-7.
I. Horn. SeeHorn on page 3-6.
J. Ignition Switch. SeeIgnition Positions on page 2-28.
K. Climate Control System. SeeDual Climate
Control System on page 3-48.
L. Hazard Warning Flasher Button. SeeHazard
Warning Flashers on page 3-6.
M. Cupholders. SeeCupholder(s) on page 2-58.
N. Traction Control System Button. SeeTraction
Control System (TCS) on page 4-6.
O. Shift Lever. SeeAutomatic Transmission
Operation on page 2-32.
P. Glove Box. SeeGlove Box on page 2-58.
3-5

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.
Battery Load Management
The battery load management feature is designed to
monitor the vehicle’s electrical load and determine when
the battery is in a heavy discharge condition. During
times of high electrical loading, the engine may idle
at a higher revolutions per minute (rpm) setting
than normal to make sure the battery charges.
High electrical loads may occur when several of the
following are on: headlamps, high beams, fog lamps,
rear window defogger, the climate control fan at
high speeds, heated seats and engine cooling fans.If the battery continues to discharge, even with the
engine idling at a higher rpm setting, some electrical
loads will automatically be reduced. When this occurs,
the rear window defogger may take slightly longer
to clear the glass and the fan may cut back to a lower
speed. For more battery saving information, see
“Battery Saver Active Message” underDIC Warnings
and Messages on page 3-80.
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.
3-42

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 3-80.Inadvertent Power Battery Saver
This feature is designed to protect your vehicle’s battery
against drainage from the interior lamps, trunk lamp,
glove box lamp, or the garage door opener. When the
ignition is turned off, the power to these features will
automatically turn off after 10 minutes (three minutes if
a new car has 15 miles (24 km) or less). Power will
be restored for an additional 10 minutes if any door is
opened, the trunk is opened or the courtesy lamp switch
is turned on.
Head-Up Display (HUD)
{CAUTION:
If the HUD image is too bright, or too high in
your eld of view, it may take you more time
to see things you need to see when it is dark
outside. Be sure to keep the HUD image dim
and placed low in your eld of view.
For vehicles with the Head-Up Display (HUD), it projects
some of the driver information that appears on the
instrument panel cluster onto the windshield.
3-43

Notice:Leaving electrical equipment plugged in for
an extended period of time while the vehicle is off
will drain the battery. Power is always supplied
to the outlets. Always unplug electrical equipment
when not in use and do not plug in equipment
that exceeds the maximum 20 ampere rating.
Certain accessory power plugs may not be compatible
to the accessory power outlet and could result in
blown vehicle or adapter fuses. If you experience a
problem, see your dealer for additional information on
the accessory power outlets.
Notice:Adding any electrical equipment to your
vehicle may damage it or keep other components
from working as they should. The repairs would
not be covered by your warranty. Do not use
equipment exceeding maximum amperage rating
of 20 amperes. Check with your dealer/retailer
before adding electrical equipment.
Follow the proper installation instructions that are
included with any electrical equipment you install.
Notice:Improper use of the power outlet can
cause damage not covered by your warranty.
Do not hang any type of accessory or accessory
bracket from the plug because the power outlets
are designed for accessory power plugs only.Ashtray(s) and Cigarette Lighter
Your vehicle may have an ashtray and cigarette lighter.
Notice:If you put papers, pins, or other ammable
items in the ashtray, hot cigarettes or other smoking
materials could ignite them and possibly damage
your vehicle. Never put ammable items in the
ashtray.
Ashtray
For vehicles with an ashtray, it is located under the
climate control panel on the center console. Press
on the door to release the ashtray. The ashtray
automatically slides open for use.
To empty the ashtray with the ashtray in full open
position, locate the release button to the right of the ash
receiver and slide it to the right (in the direction of the
arrow). The ash receiver will unlock and lift slightly and
can then be easily removed from the housing. To replace
the ash receiver, place it into position in the ashtray
housing and push down rmly until it locks into place.
3-47

Cigarette Lighter
Notice:Holding a cigarette lighter in while it is
heating will not allow the lighter to back away from
the heating element when it is hot. Damage from
overheating may occur to the lighter or heating
element, or a fuse could be blown. Do not hold
a cigarette lighter in while it is heating. Do not use
equipment exceeding maximum amperage
rating of 15 amperes.
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.
Climate Controls
Dual Climate Control System
The heating, cooling, and ventilation can be controlled
for the vehicle with this system.
Automatic Operation
Vehicles With Heated and Ventilated Seats Shown,
Vehicles Without Similar
3-48

The mode switch can also be used to select the defog
mode. Information on defogging and defrosting can
be found later in this section.
yAz(Fan):Press this switch to increase or
decrease the fan speed. Pressing this switch cancels
automatic operation and allows the operator to manually
select the amount of airow. Press AUTO to return to
automatic operation.
If the airow seems low when the fan speed is at the
highest setting, the passenger compartment air lter
may need to be replaced. For more information,
seePassenger Compartment Air Filter on page 3-55
andScheduled Maintenance on page 6-4.
h(Recirculation):Press this button to control the
air source for the climate control system. If in AUTO
mode, press this button once to select recirculation.
This mode keeps outside air from coming in the vehicle
and recirculates the air in the vehicle. It can be used
to prevent outside air and odors from entering the
vehicle or to help cool the air inside the vehicle
more quickly.
Recirculation is not available in the defrost mode
and shuts off when defog mode is selected. Both of
these features are designed to limit fogging in the
vehicle. If recirculation is selected during defog mode,
it automatically turns off after 10 minutes to limit
problems with fogging.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 to
return to automatic climate control operation or push
the recirculation button again to select outside air.
Press this button a second time to select outside air.
:(Outside Air):This mode forces the system to
pull air from outside the vehicle. It can be used to bring
fresh air into the vehicle.
Air Quality Sensor:Your vehicle could have an air
quality sensor to help limit the climate control system
from pulling in some harmful exhaust fumes from older,
poorly running, or diesel-equipped vehicles that are
driving near you. 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. Press the AUTO button on the climate
control to activate the air quality sensor. The word AUTO
comes on the center of the climate control display.
While the air quality sensor senses poor quality air,
the recirculation graphic displays.
3-50

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
sensor system 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 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. Your vehicle
could also have a charcoal lter that can limit many
odors from being pulled into your vehicle. This
lter needs to be changed periodically. SeeScheduled
Maintenance on page 6-4. The air quality sensor
system does not protect against carbon monoxide (CO),
which you cannot see or smell. SeeEngine Exhaust
on page 2-38.
O(Power Driver’s Temperature):Press the power
button located on the driver’s side of the climate
control panel to turn the entire climate control system
on or off. Turn the knob to increase or decrease
the temperature inside the vehicle.
O(Power Passenger’s Temperature):Press the
power button located on the passenger’s side of
the climate control panel to turn the passenger’s climate
control system on if they wish to have a different
setting than the driver. Turn the knob to increase or
decrease the temperature for the front passenger.
Turning the passenger’s side power button off will not
shut off the climate control system for the passenger.
The system is set to the same setting as the driver.
{(Ventilated Seat):Press this button, to turn
on the driver or passenger’s side ventilated seat,
if the vehicle has this feature. SeeHeated and
Ventilated Seats on page 1-3.
J(Heated Seat):Press this button, to turn on the
driver or passenger’s side heated seat and seatback,
if the vehicle has this feature. SeeHeated and
Ventilated Seats on page 1-3.
^(Air Conditioning):Press this button to manually
turn off the air conditioning compressor. Press AUTO
to return to automatic operation. To limit fogging on
the windshield, the air conditioning compressor
cannot be off while in the defrost mode.
3-51

Sensors
There is a solar sensor located on the instrument panel,
near the windshield.
There is also an interior temperature sensor located
next to the steering wheel on the instrument panel.
These sensors monitor the solar radiation and the air
inside the vehicle, then use the information to adjust
the temperature, the fan speed and the air delivery
system, in order to maintain the selected temperature.The system may also supply cooler air to the side of the
vehicle facing the sun. Do not cover the sensors or the
automatic climate control system will not work properly.
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. Use the defog mode to clear the
windows of fog or moisture and warm the passengers.
Use the defrost mode to remove fog or frost from
the windshield more quickly.
yNz(Mode):Press this button until defog appears
on the display.
-(Defog):This mode directs the air between the
windshield and oor outlets with some air supplied to
the outboard panel outlets and side window defogging
outlets. When this mode is selected, the system turns off
recirculation and runs the air-conditioning compressor
unless the outside temperature is at or below freezing.
The recirculation mode is cancelled when the system
enters the defog mode. If recirculation is selected while
in the defog mode, it is cancelled after 10 minutes.
3-52

Outlet Adjustment
Use the lever located in the center of each outlet to
change the direction of the airow, either side-to-side
or up and down. Use the thumbwheels to open or close
the outlets to adjust the airow.
Turn the thumbwheel towards the vehicle door to open
the outlets and allow the maximum amount of air to
enter your vehicle. Turn the thumbwheel towards
the center console to close the outlets and minimize
the amount of air entering the vehicle.
Operation Tips

Clear away any ice, snow or leaves from the air
inlets at the base of the windshield that may
block the ow of air into your vehicle.
Use of non-GM approved hood deectors may
adversely affect the performance of the system.
Keep the path under the front seats clear of
objects to help circulate the air inside of your
vehicle more effectively.
If the airow seems low when the fan speed is at the
highest setting, the passenger compartment air lter
may need to be replaced. For more information, see
Passenger Compartment Air Filter on page 3-55.
Rear Climate Control System
Your vehicle has a rear climate control system.
The base model includes air outlets in the rear of
the center console for cooling and under-seat air
outlets for heating. The temperature, quantity, and
air delivery location is controlled automatically by
the front climate control system.
Some vehicles are equipped with an optional climate
control panel for the rear passenger, located on the
back of the center console.
The left knob controls the temperature of the air to
the rear passengers. Turning the knob to the left will
make the air cooler. Turning the knob to the right
will make the air warmer.
3-54