2009 CADILLAC CTS Owners Manual

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 bring the charge back up. 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 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,
BATTERY VOLTAGE LOW, or LOW BATTERY. 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 3-58.
3-21

Battery Run-Down Protection
This feature helps to prevent battery drain if accessory
lamps are left on. If accessory lamps such as the
vanity mirror, cargo, reading, console, or glove box
are left on, they automatically time-out after about
20 minutes. To reset the battery protection, all of the
above lamps must be turned off or the ignition must be
in the ACC/ACCESSORY position.
Accessory Power Outlet(s)
Accessory power outlets can be used to connect
auxiliary electrical equipment, such as a cellular
telephone.
There are three accessory power outlets. There is an
outlet located in the front storage area below the climate
control system, one inside the center console storage
bin, and one on the rear of the center console.
To use an outlet, remove the protective cap. When not
in use, always cover the outlet with the protective cap.
The accessory power outlet is operational at all times.Notice:If electrical devices are left plugged into
a power outlet, the battery may drain causing
the vehicle not to start or damage to the battery.
This would not be covered by the warranty.
Always unplug all electrical devices when turning
off the vehicle.
Certain electrical accessories may not be compatible
with the accessory power outlet and could result
in blown vehicle or adapter fuses. If you experience
a problem see your dealer/retailer for additional
information on accessory power outlets.
Notice:Adding any electrical equipment to the
vehicle can damage it or keep other components
from working as they should. The repairs would not
be covered by the vehicle warranty. Do not use
equipment exceeding maximum amperage rating of
20 amperes. Check with your dealer/retailer before
adding electrical equipment.
Notice:Improper use of the power outlet can cause
damage not covered by the 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.
3-22

Ashtray(s) and Cigarette Lighter
The vehicle may have two removable ashtrays and
cigarette lighters. One ashtray can be placed into the
instrument panel storage compartment and the other
into the center console rear compartment. To use
the lighter, push it in all the way and let go. When it is
ready, it will pop back out by itself.
To empty the ashtrays, hold on to the edges of the bin
and pull straight out. To reinstall, push the tray back
into place.
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.
Notice:If papers, pins, or other ammable items
are put in the ashtray, hot cigarettes or other
smoking materials could ignite them and possibly
damage the vehicle. Never put ammable items
in the ashtray.
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 buttons directly below the
clock face.
2. Push and hold the right adjustment button to move
the clock hands forward or the left adjustment
button to make the clock hands go backward.
Holding either button down will cause the clock to
advance faster. Release the button before the
desired time is reached.
3. Push and release either button to adjust the time by
one minute increments until the desired time is
reached.
3-23

Climate Controls
Dual Climate Control System
The heating, cooling, and ventilation for the vehicle can
be controlled with this system.
A. Display
B. Fan Control
C. Power
D. AUTO
E. PASS (Passenger
Climate Control)
F. Defrost
G. Air Delivery Mode
ControlH. Temperature Control
and Heated Seat
I. Air Conditioning
J. Recirculation/
Outside Air
K. Heated Windshield
Washer
L. Rear Window
Defogger
Automatic Operation
AUTO (Automatic):The system automatically controls
fan speed, air delivery, and air conditioning in order
to heat or cool the vehicle to the desired temperature.
When the indicator light is on, the system is in full
automatic operation. If the air delivery mode or fan
setting is manually adjusted, the auto indicator turns
off and displays will show the selected settings.
1. Press the AUTO button.
2. Adjust the temperature to a comfortable setting
between 70°F (21°C) and 80°F (27°C).
Choosing the coldest or warmest temperature setting
will not cause the system to heat or cool any faster.
If the system is set at the warmest temperature
setting, it remains in manual mode at that
temperature and it will not go into automatic mode.
To avoid blowing cold air in cold weather, the system
delays turning on the fan until warm air is available.
The system starts out blowing air at the oor, but can
automatically change modes as the vehicle warms
up to maintain the chosen temperature setting.
The length of time needed for warm up depends on
the outside temperature and the length of time that
has elapsed since the vehicle was last driven.
3. Wait for the system to regulate. This may take from
10 to 30 minutes. Then adjust the temperature, if
necessary.
3-24

English can be changed to metric units through the
Driver Information Center (DIC). SeeDIC Vehicle
Customization on page 3-72.
Q/R(Temperature Control):The temperature can be
adjusted separately for the driver and the passenger.
Press to increase or decrease the automatic temperature
settings.
PASS (Passenger Climate Control):Press to set a
different temperature for the passenger. Then adjust
the passenger temperature buttons to a comfortable
setting.
Pressing the PASS button again automatically sets the
passenger’s temperature to the driver’s setting.
Turning the passenger’s temperature display off does
not shut the passenger’s climate control system off.
Manual Operation
O(Power):Press to turn the climate control system on
or off. When the climate control system is turned off
the air inlet defaults to outside air.
DC(Fan Control):Press the buttons to increase or
decrease the fan speed. Pressing either button cancels
automatic operation and the system goes into manual
mode. Press AUTO to return to automatic operation.
The blower may reduce during an Onstar
®session
to limit background noise.
If the airow seems low when the fan speed is at the
highest setting, the passenger compartment air
lter might need to be replaced. For more information,
seePassenger Compartment Air Filter on page 3-29
andScheduled Maintenance on page 6-4.
HG(Air Delivery Mode Control):Press the buttons to
change the direction of the airow. The current mode
appears in the display screen. Changing the mode
cancels the automatic operation and the system goes
into manual mode. Press AUTO to return to automatic
operation.
3-25

The outboard air outlets always receive some airow in
every mode, except defrost.
To change the current mode, select one of the following:
Y(Vent):Air is directed to the instrument panel outlets.
\(Bi-Level):Air is divided between the instrument
panel outlets and the oor outlets. In automatic
operation, cooler air is directed to the upper outlets
and warmer air to the oor outlets.
[(Floor):Air is directed to the oor outlets, with
some air directed to the windshield and outboard outlets.
-(Defog):This mode clears the windows of fog or
moisture. Air is directed to the windshield, oor and side
window 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. If recirculation is selected while in defog mode,
it is cancelled after 10 minutes.
0(Defrost):This mode clears the windshield of fog
or frost more quickly. Air is directed to the windshield,
with some air directed to the side windows. In this mode,
the system automatically turns off recirculation and runs
the air-conditioning compressor, unless the outside
temperature is at or below freezing.
This mode can also cause the fan speed and air
temperature to increase.
#(Air Conditioning):Press to turn the air conditioning
system on or off and override the automatic system.
When in AUTO, the air conditioning compressor comes
on automatically, as needed.
The air conditioning system removes moisture from
the air, so a small amount of water might drip under the
vehicle while idling or after turning off the engine.
This is normal.
3-26

M/F(Recirculation/Outside Air):Press this
button to switch between recirculation and outside
air modes. The indicator light comes on to show which
mode is being used. The recirculation mode recirculates
and helps to quickly cool the air inside the vehicle.
It can be used to prevent outside air and odors from
entering the vehicle. Press the auto button to have
the system select the best air delivery mode for
the temperature setting.
Recirculation is not available in the defrost mode and
automatically turns off 10 minutes after defog is selected.
This helps to limit window fogging in the vehicle.
Using recirculation for long periods of time could 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 outside air or press the auto button.
The outside air mode pulls fresh air from outside the
vehicle. Outside air is always selected in defrost mode to
prevent fogging.Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog or frost from the rear window. It only works
when the ignition is in ON/RUN.
=(Rear Window Defogger):Press to turn the rear
window defogger on or off.
The rear window defogger stays on for about 15 minutes,
before turning off if the vehicle is moving at a slower
speed. At higher speeds, the rear window defogger may
stay on continuously. With each additional press, the
defogger runs for about 10 minutes. The defogger can
also be turned off by turning off the engine.
The heated outside rearview mirrors turn on when the
rear window defogger button is on and helps to clear
fog or frost from the surface of the mirror. SeeOutside
Heated Mirrors on page 2-53.
Notice:Do not try to clear frost or other material
from the inside of the front windshield and rear
window with a razor blade or anything else that is
sharp. This may damage the rear window defogger
grid and affect your radio’s ability to pick up
stations clearly. The repairs wouldn’t be covered
by your warranty.
3-27

Heated and Ventilated Seats:Press to heat or
ventilate the seat. SeeHeated and Ventilated Seats
on page 1-7.
_(Heated Windshield Washer, If Equipped):
For more information, seeWindshield Washer on
page 3-12.
Remote Start Climate Control Operation:For
vehicles with remote vehicle start feature and it is
activated, the climate control system heats and cools
the inside of the vehicle using the previous settings
of the system before the vehicle was turned off.
SeeRemote Vehicle Start on page 2-14.
The windshield defroster and/or rear window defogger
turn on if it is cold outside. If the vehicle has heated
seats, they turn on if the temperature inside the
vehicle is cooler than 54°F (12.5°C) or if the outside
temperature is cooler than 48°F (9°C).
Sensors
The solar sensor located
on the instrument panel,
near the windshield,
monitors the solar heat.
The interior temperature
sensor located on the
instrument panel to
the right of the steering
wheel, measures the
temperature of the
air inside the vehicle.
3-28