2007 CADILLAC CTS climate control

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.
Passenger Compartment Air Filter
The passenger compartment air lter traps most of
the pollen from the air entering your vehicle.
Like your vehicle’s engine air cleaner/lter, it needs
to be changed periodically. SeeScheduled
Maintenance on page 462.
Using the climate control system without the
passenger air lter installed may allow water or
other debris to enter the system. This could cause
a water leak or noises. Make sure to install a
new air lter after removing the old one.The passenger compartment air lter is located
underneath the hood below the windshield
wiper arm on the passenger’s side of the vehicle.
SeeEngine Compartment Overview on page 342
for more information on location.
Use the procedure listed below to replace the
passenger compartment air lter:
1. Turn the ignition to ON with the engine off.
2. Turn on the windshield wipers and turn them
off again when the wipers are straight on the
windshield.
This allows you access to the leaf screen.
The passenger compartment air lter is
located under the leaf screen.
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3. Open the hood to access the engine
compartment. SeeHood Release on page 341
for more information.
4. Remove the four screws that hold the leaf
screen in place and lift off the screen by
lifting and sliding toward the center of
the vehicle.
5. Pull out on the two tabs located on each end
of the lter cover.
6. Lift the lter cover off by pulling it straight
upward.
7. Remove the old lter and insert a new one.
Make sure the arrow on the lter is pointing
toward the passenger compartment.
SeeNormal Maintenance Replacement Parts
on page 475for the correct part number
for the lter.
8. Reverse Steps 1 through 6 to reinstall
the cover.Steering Wheel Climate
Controls (CTS)
Your vehicle may have four controls that can be
programmed for use with the climate control
system.
The controls are located
on the left side of the
steering wheel.
SeeRecongurable Steering Wheel Controls
(SWC) (CTS) on page 169for more information on
programming these controls.
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See “Activating Category (CAT) Stations (RDS
and XM™)” underRadio with CD on page 260for
more information.
ASEEK LOCAL/DISTANT:This feature instructs
the audio system to seek only local radio stations
with the strongest signal or to seek all radio stations
with a strong signal in a large area. Use LOCAL
when you are in urban areas where there are
several strong radio station signals and you want to
limit the number of stations to those with the
strongest signals only. Use DISTANT when you are
in rural areas where there are fewer radio station
signals available.
To switch between LOCAL and DISTANT, press
the TUNE/SEL knob. Once your choice is
displayed, turn the knob to set your choice and
continue scrolling through the main menu.
9(English/Metric Units):Use this menu item
to adjust the measurement units.
You can choose between ENGLISH UNITS and
METRIC UNITS. To switch between the two, press
the TUNE/SEL knob. Once your choice is
displayed, turn the knob to set your choice and
continue scrolling through the main menu.The measurement units that you choose will be
reected on all the vehicle system displays,
not just the DIC information. For example, the
climate control panel will display degrees Celsius
if you choose METRIC UNITS.
TCS (Traction Control System):You can enable
or disable the Traction Control System (TCS)
using this menu item. Press the TUNE/SEL knob
to switch between on and off.
You can also turn the TCS off using the traction
control button located in the glove box (CTS) or on
the steering wheel (CTS-V), or by programming
one of the steering wheel controls (1, 2, 3, or 4) or
audio system soft keys to enable/disable the
TCS. SeeRecongurable Steering Wheel Controls
(SWC) (CTS) on page 169and “Congurable
Radio Display Keys” underRadio with CD
on page 260for more information.
When you disable the TCS, the traction control
system warning light on the instrument panel
cluster will come on. SeeTraction Control System
(TCS) Warning Light on page 206for more
information.
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Battery Saver Active
This message appears when the system detects
that the battery voltage is dropping beyond a
reasonable level. The battery saver system will
start reducing certain features of the vehicle which
you may be able to notice. At the point that the
features are disabled, this message is displayed. It
means that the vehicle is trying to save the
charge in the battery.
Turn off all unnecessary accessories to allow the
battery to recharge.
The normal battery voltage range is
11.5 to 15.5 volts. You can monitor battery voltage
on the DIC by pressing the INFO button until
BATTERY VOLTS appears.
Battery Voltage High
This message indicates that the electrical charging
system is overcharging the battery. When the
system detects that the battery voltage is above
an estimated 16 volts, this message will be
displayed.To reduce the charging overload, use the vehicle’s
accessories. Turn on the exterior lamps and
radio, set the climate control on AUTO and the fan
speed on the highest setting, and turn the rear
window defogger on.
The normal battery voltage range is
11.5 to 15.5 volts when the engine is running. You
can monitor battery voltage on the DIC by pressing
the INFO button until BATTERY VOLTS appears.
Battery Voltage Low
This message will appear when the electrical
system is charging less than 10 volts or if
the battery has been drained.
If this message appears immediately after starting
the engine, it is possible that the generator can
still recharge the battery. The battery should
recharge while driving but may take a few hours to
do so. Consider using an auxiliary charger to
boost the battery after returning home or to a nal
destination. Make sure you follow the
manufacturer’s instructions.
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Ice Possible
This message appears when the outside
temperature is cold enough to create icy road
conditions.
Left Rear Door Ajar
When this message appears on the display, it
means that the driver’s side rear door was
not closed completely. You should make sure that
the door is closed completely.
Oil Pressure Low – Stop Engine
Notice:If you drive your vehicle while the
engine oil pressure is low, severe engine
damage may occur. If a low oil pressure
warning appears on the instrument panel
cluster and/or DIC, stop the vehicle as soon as
possible. Do not drive the vehicle until the
cause of the low oil pressure is corrected. See
Engine Oil on page 346for more information.
Passenger Door Ajar
When this message appears on the display, it
means that the passenger’s side front door was
not closed completely. You should make sure that
the door is closed completely.
Right Rear Door Ajar
When this message appears on the display, it
means that the passenger’s side rear door was not
closed completely. You should check to make
sure that the door is closed completely.
Service AC (Air Conditioning) System
This message appears when the electronic
sensors that control the air conditioning and
heating systems are no longer working. Have the
climate control system serviced by your dealer
if you notice a drop in heating and air conditioning
efficiency.
Service Air Bag
There is a problem with the airbag system when
this message appears. Have your vehicle serviced
by your dealer immediately. SeeAirbag Readiness
Light on page 201for more information.
Service Brake Assist
This message will display when a problem with
the panic brake assist system has been detected.
Have your vehicle serviced by your dealer.
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On all vehicles, features such as climate control
settings, radio preset settings, exterior lighting
at unlock, remote lock and unlock conrmation,
and automatic door locks have already been
programmed for your convenience.
Some vehicles have additional features that can
be programmed including the seat and outside
rearview mirror position.
If your vehicle has the ability to program additional
personalization features, the driver’s preferences
are recalled by pressing the unlock button on
the Remote Keyless Entry (RKE) transmitter,
1 or 2, or by pressing the appropriate memory
button, 1 or 2, located on the driver’s door. Certain
features can be programmed not to recall until
the key is placed in the ignition. To change feature
preferences, see “Entering the Personalization
Menu” following.Entering the Personalization Menu
To enter the feature programming mode, use the
following procedure:
1. Turn the ignition to ON, but do not start the
engine. Make sure an automatic transmission
is in PARK (P) or a manual transmission
has the parking brake set.
To avoid excessive drain on the battery, it is
recommended that the headlamps are
turned off.
2. If your vehicle has memory settings, press the
appropriate memory button, 1 or 2, located on
the driver’s door armrest. The DIC display
will show either Driver 1 or 2 depending
on which button was selected.
3. Press the PWR/VOL knob to turn the radio on.
4. Press the TUNE/SEL knob once to access the
main menu of the DIC.
5. Turn the TUNE/SEL knob until SETUP is
highlighted.
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If you get the Engine Coolant Hot - Idle Engine
warning with no sign of steam, try this for a minute
or so:
1. In heavy traffic, let the engine idle in
NEUTRAL (N) while stopped. If it is safe to do
so, pull off the road, shift to PARK (P) or
NEUTRAL (N) and let the engine idle.
2. Set the climate controls to the highest heat
setting and fan speed and open the windows,
as necessary.
If you no longer have the Engine Coolant
Hot - Idle Engine warning, you can drive. Just to
be safe, drive slower for about 10 minutes. If
the warning does not come back on, you can
drive normally.
If the warning continues and you have not
stopped, pull over, stop, and park your vehicle
right away.
If there is still no sign of steam, you can idle the
engine for three minutes while you are parked.
If you still have the warning,turn off the engine
and get everyone out of the vehicleuntil it
cools down.
You may decide not to lift the hood but to get
service help right away.Overheated Engine Protection
Operating Mode
This operating mode allows your vehicle to be
driven to a safe place in an emergency. Should an
hot engine condition exist, an overheat protection
mode which alternates ring groups of cylinders
helps prevent engine damage. In this mode, there
is a loss in power and engine performance.
Driving extended miles (km) and/or towing a trailer
in the overheat protection mode should be
avoided.
Notice:After driving in the overheated engine
protection operating mode, to avoid engine
damage, allow the engine to cool before
attempting any repair. The engine oil will be
severely degraded. Repair the cause of coolant
loss and change the oil. SeeEngine Oil on
page 346.
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While the tires available on General Motors
passenger cars and light trucks may vary with
respect to these grades, they must also conform
to federal safety requirements and additional
General Motors Tire Performance Criteria (TPC)
standards.
Treadwear
The treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specied
government test course. For example, a tire
graded 150 would wear one and a half (1.5) times
as well on the government course as a tire
graded 100. The relative performance of tires
depends upon the actual conditions of their use,
however, and may depart signicantly from
the norm due to variations in driving habits, service
practices, and differences in road characteristics
and climate.
Traction – AA, A, B, C
The traction grades, from highest to lowest, are AA,
A, B, and C. Those grades represent the tire’s
ability to stop on wet pavement as measured under
controlled conditions on specied government test
surfaces of asphalt and concrete. A tire marked C
may have poor traction performance.
Warning:The traction grade assigned to this tire
is based on straight-ahead braking traction
tests, and does not include acceleration, cornering,
hydroplaning, or peak traction characteristics.
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