2011 CADILLAC STS air conditioning

Black plate (5,1)Cadillac STS Owner Manual - 2011
Vehicle Symbol Chart
Here are some additional symbols that may be found on
the vehicle and what they mean. For more information
on the symbol, refer to the Index.
9:Airbag Readiness Light
#:Air Conditioning
!:Antilock Brake System (ABS)
g:Audio Steering Wheel Controls or OnStar®
$: Brake System Warning Light
":Charging System
I:Cruise Control
B: Engine Coolant Temperature
O:Exterior Lamps
#:Fog Lamps
.: Fuel Gauge
+:Fuses
3: Headlamp High/Low-Beam Changer
j:LATCH System Child Restraints
*: Malfunction Indicator Lamp
::Oil Pressure
}:Power
/:Remote Vehicle Start
>:Safety Belt Reminders
7:Tire Pressure Monitor
F:Traction Control
M:Windshield Washer Fluid
v

Black plate (15,1)Cadillac STS Owner Manual - 2011
Climate Controls
The heating, cooling, and ventilation can be controlled
for the vehicle with this system.
Vehicles With Heated and Ventilated Seats Shown,Vehicles Without Similar
A. Driver and Passenger Side Power Buttons
B. Ventilated Seat
C. AUTO
D. Air Recirculation E. Air Conditioning F. Heated Seat
G. Fan Control H. Defrost
I. Rear Window Defogger
J. Air Delivery Mode Control
See Dual Climate Control System
on page 4‑43and
Rear Climate Control System on page 4‑49.
Transmission
Driver Shift Control (DSC)
Driver Shift Control (DSC) allows you to shift an
automatic transmission similar to a manual
transmission. To use the DSC feature:
1. Move the shift lever to the right from D (Drive) into the DSC area.
The vehicle will be in sport mode. It will remain in
sport mode if the shift lever is not moved forward
or rearward. Sport mode will shift the transmission
automatically but remain in a gear longer than
it would in D (Drive) based on braking and
acceleration.
1-15

Black plate (43,1)Cadillac STS Owner Manual - 2011
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
A. Driver and Passenger Side Power Buttons
B. Ventilated Seat
C. AUTO
D. Recirculation E. Air Conditioning F. Heated Seat
G. Fan Control H. Defrost I. Rear Window Defogger
J. Air Delivery Mode Control AUTO (Automatic):
The system automatically controls
the fan speed, air delivery, air conditioning and
recirculation modes in order to heat or cool the vehicle
to the desired temperature.
To place the system in automatic mode:
1. Press the AUTO button.
2. Adjust the temperature to a comfortable setting, generally, between 21°C (70°F) and 27°C (80°F).
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, the system will try to
continuously heat the vehicle and will not adjust
the system down as the vehicle warms up.
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
floor, 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.
4-43

Black plate (45,1)Cadillac STS Owner Manual - 2011
-(Defog): This mode clears the windows of fog or
moisture. Air is directed to the windshield and floor
outlets, with some air directed to the side windows
and outboard panel 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 the defog mode, it is cancelled after
10 minutes.
If there is fogging on the side windows, remain in defog
or defrost mode until they clear.
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 and outboard
panel outlets. The air-conditioning compressor runs
automatically in this setting, unless the outside
temperature is at or below freezing. Recirculation
cannot be selected while in the defrost mode.
This mode can also cause the fan speed and air
temperature to increase. ^
(Air Conditioning): Press to turn the air conditioning
off. 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.
h (Recirculation): Press once to select recirculation
mode or twice to select outside air. If in AUTO mode,
press
honce to select recirculation. This 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.
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.
Using the recirculation for long periods of time might
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, press the recirculation button
again to select outside air or press the AUTO button.
4-45

Black plate (80,1)Cadillac STS Owner Manual - 2011
ENGINE COOLANT HOT IDLE ENGINE
Notice:If you drive your vehicle while the engine is
overheating, severe engine damage may occur. If an
overheat warning appears on the instrument panel
cluster and/or DIC, stop the vehicle as soon as
possible. Do not increase the engine speed above
normal idling speed. See Engine Overheating
on
page 6‑30for more information.
This symbol appears
with this message.
This message displays when the engine coolant
temperature is too hot. Stop and allow the vehicle to
idle until it cools down. See Engine Coolant
Temperature Warning Light on page 4‑61.
See Overheated Engine Protection Operating Mode
on
page 6‑32for information on driving to a safe place in
an emergency.
ENGINE HOT –AC
(Air Conditioning) OFF
This message displays when the engine coolant
becomes hotter than the normal operating temperature.
See Engine Coolant Temperature Gauge
on
page 4‑61. To avoid added strain on a hot engine, the
air conditioning compressor is automatically turned off.
When the coolant temperature returns to normal, the air
conditioning compressor turns back on. You can
continue to drive your vehicle.
If this message continues to appear, have the system
repaired by your dealer as soon as possible to avoid
damage to the engine.
ENGINE POWER REDUCED
This message displays when the engine power is
being reduced to protect the engine from damage.
There could be several malfunctions that might cause
this message. Reduced engine power can affect the
vehicle's ability to accelerate. If this message is on, but
there is no reduction in performance, proceed to your
destination. The performance may be reduced the
next time the vehicle is driven. The vehicle may be
driven at a reduced speed while this message is on, but
acceleration and speed may be reduced. Anytime this
message stays on, take the vehicle to your dealer for
service as soon as possible.
4-80

Black plate (85,1)Cadillac STS Owner Manual - 2011
PRESS START AND BRAKE TO START
ENGINE
This message displays when you need to press down
on the brake pedal while pressing the start button on
the electronic keyless ignition when trying to start your
vehicle. SeeStarting the Engine
on page 3‑27for more
information.
RADAR CRUISE NOT READY
This message displays when the Adaptive Cruise
Control system is not activating due to a temporary
condition. Your vehicle does not require service. This
message also displays when either of the following
conditions occur:
.The driver turns off the head-up display (HUD)
while the Adaptive Cruise Control is engaged.
.The driver attempts to engage the Adaptive Cruise
Control while the HUD is off.
If this message appears when attempting to activate the
system, continue driving for several minutes and then
try activating the system again.
RIGHT REAR DOOR AJAR
This symbol appears
with this message.
This message displays when the passenger side rear
door is not closed completely. Make sure that the door
is closed completely.
SERVICE AC
(Air Conditioning) SYSTEM
This message displays 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 a drop in heating and air
conditioning efficiency is noticeable.
4-85

Black plate (55,1)Cadillac STS Owner Manual - 2011
(B) Tire Width:The three‐digit number indicates
the tire section width in millimeters from sidewall
to sidewall.
(C) Aspect Ratio
:A two‐digit number that
indicates the tire height‐to‐width measurements.
For example, if the tire size aspect ratio is 60, as
shown in item C of the illustration, it would mean
that the tire's sidewall is 60 percent as high as it
is wide.
(D) Construction Code
:A letter code is used to
indicate the type of ply construction in the tire.
The letter R means radial ply construction; the
letter D means diagonal or bias ply construction;
and the letter B means belted‐bias ply
construction.
(E) Rim Diameter
:Diameter of the wheel in
inches.
(F) Service Description
:These characters
represent the load index and speed rating of the
tire. The load index represents the load carrying
capacity a tire is certified to carry. The speed
rating is the maximum speed a tire is certified to
carry a load.
Tire Terminology and Definitions
Air Pressure:The amount of air inside the tire
pressing outward on each square inch of the tire.
Air pressure is expressed in pounds per square
inch (psi) or kilopascal (kPa).
Accessory Weight
:This means the combined
weight of optional accessories. Some examples of
optional accessories are, automatic transmission,
power steering, power brakes, power windows,
power seats, and air conditioning.
Aspect Ratio
:The relationship of a tire's height to
its width.
Belt
:A rubber coated layer of cords that is
located between the plies and the tread. Cords
may be made from steel or other reinforcing
materials.
Bead
:The tire bead contains steel wires wrapped
by steel cords that hold the tire onto the rim.
Bias Ply Tire
:A pneumatic tire in which the plies
are laid at alternate angles less than 90 degrees
to the centerline of the tread.
6-55

Black plate (117,1)Cadillac STS Owner Manual - 2011
The underhood fuse block is located in the front of the
engine compartment on the passenger side of the
vehicle. SeeEngine Compartment Overview
on
page 6‑13for more information on location and
removal procedure for the front compartment underhood
sights shields.
To access the fuses, push in the tabs located on each
side of the fuse block cover, then lift the cover off.
Notice: Spilling liquid on any electrical component
on the vehicle may damage it. Always keep the
covers on any electrical component.
Fuses JCase Usage
ABS MTR ABS Module- ABS Module-Stabilitrak AFS Active Front Steering
BLWR Blower Motor
FAN 1 Cooling Fan-Low Speed
FAN 2 Cooling Fan-High Speed
LPDB 1 Driver Side Rear Fuse Block
LPDB 2 Driver Side Rear Fuse Block
RPDB 1 Passenger Side Rear Fuse Block
RPDB 2 Passenger Side Rear Fuse Block
Fuses JCase Usage
SPARE Spare
SPARE Spare
STRTR Starter
Fuses MiniUsage
A/C CLTCH Air Conditioning Compressor Clutch
ABS ABS Module-Stabilitrak
ABS IGN Antilock Brake Controller
AUX OUTLET Rear Accessory Power Outlet BRK
VAC PUMP Brake Vacuum Pump
CCP Climate Control Panel
CCP/RLY COILS Climate Control Panel, Headlamp
Level Control, Active Cruise Control,
Relay Coils, Starter, Front Blower
ECM 1 Engine Control Module (ECM)
ECM/TCM BATT ECM, Transmission Control
Module (TCM)
ECM/TCM IGN ECM, TCM, Instrument Panel Cluster
6-117