2004 CADILLAC CTS horn

At times you may notice a decrease in range. This is
normal for any remote keyless entry system. If the
transmitter does not work or if you have to stand closer
to your vehicle for the transmitter to work, try this:
Check the distance. You may be too far from your
vehicle. You may need to stand closer during
rainy or snowy weather.
Check the location. Other vehicles or objects may
be blocking the signal. Take a few steps to the
left or right, hold the transmitter higher, and
try again.
Check to determine if battery replacement is
necessary. See “Battery Replacement” under
Remote Keyless Entry System Operation on
page 2-5.
If you are still having trouble, see your dealer or a
qualied technician for service.
Remote Keyless Entry
System Operation
With this feature, you can lock and unlock the doors or
the trunk and turn on your vehicle’s interior lamps
from about 10 feet (3 m) away using the remote keyless
entry transmitter supplied with your vehicle.
Q(Lock):Press this
symbol on the remote
keyless entry transmitter
to lock the doors.
This also arms the
theft-deterrent system.
You can program your vehicle so that the exterior lamps
will ash and/or the horn will sound when you lock
the doors with the remote keyless entry transmitter.
SeeDIC Vehicle Personalization on page 3-88for more
information on programming this feature.
If your vehicle is programmed for remote conrmation,
the doors must be closed for this feature to work. If
a door is open, remote conrmation will be canceled.
2-5

W(Unlock):Press this symbol on the remote keyless
entry transmitter to unlock the driver’s door. This
also disarms the theft-deterrent system. Press the
button again to unlock the rest of the doors.
You can program your vehicle so that the exterior lamps
will ash when you unlock the doors with the remote
keyless entry transmitter. SeeDIC Vehicle
Personalization on page 3-88for more information on
programming this feature.
If your vehicle is programmed for remote conrmation,
the doors must be closed for this feature to work. If
a door is open, remote conrmation will be canceled.
L(Panic Alarm):The remote keyless entry transmitter
comes equipped with an instant panic alarm. Press
the horn symbol when the ignition is turned off. The horn
will sound and the exterior lamps will ash for up to
30 seconds. To stop the instant panic alarm, press the
symbol again or turn the ignition to ON.
V(Trunk):Press this button to open the trunk.
The remote keyless entry transmitter can be used to
recall the memory settings for up to two drivers.
For more information, seeDIC Vehicle Personalization
on page 3-88andMemory Seat and Mirrors on
page 2-53.
Matching Transmitter(s) to
Your Vehicle
Each remote keyless entry transmitter is coded to
prevent another transmitter from unlocking your vehicle.
If a transmitter is lost or stolen, a replacement can
be purchased through your dealer. Remember to bring
any remaining transmitters with you when you go to
your dealer. When the dealer matches the replacement
transmitter to your vehicle, any remaining transmitters
must also be matched. Once your dealer has coded the
new transmitter, the lost transmitter will not unlock
your vehicle. Each vehicle can have a maximum of four
transmitters matched to it.
Battery Replacement
Under normal use, the battery in your remote keyless
entry transmitter should last about four years.
You can tell the battery is weak if the transmitter won’t
work at the normal range in any location. If you have
to get close to your vehicle before the transmitter works,
it’s probably time to change the battery.
Notice:When replacing the battery, use care not
to touch any of the circuitry. Static from your
body transferred to these surfaces may damage
the transmitter.
2-6

Theft-Deterrent Systems
Vehicle theft is big business, especially in some cities.
Although your vehicle has a number of theft-deterrent
features, we know that nothing we put on it can make it
impossible to steal.
Theft-Deterrent System
If your vehicle has this
feature, the security light is
located on the instrument
panel cluster.
If the ignition is off and a door is open, the security
light will ash, reminding you to arm the
theft-deterrent system.
To arm the system, do the following:
1. Lock the door using the remote keyless entry
transmitter or the power door lock switch.
2. Close all the doors. The security light will illuminate.
It should go off within approximately 30 seconds.
Your security system is now armed.If a door or a trunk is opened without a key or a remote
keyless entry transmitter, the horn will sound and the
lamps will ash for up to 30 seconds.
The theft-deterrent system won’t arm if you lock the
doors with a key or use the manual door lock. It
activates only if you use the remote keyless entry
transmitter or the power lock on the door.
To avoid activating the alarm by accident do
the following:The vehicle should be locked with the door key or
the manual door lock after the doors are closed if
you don’t want to arm the theft-deterrent system.
Always unlock a door with a key or use the remote
keyless entry transmitter. Pressing the unlock
button on the remote keyless entry transmitter
disables the theft-deterrent system. Unlocking a
door any other way will activate the alarm when a
door or the trunk is opened.
If you activate the alarm by accident, unlock the driver’s
door with your key. You can also turn off the alarm by
using the unlock button on the remote keyless entry
transmitter, or by starting the vehicle with a valid key.
2-18

Testing the Alarm
1. From inside the vehicle, roll down the window, then
get out of the vehicle, keeping the door open.
2. From outside of the vehicle, with the door open,
lock the vehicle using the power door lock switch
or the remote keyless entry transmitter and
close the door. Wait approximately 30 seconds until
the security light goes off.
3. Reach in and unlock the door using the manual
lock and open the door. The horn will sound and
the exterior lamps will ash.
You can turn off the alarm by unlocking the driver’s door
with your key, using the unlock button on the remote
keyless entry transmitter or by starting the car with
a valid key.
If the alarm does not sound when it should, check to
see if the horn works. The horn fuse may be blown. To
replace the fuse, seeFuses and Circuit Breakers on
page 5-100. If the fuse does not need to be replaced, you
may need to have your vehicle serviced.
To reduce the possibility of theft, always arm the
theft-deterrent system when leaving your vehicle.
Immobilizer
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
1. this device may not cause interference, and
2. this device must accept any interference
received, including interference that may cause
undesired operation.
This device complies with RSS-210 of Industry Canada.
Operation is subject to the following two conditions:
1. this device may not cause interference, and
2. this device must accept any interference received,
including interference that may cause undesired
operation of the device.
Changes or modications to this system by other than
an authorized service facility could void authorization to
use this equipment.
2-19

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Other Warning Devices...................................3-7
Horn.............................................................3-7
Tilt Wheel.....................................................3-7
Recongurable Steering Wheel
Controls (SWC) (CTS).................................3-8
Turn Signal/Multifunction Lever.......................3-10
Windshield Wiper Lever.................................3-21
Cruise Control..............................................3-23
Exterior Lamps.............................................3-24
Interior Lamps..............................................3-26
Accessory Power Outlets...............................3-27
Ashtrays and Cigarette Lighter........................3-28
Climate Controls............................................3-29
Dual Climate Control System..........................3-29
Outlet Adjustment.........................................3-34
Passenger Compartment Air Filter...................3-35
Steering Wheel Climate Controls (CTS)............3-36
Warning Lights, Gages, and Indicators............3-37
Instrument Panel Cluster................................3-38
Speedometer and Odometer...........................3-40
Tachometer.................................................3-41Safety Belt Reminder Light.............................3-41
Airbag Readiness Light..................................3-42
Charging System Light..................................3-43
Brake System Warning Light..........................3-43
Anti-Lock Brake System Warning Light.............3-44
Traction Control System (TCS)
Warning Light...........................................3-45
Engine Coolant Temperature
Warning Light (CTS)..................................3-45
Engine Coolant Temperature Gage..................3-46
Tire Pressure Light (CTS-V) ...........................3-46
Malfunction Indicator Lamp.............................3-47
Oil Pressure Light.........................................3-49
Winter Driving Mode Light
(Automatic Transmission)............................3-50
Sport Mode Light (Automatic Transmission)......3-50
Security Light...............................................3-51
Fog Lamp Light............................................3-51
Lights On Reminder......................................3-51
Cruise Control Light......................................3-52
Highbeam On Light.......................................3-52
Fuel Gage...................................................3-52
Section 3 Instrument Panel
3-1

Other Warning Devices
If you carry reective triangles, you can set one up at
the side of the road about 300 feet (100 m) behind
your vehicle.
Horn
Press on the pad near the horn symbols on the steering
wheel to sound the horn.
Tilt Wheel
A tilt wheel allows you to adjust the steering wheel
before you drive. You can raise it to the highest level
to give your legs more room when you exit and enter
the vehicle.The lever that allows you to tilt the steering wheel is
located on the left side of the steering column.
To tilt the wheel, hold the steering wheel and pull the
lever. Then move the steering wheel to a comfortable
position and release the lever to lock the wheel in place.
3-7

You can select this feature by itself, or you can combine
it with Horn Sounds At Lock so that both the lights
ash and the horn chirps when you lock your vehicle.
The mode you selected is now set. You can either
exit the programming mode by following the instructions
later in this section or program the next feature
available on your vehicle.
Horn Sounds at Lock
This feature sounds the horn once when the remote
keyless entry transmitter is used to lock the vehicle.
All doors must be closed for this feature to work.
Programmable Modes
Mode 1:ON
Mode 2:OFF
Before your vehicle was shipped from the factory, it was
programmed to Mode 2. The mode to which the
vehicle was programmed may have been changed since
it left the factory. To program the vehicle to a different
mode, use one of the following procedures:
To change the mode using the Base audio system,
do the following:
1. Enter the personalization portion of the SETUP
menu following the instructions listed previously.
2. Scroll to HORN SOUNDS AT LOCK to highlight it.3. Press the TUNE/SEL knob to switch back and forth
between on and off.
When the mode is turned on, a check mark will
appear next to the feature name.
To change the mode using the Navigation system,
do the following:
1. Enter the Personalization menu following the
instructions listed previously.
2. Scroll to Remote Keyless Options to highlight it.
3. Press the TUNE/SEL knob to view the modes.
4. Scroll to Horn Sounds At Lock and press the knob
once to select it.
When the mode is turned on, an X will appear in
the box to the left.
If you select this feature to be on, Lights Flash At Lock
will also be on. You can choose Lights Flash At Lock
by itself, but Horn Sounds At Lock will always have
Lights Flash At Lock enabled when it is selected.
The mode you selected is now set. You can either exit
the programming mode by following the instructions
later in this section or program the next feature available
on your vehicle.
3-98

Relays Usage
HORN RELAY
MICROHorn
HI BEAM
RELAY MICROHigh-Beam Headlamps
DRL RELAY
MICRO-OPTDaytime Running Lamps
LO BEAM
RELAY/HID
MINI-OPTLow-Beam HID Headlamps
HDLP WASH
RELAY MINI-OPTHeadlamp Washer Motor
SPARE Not Used
BLOWER
RELAY MINIFront Blower
FOG LAMP
RELAY MICROFog Lamps
MAIN RELAY
MICROPowertrain/ECM
STARTER
RELAY MINIStarter Solenoid
CMP CLU
RELAY MICROCompressor Clutch
IGN-1 RELAY
MICROIgnition Switch (ON)Wiring
HarnessesUsage
BODY W/H Wiring Harness Connection
I/P W/H Wiring Harness Connection
ENG W/H Engine Wiring Harness Connection
FORWARD
LAMPForward Lamp Wiring Harness
Connection
J Cases Usage
R REARRRPDB (Passenger’s Side Rear
Power Distribution Box)
R REARRRPDB (Passenger’s Side Rear
Power Distribution Box)
L REARLRPDB (Driver’s Side Rear Power
Distribution Box)
L REARLRPDB (Driver’s Side Rear Power
Distribution Box)
HI FAN High Cooling Fan Motor
LO FAN Low Cooling Fan Motor
BLOWER PWM Fan Motor Assembly
STARTER Starter Solenoid
ABS Anti-Lock Brake System
5-102