2004 CADILLAC CTS airbag

Servicing Your
Airbag-Equipped Vehicle
Airbags affect how your vehicle should be serviced.
There are parts of the airbag system in several places
around your vehicle. Your dealer and the service manual
have information about servicing your vehicle and the
airbag system. To purchase a service manual, see
Service Publications Ordering Information on page 7-11.
{CAUTION:
For up to 10 seconds after the ignition key is
turned off and the battery is disconnected, an
airbag can still inate during improper service.
You can be injured if you are to close to an
airbag when it inates. Avoid wires wrapped
with yellow tape, yellow coverings or yellow
connectors. They are probably part of the
airbag systems. Be sure to follow proper
service procedures, and make sure the person
performing work for you is qualied to do so.
The airbag system does not need regular maintenance.
Adding Equipment to Your
Airbag-Equipped Vehicle
Q:If I add a luggage carrier or sunroof to the roof
of my vehicle, will it keep the roof-mounted side
impact airbags from working properly?
A:As long as the luggage carrier or sunroof is
properly installed so that the vehicle’s basic
structure is not changed, it is not likely to keep the
roof-mounted side impact airbags from working
properly in a crash.
1-58

Restraint System Check
Checking Your Restraint Systems
Now and then, make sure the safety belt reminder light
and all your belts, buckles, latch plates, retractors
and anchorages are working properly. Look for any other
loose or damaged safety belt system parts. If you see
anything that might keep a safety belt system from doing
its job, have it repaired.
Torn or frayed safety belts may not protect you in a
crash. They can rip apart under impact forces. If a belt
is torn or frayed, get a new one right away.
Also look for any opened or broken airbag covers, and
have them repaired or replaced. (The airbag system
does not need regular maintenance.)
Replacing Restraint System Parts
After a Crash
{CAUTION:
A crash can damage the restraint systems in
your vehicle. A damaged restraint system
may not properly protect the person using it,
resulting in serious injury or even death in a
crash. To help make sure your restraint
systems are working properly after a crash,
have them inspected and any necessary
replacements made as soon as possible.
If you have had a crash, do you need new belts or
LATCH system parts?
After a very minor collision, nothing may be necessary.
But if the belts were stretched, as they would be if
worn during a more severe crash, then you need
new parts.
1-59

If the LATCH system was being used during a more
severe crash, you may need new LATCH system parts.
If belts are cut or damaged, replace them. Collision
damage also may mean you will need to have LATCH
system, safety belt or seat parts repaired or replaced.
New parts and repairs may be necessary even if the belt
or LATCH system was not being used at the time of
the collision.
If an airbag inates, you will need to replace airbag
system parts. See the part on the airbag system earlier
in this section.If the frontal airbags inate, you will also need to
replace the driver’s and right front passenger’s safety
belt buckle assembly. Be sure to do so. Then the
new buckle assembly will be there to help protect you in
a collision.
After a crash you may need to replace the driver and
front passenger’s safety belt buckle assemblies, even if
the frontal airbags have not deployed. The driver
and front passenger’s safety belt buckle assemblies
contain the safety belt pretensioners. Have your safety
belt pretensioners checked if your vehicle has been
in a collision, or if your airbag readiness light stays on
after you start your vehicle or while you are driving.
SeeAirbag Readiness Light on page 3-42.
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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

Airbag Readiness Light
There is an air bag readiness light on the instrument
panel, which shows the air bag symbol. The system
checks the air bag’s electrical system for malfunctions.
The light tells you if there is an electrical problem.
The system check includes the air bag sensors, the air
bag modules, the wiring and the diagnostic module.
For more information on the air bag system, seeAirbag
Systems on page 1-48.
This light will come on
when you start your
vehicle, and it will ash for
a few seconds. Then the
light should go out. This
means the system is ready.
If the air bag readiness light stays on after you start the
vehicle or comes on when you are driving, your air
bag system may not work properly. Have your vehicle
serviced right away.{CAUTION:
If the airbag readiness light stays on after you
start your vehicle, it means the airbag system
may not be working properly. The airbags in
your vehicle may not inate in a crash, or they
could even inate without a crash. To help
avoid injury to yourself or others, have your
vehicle serviced right away if the airbag
readiness light stays on after you start
your vehicle.
The air bag readiness light should ash for a few
seconds when you turn the ignition key to ON. If the
light doesn’t come on then, have it xed so it will
be ready to warn you if there is a problem.
If there is a problem with the air bag system in your
vehicle, the Service Air Bag message will appear on the
DIC display. SeeDIC Warnings and Messages on
page 3-70for more information.
3-42

Service Air Bag
This symbol appears
with the Service Air
Bag message.
There is a problem with the airbag system when this
message appears. Have your vehicle serviced by your
GM dealer immediately. SeeAirbag Readiness Light
on page 3-42for more information.
Service Charging System
This symbol appears with
the Service Charging
System message.
This message will display when a problem with the
charging system has been detected. Have your vehicle
serviced by your GM dealer.
Service Electrical System
This symbol appears with
the Service Electrical
System message.
This message will display if an electrical problem has
occurred within the Powertrain Control Module (PCM) or
the ignition switch. Have your vehicle serviced by
your GM dealer.
Service Fuel System
This symbol appears
with the Service Fuel
System message.
The Powertrain Control Module (PCM) has detected a
problem within the fuel system when this message
appears. Have your vehicle serviced by your GM dealer.
3-81

Doing Your Own Service Work
If you want to do some of your own service work,
you will want to use the proper service manual. It tells
you much more about how to service your vehicle
than this manual can. To order the proper service
manual, seeService Publications Ordering Information
on page 7-11.
Your vehicle has an air bag system. Before attempting
to do your own service work, seeServicing Your
Airbag-Equipped Vehicle on page 1-58.
You should keep a record with all parts receipts and list
the mileage and the date of any service work you
perform. SeeMaintenance Record on page 6-16.{CAUTION:
You can be injured and your vehicle could be
damaged if you try to do service work on a
vehicle without knowing enough about it.
Be sure you have sufficient knowledge,
experience, the proper replacement parts
and tools before you attempt any vehicle
maintenance task.
Be sure to use the proper nuts, bolts and
other fasteners. English and metric
fasteners can be easily confused. If you
use the wrong fasteners, parts can later
break or fall off. You could be hurt.
5-4

Electrical System
Add-On Electrical Equipment
Notice:Don’t add anything electrical to your
vehicle unless you check with your dealer rst.
Some electrical equipment can damage your vehicle
and the damage wouldn’t be covered by your
warranty. Some add-on electrical equipment can
keep other components from working as they should.
Your vehicle has an air bag system. Before attempting to
add anything electrical to your vehicle, seeServicing
Your Airbag-Equipped Vehicle on page 1-58.
Windshield Wiper Fuses
The windshield wiper motor is protected by an internal
circuit breaker. If the wiper motor overheats due to
heavy snow, the wipers will stop until the motor cools
and will then restart.
Power Windows and Other
Power Options
Circuit breakers protect the power windows and power
seats. When the current load is too heavy, the circuit
breaker opens and closes, protecting the circuit until the
problem is xed or goes away.
Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected from
short circuits by a combination of fuses and circuit
breakers. This greatly reduces the chance of res
caused by electrical problems.
Look at the silver-colored band inside the fuse. If the
band is broken or melted, replace the fuse. Be sure you
replace a bad fuse with a new one of the identical
size and rating. If a fuse blows, see your dealer
for service immediately.
If you ever have a problem on the road and don’t have
a spare fuse, you can “borrow” one that has the
same amperage. Pick some feature of your vehicle that
you can get along without – like the radio or cigarette
lighter – and use its fuse, if it is the correct amperage.
Replace it as soon as you can.
The fuses are located in three fuse blocks, one located
in the engine compartment on the passenger’s side
and the other two under the rear seat.
5-100