light CADILLAC CTS 2004 1.G Workshop Manual

Emissions Inspection and
Maintenance Programs
Some state/provincial and local governments have or
may begin programs to inspect the emission control
equipment on your vehicle. Failure to pass this
inspection could prevent you from getting a
vehicle registration.
Here are some things you need to know to help your
vehicle pass an inspection:
Your vehicle will not pass this inspection if the check
engine light is on or not working properly.
Your vehicle will not pass this inspection if the OBD
(on-board diagnostic) system determines that critical
emission control systems have not been completely
diagnosed by the system. The vehicle would be
considered not ready for inspection. This can happen if
you have recently replaced your battery or if your battery
has run down. The diagnostic system is designed to
evaluate critical emission control systems during normal
driving. This may take several days of routine driving.
If you have done this and your vehicle still does not pass
the inspection for lack of OBD system readiness, your
GM dealer can prepare the vehicle for inspection.
Oil Pressure Light
{CAUTION:
Do not keep driving if the oil pressure is low.
If you do, your engine can become so hot that
it catches re. You or others could be burned.
Check your oil as soon as possible and have
your vehicle serviced.
Notice:Lack of proper engine oil maintenance may
damage the engine. The repairs would not be
covered by your warranty. Always follow the
maintenance schedule in this manual for changing
engine oil.
This light tells you if there
could be a problem with
your engine oil pressure.
3-49

The light goes on when you turn your key to ON or
START. It goes off once you start your engine. That’s a
check to be sure the light works. If it doesn’t come
on, be sure to have it xed so it will be there to warn
you if something goes wrong.
When the light comes on and stays on, it means
that oil isn’t owing through your engine properly.
You could be low on oil and you might have some
other system problem. SeeEngine Oil on page 5-18
for more information.
Winter Driving Mode Light
(Automatic Transmission)
This light will come on
when the winter driving
mode feature is in use.
When you turn off the winter driving mode feature, the
light will go out. If it stays on, your vehicle may need
service. See your dealer. See “Winter Driving Mode”
underAutomatic Transmission Operation on page 2-26
for more information.
Sport Mode Light
(Automatic Transmission)
This light will come on
while the sport mode
is in use.
When you turn off the sport mode, the light will
go out. If it stays on, your vehicle may need service.
See your dealer. See “Sport Mode” under
Automatic Transmission Operation on page 2-26
for more information.
3-50

Security Light
For information
regarding this light,
seeTheft-Deterrent
System on page 2-18.
Fog Lamp Light
This light will come on
when the fog lamps
are in use.
The light will go out when the fog lamps are turned off.
See “Fog Lamps” underTurn Signal/Multifunction
Lever on page 3-10for more information.
Lights On Reminder
This light comes on whenever the parking lamps are on.
See “Headlamps On Reminder” underTurn Signal/
Multifunction Lever on page 3-10for more information.
CTSCTS-V
3-51

Cruise Control Light
This light comes on
whenever you set your
cruise control.
The light will go out when the cruise control is
turned off. SeeCruise Control on page 3-23for
more information.
Highbeam On Light
This light comes on
whenever the high-beam
headlamps are on.
See “Headlamp High/Low-Beam Changer” under
Turn Signal/Multifunction Lever on page 3-10for
more information.
Fuel Gage
The fuel gage shows
approximately how much
fuel is in the tank. It works
only when the ignition
is in ON.
If the fuel supply gets low, the Fuel Level Low message
will appear on the DIC and a single chime will sound.
SeeDIC Warnings and Messages on page 3-70
for more information.
CTS shown,
CTS-Vsimilar
3-52

Transmission Fluid Hot Message
When you see this ashing
symbol, the transmission
uid temperature is
high (290°F (143°C)).
To acknowledge this warning, press either button on the
outboard switch on the left spoke of the steering wheel.
After you press this button, the warning will redisplay
every 10 minutes until the temperature returns to the
normal operating range. If this message appears, you
may continue to drive at a slower speed while monitoring
the transmission uid temperature. Ideally, the
transmission oil temperature should not rise above
265°F (129°C). If you regularly experience temperatures
above this limit due to high performance operation, it is
recommended to use an auxiliary uid cooler for the
transmission and differential. See your Cadillac dealer for
details. If this warning is displayed during normal vehicle
operation on at roads, your vehicle may need service.
See your dealer for an inspection. SeeDIC Warnings and
Messages on page 3-70andManual Transmission Fluid
on page 5-27for more information.
Hot Coolant Temperature
Warning Message
When you see this ashing
symbol, the engine coolant
temperature is high
(257°F (125°C)).
To acknowledge this warning, press either button on the
outboard switch on the left spoke of the steering
wheel. After you press a button, this warning will
redisplay every 10 minutes until the temperature returns
to the normal operating range. Driving aggressively
or driving on long hills can cause the engine coolant
temperature to be higher than normal. Display of
this warning should correspond with the Engine Coolant
Temperature Warning Light. SeeEngine Coolant
Temperature Warning Light (CTS) on page 3-45for
more information. If this warning is displayed during
normal vehicle operation on at roads, your vehicle may
need service. See your dealer for an inspection.
3-57

Check Engine Oil Pressure Message
When you see this ashing
symbol, the engine oil
pressure is low.
To acknowledge this warning, press either button on the
outboard switch on the left spoke of the steering
wheel. After you press this button, the warning will
redisplay every 10 minutes until the pressure returns to
the normal operating range. Oil pressure should be
20 to 80 psi (140 to 550 kPa). In certain situations such
as long, extended idles on hot days, it could read as
low as 6 psi (40 kPa) and still be considered normal.
It may vary with engine speed, outside temperature and
oil viscosity. This warning should correspond with the
Oil Pressure Light. SeeOil Pressure Light on page 3-49
for more information.
Oil Temperature Warning Message
When you see this ashing
symbol, the engine oil
temperature is high.
To acknowledge this warning press either button on the
outboard switch on the left spoke of the steering
wheel. After you press a button, the warning will
redisplay every 10 minutes until the temperature returns
to the normal operating range. Driving aggressively
or driving on long hills can cause the engine oil
temperature to be higher than normal. If this warning is
displayed during normal vehicle operation on at
roads, your vehicle may need service. See your
GM dealer for an inspection. SeeEngine Oil on
page 5-18for more information.
3-58

Tire Pressure Warning Message
When you see this ashing
symbol, one or more of the
vehicle’s tires is either
under or over-inated.
To acknowledge this warning, press either button on the
outboard switch on the left spoke of the steering
wheel. There are three levels of warning for this display:
1. High Tire Pressure (above 42 psi (290 kPa))
2. Low Tire Pressure (below 25 psi (170 kPa))
3. Flat Tire (below 5 psi (35 kPa))For conditions 1 and 2, this warning will ash ve times
and the display will then show the tire pressure gage.
For condition 3, this warning will ash continuously until
the driver acknowledges it. In any of the three cases,
the warning will redisplay every 10 minutes until
the situation is corrected. Conditions 2 and 3 will also
display a warning light elsewhere on the cluster that will
stay illuminated after this warning is acknowledged.
SeeTire Pressure Light (CTS-V) on page 3-46for more
information. Also seeTire Pressure Monitor System
(CTS-V) on page 5-70for more information on tire
pressure specications.
3-59

Driver Information Center (DIC)
The DIC gives you the status of many of your vehicle’s
systems. It is also used to display driver personalization
features and warning/status messages. All messages
will appear on the audio system display which is also the
display for the Navigation system.
System Controls
If you have the Base audio system, use the following to
operate the DIC:
INFO (Information):Use the up or down arrows on this
switch to scroll through the system status information.
CLR (Clear):Press this button to clear DIC messages
and to reset DIC items to zero. This button is also
used to exit out of a menu. SeeDIC Warnings and
Messages on page 3-70andStatus of Vehicle Systems
on page 3-61for more information.
TUNE/SEL (Select) Knob:Once a menu is displayed,
use the knob located to the lower right of the display to
scroll through the menu items and/or select them.
To scroll through the menu items, turn the knob. Once
an item is highlighted, press the knob once to select it.
Base Audio System
3-60

If you have the Navigation system, use the following to
operate the DIC:
INFO (Information):Use this button to access the
Vehicle Information menu that provides the status
of various vehicle systems. See “Vehicle Information
Menu (Navigation System)” underStatus of Vehicle
Systems on page 3-61.TUNE/SEL (Select) Knob:See the information listed
previously on this knob. It is equivalent to the TUNE/SEL
knob on the Base audio system and is located in the
same place.
Press the button with the circle on it when it is next to a
menu item or a prompt on the right side of the display
to select the menu item or acknowledge the prompt. See
“Status Menu Item Descriptions” underStatus of
Vehicle Systems on page 3-61.
Status of Vehicle Systems
You can view the status of several vehicle systems
using the DIC. Depending upon whether or not
your vehicle has the Navigation system, the menu items
will vary slightly. Navigation/Audio System
3-61

SEEK 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. Your choice will be set when you press
BACK and return to 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 using this menu item.
Press the TUNE/SEL knob to switch between on
and off.
You can also turn the traction control system off using the
traction control button located in the glove box, or by
programming one of the steering wheel controls
(1, 2, 3 or 4) or audio system softkeys to enable/disable
the TCS. SeeRecongurable Steering Wheel Controls
(SWC) (CTS) on page 3-8and “Congurable Radio
Display Keys” underAudio System(s) on page 3-107for
more information.
When you disable the traction control system, the
Traction Suspended message will appear on the DIC and
the traction control system warning light on the instrument
panel cluster will come on. SeeDIC Warnings and
Messages on page 3-70andTraction Control System
(TCS) Warning Light on page 3-45for more information.
8(Clock):Use this menu item to set the time on
the clock.
SeeSetting the Time on page 3-108for
more information.
3-69