2005 CADILLAC CTS oil pressure

Malfunction Indicator Lamp.............................3-45
Oil Pressure Light.........................................3-48
Winter Driving Mode Light
(Automatic Transmission)............................3-48
Sport Mode Light (Automatic Transmission)......3-49
Security Light...............................................3-49
Fog Lamp Light............................................3-49
Lights On Reminder......................................3-49
Cruise Control Light......................................3-50
Highbeam On Light.......................................3-50
Fuel Gage...................................................3-50
Message Center.............................................3-51
Message Center (CTS-V)...............................3-51
Transmission Fluid Hot Message.....................3-55
Hot Coolant Temperature Warning Message.....3-55
Check Engine Oil Pressure Message...............3-56
Oil Temperature Warning Message..................3-56
Tire Pressure Warning Message.....................3-57Driver Information Center (DIC).......................3-57
System Controls...........................................3-58
Status of Vehicle Systems.............................3-58
DIC Main Menu............................................3-62
DIC Warnings and Messages.........................3-65
DIC Vehicle Personalization............................3-74
Audio System(s).............................................3-88
Setting the Time...........................................3-88
Radio with CD..............................................3-89
Navigation/Radio System..............................3-105
Theft-Deterrent Feature................................3-105
Audio Steering Wheel Controls (CTS)............3-105
Radio Reception.........................................3-106
Care of Your CDs.......................................3-107
Care of the CD Player.................................3-107
Diversity Antenna System.............................3-108
XM™ Satellite Radio Antenna System............3-108
Section 3 Instrument Panel
3-2

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.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 5-16for 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.
3-48

Speedometer Display
This display will show information relating to vehicle
speed, odometer, and transmission status. The
information displayed can be changed by pressing (C).
Pressing this button cycles the displayed information
as follows: digital speedometer only, odometer
only, speedometer and odometer, or blank display.
When the transmission is shifted into REVERSE (R), an
R will appear in the upper right corner.
During slow speed maneuvers, the engine’s computer
may command the transmission to engage the Skip Shift
feature. For more information seeManual Transmission
Operation on page 2-31.
Tachometer Display
Press (B) to cycle through the following displays:
coolant temperature, oil pressure, oil temperature,
transmission temperature, tire pressure, and lateral
acceleration. Press (A) to cycle through the displays in
reverse order. If you press (A) for about one second
the display will become blank.
Coolant Temperature
When the coolant
temperature is displayed
you will see the coolant
temperature symbol.
The temperature will be displayed in degrees Fahrenheit
or Celsius and there will be a graph at the bottom of
the display. If the graph shows the temperature in
the shaded area all the way on the right, then the
coolant temperature is hot. SeeEngine Overheating on
page 5-28for more information.
3-52

Oil Pressure
When the oil pressure is
displayed you will see the
oil pressure symbol.
The oil pressure will be displayed in psi or kPa and
there will be a graph at the bottom of the display. If the
graph shows the pressure in the shaded area all the
way to the left, then the oil pressure is low. SeeEngine
Oil on page 5-16andDIC Warnings and Messages
on page 3-65for more information.
Oil Temperature
When the oil temperature
is displayed you will see
the oil temperature symbol.The temperature will be displayed in degrees Fahrenheit
or Celsius and there will be a graph at the bottom of
the display. If the graph shows the temperature in
the shaded area all the way on the right, then the oil
temperature is hot. SeeEngine Oil on page 5-16
for more information.
Transmission Temperature
When the transmission
temperature is displayed
you will see the
transmission temperature
symbol.
The temperature will be displayed in degrees Fahrenheit
or Celsius and there will be a graph at the bottom of
the display. If the graph shows the temperature in
the shaded area all the way on the right, then the
transmission temperature is hot. SeeDIC Warnings and
Messages on page 3-65andManual Transmission
Fluid on page 5-24for more information.
3-53

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 3-48for 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 5-16
for more information.
3-56

Engine Power Reduced
This message informs you that the vehicle is reducing
engine power to try to protect the engine or transmission
from damage due to extreme operating conditions.
This also can affect the vehicle’s ability to accelerate.
Fuel Level Low
When this message appears on the display, it means
that your vehicle is low on fuel. You should rell the tank
as soon as possible. A single chime will sound when
this message is displayed.
Headlamps Suggested
This message will appear when the amount of available
light outside the vehicle is low and the exterior lamp
control is off. This message informs the driver that
turning on the exterior lamps is recommended even
though the daytime running lamps (DRL) are still
illuminated and it has become dark enough outside to
require the headlamps and/or other exterior lamps.
This message will also appear when the windshield
wipers have been on for more than six seconds and the
exterior lamp control is off or in the parking lamp
position.
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.
SeeEngine Oil on page 5-16for 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.
3-70

Once you are moving on the freeway, make certain you
allow a reasonable following distance.
Expect to move slightly slower at night.
When you want to leave the freeway, move to the
proper lane well in advance. If you miss your exit, do
not, under any circumstances, stop and back up. Drive
on to the next exit.
The exit ramp can be curved, sometimes quite sharply.
The exit speed is usually posted. Reduce your speed
according to your speedometer, not to your sense
of motion. After driving for any distance at higher
speeds, you may tend to think you are going slower
than you actually are.
Before Leaving on a Long Trip
Make sure you are ready. Try to be well rested. If you
must start when you are not fresh — such as after
a day’s work — do not plan to make too many miles that
rst part of the journey. Wear comfortable clothing
and shoes you can easily drive in.Is your vehicle ready for a long trip? If you keep it
serviced and maintained, it is ready to go. If it needs
service, have it done before starting out. Of course, you
will nd experienced and able service experts in GM
dealerships all across North America. They will be ready
and willing to help if you need it.
Here are some things you can check before a trip:
Windshield Washer Fluid:Is the reservoir full? Are
all windows clean inside and outside?
Wiper Blades:Are they in good shape?
Fuel, Engine Oil, Other Fluids:Have you checked
all levels?
Lamps:Are they all working? Are the lenses clean?
Tires:They are vitally important to a safe,
trouble-free trip. Is the tread good enough for
long-distance driving? Are the tires all inated to the
recommended pressure?
Weather Forecasts:What is the weather outlook
along your route? Should you delay your trip a
short time to avoid a major storm system?
Maps:Do you have up-to-date maps?
4-24

Service............................................................5-3
Doing Your Own Service Work.........................5-4
Adding Equipment to the Outside
of Your Vehicle...........................................5-5
Fuel................................................................5-5
Gasoline Octane............................................5-5
Gasoline Specications....................................5-5
California Fuel...............................................5-6
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-7
Filling the Tank..............................................5-8
Filling a Portable Fuel Container.....................5-10
Checking Things Under the Hood....................5-10
Hood Release..............................................5-11
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-16
Engine Oil Life System..................................5-19
Engine Air Cleaner/Filter................................5-21
Automatic Transmission Fluid.........................5-22
Manual Transmission Fluid.............................5-24
Hydraulic Clutch...........................................5-25
Engine Coolant.............................................5-25
Coolant Surge Tank Pressure Cap..................5-28
Engine Overheating.......................................5-28Overheated Engine Protection
Operating Mode........................................5-30
Cooling System............................................5-31
Power Steering Fluid.....................................5-36
Windshield Washer Fluid................................5-37
Brakes........................................................5-38
Battery........................................................5-41
Jump Starting...............................................5-42
Rear Axle.......................................................5-48
Bulb Replacement..........................................5-49
High Intensity Discharge (HID) Lighting............5-49
Halogen Bulbs..............................................5-49
Front Turn Signal and Fog Lamps...................5-50
Taillamps, Turn Signal, Stoplamps and
Sidemarker Lamps.....................................5-50
Back-Up and License Plate Lamps..................5-51
Replacement Bulbs.......................................5-52
Windshield Wiper Blade Replacement..............5-52
Tires..............................................................5-54
Tire Sidewall Labelling...................................5-56
Tire Terminology and Denitions.....................5-58
Run-Flat Tires (CTS-V)..................................5-61
Ination - Tire Pressure.................................5-62
Section 5 Service and Appearance Care
5-1