2004 CADILLAC CTS oil change

Speedometer Display
This display will show information relating to vehicle
speed, odometer, and transmission status. The
information displayed can be changed by pressing the
upper button on the inboard switch on the left spoke
of the steering wheel. 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 2-33.
Tachometer Display
Press the lower button on the outboard switch to cycle
through the following displays: coolant temperature,
oil pressure, oil temperature, transmission temperature,
tire pressure, and lateral acceleration. Press the
upper button on the outboard switch to cycle through
the displays in reverse order. If you press and hold the
upper button 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 5-31for more information.
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Instantaneous Fuel Economy
Fuel Used*
Average Vehicle Speed*
Timer*
Battery Voltage
Engine Oil Life*
Transmission Fluid Life* (Automatic Transmission
Only)
Blank Display
* These items can be reset. Each one must be reset
individually. For a detailed description of the menu items
and how to reset them, see “Vehicle Information
Menu Item Descriptions” following.
You can view any of these submenu items at any time
by selecting them using the TUNE/SEL knob. The
currently selected item is displayed at the top of the
screen. Only one item can be displayed at a time.
Vehicle Information Menu
Item Descriptions
The following paragraphs contain a more detailed
description of each menu item:
BLANK LINE/Blank Display:If you select this item,
nothing is displayed at the top of the screen.
OUTSIDE TEMP/Outside Air Temperature:If you
select this item, the current outside temperature
is displayed at the top of the screen. It will be in either
degrees Fahrenheit or degrees Celsius depending
upon whether the system is set for English or metric
units. If you wish to change the units on the Base audio
system, seeDIC Main Menu on page 3-66.Ifyou
have the optional Navigation System and wish to change
the units, see “Setup Menu” in the Index of the CTS
Entertainment and Navigation System owner’s manual.
MI TRIP A and B/Trip Odometer A and B:For
information on the trip odometers, see “Trip Odometers”
underSpeedometer and Odometer on page 3-40.
MPG AVG/Average Fuel Economy:If you select this
item, the approximate average miles per gallon (mpg) or
liters per 100 kilometers (L/100 km) is displayed.
This number is calculated based on the number of
mpg (L/100 km) recorded since the last time this menu
item was reset.
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To reset the Average Vehicle Speed using the Navigation
system, press and hold the multifunction button that
corresponds to the Reset prompt in the upper right of the
display. The display will return to zero.
TIMER/Timer:If you select this item, a timing feature is
displayed. The timer functions like a stopwatch in that
you can record the time it takes to travel from one point
to another.
To use the timer, you must rst turn it on. To turn on the
timer using the Base audio system, press the CLR button
located to the right of the screen once. To turn on the
timer using the Navigation system, press the
multifunction button next to the On/Off menu item in the
upper right of the display. The display for both systems
will read 00:00:00 TIMER ON and begin counting.
Press the button(s) again to turn the timer off. When the
timer is off, the display will show the timer value and
TIMER OFF. The timing feature will stop.
To reset the timer using the Base audio system, turn off
the timer and then press and hold the CLR button. The
display will return to zero.
To reset the timer using the Navigation system press and
hold the multifunction button next to the Reset prompt in
the upper right of the display. The display will return
to zero.BATTERY VOLTS/Battery Voltage:If you select this
item, the current battery voltage is displayed. If the
voltage is in the normal range, the display will have OK
after it. For example, the display may read 13.2 Battery
Volts OK.
If there is a problem with the battery charging system,
there are four possible DIC messages that may be
displayed. SeeDIC Warnings and Messages on
page 3-70for more information.
ENGINE OIL LIFE/Engine Oil Life:If you select this
item, the percentage of remaining oil life is displayed.
If you see 99% Oil Life on the display, that means
that 99% of the current oil life remains.
When the oil life is depleted, the Change Engine Oil
message will appear on the display. SeeEngine Oil on
page 5-18andScheduled Maintenance on page 6-4
for more information.
When you reset the Change Engine Oil message by
clearing it from the display, you still must reset the
engine oil life monitor separately. For more information
on resetting the engine oil life monitor, seeEngine
Oil on page 5-18.
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Change Engine Oil
This symbol appears
with the Change Engine
Oil message.
This message indicates that the life of the engine oil
has expired and it should be changed and that
your vehicle is due for service. SeeEngine Oil on
page 5-18andScheduled Maintenance on page 6-4for
more information.
When you reset the Change Engine Oil message by
clearing it from the display, you still must reset the
engine oil life monitor separately. For more information
on resetting the engine oil life monitor, seeEngine
Oil on page 5-18.
Change Trans (Transmission) Fluid
(Automatic Transmission)
This symbol appears
with the Change Trans
Fluid message.
This message indicates that the life of the transmission
uid has expired and it should be changed within
200 miles. SeeScheduled Maintenance on page 6-4
andRecommended Fluids and Lubricants on page 6-13
for the proper uid and change intervals.
When you reset the Change Trans Fluid message by
clearing it from the display, you still must reset the
transmission uid life monitor separately. For more
information on resetting the transmission uid life
monitor, seeAutomatic Transmission Fluid on page 5-25.
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SAE 5W-30
As shown in the viscosity chart, SAE 5W-30 is best
for your vehicle. However, you can use SAE 10W-30
if it is going to be 0°F (–18°C) or above.
These numbers on an oil container show its
viscosity, or thickness. Do not use other viscosity oils
such as SAE 20W-50.
Oils meeting these
requirements should also
have the starburst
symbol on the container.
This symbol indicates
that the oil has been
certied by the American
Petroleum Institute (API).
You should look for this on the oil container, and use
onlythose oils that are identied as meeting GM
Standard GM4718M and have the starburst symbol on
the front of the oil container.
Your vehicle’s engine is lled at the factory with a
Mobil 1
®synthetic oil, which meets all requirements
for your vehicle.Substitute Engine Oil: When adding oil to maintain
engine oil level, oil meeting GM Standard GM4718M may
not be available. You can add substitute oil designated
SAE 5W-30 with the starburst symbol at all temperatures.
If temperatures are above 0°F (–18°C), you may
substitute SAE 10W-30 with the starburst symbol.
Substitute oil not meeting GM Standard GM4718M
should not be used for an oil change.
Engine Oil Additives
Do not add anything to your oil. The recommended oils
with the starburst symbol that meet GM Standard
GM4718M are all you will need for good performance
and engine protection.
When to Change Engine Oil
(GM Oil Life System)
Your vehicle has a computer system that lets you know
when to change the engine oil and lter. This is
based on engine revolutions and engine temperature,
and not on mileage. Based on driving conditions,
the mileage at which an oil change will be indicated
can vary considerably. For the oil life system to
work properly, you must reset the system every time
the oil is changed.
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When the system has calculated that oil life has been
diminished, it will indicate that an oil change is
necessary. A Change Engine Oil message in the DIC
will come on. Change your oil as soon as possible within
the next two times you stop for fuel. It is possible that,
if you are driving under the best conditions, the oil
life system may not indicate that an oil change is
necessary for over a year. However, your engine oil and
lter must be changed at least once a year and at
this time the system must be reset. Your dealer has
GM-trained service people who will perform this
work using genuine GM parts and reset the system. It is
also important to check your oil regularly and keep it
at the proper level.
If the system is ever reset accidentally, you must
change your oil at 3,000 miles (5 000 km) since your
last oil change. Remember to reset the oil life system
whenever the oil is changed.
How to Reset the Change Engine Oil
Message and the Oil Life Indicator
The GM Oil Life System calculates when to change
your engine oil and lter based on vehicle use.
Anytime your oil is changed, reset the system so it can
calculate when the next oil change is required. If a
situation occurs where you change your oil prior to a
Change Engine Oil Message in the DIC being turned on,
reset the system.After the oil has been changed, the Change Engine Oil
message and the oil life indicator must be reset.
To reset the message and indicator, use one of the
following procedures:
Base Audio System
Press the CLR button located to the right of the DIC
display to acknowledge the Change Engine Oil
message. This will clear the message from the display
and reset it.
To reset the oil life indicator, use the following steps:
1. Press the up or down arrow on the INFO button
located to the right of the DIC display to access
the DIC menu.
2. Once XXX% ENGINE OIL LIFE menu item is
highlighted, press and hold the CLR button.
The percentage will return to 100, and the oil life
indicator will be reset. Repeat the steps if the
percentage does not return to 100.
3. Turn the key to OFF.
If the Change Engine Oil message comes back on
when you start your vehicle, the engine oil life system
has not reset. Repeat the procedure.
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Navigation System
Press the multi-function button, next to the OK prompt
in the upper right of the display to acknowledge the
Change Engine Oil message. This will clear the
message from the display and reset it.
To reset the oil life indicator, use the following steps:
1. Turn the system on by pressing the PWR/VOL knob
once. The PWR/VOL knob is located to the lower
left of the DIC display.
2. Press the INFO button located to the left of the display
to access the Vehicle Info (Information) menu.
3. Turn the TUNE/SEL knob located to the lower right
of the display until Engine Oil Life is highlighted.
Press the knob once to select it.
4. Once XXX% Engine Oil Life is displayed, press the
multi-function button next to the Reset prompt in the
upper right corner of the display.
The percentage will return to 100, and the oil life
indicator will be reset. Repeat the steps if the
percentage does not return to 100.
5. Turn the key to OFF.
If the Change Engine Oil message comes back on
when you start your vehicle, the engine oil life system
has not reset. Repeat the procedure.
What to Do with Used Oil
Used engine oil contains certain elements that may be
unhealthy for your skin and could even cause cancer.
Do not let used oil stay on your skin for very long.
Clean your skin and nails with soap and water, or a
good hand cleaner. Wash or properly dispose of
clothing or rags containing used engine oil. See the
manufacturer’s warnings about the use and disposal
of oil products.
Used oil can be a threat to the environment. If you
change your own oil, be sure to drain all the oil from
the lter before disposal. Never dispose of oil by
putting it in the trash, pouring it on the ground, into
sewers, or into streams or bodies of water. Instead,
recycle it by taking it to a place that collects used oil.
If you have a problem properly disposing of your
used oil, ask your dealer, a service station or a local
recycling center for help.
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Engine Air Cleaner/Filter
The engine air cleaner/lter is in the engine
compartment on the driver’s side of the vehicle, near
the front. SeeEngine Compartment Overview on
page 5-12for more information on location.
When to Inspect the Engine
Air Cleaner/Filter
Inspect the air cleaner/lter at every oil change
and replace it at the rst oil change after
25,000 miles (41 500 km).
How to Inspect the Engine
Air Cleaner/Filter
To inspect the air cleaner/lter remove the lter from
the vehicle and lightly shake the lter to release
loose dust and dirt. If the lter remains caked with dirt,
a new lter is required.
To inspect or replace the engine air cleaner/lter,
do the following:
1. Remove the two screws located on the sides
of the cover.
2. Lift the cover off.
3. Inspect or replace the engine air cleaner/lter.
SeeNormal Maintenance Replacement Parts
on page 6-15for the correct part number for
the lter.
4. Reinstall the cover by reversing Steps 1 and 2. CTS shown, CTS-Vsimilar
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