2005 CADILLAC CTS V service indicator

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. 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.
Engine Oil Life System
When to Change Engine Oil
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.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 600 miles (1 000 km). 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 Engine Oil Life
System and the Oil Life Indicator
The Engine 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.
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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.
Navigation System
If you have the navigation system, see “Vehicle
Customization” in the CTS Navigation System Owner
Supplement for how to reset the oil life indicator.
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.
5-20

Brake Wear
Your vehicle has four-wheel disc brakes.
Disc brake pads have built-in wear indicators that make
a high-pitched warning sound when the brake pads
are worn and new pads are needed. The sound
may come and go or be heard all the time your vehicle
is moving, except when you are pushing on the
brake pedal rmly.
{CAUTION:
The brake wear warning sound means that
soon your brakes will not work well. That
could lead to an accident. When you hear the
brake wear warning sound, have your vehicle
serviced.
Notice:Continuing to drive with worn-out brake
pads could result in costly brake repair.Some driving conditions or climates may cause a brake
squeal when the brakes are rst applied or lightly
applied. This does not mean something is wrong with
your brakes.
Properly torqued wheel nuts are necessary to help
prevent brake pulsation. When tires are rotated, inspect
brake pads for wear and evenly tighten wheel nuts in
the proper sequence to GM torque specications.
Brake linings should always be replaced as complete
axle sets.
Brake Pedal Travel
See your dealer if the brake pedal does not return
to normal height, or if there is a rapid increase in pedal
travel. This could be a sign of brake trouble.
Brake Adjustment
Every time you apply the brakes, with or without the
vehicle moving, your brakes adjust for wear.
5-40

When It Is Time for New Tires
One way to tell when it’s
time for new tires is to
check the treadwear
indicators, which will
appear when your tires
have only 1/16 inch
(1.6 mm) or less of
tread remaining.
You need a new tire if any of the following statements
are true:
You can see the indicators at three or more places
around the tire.
You can see cord or fabric showing through the
tire’s rubber.
The tread or sidewall is cracked, cut or snagged
deep enough to show cord or fabric.
The tire has a bump, bulge or split.
The tire has a puncture, cut or other damage that
can’t be repaired well because of the size or
location of the damage.
Buying New Tires
To nd out what kind and size of tires your vehicle
needs, look at the tire and loading information label. For
more information about this label and its location on
your vehicle, seeLoading Your Vehicle on page 4-33.
The tires installed on your vehicle when it was new had a
Tire Performance Criteria Specication (TPC Spec)
number on each tire’s sidewall. When you get new tires,
GM recommends that you get tires with that same TPC
Spec number. That way your vehicle will continue to
have tires that are designed to give proper endurance,
handling, speed rating, load range, traction, ride, tire
pressure monitoring system performance and other
things during normal service on your vehicle. If your
tires have an all-season tread design, the TPC number
will be followed by an “MS” (for mud and snow).
Whenever you replace your tires with those not having
a TPC Spec number, make sure they are the same
size, load range, speed rating and construction
type (bias, bias-belted or radial) as your original tires.
5-69

Locks
Central Door Unlocking System....................... 2-9
Delayed Locking........................................... 2-9
Door........................................................... 2-8
Lockout Protection.......................................2-11
Power Door.................................................. 2-9
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-10
Loss of Control...............................................4-16
Lumbar
Power Controls............................................. 1-3
M
Maintenance Schedule
Additional Required Services........................... 6-6
At Each Fuel Fill........................................... 6-9
At Least Once a Month.................................. 6-9
At Least Once a Year..................................6-10
Introduction.................................................. 6-2
Maintenance Footnotes.................................. 6-7
Maintenance Record....................................6-15
Maintenance Requirements............................. 6-2
Normal Maintenance Replacement Parts.........6-14
Owner Checks and Services........................... 6-9
Recommended Fluids and Lubricants.............6-12
Scheduled Maintenance................................. 6-4
Using.......................................................... 6-2Maintenance Schedule (cont.)
Your Vehicle and the Environment................... 6-2
Malfunction Indicator Light................................3-45
Manual Passenger Seat.................................... 1-2
Manual Transmission
Fluid..........................................................5-24
Operation...................................................2-31
Map Pocket...................................................2-50
Memory Mirrors..............................................2-52
Memory Seat.................................................2-52
Message
Center.......................................................3-51
Check Engine Oil Pressure...........................3-56
DIC Warnings and Messages........................3-65
Hot Coolant Temperature Warning..................3-55
Oil Temperature Warning..............................3-56
Tire Pressure Warning..................................3-57
Transmission Fluid Hot.................................3-55
Mirrors
Automatic Dimming Rearview with OnStar
®.....2-39
Automatic Dimming Rearview with OnStar®
and Compass..........................................2-40
Memory.....................................................2-52
Outside Convex Mirror.................................2-43
Outside Curb View Assist Mirror....................2-43
Outside Heated Mirrors................................2-43
Outside Power Mirrors..................................2-42
MyGMLink.com................................................ 7-3
8

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Navigation/Radio System, see Navigation
Manual.....................................................3-105
New Vehicle Break-In......................................2-21
Normal Maintenance Replacement Parts............6-14
OOdometer......................................................3-37
Odometers, Trip..............................................3-37
Off-Road Recovery..........................................4-15
Oil
Engine.......................................................5-16
Pressure Light.............................................3-48
Oil, Engine Oil Life System..............................5-19
Oil Temperature Warning Message....................3-56
Older Children, Restraints................................1-29
Online Owner Center........................................ 7-3
OnStar
®System, see OnStar®Manual...............2-44
Other Warning Devices...................................... 3-6
Outlet Adjustment............................................3-31
Outside
Convex Mirror.............................................2-43
Curb View Assist Mirror................................2-43
Heated Mirrors............................................2-43
Power Mirrors.............................................2-42
Overheated Engine Protection Operating Mode.....5-30
Owner Checks and Services.............................. 6-9
Owners, Canadian............................................... ii
P
Panic Brake Assist..........................................4-12
Parade Dimming.............................................3-24
Park (P)
Shifting Into................................................2-34
Shifting Out of............................................2-35
Parking
Brake........................................................2-33
Over Things That Burn.................................2-37
Parking Your Vehicle.......................................2-37
Passenger Airbag Status Indicator.....................3-39
Passenger Compartment Air Filter.....................3-32
Passenger Sensing System..............................1-60
Passing.........................................................4-15
Power
Accessory Outlets........................................3-25
Door Locks.................................................. 2-9
Electrical System.........................................5-96
Lumbar Controls........................................... 1-3
Retained Accessory (RAP)............................2-24
Seat............................................................ 1-2
Steering Fluid.............................................5-36
Windows....................................................2-15
Pretensioners, Safety Belt................................1-28
Programmable Automatic Door Locks.................2-10
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