service schedule CADILLAC CTS 2008 2.G Owners Manual

Seats and Restraint Systems........................... 1-1
Head Restraints
......................................... 1-2
Front Seats
............................................... 1-4
Rear Seats
..............................................1-11
Safety Belts
.............................................1-12
Child Restraints
.......................................1-32
Airbag System
.........................................1-56
Restraint System Check
............................1-72
Features and Controls..................................... 2-1
Keys
........................................................ 2-4
Doors and Locks
......................................2-18
Windows
.................................................2-24
Theft-Deterrent Systems
............................2-28
Starting and Operating Your Vehicle
...........2-32
Mirrors
....................................................2-50
Object Detection Systems
..........................2-52
OnStar
®System
......................................2-55
Universal Home Remote System
................2-58
Storage Areas
.........................................2-62
Sunroof
..................................................2-63
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-24
Warning Lights, Gages, and Indicators
........3-30
Driver Information Center (DIC)
..................3-48
Audio System(s)
.......................................3-82Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and the Vehicle
....... 4-2
Towing
...................................................4-28
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-4
Fuel
......................................................... 5-6
Checking Things Under the Hood
...............5-12
All-Wheel Drive
........................................5-50
Rear Axle
...............................................5-51
Headlamp Aiming
.....................................5-52
Bulb Replacement
....................................5-55
Windshield Wiper Blade Replacement
.........5-57
Tires
......................................................5-58
Appearance Care
...................................5-112
Vehicle Identication
...............................5-121
Electrical System
....................................5-122
Capacities and Specications
...................5-129
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance Information.................... 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-16
Vehicle Data Recording and Privacy
...........7-18
Index................................................................ 1
2008 Cadillac CTS Owner ManualM

Restraint System Check
Checking the Restraint Systems
Safety Belts
Now and then, check the safety belt reminder light,
safety belts, buckles, latch plates, retractors, and
anchorages are all 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.
Make sure the safety belt reminder light is working.
SeeSafety Belt Reminders on page 3-33for more
information.
Keep safety belts clean and dry. SeeCare of Safety
Belts on page 5-115.
Airbags
The airbag system does not need regularly scheduled
maintenance or replacement. Make sure the airbag
readiness light is working. SeeAirbag Readiness Light
on page 3-34for more information.
Notice:If an airbag covering is damaged, opened,
or broken, the airbag may not work properly.
Do not open or break the airbag coverings. If there
are any opened or broken airbag covers, have the
airbag covering and/or airbag module replaced.
For the location of the airbag modules, seeWhat
Makes an Airbag Inflate? on page 1-63. See your
dealer/retailer for service.
1-72

Oil Pressure Light
Your vehicle may have this
feature.
If the vehicle has an oil problem, this light may stay on
after the engine is started, or come on while you are
driving.
This light indicates that oil is not going through the
engine quickly enough to keep it lubricated. The engine
could be low on oil or could have some other oil
problem. Have it xed right away.The oil light could also come on in the following
situations:The light will come on briey when the ignition is
turned on to show that it is working properly. If it
does not come on with the ignition on, there may
be a problem with the fuse or bulb. Have it
xed right away.
Sometimes when the engine is idling at a stop, a
chime will sound and the light may blink on and
off. This is normal.
{CAUTION:
Do not keep driving if the oil pressure is low.
The engine can become so hot that it catches
re. You or others could be burned. Check the
oil as soon as possible and have the vehicle
serviced.
Notice:Lack of proper engine oil maintenance may
damage the engine. The repairs would not be
covered by the vehicle warranty. Always follow the
maintenance schedule in this manual for changing
engine oil.
3-44

Engine Oil Pressure Gage
Your vehicle may have an engine oil pressure gage.
It shows the engine oil pressure in psi (pounds per
square inch) when the engine is running. Canadian
vehicles indicate pressure in kPa (kilopascals).
Oil pressure may vary with engine speed, outside
temperature and oil viscosity, but if readings are outside
the normal operating range, the oil pressure light will
come on. SeeOil Pressure Light on page 3-44for more
information.A reading outside the normal operating range may be
caused by a dangerously low oil level or some other
problem causing low oil pressure. Check your oil as
soon as possible. See Oil pressure Low Stop Engine
underDIC Warnings and Messages on page 3-56
andEngine Oil on page 5-16.
{CAUTION:
Do not keep driving if the oil pressure is low.
The engine can become so hot that it catches
re. You or others could be burned. Check the
oil as soon as possible and have the vehicle
serviced.
Notice:Lack of proper engine oil maintenance
may damage the engine. The repairs would not be
covered by the vehicle warranty. Always follow
the maintenance schedule in this manual for
changing engine oil. United States
Canada
3-45

Calibrating Drive In Circles
This message displays when calibrating the compass.
Drive the vehicle in circles at less than 5 mph (8 km/h)
to complete the calibration. SeeDIC Compass on
page 3-53for more information.
Calibration Complete
This message displays when the compass calibration is
complete. SeeDIC Compass on page 3-53for more
information.
Change Engine Oil Soon
When this message displays, it means that service is
required for your vehicle. See your dealer/retailer.
SeeEngine Oil on page 5-16andScheduled
Maintenance on page 6-4for more information.
When you reset the Change Engine Oil Soon message
by clearing it from the display, you still must reset
the engine oil life system separately. For more
information on resetting the engine oil life system,
seeEngine Oil Life System on page 5-19.
Check Tire Pressure
This message displays when the pressure in one or
more of the vehicle’s tires needs to be checked.
This message also displays Left Front, Right Front,
Left Rear, or Right Rear to indicate which tire needs
to be checked. You can receive more than one tire
pressure message at a time. To read the other
messages that may have been sent at the same time,
press the set/reset button. If a tire pressure message
appears on the DIC, stop as soon as you can. Have the
tire pressures checked and set to those shown on the
Tire Loading Information label. SeeTires on page 5-58,
Loading the Vehicle on page 4-22, andInflation - Tire
Pressure on page 5-66. The DIC display also shows the
tire pressure values. SeeDIC Operation and Displays
on page 3-48. If the tire pressure is low, the low tire
pressure warning light comes on. SeeTire Pressure
Light on page 3-41.
Cruise Set To XXX MPH (km/h)
This message displays whenever the cruise control is set.
SeeCruise Control on page 3-14for more information.
Driver Door Open
This message displays when the driver door is not closed
completely. Make sure that the door is closed completely.
3-58

When You Are Ready to Leave After
Parking on a Hill
1. Apply your regular brakes and hold the pedal down
while you:
Start your engine.
Shift into a gear.
Release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store the
chocks.
Maintenance When Trailer Towing
Your vehicle will need service more often when you’re
pulling a trailer. See the Maintenance Schedule for more
on this. Things that are especially important in trailer
operation are automatic transmission uid (don’t overll),
engine oil, drive belt, cooling system and brake system.
Each of these is covered in this manual, and the Index
will help you nd them quickly. If you’re trailering, it’s a
good idea to review this information before you start
your trip.
Check periodically to see that all hitch nuts and bolts
are tight.
Engine Cooling When Trailer Towing
Your cooling system may temporarily overheat during
severe operating conditions. SeeEngine Overheating on
page 5-31.
4-37

How to Add Manual Transmission Fluid
Here is how to add uid. SeeRecommended Fluids
and Lubricants on page 6-14to determine which type of
uid to use.
1. Remove the ller plug.
2. Add uid at the ller plug hole. Add only enough
uid to bring the uid level up to the bottom of the
ller plug hole.
3. Replace the gasket and reinstall the ller plug.
Be sure the plug is fully seated.
Hydraulic Clutch
It is not necessary to regularly check clutch uid unless
you suspect there is a leak in the system. Adding
uid will not correct a leak. A uid loss in this system
could indicate a problem. Have the system inspected
and repaired.
When to Check and What to Use
The hydraulic clutch uid
reservoir cap has this
symbol on it. SeeEngine
Compartment Overview
on page 5-14for reservoir
location.
Refer to the Maintenance Schedule for the proper uid
to use. SeeRecommended Fluids and Lubricants on
page 6-14. The uid requires changing every two years.
SeeAdditional Required Services on page 6-6.
5-27

Maintenance Schedule......................................6-2
Introduction...................................................6-2
Maintenance Requirements..............................6-2
Your Vehicle and the Environment....................6-2
Using the Maintenance Schedule......................6-3
Scheduled Maintenance...................................6-4
Additional Required Services............................6-6
Maintenance Footnotes...................................6-8Owner Checks and Services..........................6-10
At Each Fuel Fill..........................................6-10
At Least Once a Month.................................6-10
At Least Once a Year...................................6-11
Recommended Fluids and Lubricants...............6-14
Maintenance Replacement Parts.....................6-16
Engine Drive Belt Routing..............................6-17
Maintenance Record.....................................6-18
Section 6 Maintenance Schedule
6-1

Using the Maintenance Schedule
We want to help you keep your vehicle in good working
condition. But we do not know exactly how you will drive
it. You might drive very short distances only a few times a
week. Or you might drive long distances all the time in
very hot, dusty weather. You might use your vehicle in
making deliveries. Or you might drive it to work, to do
errands, or in many other ways.
Because of all the different ways people use their
vehicles, maintenance needs vary. You might need
more frequent checks and replacements. So please
read the following and note how you drive. If you have
any questions on how to keep your vehicle in good
condition, see your dealer/retailer.
This schedule is for vehicles that:
carry passengers and cargo within recommended
limits. You will nd these limits on the Tire and
Loading Information label. SeeLoading the Vehicle
on page 4-22.
are driven on reasonable road surfaces within legal
driving limits.
use the recommended fuel. SeeGasoline Octane
on page 5-7.The services inScheduled Maintenance on page 6-4
should be performed when indicated. SeeAdditional
Required Services on page 6-6andMaintenance
Footnotes on page 6-8for further information.
{CAUTION:
Performing maintenance work on a vehicle
can be dangerous. In trying to do some jobs,
you can be seriously injured. Do your own
maintenance work only if you have the
required know-how and the proper tools and
equipment for the job. If you have any doubt,
see your dealer/retailer to have a qualied
technician do the work. SeeDoing Your
Own Service Work on page 5-5.
Some maintenance services can be complex.
So, unless you are technically qualied and have
the necessary equipment, you should have your
dealer/retailer do these jobs.
6-3

When you go to your dealer/retailer for your service
needs, you will know that trained and supported service
technicians will perform the work using genuine parts.
If you want to purchase service information, seeService
Publications Ordering Information on page 7-17.
Owner Checks and Services on page 6-10tells you
what should be checked, when to check it, and what you
can easily do to help keep your vehicle in good
condition.
The proper replacement parts, uids, and lubricants to
use are listed inRecommended Fluids and Lubricants
on page 6-14andMaintenance Replacement Parts
on page 6-16. When your vehicle is serviced, make sure
these are used. All parts should be replaced and all
necessary repairs done before you or anyone else
drives the vehicle. We recommend the use of genuine
parts from your dealer/retailer.Scheduled Maintenance
To maintain the ride, handling, and performance of your
vehicle, it is important that the rst tire rotation service
be performed when the vehicle has 5,000 to 8,000 miles
(8 000 to 13 000 km). Check tires for ination pressures
and wear. SeeTires on page 5-58. Rotate tires. SeeTire
Inspection and Rotation on page 5-74and “Tire Wear
Inspection” inAt Least Once a Month on page 6-10.
When the Change Engine Oil Soon message in the
Driver Information Center (DIC) comes on, it means that
service is required for your vehicle. Have your vehicle
serviced 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 engine oil life system may not
indicate that vehicle service 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/retailer has trained service technicians
who will perform this work using genuine parts and reset
the system.
6-4