2007 CADILLAC CTS service

Run-Flat Tires (CTS-V)
If your vehicle has run-at tires, there is no spare
tire and no tire changing equipment. Run-at
tires can operate effectively with no air pressure
for a limited distance and speed. Your vehicle also
has a Tire Pressure Monitor (TPM) which will
alert you if there is a loss of tire pressure in any of
the tires. These tires perform so well without
any air pressure that a Tire Pressure Monitor
(TPM) is used to alert you when there is a low tire
condition.
{CAUTION:
When the low tire warning light is
displayed on the instrument panel cluster,
your vehicle’s handling capabilities will
be reduced during severe maneuvers.
If you drive too fast, you could lose control
of your vehicle. You or others could be
injured. Do not drive over 55 mph (90 km/h)
CAUTION: (Continued)
CAUTION: (Continued)
when the low tire warning light is
displayed. Drive cautiously and check
your tire pressures as soon as you can.
SeeRun-Flat Tires (CTS-V) on page 400and
Tire Pressure Monitor System on page 405,
for additional information.
{CAUTION:
Special tools and procedures are required
to service a run-at tire. If these special
tools and procedures are not used you or
others could be injured and your vehicle
could be damaged. Always be sure the
proper tools and procedures, as described
in the service manual, are used.
To order a service manual seeService
Publications Ordering Information on page 501.
423

Vehicle Identication
Vehicle Identication Number (VIN)
This is the legal identier for your vehicle. It
appears on a plate in the front corner of the
instrument panel, on the driver side. You can see
it if you look through the windshield from outside
your vehicle. The VIN also appears on the Vehicle
Certication and Service Parts labels and the
certicates of title and registration.
Engine Identication
The eighth character in the VIN is the engine
code. This code helps you identify your vehicle’s
engine, specications, and replacement parts.
Service Parts Identication Label
This label is on your spare tire cover. It is
very helpful if you ever need to order parts. The
label has the following information:
Vehicle Identication Number (VIN)
Model designation
Paint information
Production options and special equipment
Do not remove this label from the vehicle.
445

Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected
from short circuits by a combination of fuses
and circuit breakers. This greatly reduces
the chance of res caused by electrical problems.
Look at the silver-colored band inside the fuse.
If the band is broken or melted, replace the fuse.
Be sure you replace a bad fuse with a new
one of the identical size and rating. If a fuse blows,
see your dealer for service immediately.
If you ever have a problem on the road and don’t
have a spare fuse, you can “borrow” one that has
the same amperage. Pick some feature of your
vehicle that you can get along without – like the
radio or cigarette lighter – and use its fuse, if it is the
correct amperage. Replace it as soon as you can.
The fuses are located in three fuse blocks,
one located in the engine compartment on the
passenger’s side and the other two under the
rear seat.
Underhood Fuse Block
The underhood fuse block is located in the engine
compartment on the passenger’s side of the
vehicle. SeeEngine Compartment Overview on
page 342for more information on location.
To access the fuses, push in the two tabs located
on each side of the fuse block cover. Then lift
the cover off.
447

Maintenance Schedule................................ 460
Introduction............................................... 460
Maintenance Requirements........................ 460
Your Vehicle and the Environment............ 460
Using the Maintenance Schedule............... 461
Scheduled Maintenance............................. 462
Additional Required Services..................... 465
Maintenance Footnotes.............................. 467
Owner Checks and Services..................... 469At Each Fuel Fill....................................... 469
At Least Once a Month............................. 470
At Least Once a Year............................... 470
Recommended Fluids and Lubricants........ 473
Normal Maintenance
Replacement Parts................................. 475
Engine Drive Belt Routing......................... 476
Maintenance Record.................................. 477
Section 6 Maintenance Schedule
459

Using the Maintenance Schedule
We at General Motors want to help you keep your
vehicle in good working condition. But we do
not know exactly how you will drive it. You may
drive very short distances only a few times a week.
Or you may drive long distances all the time in
very hot, dusty weather. You may use your vehicle
in making deliveries. Or you may 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 may
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
GM Goodwrench
®dealer.
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 Your Vehicle on page 321.
are driven on reasonable road surfaces within
legal driving limits.
use the recommended fuel. SeeGasoline
Octane on page 334.The services inScheduled Maintenance on
page 462should be performed when indicated.
SeeAdditional Required Services on page 465and
Maintenance Footnotes on page 467for 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 GM
Goodwrench
®dealer to have a qualied
technician do the work.
Some maintenance services can be complex.
So, unless you are technically qualied and have
the necessary equipment, you should have
your GM Goodwrench
®dealer do these jobs.
461

When you go to your GM Goodwrench®dealer for
your service needs, you will know that GM-trained
and supported service technicians will perform
the work using genuine GM parts.
If you want to purchase service information,
seeService Publications Ordering Information
on page 501.
Owner Checks and Services on page 469tells 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 473andNormal
Maintenance Replacement Parts on page 475.
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 GM parts.Scheduled Maintenance
When the Change Engine Oil 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 GM Goodwrench
®
dealer has GM-trained service technicians who will
perform this work using genuine GM parts and
reset the system.
If the engine oil life system is ever reset
accidentally, you must service your vehicle within
3,000 miles (5 000 km) since your last service.
Remember to reset the oil life system whenever
the oil is changed. SeeEngine Oil Life System on
page 349for information on the Engine Oil Life
System and resetting the system.
462

When the Change Engine Oil message appears,
certain services, checks, and inspections are
required. Required services are described in the
following for “MaintenanceI” and “MaintenanceII.”
Generally, it is recommended that your rst
service be MaintenanceI, your second service
be MaintenanceII, and that you alternate
MaintenanceIand MaintenanceIIthereafter.
However, in some cases, MaintenanceIImay be
required more often.MaintenanceI— Use MaintenanceIif the
change engine oil message comes on within
10 months since the vehicle was purchased or
MaintenanceIIwas performed.
MaintenanceII— Use MaintenanceIIif the
previous service performed was MaintenanceI.
Always use MaintenanceIIwhenever the message
comes on 10 months or more since the last
service or if the message has not come on at all
for one year.
Scheduled Maintenance
Service MaintenanceIMaintenanceII
Change engine oil and lter. SeeEngine Oil on page 346. Reset oil life system.
SeeEngine Oil Life System on page 349.An Emission Control Service.••
Visually check for any leaks or damage.See footnote (k).••
Inspect engine air cleaner lter. If necessary, replace lter. SeeEngine Air
Cleaner/Filter on page 351.See footnote (n).•
Rotate tires and check ination pressures and wear. SeeTire Inspection and
Rotation on page 409and “Tire Wear Inspection” inAt Least Once a Month on
page 470.••
463

Scheduled Maintenance (cont’d)
Service MaintenanceIMaintenanceII
Inspect brake system.See footnote (a).••
Check engine coolant and windshield washer uid levels and add uid as
needed.••
Perform any needed additional services. See “Additional Required Services”
in this section.••
Inspect suspension and steering components.See footnote (b).•
Inspect engine cooling system.See footnote (c).•
Inspect wiper blades.See footnote (d).•
Inspect restraint system components.See footnote (e).•
Lubricate body components.See footnote (f).•
Replace passenger compartment air lter.See footnote (g).•
464