maintenance schedule CADILLAC STS 2009 1.G User Guide

How to Check Lubricant
To get an accurate reading, the vehicle should be on a
level surface.If the level is below the bottom of the ller plug hole,
located on the rear axle, you’ll need to add some
lubricant. Add enough lubricant to raise the level
to the bottom of the ller plug hole.
What to Use
Refer to the Maintenance Schedule to determine what
kind of lubricant to use. SeeRecommended Fluids
and Lubricants on page 6-13.
Front Axle
When to Check and Change Lubricant
It is not necessary to regularly check the front axle
uid unless you suspect there is a leak or you hear an
unusual noise. A uid loss could indicate a problem.
Have it inspected and repaired.
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How to Check Lubricant
A. Drain Plug
B. Filler Plug
To get an accurate reading, the vehicle should be on a
level surface.
If the level is below the bottom of the ller plug hole,
located on the front axle, you may need to add
some lubricant.
What to Use
Refer to the Maintenance Schedule to determine what
kind of lubricant to use. SeeRecommended Fluids
and Lubricants on page 6-13.
Headlamp Aiming
Headlamp aim has been preset at the factory and
should need no further adjustment.
However, if your vehicle is damaged in a crash, the
headlamp aim may be affected. Aim adjustment to the
low-beam headlamps may be necessary if oncoming
drivers ash their high-beam headlamps at you
(for vertical aim).
If the headlamps need to be re-aimed, it is
recommended that you take the vehicle to your
dealer/retailer for service.
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Back-Up Lamps
To replace a back-up lamp bulb:
1. Open the trunk. SeeTrunk on page 2-15.
2. Pull out the push pins holding down the top portion
of the cloth cover.
3. Fold the cover down slightly and locate the lamp
assembly.
4. Turn the socket counterclockwise and pull it straight
out to remove it from the lamp assembly.
5. Pull the old bulb straight out and reinstall the
new bulb.
6. Put the cover back in place and reinstall the
push pins.
Replacement Bulbs
Exterior Lamp Bulb Number
Back-up 3157K
For replacement bulbs not listed here, contact your
dealer/retailer.
Windshield Replacement
The windshield is part of the Head-Up Display (HUD)
system. If you ever have to get the windshield replaced,
get one that is designed for HUD or the HUD image
may look out of focus.
Windshield Wiper Blade
Replacement
Windshield wiper blades should be inspected for wear
or cracking. SeeScheduled Maintenance on page 6-4.
It’s a good idea to clean or replace the wiper blade
assembly on a regular basis or when worn. For proper
windshield wiper blade length and type, seeMaintenance
Replacement Parts on page 6-15.
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11. Set all four tires to the recommended air pressure
level as indicated on the tire and loading information
label.
12. Put the valve caps back on the valve stems.
Tire Inspection and Rotation
We recommend that you regularly inspect your
vehicle’s tires, including the spare tire, for signs
of wear or damage. SeeWhen It Is Time for
New Tires on page 5-73for more information.
Tire rotation is not recommended if your vehicle
has the following performance tire combinations:
P235/50R17 size tires on the front wheels
and P255/45R17 size tires on the rear wheels.
P235/50ZR18 size tires on the front wheels
and P255/45ZR18 size tires on the rear
wheels.
P255/45R18 size tires on the front wheels and
P275/40R19 size tires on the rear wheels.Different tire sizes should not be rotated front to
rear. Each tire and wheel should only be used
in the original front or rear position it is in.
Tire rotation is recommended if the vehicle is
equipped with P235/50R17 size tires on all four
wheel positions or 255/45ZR18 size tires on all
four wheel positions. These tires should be rotated
every 5,000 to 8,000 miles (8 000 to 13 000 km).
SeeScheduled Maintenance on page 6-4.
The purpose of a regular tire rotation is to achieve
a uniform wear for all tires on the vehicle. This
will ensure that the vehicle continues to perform
most like it did when the tires were new.
Any time you notice unusual wear, rotate
your tires as soon as possible and check wheel
alignment. Also check for damaged tires or wheels.
SeeWhen It Is Time for New Tires on page 5-73
andWheel Replacement on page 5-79.
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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.................................6-11
At Least Once a Year...................................6-11
Recommended Fluids and Lubricants...............6-13
Maintenance Replacement Parts.....................6-15
Engine Drive Belt Routing..............................6-16
Maintenance Record.....................................6-18
Section 6 Maintenance Schedule
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Maintenance Schedule
Introduction
Important: Keep engine oil at the proper level and
change as recommended.
Have you purchased the GM Protection Plan? The Plan
supplements the vehicle warranties. See the Warranty
and Owner Assistance booklet or your dealer/retailer
for details.
Maintenance Requirements
Notice:Maintenance intervals, checks, inspections,
replacement parts, and recommended uids and
lubricants as prescribed in this manual are necessary
to keep this vehicle in good working condition.
Any damage caused by failure to follow scheduled
maintenance might not be covered by the vehicle
warranty.
Your Vehicle and the Environment
Proper vehicle maintenance not only helps to keep the
vehicle in good working condition, but also helps the
environment. All recommended maintenance is
important. Improper vehicle maintenance can even affect
the quality of the air we breathe. Improper uid levels or
the wrong tire ination can increase the level of emissions
from the vehicle. To help protect the environment, and to
keep the vehicle in good condition, be sure to maintain
the vehicle properly.
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Using the Maintenance Schedule
We want to help keep this 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 the 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 the vehicle in good condition,
see your dealer/retailer.
This schedule is for vehicles that:
carry passengers and cargo within recommended
limits on the Tire and Loading Information label.
SeeLoading the Vehicle on page 4-24.
are driven on reasonable road surfaces within legal
driving limits.
use the recommended fuel. SeeGasoline Octane
on page 5-5.
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 5-4.
Some maintenance services can be complex. So, unless
you are technically qualied and have the necessary
equipment, have your dealer/retailer do these jobs.
When you go to your dealer/retailer for service, trained
and supported service technicians will perform the
work using genuine parts.
To purchase service information, seeService
Publications Ordering Information on page 7-15.
Owner Checks and Services on page 6-10tells what
should be checked, when to check it, and what can easily
be done to help keep the vehicle in good condition.
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The proper replacement parts, uids, and lubricants to
use are listed inRecommended Fluids and Lubricants
on page 6-13andMaintenance Replacement Parts
on page 6-15. When the 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 this
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 5-54. If tire rotation is
recommended for the vehicle, rotate tires. SeeTire
Inspection and Rotation on page 5-71and “Tire Wear
Inspection” inAt Least Once a Month on page 6-11.When the CHANGE ENGINE OIL SOON message
displays in the Driver Information Center (DIC),
service is required for the vehicle. Have the vehicle
serviced as soon as possible within the next 600 miles
(1 000 km). It is possible that, if driving under the
best conditions, the engine oil life system may not
indicate that vehicle service is necessary for over a year.
However, the 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.
If the engine oil life system is ever reset accidentally,
service the vehicle within 3,000 miles (5 000 km)
since the last service. Remember to reset the oil life
system whenever the oil is changed. SeeEngine Oil Life
System on page 5-21for information on the Engine
Oil Life System and resetting the system.
6-4

Maintenance Record
After the scheduled services are performed, record the date, odometer reading, who performed the service, and the
type of services performed in the boxes provided. SeeMaintenance Requirements on page 6-2. Any additional
information fromOwner Checks and Services on page 6-10can be added on the following record pages. You should
retain all maintenance receipts.
Maintenance Record
DateOdometer
ReadingServiced By Maintenance Stamp Services Performed
6-18

Online Owner Center
(United States only)
The Owner Center is a resource for your GM ownership
needs. Specic vehicle information can be found in
one place.
The Online Owner Center allows you to:
Get e-mail service reminders.
Access information about your specic vehicle,
including tips and videos and an electronic
version of this owner manual.
Keep track of your vehicle’s service history and
maintenance schedule.
Find GM dealers/retailers for service nationwide.
Receive special promotions and privileges only
available to members.
Refer to MyGMLink.com on the web for updated
information and to register your vehicle.
My GM Canada (Canada only)
My GM Canada is a password-protected section of
gmcanada.com where you can save information on
GM vehicles, get personalized offers, and use handy
tools and forms with greater ease.
Here are a few of the valuable tools and services you
will have access to:
My Showroom: Find and save information on
vehicles and current offers in your area.
My Dealers/Retailers: Save details such as address
and phone number for each of your preferred
GM Dealers or Retailers.
My Driveway: Receive service reminders and
helpful advice on owning and maintaining your
vehicle.
My Preferences: Manage your prole, subscribe to
E-News and use tools and forms with greater ease.
To sign up to My GM Canada, visit the My GM Canada
section within gmcanada.com.
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