2005 CADILLAC DEVILLE maintenance

BATTERY VOLTAGE LOW – 6:This message will
appear when the electrical system is charging less than
10 volts or if the battery has been drained. If this
message appears immediately after starting, it is
possible that the generator can still recharge the battery.
The battery should recharge while driving but may
take a few hours to do so. Consider using an auxiliary
charger (be sure to follow the manufacturer’s
instructions) to boost the battery after returning home or
to a nal destination. If this message appears while
driving or after starting your vehicle and stays on, have
it checked immediately by your GM dealer to determine
the cause of this problem. To help the generator
recharge the battery quickly, you can reduce the load
on the electrical system by turning off the accessories.
You can monitor battery voltage on the DIC by
pressing the INFO button. The normal range is
11.5 to 15.5 volts.
CHANGE ENGINE OIL – 82:This means that the life
of the engine oil has expired. SeeScheduled
Maintenance on page 6-4. After an oil change, the oil
life indicator must be reset. SeeEngine Oil Life System
on page 5-17. SeeEngine Oil on page 5-14andOil
Life Indicator on page 3-79for more information.CHANGE TRANS FLUID – 47:This message will
appear when it is time to change the transaxle uid.
SeeScheduled Maintenance on page 6-4for the proper
uid and change intervals.
After the transaxle uid has been changed, the transaxle
uid change indicator must be reset. See “How to
Reset the Transaxle Fluid Indicator” underAutomatic
Transaxle Fluid on page 5-21.
CHECK BRAKE FLUID – 37:This message will
display if the ignition is in ON to inform the driver that
the brake uid level is low. Have the brake system
serviced by your GM dealer as soon as possible. See
Brake System Warning and Parking Brake Indicator
Light on page 3-47.
CHECK COOLANT LEVEL – 2:This message will
appear when there is a low level of engine coolant.
Have the cooling system serviced by your GM dealer as
soon as possible. SeeEngine Coolant on page 5-24.
CHECK FUEL GAGE – 50:(Analog Cluster) This
message will appear when the fuel supply is less than
5 gallons (18.9 L) and the display is turned off. A single
chime will also sound when this message is displayed.
3-61

Driver’s Name Set/Recall
If your vehicle has the optional memory package, you
will have this feature. This feature allows individual
driver’s names to be displayed in the DIC when
the ignition is turned to ON. This feature only works
when the remote keyless entry transmitter is used
to unlock the vehicle or when buttons 1 or 2 on the
driver’s door are pressed. See your dealer for assistance
in programming this feature.
Exiting Feature Programming
To exit FEATURE PROGRAMMING, press the INFO
RESET or INFO button.
Trip Computer
Oil Life Indicator
This feature lets you know when to change the engine
oil. It is based on the engine oil temperatures and
your driving patterns.
To see the display, press the INFO button several times
until ENGINE OIL LIFE appears. If you see 99%
ENGINE OIL LIFE, 99 percent of your current oil life
remains.
The DIC may display a CHANGE ENGINE OIL
message. If you see CHANGE ENGINE OIL, it means
the oil life is gone. For more information, seeScheduled
Maintenance on page 6-4andEngine Oil on page 5-14.
When the oil is changed, you will need to reset the
system. SeeEngine Oil Life System on page 5-17.
Always keep a written record of the mileage and date
when you changed your oil.
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But if you ever have to park your rig on a hill, here is
how to do it:
1. Apply your regular brakes, but do not shift into
PARK (P).
2. Have someone place chocks behind the trailer
wheels.
3. When the wheel chocks are in place, release the
regular brakes until the chocks absorb the load.
4. Reapply the regular brakes. Then shift into
PARK (P) rmly and apply your parking brake.
5. Release the regular brakes.
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, and
Make sure the parking brake has released.
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 are
pulling a trailer. See the Maintenance Schedule for
more on this. Things that are especially important in
trailer operation are automatic transaxle uid (do
not 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
are trailering, it is 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 5-27.
4-43

If a Tire Goes Flat........................................5-76
Changing a Flat Tire.....................................5-77
Removing the Spare Tire and Tools................5-78
Removing the Flat Tire and Installing the
Spare Tire................................................5-80
Storing a Flat or Spare Tire
and Tools.................................................5-85
Compact Spare Tire......................................5-86
Appearance Care............................................5-87
Cleaning the Inside of Your Vehicle.................5-87
Fabric/Carpet...............................................5-89
Leather.......................................................5-89
Instrument Panel, Vinyl, and Other Plastic
Surfaces..................................................5-90
Wood Panels...............................................5-90
Speaker Covers............................................5-90
Glass Surfaces.............................................5-90
Care of Safety Belts......................................5-91
Weatherstrips...............................................5-91
Washing Your Vehicle...................................5-91
Cleaning Exterior Lamps/Lenses.....................5-91
Finish Care..................................................5-92Windshield and Wiper Blades.........................5-92
Aluminum or Chrome-Plated Wheels................5-93
Tires...........................................................5-94
Sheet Metal Damage.....................................5-94
Finish Damage.............................................5-94
Underbody Maintenance................................5-94
Chemical Paint Spotting.................................5-94
Vehicle Care/Appearance Materials..................5-95
Vehicle Identication......................................5-96
Vehicle Identication Number (VIN).................5-96
Service Parts Identication Label.....................5-96
Electrical System............................................5-97
Add-On Electrical Equipment..........................5-97
Headlamp Wiring..........................................5-97
Windshield Wiper Fuses................................5-97
Power Windows and Other Power Options.......5-97
Fuses and Circuit Breakers............................5-98
Underhood Fuse Block..................................5-98
Rear Underseat Fuse Block..........................5-101
Capacities and Specications........................5-106
Section 5 Service and Appearance Care
5-2

Doing Your Own Service Work
If you want to do some of your own service work, you
will want to use the proper service manual. It tells
you much more about how to service your vehicle than
this manual can. To order the proper service manual,
seeService Publications Ordering Information on
page 7-11.
Your vehicle has an airbag system. Before attempting to
do your own service work, seeServicing Your
Airbag-Equipped Vehicle on page 1-58.
You should keep a record with all parts receipts and list
the mileage and the date of any service work you
perform. SeeMaintenance Record on page 6-14.{CAUTION:
You can be injured and your vehicle could be
damaged if you try to do service work on a
vehicle without knowing enough about it.
Be sure you have sufficient knowledge,
experience, the proper replacement parts,
and tools before you attempt any vehicle
maintenance task.
Be sure to use the proper nuts, bolts, and
other fasteners. English and metric
fasteners can be easily confused. If you
use the wrong fasteners, parts can later
break or fall off. You could be hurt.
5-4

Adding Equipment to the Outside of
Your Vehicle
Things you might add to the outside of your vehicle can
affect the airow around it. This may cause wind
noise and affect windshield washer performance.
Check with your dealer before adding equipment to the
outside of your vehicle.
Fuel
Use of the recommended fuel is an important part of the
proper maintenance of your vehicle.
Gasoline Octane
Use regular unleaded gasoline with a posted octane of
87 or higher. However, for best performance and for
trailer towing, you may wish to use middle grade
or premium unleaded gasoline. If the octane is less than
87, you may get a heavy knocking noise when you
drive. If this occurs, use a gasoline rated at 87 octane
or higher as soon as possible. Otherwise, you might
damage your engine.
Gasoline Specications
It is recommended that gasoline meet specications
which were developed by automobile manufacturers
around the world and contained in the World-Wide Fuel
Charter which is available from the Alliance of Automobile
Manufacturers at www.autoalliance.org/fuel_charter.htm.
Gasoline meeting these specications could provide
improved driveability and emission control system
performance compared to other gasoline.
California Fuel
If your vehicle is certied to meet California Emission
Standards, it is designed to operate on fuels that
meet California specications. See the underhood
emission control label. If this fuel is not available
in states adopting California emissions standards, your
vehicle will operate satisfactorily on fuels meeting
federal specications, but emission control system
performance may be affected. The malfunction indicator
lamp may turn on and your vehicle may fail a
smog-check test. SeeMalfunction Indicator Lamp on
page 3-50. If this occurs, return to your authorized
GM dealer for diagnosis. If it is determined that
the condition is caused by the type of fuel used,
repairs may not be covered by your warranty.
5-5

Engine Air Cleaner/Filter
SeeEngine Compartment Overview on page 5-12for
the location of the engine air cleaner/lter.
When to Inspect the Engine Air
Cleaner/Filter
Inspect the air cleaner/lter at the MaintenanceII
intervals and replace it at the rst oil change after
50,000 miles (83 000 km). SeeScheduled Maintenance
on page 6-4for more information. If you are driving
in dusty/dirty conditions, inspect the lter at each engine
oil change.
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 lter, do the following:
1. Loosen and remove both wing screws on the top of
the engine air cleaner/lter cover.
2. Lift up the outboard side of the cover at an angle
while pulling toward you. This is necessary due to
the three tabs located on the rear of the cover.
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3. Check both sides of the dipstick, and read the
lower level. The uid level must be in the
cross-hatched area.
4. If the uid level is in the acceptable range, push the
dipstick back in all the way and turn the handle
clockwise. Reinstall the engine air cleaner/lter
assembly.
How to Add Automatic Transaxle Fluid
Refer to the Maintenance Schedule to determine
what kind of transaxle uid to use. SeeRecommended
Fluids and Lubricants on page 6-12.
If the uid level is low, add only enough of the proper
uid to bring the level into the cross-hatched area on
the dipstick.
1. Pull out the dipstick.
2. Using a long-neck funnel, add enough uid at the
dipstick hole to bring it to the proper level.
It does not take much uid, generally less than
one pint (0.5 L). Do not overll.
Notice:Use of the incorrect automatic transaxle
uid may damage your vehicle, and the damages
may not be covered by your warranty. Always
use the automatic transaxle uid listed in
Recommended Fluids and Lubricants on page 6-12.
3. After adding uid, recheck the uid level as
described under “How to Check Automatic
Transaxle Fluid,” earlier in this section.
4. When the correct uid level is obtained, push the
dipstick back in all the way and turn the handle
clockwise.
5-23