2004 CADILLAC XLR power steering

To turn the system off,
press and hold the traction
control button on the
console for ®ve seconds
with the vehicle stopped.
You can turn the
system back on at any
time by pressing the
button.
The DIC will display the appropriate message when you
push the button, either TRAC/STABILITRAK ON or
TRAC/STABILITRAK OFF.Steering
Power Steering
If you lose power steering assist because the engine
stops or the system is not functioning, you can steer but
it will take much more effort.
Magnetic Speed Variable Assist
Steering
Your vehicle is equipped with a steering system that
continuously adjusts the effort you feel when steering at
all vehicle speeds. It provides ease when parking,
yet a ®rm, solid feel at highway speeds.
4-12

Service............................................................5-3
Doing Your Own Service Work.........................5-4
Adding Equipment to the Outside of
Your Vehicle..............................................5-4
Fuel................................................................5-5
Gasoline Octane............................................5-5
Gasoline Speci®cations....................................5-5
California Fuel...............................................5-6
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-7
Filling Your Tank............................................5-7
Filling a Portable Fuel Container.....................5-10
Checking Things Under
the Hood....................................................5-10
Hood Release..............................................5-11
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-13
Engine Air Cleaner/Filter................................5-18
Automatic Transmission Fluid.........................5-19
Engine Coolant.............................................5-20
Coolant Surge Tank Pressure Cap..................5-23
Engine Overheating.......................................5-23
Cooling System............................................5-26
Power Steering Fluid.....................................5-32Windshield Washer Fluid................................5-33
Brakes........................................................5-35
Battery........................................................5-38
Jump Starting...............................................5-39
Rear Axle.......................................................5-45
Headlamp Aiming...........................................5-46
Headlamp Vertical Aiming..............................5-47
Bulb Replacement..........................................5-49
Windshield Wiper Blade Replacement..............5-49
Tires..............................................................5-50
Run-Flat Tires..............................................5-56
In¯ation - Tire Pressure.................................5-57
Tire Pressure Monitor System.........................5-58
Tire Inspection and Rotation...........................5-60
When It Is Time for New Tires.......................5-62
Buying New Tires.........................................5-63
Uniform Tire Quality Grading..........................5-64
Wheel Alignment and Tire Balance..................5-65
Wheel Replacement......................................5-66
Tire Chains..................................................5-68
Lifting Your Vehicle.......................................5-69
If a Tire Goes Flat........................................5-73
Section 5 Service and Appearance Care
5-1

A. Battery. SeeBattery on page 5-38.
B. Passenger Compartment Air Filter. See
Passenger
Compartment Air Filter on page 3-38.
C. Underhood Fuse Block. See
Fuses and Circuit
Breakers on page 5-85.
D. Power Steering Fluid. See
Power Steering Fluid on
page 5-32.
E. Engine Air Cleaner/Filter. See
Engine Air
Cleaner/Filter on page 5-18.
F. Engine Oil Fill Cap. See
Engine Oil on page 5-13.
G. Engine Oil Dipstick. See
Engine Oil on page 5-13.
H. Brake Master Cylinder Reservoir. See
Brakes
on page 5-35.
I. Engine Coolant Surge Tank and Pressure Cap. See
Coolant Surge Tank Pressure Cap on page 5-23.
J. Windshield Washer Fluid Reservoir. See
Windshield
Washer Fluid on page 5-33.
Engine Oil
If the LOW OIL LEVEL or LOW OIL PRESSURE
message on the Driver Information Center appears, it
means you need to check your engine oil level right
away. For more information, see ªLOW OIL LEVELº and
ªLOW OIL PRESSUREº under
DIC Warnings and
Messages on page 3-57.You should check your engine oil level regularly; this is
an added reminder.
Checking Engine Oil
It is a good idea to check your engine oil every time you
get fuel. In order to get an accurate reading, the oil
must be warm and the vehicle must be on level ground.
The engine oil dipstick handle is a yellow loop. See
Engine Compartment Overview on page 5-12for
the location of the engine oil dipstick.
Turn off the engine and give the oil several minutes to
drain back into the oil pan. If you don't, the oil
dipstick might not show the actual level.
Pull out the dipstick and clean it with a paper towel or
cloth, then push it back in all the way. Remove it again,
keeping the tip down, and check the level.
5-13

5. Then replace the
pressure cap. Be sure
the cap is fully
installed.
If the LOW COOLANT message does not appear on the
Driver Information Center after two minutes, coolant is
at the proper ®ll level. If a LOW COOLANT message
does appear, repeat Steps 1 through 3 and reinstall the
pressure cap or see your dealer.Power Steering Fluid
5-32

When to Check Power Steering Fluid
It is not necessary to regularly check power steering ¯uid
unless you suspect there is a leak in the system or
you hear an unusual noise. A ¯uid loss in this system
could indicate a problem. Have the system inspected
and repaired. See
Engine Compartment Overview
on page 5-12for reservoir location.
How to Check Power Steering Fluid
Turn the vehicle off, let the engine compartment cool
down, wipe the cap and the top of the reservoir
clean, then unscrew the cap and wipe the dipstick with
a clean rag. Replace the cap and completely tighten
it. Then remove the cap again and look at the ¯uid level
on the dipstick.
The level should be at the FULL COLD mark. If
necessary, add only enough ¯uid to bring the level up to
the mark.
What to Use
To determine what kind of ¯uid to use, seeRecommended Fluids and Lubricants on page 6-11.
Always use the proper ¯uid. Failure to use the proper
¯uid can cause leaks and damage hoses and seals.
Windshield Washer Fluid
What to Use
When you need windshield washer ¯uid, be sure to read
the manufacturer's instructions before use. If you will
be operating your vehicle in an area where the
temperature may fall below freezing, use a ¯uid that has
sufficient protection against freezing. See
Engine
Compartment Overview on page 5-12for reservoir
location.
5-33

(A) P-Metric Tire:The United States version of a
metric tire sizing system. The letter ªPº as the
®rst character in the tire size means a passenger
vehicle tire engineered to standards set by the U. S.
Tire and Rim Association.
(B) Tire Width:The three-digit number indicates the
tire section width in millimeters from sidewall to sidewall.
(C) Aspect Ratio:A two-digit number that indicates
the tire height-to-width measurements. For example, if
the tire size aspect ratio is ª70,º as shown in item ªCº of
the illustration, it would mean that the tire's sidewall is
70% as high as it is wide.
(D) Construction Code:A letter code is used to
indicate the type of ply construction in the tire. The letter
ªRº means radial ply construction; the letter ªDº means
diagonal or bias ply construction; and the letter ªBº
means belted-bias ply construction.
(E) Rim Diameter:Diameter of the wheel in inches.
(F) Service Description:These characters represent
the load range and the speed rating of a tire. The
load range represents the load carrying capacity a tire is
certi®ed to carry. The load index can range from 1 to
279. The speed rating is the maximum speed a tire
is certi®ed to carry a load. Speed ratings range
from ªAº to ªZº.Tire Terminology and De®nitions
Air Pressure:The amount of air inside the tire pressing
outward on each square inch of the tire. Air pressure
is expressed in pounds per square inch (psi) or
kilopascal (kPa).
Accessory Weight:This means the combined weight
of optional accessories. Some examples of optional
accessories are, automatic transmission, power steering,
power brakes, power windows, power seats, and air
conditioning.
Aspect Ratio:The relationship of a tire's height to
its width.
Belt:A rubber coated layer of cords that is located
between the plies and the tread. Cords may be made
from steel or other reinforcing materials.
Bead:The tire bead contains steel wires wrapped by
steel cords that hold the tire onto the rim.
Bias Ply Tire:A pneumatic tire in which the plies are
laid at alternate angles less than 90 degrees to the
centerline of the tread.
Cold In¯ation Pressure:The amount of air pressure in
a tire, measured in pounds per square inch (psi)
before a tire has built up heat from driving. See
In¯ation - Tire Pressure on page 5-57.
5-53

Fuses Usage
1 Spare fuse
2 Spare fuse
3 Spare fuse
4 Spare fuse
5 Fuse Pull
6 Reverse Lamp
7 Starter/Crank
Fuses Usage
8 Parking Brake Solenoid A
9 Reverse Lamps
10 BTSI Solenoid, Column Lock
11 Not Used
12 Not Used
13 GMLAN Devices
14Rear Park Aid, Heated/Cooled
Seats, Windshield Wiper Relays
15 Door Locks
16 Engine Control Module
17 Interior Lights
18Air Bags, Passenger Air Bag Off
Switch
19 Not Used
20 OnStar
ž
21Adaptive Cruise Control (ACC),
Driver Door Switch
22Power Tilt Wheel, Telescopic
Steering Column, Memory Seat,
Driver Seat Switch, Retractable
Hardtop Switch
23 Ignition Switch, Intrusion Sensor
24 Stop Lamp
5-86

Fuses Usage
25Inside Rearview Mirror, Climate
Control System, Column Lock,
Power Sounder
26Instrument Panel Cluster, Head-Up
Display (HUD)
27 Radio, S-Band, CD Changer
28Tap-Up/Tap-Down Switch, Adaptive
Cruise Control (ACC) Switch, Cruise
Control Switch
29Climate Control System, Power
Sounder
30Rear Fog Lamps, Diagnostic Link
Connector
31 Power Folding Mirror
32Trunk Close Button, Parking Brake
Solenoid B
33 Power Seats
34 Door Controls
35 Run, Accessory PowerFuses Usage
36 Not Used
37 Not Used
38 RainsenseŸ
39Steering Wheel Control Button
Lights
40 Power Lumbar
41 Passenger's Side Heated Seat
42 Driver's Side Heated Seat
43 Not Used
44 Retractable Hardtop, Trunk Latch
45 Auxiliary Power
46 Cigar Lighter
47 Park Brake Hold
48 Park Brake Release
49 Not Used
50 Not Used
51 Not Used
52 Fuel Door
5-87