2006 CADILLAC XLR fuel pressure

Tire Pressure Light.......................................3-57
Malfunction Indicator Lamp.............................3-58
Engine Oil Pressure Gage.............................3-61
Security Light...............................................3-62
Fog Lamp Light............................................3-62
Lights On Reminder......................................3-62
Highbeam On Light.......................................3-62
Fuel Gage...................................................3-63
Driver Information Center (DIC).......................3-64
DIC Controls and Displays.............................3-64
DIC Warnings and Messages.........................3-67
Other Messages...........................................3-77
DIC Vehicle Personalization............................3-78Trip Computer................................................3-82
Oil Life Indicator...........................................3-82
Audio System(s).............................................3-82
Theft-Deterrent Feature..................................3-83
Audio Steering Wheel Controls.......................3-84
Radio Reception...........................................3-84
Care of Your CDs.........................................3-86
Care of the CD Player...................................3-86
Diversity Antenna System..............................3-86
XM™ Satellite Radio Antenna System
(Trunk Mounted)........................................3-86
XM™ Satellite Radio Antenna System
(Diversity System).....................................3-86
Section 3 Instrument Panel
3-2

«4ª(Information):Press the top or bottom of this
button to scroll through the available features which
include the odometer, trip odometers, fuel range, miles
per gallon, average speed, timer, tire pressure, and
remaining oil life.
+(Interior Lamps):Press this button to turn the
interior lamps on and off.
OPTIONS:Press this button to choose personal
options that are available on your vehicle.
RESET:Press this button to reset a feature. It is also
used to switch between English and Metric options.
Use the information button to scroll through the
following options:
ODOMETER:This feature shows how far the vehicle
has been driven in either miles (mi) or kilometers (km).
Use the ENG/METRIC feature to switch between
English and Metric units.
TRIP A:This feature will record the distance traveled
since the last time it was reset. Press and hold the
RESET button to return to zero. If your vehicle is rst
sold in the United States, the trip odometer will return
to zero after 999.9 miles (1 609 km). If your vehicle
is rst sold in Canada, the trip odometer will return to
zero after 1,242 miles (1 999 km).TRIP B:This feature allows you to record the distance
traveled during a second trip and functions the same
as TRIP A.
RANGE xxx MI:This feature shows about how many
miles (mi) or kilometers (km) you can drive without
relling your fuel tank. Once the range drops below
40 miles (64 km) remaining, the display will show LOW.
If the vehicle has been idling for a long time, the
range displayed on the DIC could be abnormally low.
The vehicle must be driven 5-10 miles (8-16 km) to
get an accurate reading.
AVERAGE xx.x MPG (Average Miles Per Gallon):
This feature shows the approximate fuel economy the
vehicle has averaged since the last time the value was
reset. To reset the average miles per gallon, press the
information button to display AVERAGE xx.x MPG,
then press and hold the RESET button until AVERAGE
00.0 MPG is displayed.
INST xx.x MPG (Instantaneous Miles Per Gallon):
This feature shows the instantaneous fuel economy
which varies with your driving conditions, such as
acceleration, braking, and the grade of the road being
traveled. The RESET button does not function in
this mode.
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Here are some things you can check before a trip:
Windshield Washer Fluid:Is the reservoir full?
Are all windows clean inside and outside?
Wiper Blades:Are they in good shape?
Fuel, Engine Oil, Other Fluids:Have you checked
all levels?
Lamps:Are they all working? Are the lenses clean?
Tires:They are vitally important to a safe,
trouble-free trip. Is the tread good enough for
long-distance driving? Are the tires all inated
to the recommended pressure?
Weather Forecasts:What is the weather outlook
along your route? Should you delay your trip a
short time to avoid a major storm system?
Maps:Do you have up-to-date maps?
Highway Hypnosis
Is there actually such a condition as highway hypnosis?
Or is it just plain falling asleep at the wheel? Call it
highway hypnosis, lack of awareness, or whatever.
There is something about an easy stretch of road with
the same scenery, along with the hum of the tires on
the road, the drone of the engine, and the rush of
the wind against the vehicle that can make you sleepy.
Do not let it happen to you! If it does, your vehicle
can leave the road in less than a second, and you
could crash and be injured.
What can you do about highway hypnosis? First, be
aware that it can happen.
Then here are some tips:
Make sure your vehicle is well ventilated, with a
comfortably cool interior.
Keep your eyes moving. Scan the road ahead and
to the sides. Check your rearview mirrors and your
instruments frequently.
If you get sleepy, pull off the road into a rest,
service, or parking area and take a nap, get some
exercise, or both. For safety, treat drowsiness
on the highway as an emergency.
5-25

Service............................................................6-3
Accessories and Modications..........................6-3
California Proposition 65 Warning.....................6-3
Doing Your Own Service Work.........................6-4
Adding Equipment to the Outside
of Your Vehicle...........................................6-4
Fuel................................................................6-4
Gasoline Octane............................................6-5
Gasoline Specications....................................6-5
California Fuel...............................................6-5
Additives.......................................................6-6
Fuels in Foreign Countries...............................6-6
Filling the Tank..............................................6-7
Filling a Portable Fuel Container.....................6-10
Checking Things Under the Hood....................6-10
Hood Release..............................................6-11
Engine Compartment Overview.......................6-12
Engine Oil...................................................6-15
Engine Oil Life System..................................6-18
Engine Air Cleaner/Filter................................6-20
Automatic Transmission Fluid.........................6-21
Engine Coolant.............................................6-22
Coolant Surge Tank Pressure Cap..................6-25
Engine Overheating.......................................6-25
Overheated Engine Protection
Operating Mode........................................6-27Cooling System............................................6-28
Power Steering Fluid.....................................6-33
Windshield Washer Fluid................................6-34
Brakes........................................................6-35
Battery........................................................6-38
Jump Starting...............................................6-39
Rear Axle.......................................................6-44
Headlamp Aiming...........................................6-45
Headlamp Vertical Aiming..............................6-46
Bulb Replacement..........................................6-48
Windshield Replacement.................................6-49
Windshield Wiper Blade Replacement..............6-49
Tires..............................................................6-50
Tire Sidewall Labeling...................................6-52
Tire Terminology and Denitions.....................6-54
Run-Flat Tires..............................................6-56
Ination - Tire Pressure.................................6-58
Tire Pressure Monitor System.........................6-59
Tire Inspection and Rotation...........................6-62
When It Is Time for New Tires.......................6-63
Buying New Tires.........................................6-64
Different Size Tires and Wheels......................6-65
Uniform Tire Quality Grading..........................6-66
Wheel Alignment and Tire Balance..................6-67
Wheel Replacement......................................6-67
Section 6 Service and Appearance Care
6-1

A. Battery. SeeBattery on page 6-38Battery.
B. Passenger Compartment Air Filter. SeePassenger
Compartment Air Filter on page 3-47Passenger
Compartment Air Filter.
C. Underhood Fuse Block. SeeUnderhood Fuse Block
on page 6-89Underhood Fuse Block.
D. Power Steering Fluid. SeePower Steering Fluid on
page 6-33Power Steering Fluid.
E. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 6-20Engine Air Cleaner/Filter.
F. Engine Oil Fill Cap. See “When to Add Engine Oil”
underEngine Oil on page 6-15Engine Oil.
G. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 6-15Engine Oil.
H. Brake Master Cylinder Reservoir. See “Brake Fluid”
underBrakes on page 6-35Brakes.
I. Engine Coolant Surge Tank and Pressure Cap.
SeeCoolant Surge Tank Pressure Cap on page 6-25
Coolant Surge Tank Pressure Cap.
J. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” underWindshield Washer Fluid
on page 6-34Windshield Washer Fluid.Engine Oil
If the LOW OIL LEVEL or LOW OIL PRESSURE
message on the Driver Information Center appears
(DIC), it means you need to check your engine oil level
right away. For more information, see LOW OIL LEVEL
and LOW OIL PRESSURE underDIC Warnings and
Messages on page 3-67.
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.
SeeEngine Compartment Overview on page 6-12for
the location of the engine oil dipstick.
1. Turn off the engine and give the oil several minutes
to drain back into the oil pan. If you do not do this,
the oil dipstick might not show the actual level.
2. 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.
6-15

Tire Terminology and Denitions
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 Ination Pressure:The amount of air pressure
in a tire, measured in pounds per square inch (psi)
or kilopascals (kPa) before a tire has built up heat from
driving. SeeInation - Tire Pressure on page 6-58.Curb Weight:This means the weight of a motor
vehicle with standard and optional equipment including
the maximum capacity of fuel, oil, and coolant, but
without passengers and cargo.
DOT Markings:A code molded into the sidewall of a
tire signifying that the tire is in compliance with the
U.S. Department of Transportation (DOT) motor vehicle
safety standards. The DOT code includes the Tire
Identication Number (TIN), an alphanumeric designator
which can also identify the tire manufacturer, production
plant, brand, and date of production.
GVWR:Gross Vehicle Weight Rating, seeLoading
Your Vehicle on page 5-33.
GAWR FRT:Gross Axle Weight Rating for the front
axle, seeLoading Your Vehicle on page 5-33.
GAWR RR:Gross Axle Weight Rating for the rear axle,
seeLoading Your Vehicle on page 5-33.
Intended Outboard Sidewall:The side of an
asymmetrical tire, that must always face outward when
mounted on a vehicle.
Kilopascal (kPa):The metric unit for air pressure.
Light Truck (LT-Metric) Tire:A tire used on light duty
trucks and some multipurpose passenger vehicles.
6-54

Ination - Tire Pressure
Tires need the correct amount of air pressure to operate
effectively.
Notice:Do not let anyone tell you that
under-ination or over-ination is all right. It is not.
If your tires do not have enough air (under-ination),
you can get the following:
Too much exing
Too much heat
Tire overloading
Premature or irregular wear
Poor handling
Reduced fuel economy
If your tires have too much air (over-ination), you
can get the following:
Unusual wear
Poor handling
Rough ride
Needless damage from road hazardsA Tire and Loading Information label is attached to the
center pillar, below the driver’s door latch. This label
shows your vehicle’s original equipment tires and
the correct ination pressures for your tires when they
are cold. The recommended cold tire ination pressure,
shown on the label, is the minimum amount of air
pressure needed to support your vehicle’s maximum
load carrying capacity.
For additional information regarding how much weight
your vehicle can carry, and an example of the tire
and loading information label, seeLoading Your Vehicle
on page 5-33. How you load your vehicle affects
vehicle handling and ride comfort, never load your
vehicle with more weight than it was designed to carry.
When to Check
Check your tires once a month or more.
How to Check
Use a good quality pocket-type gage to check tire
pressure. You cannot tell if your tires are properly inated
simply by looking at them. Radial tires may look properly
inated even when they are underinated. Check the
tire’s ination pressure when the tires are cold.
Cold means your vehicle has been sitting for at least
three hours or driven no more than 1 mile (1.6 km).
6-58

Each tire, including the spare (if provided), should be
checked monthly when cold and inated to the ination
pressure recommended by the vehicle manufacturer
on the vehicle placard or tire ination pressure label.
(If your vehicle has tires of a different size than the
size indicated on the vehicle placard or tire ination
pressure label, you should determine the proper
tire ination pressure for those tires.)
As an added safety feature,
your vehicle has been
equipped with a tire
pressure monitoring system
(TPMS) that illuminates a
low tire pressure telltale
when one or more of your
tires is signicantly
under-inated.Accordingly, when the low tire pressure telltale
illuminates, you should stop and check your tires as
soon as possible, and inate them to the proper
pressure. Driving on a signicantly under-inated tire
causes the tire to overheat and can lead to tire failure.
Under-ination also reduces fuel efficiency and tire
tread life, and may affect the vehicle’s handling
and stopping ability.
Please note that the TPMS is not a substitute for proper
tire maintenance, and it is the driver’s responsibility to
maintain correct tire pressure, even if under-ination has
not reached the level to trigger illumination of the
TPMS low tire pressure telltale.
The Tire and Loading Information Label (tire information
placard) is attached to the vehicle’s b-pillar. This label
shows the size of your vehicle’s original tires and the
correct ination pressure for your vehicle’s tires when
they are cold. SeeLoading Your Vehicle on page 5-33.
6-60