2006 CADILLAC XLR fuel cap

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

Capacities and Specications
The following approximate capacities are given in English and metric conversions. Please refer toRecommended
Fluids and Lubricants on page 7-11for more information.
ApplicationCapacities
English Metric
Automatic Transmission (Pan Removal and Replacement)
5-Speed Automatic 9.5 qt 9.0 L
6-Speed Automatic 6.5 qt 6.2 L
Cooling System 12.6 qt 12.0 L
Engine Oil with Filter – 4.4L V8 and 4.6L V8 Engines 8.0 qt 7.6 L
Fuel Tank 18.0 gal 68.0 L
Intercooler System 2.4 qt 2.3 L
Wheel Nut Torque 100 ft lb 140Y
All capacities are approximate. When adding, be sure to ll to the approximate level as recommended in this manual.
Recheck uid level after lling.
Engine Specications
Engine VIN Code Transmission Spark Plug Gap
4.4L V8 D Automatic 0.040 inches (1.02 mm)
4.6L V8 A Automatic 0.040 inches (1.02 mm)
6-92

Audio System(s) (cont.)
Understanding Radio Reception.....................3-84
XM™ Satellite Radio Antenna System............3-86
Automatic Door Lock.......................................2-11
Automatic Transmission
Fluid..........................................................6-21
Operation...................................................2-25
Avoid Point/Area, Edit......................................4-25
B
Battery..........................................................6-38
Exterior Lighting Battery Saver......................3-33
Run-Down Protection...................................3-34
Before Leaving on a Long Trip.........................5-24
Brake
Anti-Lock Brake System (ABS)........................ 5-7
Emergencies................................................ 5-9
Parking......................................................2-29
System Warning Light..................................3-54
Brakes..........................................................6-35
Braking........................................................... 5-6
Braking in Emergencies..................................... 5-9
Break-In, New Vehicle.....................................2-20
Bulb Replacement...........................................6-48
Headlamp Aiming........................................6-45
Buying New Tires...........................................6-64
C
California Fuel.................................................. 6-5
California Proposition 65 Warning....................... 6-3
Canadian Owners................................................ ii
Capacities and Specications............................6-92
Carbon Monoxide...................2-12, 2-34, 5-27, 5-37
Care of
Safety Belts................................................6-80
Your CD Player...........................................3-86
Your CDs ...................................................3-86
CD
Player........................................................4-69
Six-Disc Changer.........................................4-66
CD/DVD Player..............................................4-69
Center Console Storage Area...........................2-45
Chains, Tire...................................................6-70
Check
Engine Light...............................................3-58
Checking Things Under the Hood......................6-10
Chemical Paint Spotting...................................6-83
Child Restraints
Child Restraint Systems...............................1-23
Infants and Young Children...........................1-20
Lower Anchors and Tethers for Children..........1-27
Older Children.............................................1-18
Securing a Child Restraint in the Passenger
Seat Position...........................................1-28
2