fuel pressure CADILLAC XLR 2005 1.G Owners Manual

Tire Pressure Light
This light should come on
briey as you start the
engine. It will then come on
only when a at or low
tire pressure condition
exists.
SeeTire Pressure Monitor System on page 6-55for
more information.
Malfunction Indicator Lamp
Check Engine Light
Your vehicle is equipped
with a computer which
monitors operation of the
fuel, ignition, and emission
control systems.
This system is called OBD II (On-Board
Diagnostics-Second Generation) and is intended to
assure that emissions are at acceptable levels for thelife of the vehicle, helping to produce a cleaner
environment. The CHECK ENGINE light comes on to
indicate that there is a problem and service is required.
Malfunctions often will be indicated by the system
before any problem is apparent. This may prevent more
serious damage to your vehicle. This system is also
designed to assist your service technician in correctly
diagnosing any malfunction.
Notice:If you keep driving your vehicle with this
light on, after awhile, your emission controls
may not work as well, your fuel economy may not
be as good, and your engine may not run as
smoothly. This could lead to costly repairs that may
not be covered by your warranty.
Notice:Modications made to the engine,
transmission, exhaust, intake, or fuel system of
your vehicle or the replacement of the original tires
with other than those of the same Tire Performance
Criteria (TPC) can affect your vehicle’s emission
controls and may cause this light to come on.
Modications to these systems could lead to costly
repairs not covered by your warranty. This may
also result in a failure to pass a required Emission
Inspection/Maintenance test.
3-55

You can use the Driver Information Center (DIC) to
display more detailed fuel information. While scrolling
through the DIC, you will also nd:
AVERAGE XX.X MPG (Average Miles Per Gallon):
The fuel economy calculated for the last 20 gallons
(76 L) of fuel used, or since you last reset the display.
INST XX.X MPG (Instantaneous Miles Per Gallon):
The fuel economy calculated for your current driving
conditions.
RANGE XXX MI:The approximate distance you can
drive before refueling.
SeeDIC Controls and Displays on page 3-61for more
information.
You should reset the fuel information display every time
you refuel. To reset AVERAGE, use the information up or
down button to scroll to AVE FUEL ECON and hold the
reset button. RANGE will automatically reset.
Driver Information Center (DIC)
This display gives you the status of many of your
vehicle’s systems. The DIC is also used to display driver
personalization features and warning/status messages.
All messages will appear in the DIC display, located
at the bottom of the instrument panel cluster.
DIC Controls and Displays
The Driver Information
Center (DIC) buttons are
located to the right of
the steering wheel on the
instrument panel, near
the air outlets.
«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.
3-61

Once you are moving on the freeway, make certain you
allow a reasonable following distance.
Expect to move slightly slower at night.
When you want to leave the freeway, move to the
proper lane well in advance. If you miss your exit, do
not, under any circumstances, stop and back up. Drive
on to the next exit.
The exit ramp can be curved, sometimes quite sharply.
The exit speed is usually posted. Reduce your speed
according to your speedometer, not to your sense
of motion. After driving for any distance at higher
speeds, you may tend to think you are going slower
than you actually are.
Before Leaving on a Long Trip
Make sure you are ready. Try to be well rested. If you
must start when you are not fresh — such as after
a day’s work — do not plan to make too many miles that
rst part of the journey. Wear comfortable clothing
and shoes you can easily drive in.
Is your vehicle ready for a long trip? If you keep it
serviced and maintained, it is ready to go. If it needs
service, have it done before starting out. Of course, you
will nd experienced and able service experts in GM
dealerships all across North America. They will be ready
and willing to help if you need it.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?
5-22

Service............................................................6-3
Doing Your Own Service Work.........................6-4
Adding Equipment to the Outside of Your
Vehicle......................................................6-5
Fuel................................................................6-5
Gasoline Octane............................................6-5
Gasoline Specications....................................6-5
California Fuel...............................................6-5
Additives.......................................................6-6
Fuels in Foreign Countries...............................6-6
Filling Your 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...................................................6-13
Engine Oil Life System..................................6-16
Engine Air Cleaner/Filter................................6-18
Automatic Transmission Fluid.........................6-20
Engine Coolant.............................................6-20
Coolant Surge Tank Pressure Cap..................6-23
Engine Overheating.......................................6-23
Overheated Engine Protection
Operating Mode........................................6-25
Cooling System............................................6-26
Power Steering Fluid.....................................6-31Windshield Washer Fluid................................6-32
Brakes........................................................6-33
Battery........................................................6-36
Jump Starting...............................................6-37
Rear Axle.......................................................6-41
Headlamp Aiming...........................................6-42
Headlamp Vertical Aiming..............................6-43
Bulb Replacement..........................................6-44
Windshield Wiper Blade Replacement..............6-45
Tires..............................................................6-46
Tire Sidewall Labelling...................................6-47
Tire Terminology and Denitions.....................6-49
Run-Flat Tires..............................................6-52
Ination - Tire Pressure.................................6-53
Tire Pressure Monitor System.........................6-55
Tire Inspection and Rotation...........................6-57
When It Is Time for New Tires.......................6-58
Buying New Tires.........................................6-58
Uniform Tire Quality Grading..........................6-59
Wheel Alignment and Tire Balance..................6-61
Wheel Replacement......................................6-61
Tire Chains..................................................6-63
Lifting Your Vehicle.......................................6-64
If a Tire Goes Flat........................................6-68
Section 6 Service and Appearance Care
6-1

A. Battery. SeeBattery on page 6-36.
B. Passenger Compartment Air Filter. SeePassenger
Compartment Air Filter on page 3-45.
C. Underhood Fuse Block. SeeUnderhood Fuse Block
on page 6-83.
D. Power Steering Fluid. SeePower Steering Fluid on
page 6-31.
E. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 6-18.
F. Engine Oil Fill Cap. See “When to Add Engine Oil”
underEngine Oil on page 6-13.
G. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 6-13.
H. Brake Master Cylinder Reservoir. See “Brake Fluid”
underBrakes on page 6-33.
I. Engine Coolant Surge Tank and Pressure Cap. See
Coolant Surge Tank Pressure Cap on page 6-23.
J. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” underWindshield Washer Fluid
on page 6-32.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 LOW OIL LEVEL and
LOW OIL PRESSURE underDIC Warnings and
Messages on page 3-64.
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 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.
6-13

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 6-53.
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 5-30.
GAWR FRT:Gross Axle Weight Rating for the front
axle, seeLoading Your Vehicle on page 5-30.
GAWR RR:Gross Axle Weight Rating for the rear axle,
seeLoading Your Vehicle on page 5-30.
6-49

{CAUTION:
Run-at tires are constructed differently than
other tires and could explode during improper
service. You or others could be injured or
killed if you attempt to repair, replace,
dismount, or mount a run-at tire. Let only an
authorized run-at service center repair,
replace, dismount and mount run-at tires.
The valve stems on your run-at tires have sensors that
are part of the Tire Pressure Monitor System (TPMS).
SeeTire Pressure Monitor System on page 6-55. These
sensors contain batteries which are designed to last
for 10 years under normal driving conditions. See your
dealer if you ever need to have a wheel replaced,
or if the sensors ever need replacement.
Notice:Using liquid sealants can damage the tire
valves and tire pressure monitor sensors in your
run-at tires. This damage would not be covered
by warranty. Don’t use liquid sealants in your
run-at tires.
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 hazards
6-53

Tire Pressure Monitor System
The Tire Pressure Monitor (TPM) System on your vehicle,
uses radio and sensor technology to check tire pressure
levels. Sensors, mounted on each tire and wheel
assembly transmit tire pressure readings to a receiver
located in the vehicle. The TPM sensors transmit tire
pressure readings once every 60 seconds while the
vehicle is being driven and once every 60 minutes when
the vehicle is stationary for more than 15 minutes. Using
the Driver Information Center (DIC), tire pressure levels
can be viewed by the driver. The TPM system also uses
the DIC to warn the driver when air pressure, in one or
more tires, falls below 25 psi (172 kPa) or is above
42 psi (290 kPa). For additional information and details
about the DIC operation and displays seeDIC Controls
and Displays on page 3-61andDIC Warnings and
Messages on page 3-64.
A low tire warning light also appears on the instrument
panel cluster when a low tire condition exists. The
DIC message, CHECK TIRE PRESSURE and the low
tire pressure warning light will be shown each time
the engine is started and stay on until the low tire
condition is corrected.When the tire pressure
monitoring system warning
light is lit, one or more
of your tires is signicantly
under-inated.
You should stop and check your tires as soon as
possible, and inate them to the proper pressure as
indicated on the vehicle’s tire information placard.
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. Each
tire, including the spare, should be checked monthly
when cold and set to the recommended ination pressure
as specied in the vehicle placard and owner’s manual.
The Tire and Loading Information Label (tire information
placard) is on the rear edge of the driver’s door, below the
door latch. 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 5-30.
Your vehicle’s TPM system can alert you about a low or
high tire pressure condition but it does not replace
normal tire maintenance. SeeTire Inspection and
Rotation on page 6-57
6-55

Owner Checks and Services
These owner checks and services should be performed
at the intervals specied to help ensure the safety,
dependability and emission control performance of your
vehicle. Your GM Goodwrench dealer can assist you
with these checks and services.
Be sure any necessary repairs are completed at once.
Whenever any uids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown
inRecommended Fluids and Lubricants on page 7-11.
At Each Fuel Fill
It is important to perform these underhood checks at
each fuel ll.
Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary. SeeEngine Oil on page 6-13for further
details.
Notice:It is important to check your oil regularly
and keep it at the proper level. Failure to keep your
engine oil at the proper level can cause damage
to your engine not covered by your warranty.
Engine Coolant Level Check
Check the engine coolant level and add
DEX-COOL®coolant mixture if necessary. SeeEngine
Coolant on page 6-20for further details.
Windshield Washer Fluid Level Check
Check the windshield washer uid level in the windshield
washer tank and add the proper uid if necessary.
At Least Once a Month
Tire Inspection and Ination Check
Visually inspect your tires for wear and make sure tires
are inated to the correct pressures. SeeTires on
page 6-46for further details.
7-8

Enter Destination............................................4-21
Entry/Exit Lighting...........................................3-33
Event Data Recorders (EDR)............................. 8-9
Extender, Safety Belt.......................................1-18
Exterior Lamps...............................................3-28
Exterior Lighting Battery Saver..........................3-32
F
Filter
Engine Air Cleaner......................................6-18
Finish Damage...............................................6-77
Flash-to-Pass................................................... 3-9
Flat Tire........................................................6-68
Floor Mats.....................................................2-43
Fluid
Automatic Transmission................................6-20
Power Steering...........................................6-31
Windshield Washer......................................6-32
Fog Lamp Light..............................................3-59
Fog Lamps....................................................3-31
Fuel............................................................... 6-5
Additives...................................................... 6-6
California Fuel.............................................. 6-5
Filling a Portable Fuel Container....................6-10
Filling Your Tank........................................... 6-7
Fuels in Foreign Countries.............................. 6-6
Gage.........................................................3-60Fuel (cont.)
Gasoline Octane........................................... 6-5
Gasoline Specications.................................. 6-5
Fuses
Fuses and Circuit Breakers...........................6-80
Instrument Panel Fuse Block.........................6-81
Underhood Fuse Block.................................6-83
Windshield Wiper.........................................6-80G
Gage
Engine Coolant Temperature.........................3-54
Engine Oil Pressure.....................................3-58
Fuel..........................................................3-60
Speedometer..............................................3-48
Tachometer.................................................3-48
Voltmeter Gage...........................................3-51
Garage Door Opener.......................................2-38
Gasoline
Octane........................................................ 6-5
Specications............................................... 6-5
Getting Started
Getting Started, Navigation............................. 4-4
Global Positioning System (GPS)......................4-42
Glove Box.....................................................2-42
GM Mobility Reimbursement Program.................. 8-5
5