2008 CADILLAC XLR fuel

Service and Appearance Care.......................... 6-1
Service
..................................................... 6-3
Fuel
......................................................... 6-5
Checking Things Under the Hood
...............6-10
Rear Axle
...............................................6-46
Headlamp Aiming
.....................................6-47
Bulb Replacement
....................................6-50
Windshield Replacement
...........................6-50
Windshield Wiper Blade Replacement
.........6-50
Tires
......................................................6-52
Appearance Care
.....................................6-80Vehicle Identication
.................................6-89
Electrical System
......................................6-89
Capacities and Specications
.....................6-97
Maintenance Schedule..................................... 7-1
Maintenance Schedule
................................ 7-2
Customer Assistance Information.................... 8-1
Customer Assistance and Information
........... 8-2
Reporting Safety Defects
...........................8-15
Vehicle Data Recording and Privacy
...........8-17
Index................................................................ 1

NEUTRAL (N):In this position, your engine does not
connect with the wheels. To restart when you are
already moving, use NEUTRAL (N) only. Also, use
NEUTRAL (N) when your vehicle is being towed.
Use Neutral (N) if the vehicle must be moved with the
engine off for short distances. Please seeTowing
Your Vehicle on page 5-27.
{CAUTION:
Shifting into a drive gear while the engine is
running at high speed is dangerous. Unless
your foot is rmly on the brake pedal, your
vehicle could move very rapidly. You could
lose control and hit people or objects. Do not
shift into a drive gear while your engine is
running at high speed.
Notice:Shifting out of PARK (P) or NEUTRAL (N)
with the engine running at high speed may damage
the transmission. The repairs would not be
covered by your warranty. Be sure the engine is not
running at high speed when shifting your vehicle.DRIVE (D):This position is for normal driving.
It provides the best fuel economy for your vehicle.
If you need more power for passing and you are:
Going less than about 35 mph (56 km/h),
push the accelerator pedal about halfway down.
Going about 35 mph (56km/h) or more, push the
accelerator all the way down.
Downshifting the transmission in slippery road conditions
could result in skidding, see “Skidding” underLoss of
Control on page 5-12.
Notice:Spinning the tires or holding the vehicle
in one place on a hill using only the accelerator
pedal may damage the transmission. The repair will
not be covered by your warranty. If you are stuck,
do not spin the tires. When stopping on a hill,
use the brakes to hold the vehicle in place.
Maximum engine speed is limited to protect driveline
components from improper operation.
2-28

Voltmeter Gage............................................3-50
Brake System Warning Light..........................3-50
Antilock Brake System
Warning Light...........................................3-51
Traction Control System (TCS)
Warning Light...........................................3-52
Engine Coolant Temperature Gage..................3-53
Tire Pressure Light.......................................3-53
Malfunction Indicator Lamp.............................3-54
Engine Oil Pressure Gage.............................3-57
Security Light...............................................3-58
Fog Lamp Light............................................3-58
Lights On Reminder......................................3-58
Highbeam On Light.......................................3-58
Fuel Gage...................................................3-59Driver Information Center (DIC).......................3-60
DIC Operation and Displays...........................3-60
DIC Warnings and Messages.........................3-63
Other Messages...........................................3-74
DIC Vehicle Personalization............................3-76
Trip Computer................................................3-80
Oil Life Indicator...........................................3-80
Audio System(s).............................................3-81
Theft-Deterrent Feature..................................3-82
Audio Steering Wheel Controls.......................3-82
Radio Reception...........................................3-84
Care of Your CDs.........................................3-85
Care of the CD Player...................................3-85
Diversity Antenna System..............................3-85
XM™ Satellite Radio Antenna System.............3-85
Section 3 Instrument Panel
3-2

Instrument Panel Cluster
Your instrument panel cluster and Driver Information Center (DIC) are designed to let you know at a glance how the
vehicle is running. You will know how fast you are going, about how much fuel you have left and many other things
you will need to know to drive safely and economically. The instrument panel cluster indicator warning lights, gages
and DIC messages are explained on the following pages.
United States Base Cluster shown, Canada and Uplevel similar
3-44

Speedometer and Odometer
Your speedometer lets you see your speed in either
miles per hour (mph) or kilometers per hour (km/h).
There is only one scale for mph and km/h.
Use the Driver Information Center (DIC) controls to
switch between mph and km/h. SeeDIC Operation
and Displays on page 3-60for more information.
The cluster will calculate the proper speed and move
the needle to the correct position. Either the MPH
or the km/h telltale will illuminate, depending on which
measurement you choose.
The odometer is part of the Driver Information
Center (DIC). SeeDIC Operation and Displays
on page 3-60for more information.
Trip Odometer
The trip odometer is part of the Driver Information
Center (DIC). SeeDIC Operation and Displays on
page 3-60for more information.
Tachometer
The tachometer displays the engine speed in thousands
of revolutions per minute (rpm).
Fuel will shut off at about 6700 rpm.
If you continue to drive your vehicle at the fuel shut off
rpm, you could damage your engine. Be sure to
operate your vehicle below the fuel shut off rpm or
reduce your rpm quickly when the fuel shuts off.
3-45

Malfunction Indicator Lamp
Check Engine Light
A computer system called OBD II (On-Board
Diagnostics-Second Generation) monitors operation
of the fuel, ignition, and emission control systems.
It makes sure that emissions are at acceptable levels
for the life of the vehicle, helping to produce a cleaner
environment.
The check engine light
comes on to indicate
that there is an OBD II
problem and service
is required.
Malfunctions often are indicated by the system before
any problem is apparent. This can 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 a while, the emission controls
might not work as well, your vehicle’s fuel economymight not be as good, and the engine might not
run as smoothly. This could lead to costly repairs
that might 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 can cause this light to come on.
Modications to these systems could lead to costly
repairs not covered by your warranty. This could
also result in a failure to pass a required Emission
Inspection/Maintenance test. SeeAccessories
and Modifications on page 6-3.
This light comes on briey, as a check to show it is
working, as you start the engine. If the light does not
come on, have it repaired. This light also comes
on during a malfunction in one of two ways:
Light Flashing— A misre condition has been
detected. A misre increases vehicle emissions
and could damage the emission control system
on your vehicle. Diagnosis and service might
be required.
Light On Steady— An emission control system
malfunction has been detected on your vehicle.
Diagnosis and service might be required.
3-54

If the Light Is Flashing
The following can prevent more serious damage to
your vehicle:
Reduce vehicle speed.
Avoid hard accelerations.
Avoid steep uphill grades.
If the light stops ashing and remains on steady,
see “If the Light Is On Steady” following.
If the light continues to ash, when it is safe to do so,
stop the vehicle. Find a safe place to park the vehicle.
Turn the engine off, wait at least 10 seconds and restart
the engine. If the light remains on steady, see “If the
Light Is On Steady” following. If the light is still ashing,
follow the previous steps, and see your dealer/retailer
for service as soon as possible.
If the Light Is On Steady
You might be able to correct the emission system
malfunction by considering the following:
Did you recently put fuel into your vehicle?
If so, reinstall the fuel cap, making sure to fully install the
cap. SeeFilling the Tank on page 6-7. The diagnostic
system can determine if the fuel cap has been left off orimproperly installed. A loose or missing fuel cap allows
fuel to evaporate into the atmosphere. A few driving trips
with the cap properly installed should turn the light off.
Did you just drive through a deep puddle of water?
If so, your vehicle’s electrical system might be wet. The
condition is usually corrected when the electrical system
dries out. A few driving trips should turn the light off.
Have you recently changed brands of fuel?
If so, be sure to fuel your vehicle with quality fuel. See
Gasoline Octane on page 6-5. Poor fuel quality causes
the engine not to run as efficiently as designed. You
might notice this as stalling after start-up, stalling when
you put the vehicle into gear, misring, hesitation on
acceleration, or stumbling on acceleration — these
conditions might go away once the engine is warmed up.
This will be detected by the system and cause the
light to turn on.
If you experience one or more of these conditions,
change the fuel brand you use. It will require at least
one full tank of the proper fuel to turn the light off.
If none of the above steps have made the light turn
off, your dealer/retailer can check the vehicle. Your
dealer/retailer has the proper test equipment and
diagnostic tools to x any mechanical or electrical
problems that might have developed.
3-55

Fuel Gage
Your fuel gage tells
you about how much
fuel you have left when
the ignition is on.
When the needle approaches the low fuel symbol,
LOW FUEL will appear on the Driver Information
Center (DIC) display. At this time, you still have a
little fuel left, but you should get more soon.Press RESET to acknowledge a DIC message(s).
Pressing RESET will also turn off a DIC message
but the LOW FUEL message will come on again in
10 minutes if you have not added fuel to the vehicle.
Here are ve things that some owners ask about.
All these things are normal and do not indicate that
anything is wrong with the fuel gage.
At the gas station, the gas pump shuts off before
the gage reads the full symbol.
It takes more (or less) fuel to ll up than the
gage reads. For example, the gage reads half full,
but it took more (or less) than half of the tank’s
capacity to t it.
The gage pointer may move while cornering,
braking or speeding up.
The gage may not indicate the tank is empty when
the ignition is turned off.
The gage reading may change slightly within the
rst several minutes after starting the vehicle.
3-59