2004 CADILLAC XLR run flat

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

Run-Flat Tires
Your vehicle, when new, had run-¯at tires. There's no
spare tire, no tire changing equipment and no place
to store a tire in the vehicle. Run-¯at tires perform so
well without any air that a Tire Pressure Monitor
(TPM) is used to alert you if a tire has lost pressure.
If a tire goes ¯at, you won't need to stop on the side of
the road to change the tire. You can just keep on
driving. The shorter the distance you drive and the
slower the speed, the greater the chance that the tire will
not have to be replaced. If you drive on a de¯ated
run- ¯at tire for 50 miles (80 km) or less and at speeds
of 55 mph (90 km/h) or less, there is a good chance
that the tire can be repaired. The tire can operate
effectively with no air pressure for up to 200 miles
(320 km) at speeds up to 55 mph (90 km/h), but the tire
would then have to be replaced. When a tire is ®lled
with air, it provides a cushion between the road and the
wheel. Because you won't have this cushion when
driving on a de¯ated tire, try to avoid potholes that could
damage your wheel and require replacement of it.Some road hazards can damage a tire beyond repair.
This damage could occur even before you've driven
on the tire in a de¯ated condition. When a tire has been
damaged, or if you've driven any distance on a
run-¯at tire, check with an authorized run-¯at tire service
center to determine whether the tire can be repaired
or should be replaced. To maintain your vehicle's run-¯at
feature, all replacement tires must be self-supporting
tires. As soon as possible, contact the nearest
authorized GM or run-¯at servicing facility for inspection
and repair or replacement. To locate the nearest GM
or run-¯at servicing facility, call Roadside Assistance.
For phone numbers and Roadside Service details
see
Roadside Service on page 7-5.
{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.
5-56

3. Lift the vehicle with the jack, making sure the jack
spans at least two of the crossmember ribs (B).
For more information, see
Doing Your Own Service
Work on page 5-4.
If a Tire Goes Flat
It's unusual for a tire to ªblow outº while you're driving,
especially if you maintain your tires properly. If air
goes out of a tire, it's much more likely to leak out
slowly. See
Tires on page 5-50for additional
information.
Your vehicle, when new, had run-¯at tires. This type of
tire can operate effectively with no air pressure, so
you won't need to stop on the side of the road to change
a ¯at tire. You can just keep on driving. The shorter
the distance you drive and the slower the speed,
the greater the chance that the run-¯at tire will not have
to be replaced. Run-¯at tires perform so well without
any air that a Tire Pressure Monitor (TPM) is used
to alert you if a tire has lost pressure. See
Run-Flat Tires
on page 5-56andTire Pressure Monitor System on
page 5-58.
5-73

{CAUTION:
When the TIRE FLAT MAX SPD 55, REDUCED
HNDLG message is displayed on the Driver
Information Center, your vehicle's handling
capabilities will be reduced during severe
maneuvers. If you drive too fast, you could
lose control of your vehicle. You or others
could be injured. Don't drive over 55 mph
(90 km/h) when the TIRE FLAT MAX SPD 55,
REDUCED HNDLG message is displayed. Drive
cautiously and check your tire pressures as
soon as you can.
If the TPM system detects a tire pressure below 5 psi
(34 kPa), the TIRE FLAT MAX SPD 55, REDUCED
HNDLG warning message is displayed on the Driver
Information Center (DIC). See
DIC Controls and
Displays on page 3-55andDIC Warnings and Messages
on page 3-57for information and details about the
DIC operation and displays.
{CAUTION:
Special tools and procedures are required to
service a run-¯at tire. If these special tools and
procedures aren't used you or others could be
injured and your vehicle could be damaged.
Always be sure the proper tools and
procedures, as described in the service
manual, are used.
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.
To order a service manual, see
Service Publications
Ordering Information on page 7-11.
If a tire goes ¯at, the stability control system will turn on
automatically even if it was disabled by the driver.
When a ¯at tire condition exists the Stabilitrak
žsystem
cannot be turned off. SeeStabilitrakžSystem on
page 4-11.
5-74

R
Radios..........................................................3-70
Care of Your CD Player...............................3-72
Care of Your CDs........................................3-72
Navigation/Radio System..............................3-71
Theft-Deterrent............................................3-71
Understanding Reception..............................3-72
RainsenseŸ Wipers.......................................... 3-8
Raising the Retractable Hardtop........................2-45
Reaching Roadside Service............................... 7-6
Reading Lamps..............................................3-26
Rear Axle......................................................5-45
Limited-Slip.................................................4-10
Rear Storage Area..........................................2-43
Rear Window Defogger....................................3-37
Rearview Mirror, Automatic Dimming
with OnStar
ž..............................................2-33
Recommended Fluids and Lubricants.................6-11
Recreational Vehicle Towing.............................4-32
Replacing Brake System Parts..........................5-37
Reporting Safety Defects
Canadian Government..................................7-10
General Motors...........................................7-11
United States Government............................7-10
Reprogramming a Single HomeLink
žButton.......2-40
Resetting Defaults...........................................2-40
Restraint System Check
Checking Your Restraint Systems...................1-48Restraint System Check (cont.)
Replacing Restraint System Parts
After a Crash..........................................1-49
Restraint Systems
Checking....................................................1-48
Replacing Parts...........................................1-49
Retained Accessory Power (RAP)......................2-20
Retractable Hardtop........................................2-44
Lowering....................................................2-44
Raising......................................................2-45
Roadside
Service........................................................ 7-5
Roadside Service Availability.............................. 7-6
Roadside Service for the Hearing or Speech
Impaired...................................................... 7-6
Rocking Your Vehicle To Get It Out...................4-32
Routing, Engine Drive Belt...............................6-13
Run-Flat Tires................................................5-56
Running Your Engine While You Are Parked.......2-32
S
Safety Belt
Pretensioners..............................................1-17
Reminder Light............................................3-41
Safety Belts
Care of......................................................5-78
Driver Position............................................1-10
How to Wear Safety Belts Properly.................. 1-9
10

T
Tachometer....................................................3-41
TCS Warning Light..........................................3-46
Telescopic Steering Column, Power Tilt Wheel...... 3-5
Testing the Alarm............................................2-18
Theft-Deterrent, Radio.....................................3-71
Theft-Deterrent System....................................2-17
Theft-Deterrent Systems...................................2-17
Tire
Pressure Light.............................................3-48
Tire Sidewall Labeling......................................5-50
Tire Size Codes..............................................5-52
Tire Terminology and De®nitions........................5-53
Tires.............................................................5-50
Buying New Tires........................................5-63
Chains.......................................................5-68
If a Tire Goes Flat.......................................5-73
In¯ation - Tire Pressure................................5-57
Inspection and Rotation................................5-60
Lifting Your Vehicle......................................5-69
Pressure Monitor System..............................5-58
Run-Flat.....................................................5-56
Uniform Tire Quality Grading.........................5-64
Wheel Alignment and Tire Balance.................5-65
Wheel Replacement.....................................5-66
When It Is Time for New Tires......................5-62To Use the Engine Coolant Heater....................2-22
Top Strap......................................................1-27
Torque Lock...................................................2-29
Towing
Recreational Vehicle.....................................4-32
Towing a Trailer..........................................4-37
Your Vehicle...............................................4-32
Traction
Control System (TCS).................................... 4-9
Control System Warning Light.......................3-46
Limited-Slip Rear Axle..................................4-10
Magnetic Ride Control..................................4-10
Stabilitrak
žSystem......................................4-11
Transmission
Fluid, Automatic...........................................5-19
Transmission Operation, Automatic....................2-23
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-11
Transportation Options...................................... 7-7
Trip Computer
Oil Life Indicator..........................................3-70
Trip Odometer................................................3-41
Trunk............................................................2-11
Trunk Lock Release........................................2-12
Turn and Lane-Change Signals.......................... 3-6
Turn Signal/Multifunction Lever........................... 3-5
Twilight Sentinel
ž............................................3-24
12