2006 CADILLAC STS run flat

Service............................................................5-3
Accessories and Modications..........................5-3
California Proposition 65 Warning.....................5-3
Doing Your Own Service Work.........................5-4
Adding Equipment to the Outside of
Your Vehicle..............................................5-5
Fuel................................................................5-5
Gasoline Octane............................................5-5
Gasoline Specications....................................5-6
California Fuel...............................................5-6
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-7
Filling the Tank..............................................5-8
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...................................................5-18
Engine Oil Life System..................................5-22
Engine Air Cleaner/Filter................................5-24
Automatic Transmission Fluid.........................5-26
Engine Coolant.............................................5-26
Coolant Surge Tank Pressure Cap..................5-30
Engine Overheating.......................................5-30
Overheated Engine Protection
Operating Mode........................................5-31Cooling System............................................5-32
Power Steering Fluid.....................................5-39
Windshield Washer Fluid................................5-40
Brakes........................................................5-41
Battery........................................................5-44
Jump Starting...............................................5-45
All-Wheel Drive..............................................5-50
Rear Axle.......................................................5-51
Front Axle......................................................5-52
Bulb Replacement..........................................5-53
High Intensity Discharge (HID) Lighting............5-53
Halogen Bulbs..............................................5-53
Back-Up Lamps............................................5-54
Replacement Bulbs.......................................5-54
Windshield Replacement.................................5-55
Windshield Wiper Blade Replacement..............5-55
Tires..............................................................5-56
Tire Sidewall Labeling...................................5-58
Tire Terminology and Denitions.....................5-60
Run-Flat Tires (STS-V)..................................5-63
Ination - Tire Pressure.................................5-64
Tire Pressure Monitor System.........................5-66
Tire Inspection and Rotation...........................5-70
When It Is Time for New Tires.......................5-71
Section 5 Service and Appearance Care
5-1

Run-Flat Tires (STS-V)
If your vehicle has run-at tires, there is no spare tire
and no tire changing equipment. Your vehicle also has a
Tire Pressure Monitor System (TPMS) which will alert
you if there is a loss of tire pressure in any of the tires.
SeeTire Pressure Monitor System on page 5-66.
{CAUTION:
When the low tire warning light is displayed on
the instrument panel cluster, 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. Do not drive over
55 mph (90 km/h) when the low tire warning
light is displayed. Drive cautiously and check
your tire pressures as soon as you can.If a tire goes at, you will not need to stop on the side
of the road to change the tire. You can just keep on
driving. The vehicle’s run-at tires can operate effectively
with no air pressure for up to 50 miles (80 km) at
speeds up to 55 mph (90 km/h). The shorter the
distance you drive and the slower the speed, the greater
the chance that the tire will not have to be replaced.
When a tire is lled with air, it provides a cushion
between the road and the wheel. Because you will not
have this cushion when driving on a deated run-at
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 have driven
on the tire in a deated condition. When a tire has been
damaged, or if you have driven any distance on a
deated run-at tire, check with an authorized run-at
tire service center, as soon as possible, to determine
whether the tire can be repaired or should be replaced.
5-63

If a tire goes at, and your vehicle has a spare tire, see
Changing a Flat Tire (STS Only) on page 5-83. This
information shows you how to use your vehicle’s tire
changing equipment and how to change a at tire safely.
{CAUTION:
Lifting a vehicle and getting under it to do
maintenance or repairs is dangerous without
the appropriate safety equipment and training.
The jack provided with your vehicle is
designed only for changing a at tire. If it is
used for anything else, you or others could be
badly injured or killed if the vehicle slips off
the jack. Use the jack provided with your
vehicle only for changing a at tire.
Run-Flat Tires (STS-V)
If your vehicle has run-at tires, there is no spare tire
and no tire changing equipment. Run-at tires can
operate effectively with no air pressure for a limited
distance and speed. Your vehicle also has a Tire
Pressure Monitor (TPM) which will alert you if there
is a loss of tire pressure in any of the tires. These
tires perform so well without any air pressure that a
Tire Pressure Monitor (TPM) is used to alert you when
there is a low tire condition.
{CAUTION:
When the low tire warning light is displayed on
the instrument panel cluster, 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. Do not drive over
55 mph (90 km/h) when the low tire warning
light is displayed. Drive cautiously and check
your tire pressures as soon as you can.
5-82

SeeRun-Flat Tires (STS-V) on page 5-63andTire
Pressure Monitor System on page 5-66, for additional
information.
{CAUTION:
Special tools and procedures are required to
service a run-at tire. If these special tools
and procedures are not 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.
To order a service manual seeService Publications
Ordering Information on page 7-14.
Changing a Flat Tire (STS Only)
If you have an STS-V model, there is no spare tire and
no tire changing equipment. Your vehicle is equipped
with run-at tires. SeeRun-Flat Tires (STS-V) on
page 5-63for more information. If you have an STS
model, follow the directions for changing a at tire in
this section.
If a tire goes at, avoid further tire and wheel damage
by driving slowly to a level place. Turn on your vehicle’s
hazard warning ashers. SeeHazard Warning Flashers
on page 3-6for more information.
5-83

Storing a Flat or Spare Tire and
Tools (STS Only)
{CAUTION:
Storing a jack, a tire, or other equipment in the
passenger compartment of the vehicle could
cause injury. In a sudden stop or collision,
loose equipment could strike someone. Store
all these in the proper place.
Full-Size Tire and Tools
After you have put the compact spare tire on your
vehicle, you will need to do the following to store the at
tire in your trunk.
1. Open the trunk. SeeTrunk on page 2-14.
2. Store the jack and wheel wrench in the jack
container in the trunk.
When storing the jack, in the container, it must be
raised until the screw end is ush with the edge
of the jack.
3. Store the at tire as far forward in the trunk as
possible.
The compact spare is for temporary use only. Replace
the compact spare tire with a full-size tire as soon
as you can.
5-92

Q
Questions and Answers About Safety Belts.........1-12
R
Radios..........................................................3-94
Care of Your CD Player..............................3-122
Care of Your CDs ......................................3-121
Navigation/Radio System, see Navigation
Manual.................................................3-115
Radio Personalization.................................3-115
Radio with CD............................................3-96
Setting the Time..........................................3-95
Theft-Deterrent..........................................3-119
Understanding Reception............................3-120
Rainsense™ II Wipers.....................................3-14
Reading Lamps..............................................3-40
Rear Axle......................................................5-51
Limited-Slip.................................................4-11
Rear Climate Control System............................3-54
Rear Door Security Locks................................2-13
Rear Heated Seats........................................... 1-7
Rear Safety Belt Comfort Guides......................1-23
Rear Seat Passengers, Safety Belts..................1-21
Rearview Mirror, Automatic Dimming..................2-41
Rearview Mirror, Automatic Dimming with
OnStar
®.....................................................2-41Rearview Mirror, Automatic Dimming with
OnStar
®and Compass.................................2-42
Rearview Mirror with Compass and
Temperature................................................. 1-7
Reclining Seatbacks, Power............................... 1-4
Recommended Fluids and Lubricants.................6-12
Recreational Vehicle Towing.............................4-38
Removing the Flat Tire and Installing
the Spare Tire.............................................5-86
Removing the Spare Tire and Tools...................5-85
Replacement Bulbs.........................................5-54
Replacement, Windshield.................................5-55
Reporting Safety Defects
Canadian Government..................................7-13
General Motors...........................................7-14
United States Government............................7-13
Restraint System Check
Checking the Restraint Systems....................1-64
Replacing Restraint System Parts
After a Crash..........................................1-65
Retained Accessory Power (RAP)......................2-25
Right Front Passenger Position, Safety Belts......1-21
Roadside
Service........................................................ 7-5
Rocking Your Vehicle to Get it Out....................4-32
Routing, Engine Drive Belt...............................6-15
Run-Flat Tires................................................5-63
Running the Engine While Parked.....................2-40
10

Steering........................................................4-12
Steering Wheel Controls, Audio.......................3-119
Steering Wheel Controls, Memory.....................2-70
Steering Wheel, Heated..................................... 3-7
Steering Wheel, Power Tilt Wheel and
Telescopic Steering Column............................ 3-6
Storage Areas
Center Console Storage Area........................2-51
Convenience Net.........................................2-51
Cupholder(s)...............................................2-51
Glove Box..................................................2-51
Stuck in Sand, Mud, Ice, or Snow.....................4-31
Sun Visors.....................................................2-20
Sunroof.........................................................2-52
T
Tachometer....................................................3-59
TCS Warning Light..........................................3-66
Telescopic Steering Column, Power Tilt Wheel...... 3-6
Theft-Deterrent, Radio....................................3-119
Theft-Deterrent System....................................2-21
Theft-Deterrent Systems...................................2-20Tires.............................................................5-56
Aluminum or Chrome-Plated Wheels,
Cleaning.................................................5-99
Buying New Tires........................................5-72
Chains.......................................................5-78
Changing a Flat Tire....................................5-83
Cleaning...................................................5-100
Compact Spare Tire.....................................5-94
Different Size..............................................5-74
If a Tire Goes Flat.......................................5-81
Ination - Tire Pressure................................5-64
Inspection and Rotation................................5-70
Installing the Spare Tire................................5-86
Lifting Your Vehicle......................................5-79
Pressure Monitor System..............................5-66
Removing the Flat Tire.................................5-86
Removing the Spare Tire and Tools...............5-85
Run-Flat.....................................................5-63
Storing a Flat or Spare Tire and Tools............5-92
Tire Sidewall Labeling..................................5-58
Tire Terminology and Denitions....................5-60
Uniform Tire Quality Grading.........................5-75
Wheel Alignment and Tire Balance.................5-76
Wheel Replacement.....................................5-76
When It Is Time for New Tires......................5-71
12