2009 CADILLAC STS warning light

TPMS Malfunction Light and Message
The TPMS will not function properly if one or more of
the TPMS sensors are missing or inoperable. When the
system detects a malfunction, the low tire warning light
ashes for about one minute and then stays on for the
remainder of the ignition cycle. A DIC warning message
is also displayed. The low tire warning light and DIC
warning message come on at each ignition cycle until
the problem is corrected. Some of the conditions that
can cause the malfunction light and DIC message to
come on are:
One of the road tires has been replaced with the
spare tire, if the vehicle has one. The spare tire does
not have a TPMS sensor. The DIC message should
go off once you re-install the road tire containing the
TPMS sensor.
The TPMS sensor matching process was started but
not completed or not completed successfully after
rotating the vehicle’s tires. The DIC message and
TPMS malfunction light should go off once the TPMS
sensor matching process is performed successfully.
See “TPMS Sensor Matching Process” later in this
section.
One or more TPMS sensors are missing or
damaged. The DIC message and the TPMS
malfunction light should go off when the TPMS
sensors are installed and the sensor matching
process is performed successfully. See your
dealer/retailer for service.
Replacement tires or wheels do not match your
vehicle’s original equipment tires or wheels. Tires
and wheels other than those recommended for your
vehicle could prevent the TPMS from functioning
properly. SeeBuying New Tires on page 5-74.
Operating electronic devices or being near facilities
using radio wave frequencies similar to the TPMS
could cause the TPMS sensors to malfunction.
If the TPMS is not functioning it cannot detect or
signal a low tire condition. See your dealer/retailer for
service if the TPMS malfunction light and DIC message
comes on and stays on.
5-69

Run-Flat Tires (STS-V)
If this 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. 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.SeeRun-Flat Tires (STS-V) on page 5-62andTire
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 the 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 7-15.
5-86

A
Accessories and Modications............................ 5-3
Accessory Power Outlets.................................3-46
Adaptive Cruise Control...................................3-20
Adding Equipment to Your Airbag-Equipped
Vehicle.......................................................1-64
Additives, Fuel................................................. 5-7
Add-On Electrical Equipment...........................5-113
Air Cleaner/Filter, Engine.................................5-23
Air Conditioning..............................................3-48
Airbag
Passenger Status Indicator...........................3-59
Readiness Light..........................................3-58
Airbag System................................................1-51
Adding Equipment to Your
Airbag-Equipped Vehicle............................1-64
How Does an Airbag Restrain?......................1-57
Passenger Sensing System...........................1-59
Servicing Your Airbag-Equipped Vehicle..........1-64
What Makes an Airbag Inate?......................1-57
What Will You See After an Airbag
Inates?..................................................1-58
When Should an Airbag Inate?....................1-56
Where Are the Airbags?...............................1-53
All-Wheel Drive...............................................5-47
All-Wheel-Drive (AWD) System.........................4-12
Antenna, Backglass.......................................3-134
Antenna, XM™ Satellite Radio Antenna
System.....................................................3-134Antilock Brake System (ABS)............................. 4-4
Antilock Brake, System Warning Light................3-63
Appearance Care
Aluminum or Chrome-Plated Wheels.............5-110
Care of Safety Belts...................................5-108
Chemical Paint Spotting..............................5-112
Cleaning Exterior Lamps/Lenses..................5-109
Fabric/Carpet............................................5-106
Finish Care...............................................5-109
Finish Damage..........................................5-111
Instrument Panel, Vinyl, and Other
Plastic Surfaces
.....................................5-107
Interior Cleaning........................................5-105
Leather....................................................5-107
Sheet Metal Damage..................................5-111
Speaker Covers.........................................5-108
Tires........................................................5-111
Underbody Maintenance.............................5-111
Washing Your Vehicle.................................5-108
Weatherstrips............................................5-108
Windshield and Wiper Blades......................5-110
Wood Panels............................................5-107
Appointments, Scheduling Service.....................7-10
Ashtray.........................................................3-47
Audio System.................................................3-97
Audio Steering Wheel Controls....................3-131
Backglass Antenna.....................................3-134
Navigation/Radio System, see Navigation
Manual.................................................3-116
Radio Personalization.................................3-126
1

Audio System (cont.)
Radio Reception........................................3-133
Setting the Clock.........................................3-98
Theft-Deterrent Feature...............................3-130
XM™ Satellite Radio Antenna System...........3-134
Audio System(s).............................................3-98
Automatic Transmission
Fluid..........................................................5-25
Operation...................................................2-30
B
Backglass Antenna........................................3-134
Battery..........................................................5-42
Electric Power Management..........................3-42
Exterior Lighting Battery Saver......................3-40
Inadvertent Power Saver..............................3-42
Load Management.......................................3-41
Bluetooth
®....................................................3-116
Brake
Emergencies................................................ 4-5
Brake Fluid....................................................5-39
Brakes..........................................................5-39
System Warning Light..................................3-62
Braking........................................................... 4-3
Braking in Emergencies..................................... 4-5
Break-In, New Vehicle.....................................2-25Bulb Replacement...........................................5-51
Back-Up Lamps...........................................5-52
Halogen Bulbs............................................5-51
Headlamp Aiming........................................5-50
High Intensity Discharge (HID) Lighting...........5-51
Replacement Bulbs......................................5-52
Buying New Tires...........................................5-74
C
Calibration...............................................1-6, 2-38
California Fuel.................................................. 5-6
California Perchlorate Materials
Requirements............................................... 5-4
California Proposition 65 Warning....................... 5-4
Canadian Owners............................................... iii
Capacities and Specications..........................5-124
Carbon Monoxide...........................2-15, 2-36, 4-21
Care of
Safety Belts..............................................5-108
CD, MP3 .....................................................3-111
Center Console Storage Area...........................2-60
Chains, Tire...................................................5-81
Charging System Light....................................3-61
Check
Engine Lamp..............................................3-66
Checking Things Under the Hood......................5-10
2

Chemical Paint Spotting.................................5-112
Child Restraints
Child Restraint Systems...............................1-35
Infants and Young Children...........................1-31
Lower Anchors and Tethers for Children..........1-39
Older Children.............................................1-28
Securing a Child Restraint in a
Rear Seat Position...................................1-45
Securing a Child Restraint in the
Right Front Seat Position..........................1-47
Where to Put the Restraint...........................1-37
Cigarette Lighter.............................................3-47
Cleaning
Aluminum or Chrome-Plated Wheels.............5-110
Exterior Lamps/Lenses................................5-109
Fabric/Carpet............................................5-106
Finish Care...............................................5-109
Instrument Panel, Vinyl, and Other
Plastic Surfaces.....................................5-107
Interior.....................................................5-105
Leather....................................................5-107
Speaker Covers.........................................5-108
Tires........................................................5-111
Underbody Maintenance.............................5-111
Washing Your Vehicle.................................5-108
Weatherstrips............................................5-108
Windshield and Wiper Blades......................5-110
Wood Panels............................................5-107Climate Control System
Air Filter, Passenger Compartment.................3-54
Dual ..........................................................3-48
Outlet Adjustment........................................3-52
Rear ..........................................................3-53
Clock, Setting.................................................3-98
Collision Damage Repair..................................7-11
Compact Spare Tire......................................5-104
Compass.................................................1-6, 2-38
Competitive Driving.........................................4-17
Competitive Driving Mode
................................4-11
Compressor Kit
Storing.......................................................5-94
Compressor Kit, Tire Sealant............................5-87
Control of a Vehicle.......................................... 4-3
Convenience Net............................................2-60
Coolant
Engine.......................................................5-27
Engine Temperature Gage............................3-65
Engine Temperature Warning Light.................3-64
Surge Tank Pressure Cap.............................5-34
Cooling System..............................................5-26
Cruise Control................................................3-16
Cruise Control, Forward Collision
Alert (FAC) System....................................... 3-9
Cruise Control Light........................................3-70
Cupholders....................................................2-60
3

Electrical System (cont.)
Windshield Wiper Fuses.............................5-113
Engine
Air Cleaner/Filter.........................................5-23
Check and Service Engine Soon Lamp...........3-66
Coolant......................................................5-27
Coolant Heater............................................2-29
Coolant Temperature Gage...........................3-65
Coolant Temperature Warning Light................3-64
Drive Belt Routing.......................................6-16
Engine Compartment Overview......................5-12
Exhaust.....................................................2-36
Oil .............................................................5-18
Oil Life System...........................................5-21
Overheated Protection Operating Mode...........5-36
Overheating................................................5-34
Starting......................................................2-27
Enhanced StabiliTrak
®....................................... 4-6
Entry Lighting.................................................3-41
Event Data Recorders.....................................7-17
Extender, Safety Belt.......................................1-27
Exterior Lighting Battery Saver..........................3-40
F
Filter
Engine Air Cleaner......................................5-23
Finish Damage.............................................5-111
Flashers, Hazard Warning.................................. 3-6Flash-to-Pass.................................................3-13
Flat Tire........................................................5-84
Flat Tire, Changing.........................................5-94
Flat Tire, Storing...........................................5-102
Fluid
Automatic Transmission................................5-25
Power Steering...........................................5-37
Windshield Washer......................................5-38
Fog Lamp
Fog ...........................................................3-38
Fog Lamp Light..............................................3-70
Forward Collision Alert (FAC) System.................. 3-9
Front Axle......................................................5-49
Fuel............................................................... 5-5
Additives...................................................... 5-7
California Fuel.............................................. 5-6
Filling a Portable Fuel Container....................5-10
Filling the Tank............................................. 5-8
Fuels in Foreign Countries.............................. 5-7
Gage .........................................................3-71
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-6
Fuses
Fuses and Circuit Breakers.........................5-113
Rear Underseat Fuse Block.........................5-118
Underhood Fuse Block...............................5-114
Windshield Wiper.......................................5-113
5

G
Gage
Engine Coolant Temperature.........................3-65
Fuel..........................................................3-71
Speedometer..............................................3-57
Tachometer.................................................3-57
Garage Door Opener.......................................2-53
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-6
Glove Box.....................................................2-60
GM Mobility Reimbursement Program.................. 7-7
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-5
Headlamp
Aiming .......................................................5-50
Headlamp Wiring...........................................5-113
Headlamps....................................................3-32
Bulb Replacement.......................................5-51
Daytime Running Lamp................................3-36
Flash-to-Pass..............................................3-13
Halogen Bulbs............................................5-51
High Intensity Discharge (HID) Lighting...........5-51
High/Low Beam Changer................................ 3-9Headlamps (cont.)
On Reminder..............................................3-36
Washer......................................................3-16
Wiper Activated...........................................3-36
Head-Up Display (HUD)...................................3-43
Heated Seats................................................... 1-3
Heated Steering Wheel..................................... 3-7
Heater...........................................................3-48
Engine Coolant...........................................2-29
Highbeam On Light.........................................3-70
High-Speed Operation, Tires.............................5-65
Highway Hypnosis...........................................4-19
Hill and Mountain Roads..................................4-20
Hood
Checking Things Under................................5-10
Release.....................................................5-11
Horn ............................................................... 3-6
How to Wear Safety Belts Properly...................1-12
I
Ignition Positions.............................................2-26
Immobilizer....................................................2-24
Immobilizer Operation......................................2-24
Inadvertent Power Battery Saver.......................3-42
Infants and Young Children, Restraints...............1-31
Ination - Tire Pressure...................................5-64
Inator Kit, Tire...............................................5-87
6

Instrument Panel
Brightness..................................................3-40
Cluster.......................................................3-56
Overview..................................................... 3-4
J
Jump Starting.................................................5-42
K
Keyless Access System..................................... 2-4
Keyless Access System, Operation...................... 2-5
Keys............................................................... 2-3
L
Labeling, Tire Sidewall.....................................5-56
Lamp
Malfunction Indicator....................................3-66
Lamps
Exterior Lighting Battery Saver......................3-40
Inadvertent Power Battery Saver....................3-42
Reading.....................................................3-41
Twilight Sentinel
®........................................3-38
Lane Departure Warning..................................2-48
Lane Departure Warning Light..........................3-64
Lap-Shoulder Belt...........................................1-21LATCH System for Child Restraints...................1-39
Lifting the Vehicle, Tires...................................5-82
Light
Airbag Readiness........................................3-58
Antilock Brake System (ABS) Warning............3-63
Brake System Warning.................................3-62
Charging System.........................................3-61
Cruise Control.............................................3-70
Engine Coolant Temperature Warning.............3-64
Fog Lamp ..................................................3-70
Highbeam On.............................................3-70
Lane Departure Warning...............................3-64
Lights On Reminder.....................................3-70
Oil Pressure...............................................3-69
Passenger Airbag Status Indicator..................3-59
Safety Belt Reminders..................................3-57
Security.....................................................3-69
TCS Warning Light......................................3-63
Tire Pressure..............................................3-65
Traction Control System (TCS) Warning..........3-63
Lighting
Entry.........................................................3-41
Parade Dimming..........................................3-41
Lights............................................................3-32
Flash-to-Pass..............................................3-13
High/Low Beam Changer................................ 3-9
On Reminder..............................................3-36
Limited-Slip Rear Axle.....................................4-12
Loading Your Vehicle.......................................4-24
Lockout Protection..........................................2-15
7