warning light CADILLAC CTS 2005 1.G Service Manual

If a tire goes at, and your vehicle has a spare tire,
seeChanging a Flat Tire (CTS) on page 5-76.
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 (CTS-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. Don’t 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.
5-75

A
Accessory Power Outlets.................................3-25
Adding Equipment to Your Airbag-Equipped
Vehicle.......................................................1-64
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment............................5-95
Air Cleaner/Filter, Engine.................................5-21
Air Conditioning..............................................3-27
Airbag
Passenger Status Indicator...........................3-39
Readiness Light..........................................3-38
Airbag Sensing and Diagnostic Module (SDM)...... 7-9
Airbag System................................................1-50
Adding Equipment to Your Airbag-Equipped
Vehicle...................................................1-64
How Does an Airbag Restrain?......................1-58
Passenger Sensing System...........................1-60
Servicing Your Airbag-Equipped Vehicle..........1-64
What Makes an Airbag Inate?......................1-58
What Will You See After an Airbag Inates?....1-58
When Should an Airbag Inate?....................1-56
Where Are the Airbags?...............................1-52
Antenna, Diversity Antenna System..................3-108
Antenna, XM™ Satellite Radio Antenna
System.....................................................3-108
Anti-Lock Brake System (ABS)........................... 4-6
Anti-Lock Brake, System Warning Light..............3-42Appearance Care............................................5-86
Aluminum or Chrome-Plated Wheels..............5-91
Care of Safety Belts....................................5-89
Chemical Paint Spotting...............................5-93
Cleaning Exterior Lamps/Lenses....................5-90
Fabric/Carpet..............................................5-86
Finish Care.................................................5-90
Finish Damage............................................5-92
Glass Surfaces............................................5-89
Instrument Panel.........................................5-88
Interior Plastic Components...........................5-88
Leather......................................................5-88
Sheet Metal Damage...................................5-92
Speaker Covers..........................................5-89
Tires..........................................................5-92
Underbody Maintenance...............................5-93
Vehicle Care/Appearance Materials................5-93
Vinyl..........................................................5-88
Washing Your Vehicle...................................5-90
Weatherstrips..............................................5-89
Windshield and Wiper Blades........................5-91
Wood Panels..............................................5-89
Ashtrays........................................................3-26
Audio System(s).............................................3-88
Audio Steering Wheel Controls....................3-105
Care of Your CD Player..............................3-107
Care of Your CDs......................................3-107
Diversity Antenna System............................3-108
1

Audio System(s) (cont.)
Navigation/Radio System, see Navigation
Manual.................................................3-105
Radio with CD............................................3-89
Setting the Time..........................................3-88
Theft-Deterrent Feature...............................3-105
Understanding Radio Reception...................3-106
XM™ Satellite Radio Antenna System...........3-108
Automatic Transmission
Fluid..........................................................5-22
Operation...................................................2-26
B
Battery..........................................................5-41
Exterior Lighting Battery Saver......................3-23
Before Leaving on a Long Trip.........................4-24
Brake
Anti-Lock Brake System (ABS)........................ 4-6
Emergencies................................................ 4-8
Panic Assist................................................4-12
Parking......................................................2-33
System Warning Light..................................3-41
Brakes..........................................................5-38
Braking........................................................... 4-5
Braking in Emergencies..................................... 4-8
Break-In, New Vehicle.....................................2-21Bulb Replacement...........................................5-49
Back-Up and License Plate Lamps.................5-51
Front Turn Signal and Fog Lamps..................5-50
Halogen Bulbs............................................5-49
High Intensity Discharge (HID) Lighting...........5-49
Replacement Bulbs......................................5-52
Taillamps, Turn Signal, Stoplamps and
Sidemarker Lamps...................................5-50
Buying New Tires...........................................5-69
C
California Fuel.................................................. 5-6
Canadian Owners................................................ ii
Capacities and Specications..........................5-107
Carbon Monoxide...................2-11, 2-38, 4-28, 4-40
Care of
Safety Belts................................................5-89
Your CD Player.........................................3-107
Your CDs .................................................3-107
Center Console Storage Area...........................2-50
Chains, Tire...................................................5-74
Charging System Light....................................3-41
Check
Engine Light...............................................3-45
Engine Oil Pressure Message.......................3-56
Checking Things Under the Hood......................5-10
2

Chemical Paint Spotting...................................5-93
Child Restraints
Child Restraint Systems...............................1-35
Infants and Young Children...........................1-32
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-41
Older Children.............................................1-29
Securing a Child Restraint Designed for
the LATCH System...................................1-43
Securing a Child Restraint in a Rear
Seat Position...........................................1-43
Securing a Child Restraint in the Right
Front Seat Position...................................1-46
Top Strap...................................................1-39
Top Strap Anchor Location............................1-40
Where to Put the Restraint...........................1-38
Cigarette Lighter.............................................3-26
Cleaning
Aluminum or Chrome-Plated Wheels..............5-91
Exterior Lamps/Lenses.................................5-90
Fabric/Carpet..............................................5-86
Finish Care.................................................5-90
Glass Surfaces............................................5-89
Instrument Panel.........................................5-88
Interior Plastic Components...........................5-88
Leather......................................................5-88
Speaker Covers..........................................5-89Cleaning (cont.)
Tires..........................................................5-92
Underbody Maintenance...............................5-93
Vinyl..........................................................5-88
Washing Your Vehicle...................................5-90
Weatherstrips..............................................5-89
Windshield and Wiper Blades........................5-91
Wood Panels..............................................5-89
Climate Control System
Air Filter, Passenger Compartment.................3-32
Dual..........................................................3-27
Outlet Adjustment........................................3-31
Steering Wheel Controls...............................3-33
Clutch, Hydraulic.............................................5-25
Comfort Guides, Rear Safety Belt.....................1-25
Compact Spare Tire........................................5-85
Competitive Driving Mode................................4-10
Control of a Vehicle.......................................... 4-5
Convenience Net............................................2-51
Coolant
Engine Temperature Gage............................3-44
Engine Temperature Warning Light.................3-43
Heater, Engine............................................2-25
Hot Temperature Warning Message................3-55
Surge Tank Pressure Cap.............................5-28
Cooling System..............................................5-31
Cruise Control Lever...............................3-12, 3-16
3

Cruise Control Light........................................3-50
Cupholder(s)..................................................2-50
Customer Assistance Information
Courtesy Transportation.................................. 7-7
Customer Assistance for Text
Telephone (TTY) Users............................... 7-4
Customer Assistance Offices........................... 7-4
Customer Satisfaction Procedure..................... 7-2
GM Mobility Reimbursement Program............... 7-5
Reporting Safety Defects to General Motors....7-11
Reporting Safety Defects to the
Canadian Government..............................7-10
Reporting Safety Defects to the
United States Government.........................7-10
Roadside Service.......................................... 7-5
Service Publications Ordering Information........7-11
D
Daytime Running Lamps..................................3-21
Defensive Driving............................................. 4-2
Delayed Locking............................................... 2-9
Diversity Antenna System...............................3-108
Doing Your Own Service Work........................... 5-4
Door
Central Door Unlocking System....................... 2-9
Delayed Locking........................................... 2-9Door (cont.)
Locks.......................................................... 2-8
Power Door Locks......................................... 2-9
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-10
Driver
Position, Safety Belt.....................................1-14
Driver Information Center (DIC).........................3-57
DIC Main Menu...........................................3-62
DIC Vehicle Personalization..........................3-74
DIC Warnings and Messages........................3-65
Status of Vehicle Systems............................3-58
System Controls..........................................3-58
Driving
At Night.....................................................4-18
City...........................................................4-22
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Freeway.....................................................4-23
Hill and Mountain Roads..............................4-26
In Rain and on Wet Roads...........................4-19
Rocking Your Vehicle to Get it Out.................4-33
Winter........................................................4-28
Winter Mode Light.......................................3-48
Dual Climate Control System............................3-27
4

E
Electrical System
Add-On Equipment......................................5-95
Fuses and Circuit Breakers...........................5-96
Power Windows and Other Power Options......5-96
Rear Underseat Fuse Block.........................5-101
Underhood Fuse Block.................................5-96
Windshield Wiper Fuses...............................5-95
Engine
Air Cleaner/Filter.........................................5-21
Battery.......................................................5-41
Check and Service Engine Soon Light............3-45
Check Oil Pressure Message........................3-56
Coolant......................................................5-25
Coolant Heater............................................2-25
Coolant Temperature Gage...........................3-44
Coolant Temperature Warning Light................3-43
Engine Compartment Overview......................5-12
Exhaust.....................................................2-38
Oil .............................................................5-16
Oil Life System...........................................5-19
Oil Temperature Warning Message.................3-56
Overheated Protection Operating Mode...........5-30
Overheating................................................5-28
Speed Limiter.............................................3-38
Starting......................................................2-24
Entry Lighting.................................................3-24
Event Data Recorders (EDR)............................. 7-9Extender, Safety Belt.......................................1-28
Exterior Lighting Battery Saver..........................3-23
F
Filter
Engine Air Cleaner......................................5-21
Finish Damage...............................................5-92
Flash-to-Pass.................................................3-10
Flat Tire........................................................5-74
Flat Tire, Changing.........................................5-76
Flat Tire, Storing.............................................5-84
Fluid
Automatic Transmission................................5-22
Manual Transmission....................................5-24
Power Steering...........................................5-36
Windshield Washer......................................5-37
Fog Lamp Light..............................................3-49
Fog Lamps....................................................3-23
Folding Rear Seat............................................ 1-6
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Filling a Portable Fuel Container....................5-10
Filling Your Tank........................................... 5-8
Fuels in Foreign Countries.............................. 5-7
Gage.........................................................3-50
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-5
5

Fuses
Fuses and Circuit Breakers...........................5-96
Rear Underseat Fuse Block.........................5-101
Underhood Fuse Block.................................5-96
Windshield Wiper.........................................5-95
G
Gage
Engine Coolant Temperature.........................3-44
Fuel..........................................................3-50
Speedometer..............................................3-37
Tachometer.................................................3-37
Garage Door Opener.......................................2-46
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-5
Glove Box.....................................................2-50
GM Mobility Reimbursement Program.................. 7-5
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-6
Headlamps....................................................3-19
Bulb Replacement.......................................5-49
Daytime Running Lamps...............................3-21
Flash-to-Pass..............................................3-10
Front Turn Signal and Fog Lamps..................5-50Headlamps (cont.)
Halogen Bulbs............................................5-49
High Intensity Discharge (HID) Lighting...........5-49
High/Low Beam Changer................................ 3-9
On Reminder..............................................3-21
Washer......................................................3-12
Wiper Activated...........................................3-20
Heated Seats................................................... 1-3
Heater...........................................................3-27
Highbeam On Light.........................................3-50
Highway Hypnosis...........................................4-25
Hill and Mountain Roads..................................4-26
HomeLink
®Wireless Control System.................2-46
HomeLink®Wireless Control System Operation . . . 2-46
Hood
Checking Things Under................................5-10
Release.....................................................5-11
Horn............................................................... 3-6
Hot Coolant Temperature Warning Message........3-55
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-14
Hydraulic Clutch.............................................5-25
I
Ignition Positions.............................................2-22
Immobilizer....................................................2-19
Immobilizer Operation......................................2-20
Infants and Young Children, Restraints...............1-32
6

Ination -- Tire Pressure..................................5-62
Instrument Panel
Brightness..................................................3-24
Cluster.......................................................3-35
Overview..................................................... 3-4
J
Jump Starting.................................................5-42
K
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
L
Labelling, Tire Sidewall....................................5-56
Lamps
Exterior Lighting Battery Saver......................3-23
Fog ...........................................................3-23
Reading.....................................................3-25
LATCH System
Child Restraints...........................................1-41
Securing a Child Restraint Designed for the
LATCH System........................................1-43Light
Airbag Readiness........................................3-38
Anti-Lock Brake System Warning...................3-42
Brake System Warning.................................3-41
Charging System.........................................3-41
Cruise Control.............................................3-50
Engine Coolant Temperature Warning.............3-43
Fog Lamp..................................................3-49
Highbeam On.............................................3-50
Lights On Reminder.....................................3-49
Malfunction Indicator....................................3-45
Oil Pressure...............................................3-48
Passenger Airbag Status Indicator..................3-39
Safety Belt Reminder...................................3-38
Security.....................................................3-49
Sport Mode................................................3-49
TCS Warning Light......................................3-43
Tire Pressure..............................................3-44
Traction Control System (TCS) Warning..........3-43
Winter Driving Mode....................................3-48
Lighting
Entry.........................................................3-24
Parade Dimming..........................................3-24
Limited-Slip Rear Axle.....................................4-11
Loading Your Vehicle.......................................4-33
Lockout Protection..........................................2-11
7

Locks
Central Door Unlocking System....................... 2-9
Delayed Locking........................................... 2-9
Door........................................................... 2-8
Lockout Protection.......................................2-11
Power Door.................................................. 2-9
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-10
Loss of Control...............................................4-16
Lumbar
Power Controls............................................. 1-3
M
Maintenance Schedule
Additional Required Services........................... 6-6
At Each Fuel Fill........................................... 6-9
At Least Once a Month.................................. 6-9
At Least Once a Year..................................6-10
Introduction.................................................. 6-2
Maintenance Footnotes.................................. 6-7
Maintenance Record....................................6-15
Maintenance Requirements............................. 6-2
Normal Maintenance Replacement Parts.........6-14
Owner Checks and Services........................... 6-9
Recommended Fluids and Lubricants.............6-12
Scheduled Maintenance................................. 6-4
Using.......................................................... 6-2Maintenance Schedule (cont.)
Your Vehicle and the Environment................... 6-2
Malfunction Indicator Light................................3-45
Manual Passenger Seat.................................... 1-2
Manual Transmission
Fluid..........................................................5-24
Operation...................................................2-31
Map Pocket...................................................2-50
Memory Mirrors..............................................2-52
Memory Seat.................................................2-52
Message
Center.......................................................3-51
Check Engine Oil Pressure...........................3-56
DIC Warnings and Messages........................3-65
Hot Coolant Temperature Warning..................3-55
Oil Temperature Warning..............................3-56
Tire Pressure Warning..................................3-57
Transmission Fluid Hot.................................3-55
Mirrors
Automatic Dimming Rearview with OnStar
®.....2-39
Automatic Dimming Rearview with OnStar®
and Compass..........................................2-40
Memory.....................................................2-52
Outside Convex Mirror.................................2-43
Outside Curb View Assist Mirror....................2-43
Outside Heated Mirrors................................2-43
Outside Power Mirrors..................................2-42
MyGMLink.com................................................ 7-3
8

N
Navigation/Radio System, see Navigation
Manual.....................................................3-105
New Vehicle Break-In......................................2-21
Normal Maintenance Replacement Parts............6-14
OOdometer......................................................3-37
Odometers, Trip..............................................3-37
Off-Road Recovery..........................................4-15
Oil
Engine.......................................................5-16
Pressure Light.............................................3-48
Oil, Engine Oil Life System..............................5-19
Oil Temperature Warning Message....................3-56
Older Children, Restraints................................1-29
Online Owner Center........................................ 7-3
OnStar
®System, see OnStar®Manual...............2-44
Other Warning Devices...................................... 3-6
Outlet Adjustment............................................3-31
Outside
Convex Mirror.............................................2-43
Curb View Assist Mirror................................2-43
Heated Mirrors............................................2-43
Power Mirrors.............................................2-42
Overheated Engine Protection Operating Mode.....5-30
Owner Checks and Services.............................. 6-9
Owners, Canadian............................................... ii
P
Panic Brake Assist..........................................4-12
Parade Dimming.............................................3-24
Park (P)
Shifting Into................................................2-34
Shifting Out of............................................2-35
Parking
Brake........................................................2-33
Over Things That Burn.................................2-37
Parking Your Vehicle.......................................2-37
Passenger Airbag Status Indicator.....................3-39
Passenger Compartment Air Filter.....................3-32
Passenger Sensing System..............................1-60
Passing.........................................................4-15
Power
Accessory Outlets........................................3-25
Door Locks.................................................. 2-9
Electrical System.........................................5-96
Lumbar Controls........................................... 1-3
Retained Accessory (RAP)............................2-24
Seat............................................................ 1-2
Steering Fluid.............................................5-36
Windows....................................................2-15
Pretensioners, Safety Belt................................1-28
Programmable Automatic Door Locks.................2-10
9