2009 CADILLAC STS headlamp

Electrical System
Add-On Electrical Equipment
Notice:Do not add anything electrical to the
vehicle unless you check with your dealer/retailer
rst. Some electrical equipment can damage
the vehicle and the damage would not be covered
by the vehicle’s warranty. Some add-on electrical
equipment can keep other components from
working as they should.
Add-on equipment can drain the vehicle battery, even if
the vehicle is not operating.
The vehicle has an airbag system. Before attempting to
add anything electrical to the vehicle, seeServicing
Your Airbag-Equipped Vehicle on page 1-64.
Headlamp Wiring
The headlamp wiring is protected by fuses in the fuse
block. An electrical overload will cause the lamps to turn
off. If this happens, have the headlamp wiring checked
right away.
Windshield Wiper Fuses
The windshield wiper motor is protected by an internal
circuit breaker. If the wiper motor overheats due to
heavy snow, the wipers will stop until the motor cools
and will then restart.
Power Windows and Other Power
Options
Circuit breakers in the fuse block protect the power
windows and other power accessories. When the current
load is too heavy, the circuit breaker opens and closes,
protecting the circuit until the problem is xed or
goes away.
Fuses and Circuit Breakers
The wiring circuits in the vehicle are protected from
short circuits by a combination of fuses, circuit breakers
and fusible thermal links. This greatly reduces the
chance of res caused by electrical problems.
Look at the silver-colored band inside the fuse. If the
band is broken or melted, replace the fuse. Be sure you
replace a bad fuse with a new one of the identical
size and rating.
Fuses of the same amperage can be temporarily
borrowed from another fuse location, if a fuse goes out.
Replace the fuse as soon as you can.
5-123

The underhood fuse block is located in the front of
the engine compartment on the passenger side of
the vehicle. SeeEngine Compartment Overview on
page 5-12for more information on location and removal
procedure for the front compartment underhood sights
shields.
To access the fuses, push in the tabs located on each
side of the fuse block cover, then lift the cover off.
Notice:Spilling liquid on any electrical components
on the vehicle may damage it. Always keep the
covers on any electrical component.
Fuses JCase Usage
ABS MTRABS Module - ABS Module -
Stabilitrak
AFS Active Front Steering
BLWR Blower Motor
FAN 1 Cooling Fan-Low Speed
FAN 2 Cooling Fan-High Speed
LPDB 1 Driver Side Rear Fuse Block
LPDB 2 Driver Side Rear Fuse Block
RPDB 1 Passenger Side Rear Fuse Block
RPDB 2 Passenger Side Rear Fuse Block
Fuses JCase Usage
SPARE Spare
SPARE Spare
STRTR Starter
Fuses Mini Usage
A/C CLTCH Air Conditioning Compressor Clutch
ABS ABS Module-Stabilitrak
ABS IGN Antilock Brake Controller
AUX OUTLET Rear Accessory Power Outlet
BRK VAC
PUMPBrake Vacuum Pump
CCP Climate Control Panel
CCP/RLY
COILSClimate Control Panel, Headlamp
Level Control, Active Cruise Control,
Relay Coils, Starter, Front Blower
ECM 1 Engine Control Module (ECM)
ECM/TCM
BATTECM, Transmission Control
Module (TCM)
ECM/TCM IGNECM, TCM, Instrument Panel
Cluster
5-125

Fuses Mini Usage
EKM/I/P MDLEasy Key Module (EKM), Instrument
Panel Module (I/P MDL)
EVEN COILSEven Ignition Coils, Even Fuel
Injectors
FOG LAMP Front Fog Lamps
FRT PWR
OUTLETFront Accessory Power Outlet
FUEL COOL Fuel Cooling
HORN Horn
HTD
WASH/AQSHeated Headlamp Washer,
Air Quality Sensor
HUDHeads-Up Display, Steering Column
Switch
I/BEAM IntelliBeam Relay
I/P MDL/ALDLInstrument Panel Module, Assembly
Line Data Link Connector
LIC DIMLicense Plate, Instrument Panel
Dimming
LT HI BEAM Driver Side High Beam Headlamp
LT LO BEAM Driver Side Low Beam Headlamp
LT PRKDriver Side Park Lamp/Driver Side
TaillampFuses Mini Usage
ODD COILSOdd Ignition Coils, Odd Fuel
Injectors
POST O2
SNSRPost Oxygen Sensor
PRE O2 SNSR Pre Oxygen Sensor, CAM Sensors
RAIN
SNSR/TPMRain Sensor, Relay Coil:
Headlamp Wash
RT HI BEAMPassenger Side High Beam
Headlamp
RT LO BEAMPassenger Side Low Beam
Headlamp
RT PRKPassenger Side Park Lamp,
Passenger Side Taillamp
SPARE Spare
SPARE Spare
SPARE Spare
SPARE Spare
SPARE Spare
SPARE Spare
SPARE Spare
5-126

Fuses Mini Usage
V/CHKInstrument Panel Module-Voltage
Check
WPR Wipe/Wash Module Assembly
WPR SW/VICS Rain Sensor, Wiper Switch
Relays Usage
A/C CMPRSR
CLTCHAir Conditioning Compressor Clutch
ACCYAccessory, Rain Sensor, Headlamp
Washer Relay Coil, Windshield
Wiper/Washer Module
BRK VAC
PUMPBrake Vacuum Pump
FAN S/P Cooling Fan Series/Parallel
FOG LAMP Fog Lamps
FRT BLWR Front Blower Motor
FUEL COOL Fuel Cooling Pump
HI BEAM High Beam Headlamp
HI FAN SPD Cooling Fan High Speed
HORN Horn
Relays Usage
LO FAN SPD Cooling Fan Low Speed
LOW BEAM
W/O HID/HIDLow Beam Headlamp, High Intensity
Discharge (HID)
PRK LAMPParking Lamps, Instrument Panel
Dimming, Rear License Plate Lamps
PWR/TRN Engine Controls
RUN CRNKHeated Washer Nozzle, Air Quality,
Antilock Brake System, Climate
Control Panel, TCM, ECM,
Instrument Panel Cluster
SPARE Spare
SPARE Spare
SPARE Spare
STRTR Starter
WPR HI Windshield Wiper High Speed
Circuit
BreakersUsage
HDLP WASHHeadlamp Washer Motor
(Circuit Breaker)
5-127

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

Customer Assistance Information
Courtesy Transportation................................7-10
Customer Assistance for Text
Telephone (TTY) Users............................... 7-6
Customer Assistance Offices........................... 7-6
Customer Satisfaction Procedure..................... 7-2
GM Mobility Reimbursement Program............... 7-7
Reporting Safety Defects to
General Motors........................................7-15
Reporting Safety Defects to the
Canadian Government..............................7-15
Reporting Safety Defects to the
United States Government.........................7-14
Roadside Service.......................................... 7-7
Service Publications Ordering Information........7-15
D
Daytime Running Lamp...................................3-36
Defensive Driving............................................. 4-2
Disc, MP3....................................................3-111
Doing Your Own Service Work........................... 5-4
Door
Locks........................................................2-13
Power Door Locks.......................................2-13
Programmable Automatic Door Locks.............2-14
Rear Door Security Locks.............................2-14Driver Information Center (DIC).........................3-72
DIC Operation and Displays..........................3-72
DIC Warnings and Messages........................3-79
Other Messages..........................................3-96
Driving
At Night.....................................................4-17
Before a Long Trip......................................4-19
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Highway Hypnosis.......................................4-19
Hill and Mountain Roads..............................4-20
In Rain and on Wet Roads...........................4-18
Rocking Your Vehicle to Get it Out.................4-24
Winter........................................................4-21
Dual Climate Control System............................3-48
E
EDR .............................................................7-16
Electrical System
Add-On Equipment.....................................5-113
Fuses and Circuit Breakers.........................5-113
Headlamp Wiring.......................................5-113
Power Windows and Other Power
Options.................................................5-113
Rear Underseat Fuse Block.........................5-118
Underhood Fuse Block...............................5-114
4

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

W
Warning Lights, Gages, and Indicators...............3-55
Warnings
DIC Warnings and Messages........................3-79
Hazard Warning Flashers............................... 3-6
Safety and Symbols......................................... iv
Washer, Headlamps........................................3-16
Wheels
Alignment and Tire Balance..........................5-79
Different Size..............................................5-76
Replacement...............................................5-79
Where to Put the Restraint...............................1-37
Windows.......................................................2-18
Power ........................................................2-19
Windshield
Rainsense™ II Wipers..................................3-14
Replacement...............................................5-52
Washer......................................................3-15Windshield (cont.)
Washer Fluid..............................................5-38
Wiper Blade Replacement.............................5-52
Wiper Blades, Cleaning..............................5-110
Wiper Fuses.............................................5-113
Wipers.......................................................3-13
Winter Driving................................................4-21
Winter Tires...................................................5-55
Wiper Activated Headlamps..............................3-36
X
XM Radio Messages.....................................3-114
XM™ Satellite Radio Antenna System..............3-134
Y
Your Vehicle and the Environment....................... 6-2
14