2009 CADILLAC STS fuses

Testing the Alarm
1. From inside the vehicle, roll down the window, then
get out of the vehicle, keeping the door open.
2. From outside of the vehicle, with the door open,
lock the vehicle using the power door lock switch
or the keyless access transmitter and close the
door. Wait about 30 seconds until the security light
goes off.
3. Reach in and open the door using the inside door
handle. The horn will sound and the exterior lamps
will ash.
You can turn off the alarm by pressing the unlock button
on the keyless access transmitter or by starting the car.
If the alarm does not sound when it should, check to
see if the horn works. The horn fuse may be blown.
To replace the fuse, seeFuses and Circuit Breakers on
page 5-123. If the fuse does not need to be replaced,
you may need to have your vehicle serviced.
To reduce the possibility of theft, always arm the
Theft-Deterrent system when leaving your vehicle.
Do not leave the key or device that disarms or
deactivates the theft deterrent system in the vehicle.
Valet Lockout Switch
The valet lockout switch
is located inside the
glove box.
9(Off):Press to turn the lockout feature off and allow
the trunk to be opened with either the keyless access
transmitter or the trunk release button located on
the driver’s door.
R(On):Press to turn the lockout feature on. The trunk
cannot be unlocked or opened. When the valet lockout
feature is on, the remote start feature and the Universal
Home Remote transmitter will be disabled
Lock the glove box with the key to further secure the
vehicle.
SeeKeyless Access System Operation on page 2-5and
Trunk on page 2-15for additional information.
2-23

If the engine does not start and the security light comes
on, there may be a problem with the immobilizer
system. Press the START button again.
If the vehicle does not start and the keyless access
transmitter appears to be undamaged, try another
keyless access transmitter. Or, place the transmitter in
the transmitter pocket. See “NO FOBS DETECTED”
underDIC Warnings and Messages on page 3-79for
additional information. Check the fuse. SeeFuses and
Circuit Breakers on page 5-123. If the engine still does
not start with the other transmitter, the vehicle needs
service. If the engine does start, the rst transmitter may
be faulty. See your dealer/retailer or have a new keyless
access transmitter programmed to the vehicle.
The immobilizer system can learn new or replacement
keyless access transmitters. Up to four keyless access
transmitters can be programmed for the vehicle.
To program additional transmitters, see “Matching
transmitter(s) to Your Vehicle” underKeyless Access
System Operation on page 2-5.
Do not leave the key or device that disarms or
deactivates the theft deterrent system in the vehicle.Starting and Operating Your
Vehicle
New Vehicle Break-In
Notice:The vehicle does not need an elaborate
break-in. But it will perform better in the long run if
you follow these guidelines:
Do not drive at any one constant speed, fast or
slow, for the rst 500 miles (805 km). Do not
make full-throttle starts. Avoid downshifting
to brake or slow the vehicle.
Avoid making hard stops for the rst 200 miles
(322 km) or so. During this time the new brake
linings are not yet broken in. Hard stops with
new linings can mean premature wear and earlier
replacement. Follow this breaking-in guideline
every time you get new brake linings.
Do not tow a trailer during break-in. SeeTowing a
Trailer (Vehicles Without Heavy Duty Cooling) on
page 4-31orTowing a Trailer (Vehicles With
Heavy Duty Cooling) on page 4-32for the trailer
towing capabilities of your vehicle and more
information.
Following break-in, engine speed and load can be
gradually increased.
2-25

Turn and Lane-Change Signals
An arrow on the instrument
panel cluster ashes in the
direction of the turn or
lane change.
Move the lever all the way up or down to signal a turn.
Raise or lower the lever until the arrow starts to ash
to signal a lane change. Hold it briey until the lane
change is complete. The arrow will automatically
ash three times.The lever returns to its starting position when it is
released.
If after signaling a turn or lane change the arrow ashes
rapidly or does not come on, a signal bulb may be
burned out.
Have the bulbs replaced. If the bulb is not burned out,
check the fuse. SeeFuses and Circuit Breakers on
page 5-123.
Turn Signal On Chime
If the turn signal is left on for about 1 mile (1.6 km), a
warning chime will sound and the TURN SIGNAL ON
message will appear on the Driver Information Center
(DIC) display. See “Turn Signal On” underDIC Warnings
and Messages on page 3-79for more information.
3-8

The Ignition is On and the HUD Image
Cannot Be Seen
Check to see if:
The HUD unit is covered.
The brightness is adjusted properly.
The HUD display is adjusted to the proper height.
Ambient light in the direction the vehicle is facing
is low.
A fuse is blown. SeeFuses and Circuit Breakers on
page 5-123.
The windshield is part of the HUD system.
SeeWindshield Replacement on page 5-52.
The following messages may appear in the HUD:
SPEED ALERTWhen the Speed Advisor feature is turned on,
HUD displays either the posted or advisory speed as
determined by the information on the map disc in
the navigation system. To turn the Speed Advisor on or
off, seeDIC Operation and Displays on page 3-72.
The Speed Advisor can be set to show a speed alert
when the vehicle speed exceeds the speed alert limit
as set in the DIC menu. Depending on the level of
the HUD on the vehicle, your HUD may work like either
of the following:
The HUD speedometer will turn red when the
vehicle speed exceeds the speed alert limit.
When the vehicle speed is at or below the alert limit
and above the posted speed or advisory speed,
the speedometer turns yellow. If the Speed
Alert setting in the DIC is set to AT LIMIT, the
speedometer will not turn yellow. When the vehicle
speed is at or below the posted speed or advisory
speed, the speedometer remains green.
The HUD speedometer will turn yellow when the
vehicle speed exceeds the speed alert limit.
When the vehicle speed is at or below the alert
limit, the speedometer remains green.
Posted Speed
Advisory Speed
3-45

PEDAL APPLIED ACC OVERRIDE
When the PEDAL APPLIED ACC OVERRIDE message
displays, the accelerator pedal is being pressed and
the Adaptive Cruise Control is overridden and cannot
automatically apply the brakes. Once the accelerator
pedal is released, the Adaptive Cruise Control will return
to normal operation and be able to apply the brakes,
if needed.
An Adaptive Cruise Control active symbol, alert symbol
or vehicle ahead symbol may also appear. SeeAdaptive
Cruise Control on page 3-20for more information.
Care of the HUD
Clean the inside of the windshield as needed to remove
any dirt or lm that reduces the sharpness or clarity
of the HUD display.
To clean the HUD, spray household glass cleaner on a
soft, clean cloth. Wipe the HUD lens gently, then dry.
Notice:When cleaning, be careful not to scratch
the HUD or camera lenses. Do not spray glass
cleaner directly on the HUD lens because the cleaner
could leak inside the unit and cause damage.
Accessory Power Outlet(s)
Accessory power outlets can be used to plug in electrical
equipment, such as a cellular telephone.
The vehicle has one outlet in front of the center console,
one in the center console lid and there may be an
additional outlet in the rear of the center console.
The vehicle may have a small cap that must be
removed to access the accessory power outlet.
Be sure to cover the outlet with the protective cap
when it is not in use.
Notice:Leaving electrical equipment plugged in for
an extended period of time while the vehicle is off
will drain the battery. Power is always supplied
to the outlets. Always unplug electrical equipment
when not in use and do not plug in equipment
that exceeds the maximum 20 ampere rating.
Certain accessory power plugs may not be compatible
to the accessory power outlet and could result in
blown vehicle or adapter fuses. If you experience a
problem, see your dealer for additional information
on the accessory power outlets.
Notice:Adding any electrical equipment to the
vehicle can damage it or keep other components
from working as they should. The repairs would
not be covered by the vehicle warranty. Do not
3-46

Tire Inspection and Rotation...........................5-71
When It Is Time for New Tires.......................5-73
Buying New Tires.........................................5-74
Different Size Tires and Wheels......................5-76
Uniform Tire Quality Grading..........................5-77
Wheel Alignment and Tire Balance..................5-79
Wheel Replacement......................................5-79
Tire Chains..................................................5-81
Lifting the Vehicle (STS-V).............................5-82
If a Tire Goes Flat........................................5-84
Tire Sealant and Compressor Kit
(Without Selector Switch)............................5-87
Tire Sealant and Compressor Kit
(With Selector Switch)................................5-96
Tire Sealant and Compressor Kit Storage.......5-104
Changing a Flat Tire...................................5-104
Removing the Spare Tire and Tools..............5-106
Removing the Flat Tire and Installing
the Spare Tire.........................................5-107
Storing a Flat or Spare Tire and Tools...........5-112
Compact Spare Tire....................................5-114
Appearance Care..........................................5-115
Interior Cleaning.........................................5-115
Fabric/Carpet..............................................5-116
Leather......................................................5-117
Instrument Panel, Vinyl, and Other
Plastic Surfaces.......................................5-117Wood Panels..............................................5-117
Speaker Covers..........................................5-118
Care of Safety Belts....................................5-118
Weatherstrips.............................................5-118
Washing Your Vehicle..................................5-118
Cleaning Exterior Lamps/Lenses....................5-119
Finish Care................................................5-119
Windshield and Wiper Blades.......................5-120
Aluminum or Chrome-Plated Wheels
and Trim................................................5-120
Tires.........................................................5-121
Sheet Metal Damage...................................5-121
Finish Damage...........................................5-121
Underbody Maintenance...............................5-121
Chemical Paint Spotting...............................5-122
Vehicle Identication.....................................5-122
Vehicle Identication Number (VIN)................5-122
Service Parts Identication Label...................5-122
Electrical System..........................................5-123
Add-On Electrical Equipment.........................5-123
Headlamp Wiring........................................5-123
Windshield Wiper Fuses...............................5-123
Power Windows and Other Power Options......5-123
Fuses and Circuit Breakers..........................5-123
Underhood Fuse Block................................5-124
Rear Underseat Fuse Block..........................5-128
Capacities and Specications........................5-134
Section 5 Service and Appearance Care
5-2

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