lights CADILLAC STS 2007 1.G Owner's Manual

Warning Lights, Gages, and
Indicators
This part describes the warning lights and gages
that may be on your vehicle. The pictures will
help you locate them.
Warning lights and gages can signal that something
is wrong before it becomes serious enough to
cause an expensive repair or replacement. Paying
attention to the warning lights and gages could also
save you or others from injury.
Warning lights come on when there may be or is a
problem with one of your vehicle’s functions. As
you will see in the details on the next few
pages, some warning lights come on briey when
you start the engine just to let you know they
are working. If you are familiar with this section,
you should not be alarmed when this happens.Gages can indicate when there may be or is a
problem with one of your vehicle’s functions. Often
gages and warning lights work together to let you
know when there is a problem with your vehicle.
When one of the warning lights comes on and
stays on while you are driving, or when one of the
gages shows there may be a problem, check
the section that tells you what to do about
it. Waiting to do repairs can be costly – and even
dangerous. So please get to know your warning
lights and gages. They are a big help.
Your vehicle also has a Driver Information
Center (DIC) that works along with the
warning lights and gages. SeeDriver Information
Center (DIC) on page 258for more information.
241

{CAUTION:
If the airbag readiness light stays on after
you start your vehicle, it means the airbag
system may not be working properly. The
airbags in your vehicle may not inate in
a crash, or they could even inate without
a crash. To help avoid injury to yourself
or others, have your vehicle serviced right
away if the airbag readiness light stays on
after you start your vehicle.
If there is a problem with the airbag system in
your vehicle, the SERVICE AIR BAG message will
appear on the DIC display. SeeDIC Warnings
and Messages on page 264for more information.
Passenger Airbag Status Indicator
Your vehicle has the passenger sensing system.
Your overhead console has a passenger airbag
status indicator.
The indicator next to the passenger airbag status
indicator lights is the passenger safety belt
reminder light. SeePassenger Safety Belt
Reminder Light on page 244for more information
on that indicator.
When the vehicle is running, the passenger airbag
status indicator will light ON and OFF, or the
symbol for on and off, for several seconds as a
system check. Then, after several more seconds,
the status indicator will light either ON or OFF, or
either the on or off symbol, to let you know the
status of the right front passenger’s frontal airbag.
United StatesCanada
245

If the word OFF or the off symbol is lit on the
airbag status indicator, it means that the
passenger sensing system has turned off the right
front passenger’s frontal airbag. SeePassenger
Sensing System on page 74for more on this,
including important safety information.
If, after several seconds, all status indicator lights
remain on, or if there are no lights at all, there
may be a problem with the lights or the passenger
sensing system. See your dealer for service.
{CAUTION:
If the off indicator and the airbag
readiness light ever come on together, it
means that something may be wrong with
the airbag system. If this ever happens,
have the vehicle serviced promptly,
because an adult-size person sitting in the
right front passenger seat may not have
the protection of the frontal airbag. See
Airbag Readiness Light on page 244.
Charging System Light
When you turn the
engine on, this light
will come on briey
to show that the
generator and battery
charging systems are
working properly.
If this light stays on, your vehicle needs service.
You should take your vehicle to the dealer at once.
To save your battery until you get there, turn off
all accessories. SeeDIC Controls and Displays on
page 258for more information.
247

Security Light
For information
regarding this light,
seeTheft-Deterrent
System on page 108.
Fog Lamp Light
The fog lamp light will
come on when the fog
lamps are in use.
The light will go out when the fog lamps are
turned off. SeeFog Lamps on page 217for
more information.
Lights On Reminder
This light comes on
whenever the parking
lamps are on.
SeeHeadlamps on Reminder on page 216for
more information.
Cruise Control Light
This light comes on
whenever you set your
cruise control.
The light will go out when the cruise control is
turned off. SeeCruise Control on page 193
andAdaptive Cruise Control on page 197for
more information.
256

AUTOMATIC LIGHTS OFF
This message displays when the automatic
headlamps are turned off. SeeHeadlamps on
page 211for more information.
AUTOMATIC LIGHTS ON
This message displays when the automatic
headlamps are turned on. SeeHeadlamps on
page 211for more information.
BATTERY NOT CHARGING SERVICE
CHARGING SYS (System)
This symbol appears
with this message.
This message displays when a problem with the
charging system has been detected. Have your
vehicle serviced by your dealer.
BATTERY SAVER ACTIVE
This message displays when the system detects
that the battery voltage is dropping beyond a
reasonable level. The battery saver system starts
reducing certain features of the vehicle that
you may be able to notice. At the point that the
features are disabled, this message is displayed.
It means that the vehicle is trying to save the
charge in the battery.
Turn off all unnecessary accessories to allow the
battery to recharge.
The normal battery voltage range is
11.5 to 15.5 volts. You can monitor battery voltage
on the DIC by pressing the information button
until you nd BATTERY VOLTS.
265

No one can see as well at night as in the daytime.
But as we get older these differences increase.
A 50-year-old driver may require at least twice as
much light to see the same thing at night as a
20-year-old.
What you do in the daytime can also affect your
night vision. For example, if you spend the
day in bright sunshine you are wise to wear
sunglasses. Your eyes will have less trouble
adjusting to night. But if you are driving, do not
wear sunglasses at night. They may cut down on
glare from headlamps, but they also make a
lot of things invisible.
You can be temporarily blinded by approaching
headlamps. It can take a second or two, or
even several seconds, for your eyes to re-adjust
to the dark. When you are faced with severe glare,
as from a driver who does not lower the high
beams, or a vehicle with misaimed headlamps,
slow down a little. Avoid staring directly into
the approaching headlamps.Keep the windshield and all the glass on your
vehicle clean — inside and out. Glare at night is
made much worse by dirt on the glass. Even
the inside of the glass can build up a lm caused
by dust. Dirty glass makes lights dazzle and
ash more than clean glass would, making the
pupils of your eyes contract repeatedly.
Remember that the headlamps light up far less of a
roadway when you are in a turn or curve. Keep your
eyes moving; that way, it is easier to pick out dimly
lighted objects. Just as the headlamps should be
checked regularly for proper aim, so should your
eyes be examined regularly. Some drivers suffer
from night blindness — the inability to see in dim
light — and are not even aware of it.
334

Engine Coolant
The cooling system in your vehicle is lled with
DEX-COOL®engine coolant. This coolant is
designed to remain in your vehicle for ve years or
150,000 miles (240 000 km), whichever occurs
rst, if you add only DEX-COOL
®extended
life coolant.
The following explains your cooling system and
how to add coolant when it is low. If you have
a problem with engine overheating, seeEngine
Overheating on page 393.
A 50/50 mixture of clean, drinkable water and
DEX-COOL
®coolant will:
Give freezing protection down to
−34°F (−37°C).
Give boiling protection up to 265°F (129°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights and gages work as
they should.
Notice:Using coolant other than
DEX-COOL
®may cause premature engine,
heater core, or radiator corrosion. In addition,
the engine coolant may require changing
sooner, at the rst maintenance service after
each 30,000 miles (50 000 km) or 24 months,
whichever occurs rst. Any repairs
would not be covered by your warranty.
Always use DEX-COOL
®(silicate-free)
coolant in your vehicle.
389

The underhood fuse block is located in the front of
the engine compartment on the passenger’s
side of the vehicle. SeeEngine Compartment
Overview on page 373for 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.
Fuses Usage
BLOWER Blower Motor
R REAR Passenger’s Side Rear Fuse Block
I/P OUTLET Front Accessory Power Outlet
CCP Climate Control, Headlamp Leveling
PRE 02/CAMOxygen Sensor, Variable Intake (V6),
Purge Solenoid (V6), Camshaft
Phasers (V6)
R REAR Passenger’s Side Rear Fuse Block
WPR SW Wiper/Washer Switch
FOG LAMP Fog Lamps
OUTLET Rear Accessory Power Outlet
EVEN COILSEven Ignition Coils, Even Fuel
Injectors
Fuses Usage
L REAR Driver’s Side Rear Fuse Block
WPR MOD Wiper Module
POST 02 Oxygen Sensor
COMP CLTCH Air Conditioner Compressor Clutch
STARTER Starter Solenoid
ABS Anti-lock Brake Pump
L REAR Driver’s Side Rear Fuse Block
RAIN SSRRain Sensor, Headlamp Washer,
Tire Pressure Monitor
CCP Climate Control
SMT BM-OPT IntelliBeam™ Relay (If Equipped)
EXT LIGHTSLow Beam Relay, High Beam Relay,
Park Lamp Relay
VOLT CHECK Instrument Panel Module
ECM/TCMEngine Control Module (ECM),
Transmission Control Module (TCM),
Easy Key Module, Instrument Panel
Cluster
SPARE Spare
SPARE Spare
LT PARKDriver’s Side Park Lamp, Driver’s
Side Taillamp
489

L
Labeling, Tire Sidewall................................. 423
Lamps
Battery Load Management....................... 221
Electric Power Management..................... 221
Exterior Lighting Battery Saver................. 219
Fog .......................................................... 217
Inadvertent Power Battery Saver.............. 222
Reading................................................... 221
Twilight Sentinel
®..................................... 218
LATCH System
Child Restraints......................................... 50
Lifting Your Vehicle, Tires............................ 448
Light
Airbag Readiness..................................... 244
Anti-Lock Brake System Warning............. 249
Brake System Warning............................. 248
Charging System..................................... 247
Cruise Control.......................................... 256
Engine Coolant Temperature Warning....... 251
Fog Lamp................................................ 256
Highbeam On.......................................... 257
Lights On Reminder................................. 256
Low Tire Pressure Warning Light............. 249Light (cont.)
Malfunction Indicator................................ 252
Oil Pressure............................................. 255
Passenger Airbag Status Indicator............ 245
Passenger Safety Belt Reminder.............. 244
Safety Belt Reminder............................... 243
Security................................................... 256
TCS Warning Light.................................. 250
Traction Control System (TCS) Warning ... 250
Lighting
Entry........................................................ 220
Parade Dimming...................................... 220
Limited-Slip Rear Axle................................. 325
Loading Your Vehicle................................... 349
Lockout Protection....................................... 101
Locks
Door.......................................................... 98
Lockout Protection................................... 101
Power Door............................................... 99
Programmable Automatic Door Locks......... 99
Rear Door Security Locks........................ 100
Loss of Control........................................... 332
Lumbar
Power Controls............................................ 9
552

U
Ultrasonic Rear Parking Assist (URPA)........ 226
Understanding Radio Reception................... 312
Uniform Tire Quality Grading....................... 444
Universal Home Remote System........135, 136
Operation........................................137, 142
V
Valet Lockout Switch................................... 110
Vehicle
Control..................................................... 320
Damage Warnings....................................... 5
Loading.................................................... 349
Symbols...................................................... 5
Vehicle Data Collection and Event
Data Recorders........................................ 536
Vehicle Identication
Number (VIN).......................................... 485
Service Parts Identication Label.............. 485Vehicle Personalization................................ 148
Memory Seat, Mirrors and
Steering Wheel..................................... 169
Ventilated Seats............................................ 11
Ventilation Adjustment.................................. 237
Visors.......................................................... 107
W
Warning Lights, Gages and Indicators......... 241
Warnings
DIC Warnings and Messages................... 264
Hazard Warning Flashers......................... 180
Other Warning Devices............................ 180
Safety and Symbols..................................... 4
Vehicle Damage.......................................... 5
Wheels
Alignment and Tire Balance..................... 445
Different Size........................................... 443
Replacement............................................ 445
Where to Put the Restraint............................ 48
559