1999 CADILLAC ELDORADO brake light

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2-76
SERVICE A/C SYSTEM - 14: This message appears
when the electronic sensors that control the air
conditioning and heating systems are no longer working.
Have the climate control system serviced if you notice a
drop in heating and air conditioning efficiency.
SERVICE AIR BAG
- 83: There is a problem with the
Supplemental Inflatable Restraint (air bag) system when
this message appears. Let only a qualified technician
work on your vehicle. See your dealership for service
at once.
SERVICE BRAKE FLUID SWITCH
- 37: A problem
in the brake fluid detection circuit causes this message
to display if the ignition is in RUN. Have the brake
system serviced by a technician as soon as possible. If
the brake warning light is on, refer to the directions
listed in that part.
SERVICE CHARGING SYSTEM
- 102: This
message will display when a problem with the charging
system has been detected. Have your vehicle serviced at
your dealership.
SERVICE ELECTRIC SYS
- 106: This message will
display if an electrical problem has occurred within the
Powertrain Control Module (PCM). Have your vehicle
serviced by your dealership.SERVICE FUEL SYSTEM
- 101: The PCM has
detected a problem within the fuel system when this
message appears. See your dealership for service.
SERVICE IDLE CONTROL
- 107: A problem
with the idle control has occurred when this
message displays. Drive your vehicle to the
dealership for service.
SERVICE RIDE SYS
- 84: This message is displayed
to indicate that the suspension system is not operating
properly. To correct this problem, have your vehicle
serviced at your dealership.
SERVICE STEERING SYS
- 127: This message is
displayed when a problem has been detected in the
Magnasteer

variable effort steering system. Service is
required. A single chime will also sound when this
message is displayed.
SERVICE TRANSMISSION
- 100: If a problem is
detected with the transaxle, this message will appear.
Have your vehicle checked by your dealership.
SERVICE VEHICLE SOON
- 3: If a problem is
detected with the transaxle, this message will appear.
Have your vehicle checked by your dealership.

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4-7
Avoid needless heavy braking. Some people drive in
spurts
-- heavy acceleration followed by heavy
braking
-- rather than keeping pace with traffic.
This is a mistake. Your brakes may not have time to cool
between hard stops. Your brakes will wear out much
faster if you do a lot of heavy braking. If you keep pace
with the traffic and allow realistic following distances,
you will eliminate a lot of unnecessary braking. That
means better braking and longer brake life.
If your engine ever stops while you're driving, brake
normally but don't pump your brakes. If you do, the
pedal may get harder to push down. If your engine
stops, you will still have some power brake assist. But
you will use it when you brake. Once the power assist is
used up, it may take longer to stop and the brake pedal
will be harder to push.
Anti-Lock Brakes (ABS)
Your vehicle has anti-lock brakes (ABS). ABS is an
advanced electronic braking system that will help
prevent a braking skid.
When you start your engine and begin to drive away,
your anti
-lock brake system will check itself. You may
hear a momentary motor or clicking noise while this test
is going on, and you may even notice that your brake
pedal moves a little. This is normal.
If there's a problem with the
anti
-lock brake system, this
warning light will stay on.
See ªAnti
-Lock Brake
System Warning Lightº in
the Index.

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4-9
Remember: Anti-lock doesn't change the time you need
to get your foot up to the brake pedal or always decrease
stopping distance. If you get too close to the vehicle in
front of you, you won't have time to apply your brakes
if that vehicle suddenly slows or stops. Always leave
enough room up ahead to stop, even though you have
anti
-lock brakes.
Using Anti
-Lock
Don't pump the brakes. Just hold the brake pedal down
firmly and let anti
-lock work for you. You may hear the
anti
-lock pump or motor operate, and feel the brake
pedal pulsate, but this is normal.
Traction Control System
Your vehicle has a traction control system that limits wheel
spin. This is especially useful in slippery road conditions.
The system operates only if it senses that one or both of
the front wheels are spinning or beginning to lose traction.
When this happens, the system works the front brakes and
reduces engine power to limit wheel spin.
The TRACTION ENGAGED message will display on
the Driver Information Center when the traction control
system is limiting wheel spin. See ªDriver Information
Center Messagesº in the Index. You may feel or hear the
system working, but this is normal.If your vehicle is in cruise control when the traction
control system begins to limit wheel spin, the cruise
control will automatically disengage. When road
conditions allow you to safely use it again, you may
reengage the cruise control. (See ªCruise Controlº in
the Index.)
This warning light will
come on to let you know if
there's a problem with your
traction control system.
See ªTraction Control System Warning Lightº in the
Index. When this warning light is on, the system will not
limit wheel spin. Adjust your driving accordingly.
The traction control system automatically comes on
whenever you start your vehicle. To limit wheel spin,
especially in slippery road conditions, you should
always leave the system on. But you can turn the
traction control system off if you ever need to. (You
should turn the system off if your vehicle ever gets stuck
in sand, mud, ice or snow. See ªRocking Your Vehicleº
in the Index.)

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4-18
Driving too fast through large water puddles or even
going through some car washes can cause problems, too.
The water may affect your brakes. Try to avoid puddles.
But if you can't, try to slow down before you hit them.
CAUTION:
Wet brakes can cause accidents. They won't work
as well in a quick stop and may cause pulling to
one side. You could lose control of the vehicle.
After driving through a large puddle of water or
a car wash, apply your brake pedal lightly until
your brakes work normally.
Hydroplaning
Hydroplaning is dangerous. So much water can build up
under your tires that they can actually ride on the water.
This can happen if the road is wet enough and you're
going fast enough. When your vehicle is hydroplaning,
it has little or no contact with the road.
Hydroplaning doesn't happen often. But it can if your
tires do not have much tread or if the pressure in one or
more is low. It can happen if a lot of water is standing on
the road. If you can see reflections from trees, telephone
poles or other vehicles, and raindrops ªdimpleº the
water's surface, there could be hydroplaning.

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6-29
Brakes
Brake Fluid
Your brake master cylinder reservoir is on the driver's side of
the engine compartment. It is filled with DOT
-3 brake fluid.
There are only two reasons why the brake fluid level in the
reservoir might go down. The first is that the brake fluid
goes down to an acceptable level during normal brake
lining wear. When new linings are put in, the fluid level
goes back up. The other reason is that fluid is leaking out
of the brake system. If it is, you should have your brake
system fixed, since a leak means that sooner or later your
brakes won't work well, or won't work at all.So, it isn't a good idea to ªtop offº your brake fluid.
Adding brake fluid won't correct a leak. If you add fluid
when your linings are worn, then you'll have too much
fluid when you get new brake linings. You should add
(or remove) brake fluid, as necessary, only when work is
done on the brake hydraulic system.
CAUTION:
If you have too much brake fluid, it can spill on
the engine. The fluid will burn if the engine is
hot enough. You or others could be burned,
and your vehicle could be damaged. Add brake
fluid only when work is done on the brake
hydraulic system.
When your brake fluid falls to a low level, your brake
warning light will come on. See ªBrake System Warning
Lightº in the Index.

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6-31 Brake Wear
Your vehicle has four-wheel disc brakes.
Disc brake pads have built
-in wear indicators that make a
high
-pitched warning sound when the brake pads are worn
and new pads are needed. The sound may come and go or
be heard all the time your vehicle is moving (except when
you are pushing on the brake pedal firmly).
CAUTION:
The brake wear warning sound means that soon
your brakes won't work well. That could lead to
an accident. When you hear the brake wear
warning sound, have your vehicle serviced.
NOTICE:
Continuing to drive with worn-out brake pads
could result in costly brake repair.
Some driving conditions or climates may cause a brake
squeal when the brakes are first applied or lightly
applied. This does not mean something is wrong with
your brakes.
Properly torqued wheel nuts are necessary to help
prevent brake pulsation. When tires are rotated, inspect
brake pads for wear and evenly torque wheel nuts in the
proper sequence to GM specifications.
Brake linings should always be replaced as complete
axle sets.
See ªBrake System Inspectionº in the Maintenance
Schedule booklet under Part C ªPeriodic Maintenance
Inspections.º
Brake Pedal Travel
See your dealer if the brake pedal does not return to
normal height, or if there is a rapid increase in pedal
travel. This could be a sign of brake trouble.
Brake Adjustment
Every time you apply the brakes, with or without the
vehicle moving, your brakes adjust for wear.

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8-1
Section 8 Index
A
BS 4-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adapter Kits, CDs 3-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adding Engine Oil 6-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adding Equipment to the Outside of Your Vehicle 6-3 . . . . . .
Air Bag 1-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How Does it Restrain 1-25 . . . . . . . . . . . . . . . . . . . . . . . . . .
How it Works 1-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Location 1-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Readiness Light 1-22, 2-62 . . . . . . . . . . . . . . . . . . . . . . . . .
Servicing 1-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
What Makes it Inflate 1-24 . . . . . . . . . . . . . . . . . . . . . . . . . .
What Will You See After it Inflates 1-25 . . . . . . . . . . . . . . .
When Should it Inflate 1-24 . . . . . . . . . . . . . . . . . . . . . . . . .
Air Cleaner/Filter 6-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Conditioning 3-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Conditioning Refrigerants 6-65 . . . . . . . . . . . . . . . . . . . . .
Air Control, Climate Control System 3-3, 3-4 . . . . . . . . . . . . .
Alarm, Theft-Deterrent System 2-14 . . . . . . . . . . . . . . . . . . . .
Alignment and Balance, Tire 6-46 . . . . . . . . . . . . . . . . . . . . . .
Aluminum Wheels, Cleaning 6-52 . . . . . . . . . . . . . . . . . . . . . .
Antenna, Power 3-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Antifreeze 6-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Anti
-Lock
Brake System Warning Light 2-64, 4-7 . . . . . . . . . . . . . . . .
Brakes 4-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Anti-Lockout Feature 2-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Anti-Theft, Radio 3-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appearance Care 6-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appearance Materials, Vehicle Care Chart 6-54 . . . . . . . . . . .
Apply Brake To Shift Message 2-71 . . . . . . . . . . . . . . . . . . . .
Arbitration Program 7-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Armrest, Storage 2-49, 2-50 . . . . . . . . . . . . . . . . . . . . . . . . . .
Ashtrays 2-50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Assist Handles 2-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio Equipment, Adding 3-30 . . . . . . . . . . . . . . . . . . . . . . . .
Audio Steering Wheel Controls 3-28 . . . . . . . . . . . . . . . . . . . .
Audio System, Tips 3-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio Systems 3-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Door Locks 2-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Pull-Down Feature, Trunk Lid 2-12 . . . . . . . . . . . .
Automatic Transaxle
Overdrive 2
-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shifting 2-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting Your Engine 2-19 . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid 6-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 2-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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8-2
Battery 6-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charging System Indicator Light 2-62 . . . . . . . . . . . . . . . . .
Jump Starting 5-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Not Charge Message 2-72 . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement, Remote Keyless Entry 2-7 . . . . . . . . . . . . . . .
Voltage High Message 2-72 . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage Low Message 2-72 . . . . . . . . . . . . . . . . . . . . . . . . .
Warnings 5-3, 5-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Savers 2-43, 2-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BBB Auto Line 7-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Better Business Bureau Mediation 7-3 . . . . . . . . . . . . . . . . . . .
Blade Replacement, Windshield Wipers 6-39 . . . . . . . . . . . . .
Blizzard 4-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake
Adjustment 6
-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid 6-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Master Cylinder 6-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking 2-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pedal Travel 6-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing System Parts 6-32 . . . . . . . . . . . . . . . . . . . . . . . .
System Warning Light 2-62 . . . . . . . . . . . . . . . . . . . . . . . . .
Trailer 4-34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transaxle Shift Interlock (BTSI) 2-29 . . . . . . . . . . . . . . . . .
Vacuum Problem Message 2-72 . . . . . . . . . . . . . . . . . . . . . .
Wear 6-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brakes, Anti-Lock 4-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Braking 4-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Braking in Emergencies 4-10 . . . . . . . . . . . . . . . . . . . . . . . . . .
Break-In, New Vehicle 2-17 . . . . . . . . . . . . . . . . . . . . . . . . . .
Brightness Control 2-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BTSI 2
-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bulb Replacement 6-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Center High-Mounted Stoplamp 6-36 . . . . . . . . . . . . . . . . .
Front Turn Signal Lamps 6-39 . . . . . . . . . . . . . . . . . . . . . . .
Headlamps 6-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Turn Signal Lamp 6-38 . . . . . . . . . . . . . . . . . . . . . . . .
Taillamps 6-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Capacities and Specifications 6-65 . . . . . . . . . . . . . . . . . . . .
Carbon Monoxide 2-30, 4-28, 4-34 . . . . . . . . . . . . . . . . . . . .
Carpet Cleaning 6-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cassette Tape Player Care 3-30 . . . . . . . . . . . . . . . . . . . . . . . .
Cassette Tape Players 3-12, 3-19 . . . . . . . . . . . . . . . . . . . . . . .
CD Adapter Kits 3-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CD Changer, Trunk-Mounted 3-23 . . . . . . . . . . . . . . . . . . . . .
Cellular Telephone 2-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Center Console Storage 2-49 . . . . . . . . . . . . . . . . . . . . . . . . . .
Center High-Mounted Stoplamp Bulb Replacement 6-36 . . . .
Center Passenger Position 1-31 . . . . . . . . . . . . . . . . . . . . . . . .
Central Door Unlocking System 2-4 . . . . . . . . . . . . . . . . . . . .
Certification Label 4-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chains, Safety 4-34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chains, Tire 6-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Change Engine Oil Message 2-72 . . . . . . . . . . . . . . . . . . . . . .
Change Trans Fluid Message 2-72 . . . . . . . . . . . . . . . . . . . . . .
Changing a Flat Tire 5-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charging System Indicator Light 2-62 . . . . . . . . . . . . . . . . . . .
Check Brake Fluid Message 2-84 . . . . . . . . . . . . . . . . . . . . . .
Check Coolant Level Message 2-84 . . . . . . . . . . . . . . . . . . . . .