2001 CADILLAC DEVILLE light

6-30
Brakes
Brake Fluid
Your brake master cylinder reservoir is on the driver's
side of the engine compartment. See ªEngine
Compartment Overviewº in the Index. 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 fluidlevel 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.

6-32 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 tighten wheel nuts in the
proper sequence to GM torque 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.

6-40
The vehicle should be properly prepared as follows:

The vehicle should be placed so the headlamps are
25 ft. (7.6 m) from a light colored wall or other
flat surface.

The vehicle must have all four tires on a perfectly
level surface which is level all the way to the wall or
other flat surface.

The vehicle should be placed so it is perpendicular to
the wall or other flat surface.

The vehicle should not have any snow, ice or mud
attached to it.

The vehicle should be fully assembled and all other
work stopped while headlamp aiming is being done.

The vehicle should be normally loaded with a full
tank of fuel and one person or 160 lbs. (75 kg) on
the driver's seat.

Tires should be properly inflated.
Headlamp aiming is done with the vehicle low beam
lamps. The high beam lamps will be correctly aimed if
the low beam lamps are aimed properly.
The headlamp aiming devices are under the hood near
the headlamps.
If you believe your headlamps need horizontal
(left/right) adjustment, follow the horizontal aiming
procedure. If you believe your headlamps need only
vertical (up/down) adjustment, follow only the vertical
aiming procedure.
Adjustment screws can be turned with an E8 Torx

socket or T15 Torx screwdriver.

6-53 Uniform Tire Quality Grading
Quality grades can be found where applicable on the tire
sidewall between tread shoulder and maximum section
width. For example:
Treadwear 200 Traction AA Temperature A
The following information relates to the system
developed by the United States National Highway
Traffic Safety Administration, which grades tires by
treadwear, traction and temperature performance.
(This applies only to vehicles sold in the United States.)
The grades are molded on the sidewalls of most
passenger car tires. The Uniform Tire Quality Grading
system does not apply to deep tread, winter
-type snow
tires, space
-saver or temporary use spare tires, tires with
nominal rim diameters of 10 to 12 inches (25 to 30 cm),
or to some limited
-production tires.
While the tires available on General Motors passenger
cars and light trucks may vary with respect to these
grades, they must also conform to federal safety
requirements and additional General Motors Tire
Performance Criteria (TPC) standards.Treadwear
The treadwear grade is a comparative rating based on
the wear rate of the tire when tested under controlled
conditions on a specified government test course.
For example, a tire graded 150 would wear one and
a half (1 1/2) times as well on the government course
as a tire graded 100. The relative performance of tires
depends upon the actual conditions of their use,
however, and may depart significantly from the norm
due to variations in driving habits, service practices and
differences in road characteristics and climate.
Traction
-- AA, A, B, C
The traction grades, from highest to lowest, are AA,
A, B, and C. Those grades represent the tire's ability to
stop on wet pavement as measured under controlled
conditions on specified government test surfaces of
asphalt and concrete. A tire marked C may have poor
traction performance. Warning: The traction grade
assigned to this tire is based on straight
-ahead braking
traction tests, and does not include acceleration,
cornering, hydroplaning, or peak traction characteristics.

6-64
GM Vehicle Care/Appearance Materials
PART NUMBERSIZEDESCRIPTIONUSAGE
99495423 in. x 25 in.Polishing Cloth ± Wax TreatedExterior polishing cloth
105017216 oz. (0.473 L)Tar and Road Oil RemoverRemoves tar, road oil and asphalt
105017316 oz. (0.473 L)Chrome Cleaner and PolishUse on chrome, stainless steel, nickel, copper and brass
105017416 oz. (0.473 L)White Sidewall Tire CleanerRemoves soil and black marks from whitewalls
105021432 oz. (0.946 L)Vinyl CleanerCleans vinyl tops, upholstery and convertible tops
105042723 oz. (0.680 L)Glass CleanerRemoves dirt, grime, smoke and fingerprints
1052918**8 oz. (0.237 L)Armor All
ProtectantProtects leather, wood, acrylics, Plexiglas
, plastic,
rubber and vinyl
105292516 oz. (0.473 L)Multi-Purpose
Interior CleanerCleans carpets, seats, interior trim, door panels
and floor mats
105292916 oz. (0.473 L)Wheel CleanerSpray on and rinse with water
10529308 oz. (0.237 L)Capture Dry Spot RemoverAttracts, absorbs and removes soils on fabric
123457212.5 sq. ft.Synthetic ChamoisShines vehicle without scratching
1234572512 oz. (0.354 L)Silicone Tire ShineSpray on tire shine
12377964*16 oz. (0.473 L)Finish EnhancerRemoves dust, fingerprints and surface contaminants
12377966*16 oz. (0.473 L)Cleaner WaxRemoves light scratches and oxidation and protects finish
12377984*16 oz. (0.473 L)Surface CleanerRemoves contaminants, blemishes and swirl marks
See your General Motors Parts Department for these products.
See ªRecommended Fluids and Lubricantsº in the Maintenance Schedule booklet.
* For exterior use only.
** Not recommended for use on instrument panels.

6-67 Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected from
short circuits by a combination of fuses and circuit
breakers. This greatly reduces the chance of fires 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. If a MaxiFuse

should blow, see your dealer
for service immediately.
If you ever have a problem on the road and don't have a
spare fuse, you can ªborrowº one that has the same
amperage. Pick some feature of your vehicle that you
can get along without
-- like the radio or cigarette
lighter
-- and use its fuse, if it is the correct amperage.
Replace it as soon as you can.
The MaxiFuses are located in two Bussed Electrical
Centers (BEC), one located in the engine compartment
on the passenger's side and the other under the rear seat
on the driver's side. If a MaxiFuse should blow, have
your vehicle serviced by your dealer immediately.Engine Compartment Bussed Electrical CenterThe Engine Compartment Bussed Electrical Center
(BEC) is located next to the engine on the passenger's
side of the vehicle. For more information on location,
see ªEngine Compartment Overviewº in the Index.
To access the fuse block, push in the two tabs located on
the top and the bottom of the fuse block cover.
Fuse 22 or 23 can be moved to the outer position to
enable the accessory power outlets or cigarette lighter
when the ignition is not on. See your dealer for
additional assistance, if needed.

6-69
Minifuses Usage
20 Oxygen Sensor
21 Injector Bank #1
22 Cigar Lighter #2
23 Cigar Lighter #1
24 Daytime Running Lamps
25 Horn
26 Air Conditioner Clutch
Micro Relays Usage
27 Headlamp High Beam
28 Headlamp Low Beam
29 Fog Lamps
30 Daytime Running Lamps
31 Horn
32 Air Conditioner Clutch
Mini Relays Usage
33 Not Used
34 AccessoryMini Relays Usage
35 Not Used
36 Starter 1
37 Cooling Fan Secondary
38 Ignition 1
39 Cooling Fan Series/Parallel
40 Cooling Fan Primary
Maxibreaker Usage
41 Starter
MaxiFuses Usage
42 Not Used
43 Not Used
44 Anti
-Lock Brake System
45 Air Pump
46 Cooling Fan Secondary
47 Cooling Fan Primary
The spare fuses are located in numbers 48 through 52.
The fuse puller is located in number 53.

6-73
Minifuses Usage
20 Park/Reverse
21 Audio
22 Retained Accessory Power
for Sunroof
23 Lamps, Parking Left
24 Night Vision
25 Passenger Door Module
26 Body
27 Export Lights, Power Locks
28 Rear HVAC Blower
29 Ignition Switch
30 Hazard Signal
31 Reverse, Locks
32 Continuous Variable Road
Sensing Suspension
33 Heating, Ventilation,
Air ConditioningMinifuses Usage
34 Ignition 3 Rear
35 Antilock Braking System
36 Heated Seat, Right Front
37 Heated Seat, Right Rear
38 Dimmer
Micro Relays Usage
39 Fuel Pump
40 Parking Lamps
41 Ignition 1
42 Park Brake A
43 Park Brake B
44 Park Shift Interlock
45 Reverse Lamps
46 Retained Accessory Power
for Sunroof