2003 Oldsmobile Alero brakes

Replacing Brake System Parts
The braking system on a vehicle is complex. Its many
parts have
to be of top quality and work well together if
the vehicle is to have really good braking. Your
vehicle was designed and tested with top-quality
GM
brake parts. When you replace parts of your braking
system
- for example, when your brake linings
wear down and you need new ones put in
- be sure
you get new approved replacement parts. If you
don’t, your brakes may no longer work properly. For
example,
if someone puts in brake linings that are wrong
for your vehicle, the balance between your front and
rear brakes can change
- for the worse. The braking
performance you’ve come
to expect can change in
replacement brake parts.
many other ways if someone puts in the wrong
Battery
Your new vehicle comes with a maintenance free
ACDelco@ battery. When it’s time for a new battery, get
one that has the replacement number shown on the
original battery’s label. We recommend an ACDelcoC”-‘
battery. See
Engine Compartment Overview on
page
5- 12 for battery location.
Warning; Battery posts, terminals and related
accessories contain lead and lead compounds,
chemicals known to the State of California to cause
cancer and reproductive harm. Wash hands after
handling.
Vehicle Storage
If you’re not going to drive your vehicle for 25 days or
more, remove the black, negative
(-) cable from
the battery. This will help keep your battery from
running down.
Batteries have acic bat can burn you and gas
that can explode. You can be badly hurt
if you
aren’t careful. See “Jump Starting” in the Index
for tips
on working around a battery without
I 3--L ’ =
rrnttjqrr hl Irt.
Contact your dealer to learn how to prepare your
vehicle for longer storage periods.
Also, for your audio system, see
Theft-Deterrent
Feature (Non-RDS Radios) on page
3-64 or
I nefi-Deterrent Feature (RDS RaQiosj on page 3-64. -.
5-41

Used Replacement Wheels
- wmmu
I
Tire Chains
Putting a used wheel on your vehicle is
dangerous. You can’t know how
it’s been used
or how far
it’s been driven. It could fail
suddenly and cause a crash. If you have to replace a wheel, use a new
GM original
equipment wheel.
I
If your ve :le s FLL ;OR16 re tires, ,,n’t
use tire chains, there’s not enough clearance.
Tire chains used on a vehicle without the
proper amount of clearance can cause damage
to the brakes, suspension or other vehicle
parts. The area damaged by the tire chains
could cause you to lose control of your vehicle
and you or others may
be injured in a crash.
Use another type of traction device only
if its
manufacturer recommends
it for use on your
vehicle and tire size combination and road
conditions. Follow that manufacturer’s
instructions. To help avoid damage to your
vehicle, drive slowly, readjust or remove the device if it’s contacting your vehicle, and don’t spin your wheels.
If you do find traction devices that will
fit,
install them on the front tires.
5-60

Engine Compartment Fuse Block
The engine compartment fuse block is located on the
driver’s side of the engine compartment, near the
battery. Fuse 1
2
3
4
5
6
7
8
Relays
9
10
11
12
13
14
15
Usage
Ignition Switch
Right Electrical Center-Fog Lamps,
Radio, Body Function Control
Module, Interior Lamps
Left Electrical Center-Stop Lamps,
Hazard Lamps, Body Function
Control Module, Cluster, Climate
Control System
Anti-Lock Brakes
Left Electrical Center-Power Seats,
Power Mirrors, Door Locks, Trunk
Release, Audio Amplifier, Remote
Keyless Entry
Not Used
Ignition Switch
Cooling Fan
#I
Usage
Rear Defog
Not Used
Starter
Cooling Fan
#1
HVAC Blower (Climate Control)
Cooling Fan
#2
Cooling Fan
5-84

Relays 16
17
18
19
20 21
22
Fuses
23-32 33
34
35
36
37
36
39
40 Usage
Air Conditioning Compressor
Not Used
Fuel Pump
Automatic Headlamp System
Automatic Headlamp System
Horn
Daytime Running Lamps (DRL)
Usage
Spare Fuse Holder
Rear Defog
ACC~SSGP~ Power Outlets, Cigarette
Lighter
Generator Not Used
Air Conditioning Compressor, Body
Function Control Module
Powertrain Control Module (PCM)
Anti-Lock Brakes (ABS)
A ..I -._-- +:- T --.---., I, r\ULUI I Idllb I I C€l13C€AlG
Fuses 41
42
43
44
45
46 47
48 49
50
51
52
53
54
55
56
57 Usage
Ignition System
Back-up Lamps, Brake Transaxle
Shift Interlock
Horn
PCM
Parking Lamps
Climate Control System, Air
Conditioning
Canister Vent Valve, Exhaust
Oxygen Sensors
Fuel Pump, Injectors
Not Used
Right Headlamp
Left Headlamp
Cooling Fan
#2
HVAC Blower (Climate Control)
Crank Cooling Fan
#2 Ground
Fuse Puller for Mini Fuses
Not Used
5-85

Scheduled Maintenance
The services shown in this schedule up to 100,000 miles
(1
66 000 km) should be repeated after 100,000 miles
(1
66 000 km) at the same intervals for the life of
this vehicle. The services shown at 150,000 miles
(240 000 km) should be repeated at the same interval
after 150,000 miles
(240 000 km) for the life of this
vehicle.
See
Part B: Owner Checks and Services on page 6-9
and Part C: Periodic Maintenance Inspections on
page
6- 13.
Footnotes
t The U.S. EfMrmmef%al Prdectim Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to
the completion of the vehicle's useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the
,iia;ii;eiiaiic.e be ,.ec.ui.u'eu'.
+ A good time to check your brakes is during tire
rotation. See Brake System Inspection on page
6-14.
Engine Oil Scheduled Maintenance
Change engine oil and filter as indicated by the GM
Oil Life SystemTM (or every 12 months, whichever
occurs first). Reset the system.
Your vehicle has a computer system that lets you know
when to change the engine oil and filter. This
is
based on engine revolutions and engine temperature,
and not on mileage. Based on driving conditions,
the mileage at which an oil change will be indicated can
vary considerably. For the oil life system to work
properly, you must reset the system every time the oil is
changed.
When the system has calculated that
oil life has been
diminished, it
wi!! indicate that an oil change is
necessary. A CHANGE OIL light will come on. Change
your oil as soon as possible within the next two
times you stop for fuel. It is possible that,
if you are
driving under the best conditions, the oil life system may
not indicate that an oil change is necessary for over a
year. However, your engine oil and filter must
be
must be reset. It is also important to check your oil
regularly and keep it at the proper level.
chs-mgd
!ezst s-ve 2 ye2r 2nd 2t this ?im,e the cwctam 'J -*-* ' *
6-5

Fuel System Inspection
Inspect the complete fuel system for damage or leaks.
Engine Cooling System Inspection
Inspect the hoses and have them replaced if they
are cracked, swollen or deteriorated. Inspect all pipes,
fittings and clamps; replace as needed. Clean the
outside of the radiator and air conditioning condenser.
To help ensure proper operation, a pressure test of
the cooling system and pressure cap is recommended
at least once a year.
Throttle System Inspection
Inspect the throttle system for interference or binding,
and for damaged or missing parts. Replace parts
as needed. Replace any components that have high
effort or excessive wear.
Do not lubricate accelerator
and cruise control cables.
Brake System Inspection
Inspect the complete system. Inspect brake lines and
hoses for proper hook-up, binding, leaks, cracks,
chafing, etc. Inspect disc brake pads for wear and rotors
for surface condition. Inspect other brake parts,
including calipers, parking brake, etc. You may need to
have your brakes inspected more often
if your driving
habits or conditions result in frequent braking.
6-1 4

Service Publications Ordering
Information
Service Manuals
Service Manuals have the diagnosis and repair
information on engines, transmission, axle, suspension,
brakes, electrical, steering, body, etc.
RETAIL SELL PRICE:
$120.00
Transmission, Transaxle, Transfer
Case Unit Repair Manual
This manual provides information on unit repair service
procedures, adjustments, and specifications for GM
transmissions, transaxles, and transfer cases.
RETAIL SELL PRICE:
$50.00
Service Bulletins
Service Bulletins give technical service information
needed to knowledgeably service General Motors cars
and trucks. Each bulletin contains instructions to
assist in the diagnosis and service of your vehicle.
In Canada, information pertaining to Product Service
Bulletins can be obtained by contacting your General
Motors dealer or by calling 1-800-GM-DRIVE
(1 -800-463-7483).
Owner’s Information
Owner publications are written specifically for owners
and intended to provide basic operational information
about the vehicle. The owner’s manual will include
the Maintenance Schedule for all models.
in-Portfolio: Includes
a Portfolio, Owner’s Manual, and
Warranty Booklet.
RETAIL SELL PRICE:
$35.00
Without Portfolio: Owner’s Manual only.
RETAIL SELL PRICE:
$25.00
7-1 0

Backglass Antenna .......................................... 3-66
Backing Up
.................................................... 4-40
Battery
.......................................................... 5-41
Battery Replacement
......................................... 2-6
Battery Run-Down Protection
............................ 3-1 7
Before Leaving on a Long Trip
......................... 4-22
Body Lubrication Service
.................................. 6-1 1
Brake
Parking
................................... .... 2-26
System Inspection
.................... .... 6-14
System Warning Light
................... .... 3-28
Brake Adjustment
............................................ 5-40
Brake Fluid
.................................................... 5-38
Brake Pedal Travel
......................................... 5-40
Brake Wear
................................................... 5-40
Brakes
................................ ................... 5-38
Braking
................................... ................. 4-6
Break-in, New Vehicle
..................................... 2-17
Bulb Replacement
........................................... 5-49
Center High-Mounted Stoplamp (CHMSL)
........ 5-50
Front Turn Signal and Parking Lamps ............. 5-50
Headlamp Aiming .. .......................... 5-47
Braking
in Emergencies
............. ............. 4-8
Halogen Bulbs
............................................ 5-49
Headlamps
........ .......................... 5-49 Bulb
Replacement (cont.)
Replacement Bulbs
...................................... 5-51
Taillamps, Turn Signal. and Stoplamps ............ 5-50
Buying New Tires ........................................... 5-56
C
............
California Fuel ........................ ...... 5-6
Canada
......................................... .. 7-4
Canadian Owners
...............................
Canadian Roadside Assistance ........................... 7-7
Capacities and Specifications
............................ 5-86
Carbon Monoxide
................... 4.25. 4.36. 4-1 1. 4-30
Care
of
Safety Belts ........ ................ 5-75
Care of Your
..... II
Cassette Tape Player ... ................ 3-65
CD Player
.................................................. 3-66
Cassette Deck Service
...................................... 6-9
Center Console Storage Area
........................... 2-34
Center High-Mounted Stoplamp (CHMSL)
........... 5-50
Center Rear Passenger Position, Safety Belts ..... 1-50
Chains, Tires
.................................................. 5-60
Charging System Light
.................................... 3-27
Check Engine Light
............................................... 3-31
Checking Coolant
............................................ 5-25
CDS
.......................................................... 3-66
Cassette Tape Messages
................................. 3-62
3