2003 PONTIAC GRAND AM brakes

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 make a moderate brake stop, your
disc brakes adjust for wear.
If you rarely make a
moderate or heavier stop, then your brakes might not
adjust correctly. If you drive in that way, then
- very
carefully
- make a few moderate brake stops about
every
1,000 miles (1 600 km), so your brakes will adjust
properly.
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 many
other ways
if someone puts in the wrong replacement
brake parts.
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 ACDelco@
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.
5-42

Used Replacement Wheels 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.
If your vehicle has P225/50R16 size tires, don’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
Usage
Ignition Switch
Right Electrical Center-Fog Lamps,
Radio, Body Function Control
Module, Interior Lamps Fuse
3
4
5
6
7
8
Relays
9
10
11
12
13
14
15 Usage
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
3e
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
Accessory Power Outlets,
Cigarette Lighter
Generator
Not Used
Air Conditioning Compressor, Body
Function Control Module
Powertrain Control Module (PCM)
Anti-Lock Brakes (ABS)
At Itnmatir- TrQncQvlo , l,..."l, IULIV I I UI I"cIt\I"
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
Coolina 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
QQO 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. Environmental Protection 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
maintenance be recorded.
+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 will 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
changed at least once a year and at this time the svstem
must be reset.
It is also important to check your oil
regularly and keep it at the proper level.
6-5

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

To contact NHTSA, you may either call the Auto Safety
Hotline toll-free at 1-800-424-9393 (or 366-01 23 in
the Washington, D.C. area) or write to:
NHTSA,
U.S. Department of Transportation
Washington, D.C. 20590
You can also obtain other information about motor
vehicle safety from the hotline.
Reporting Safety Defects to the
Canadian Government
If you live in Canada, and you believe that your vehicle
has a safety defect, you should immediately notify
Transport Canada, in addition
to notifying General
Motors of Canada Limited. You may write
to:
Transport Canada
330 Sparks Street
Tower C Ottawa Ontario K1A ON5
Reporting Safety Defects to General
wiukul a k,In+nw-
In addition to notifying NHTSA (or Transport Canada) in
a situation like this, we certainly hope YOU’II notify us.
Please call us at 1-800-762-2737, or write:
Pontiac-GMC Customer Assistance Center
P.O. Box 33172
Detroit, MI 48232-51
72
In Canada, please call us at 1-800-263-3777 (English)
or 1-800-263-7854 (French). Or, write:
General Motors of Canada Limited
Customer Communication Centre,
163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
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
transmissions, transaxles, and transfer cases. RETAIL SELL PRICE:
$50.00
~IUC&UICS, adjusiII~~~~is, ar-~rlj sp&iic;aiiur~s iur Givi
7-9

Backing Up .................................................... 4-41
Battery
.......................................................... 5-42
Battery Replacement
......................................... 2-6
Battery Run-Down Protection
............................ 3-1 7
Before Leaving on a Long Trip
......................... 4-23
Body Lubrication Service
.................................. 6-10
Brake Parking
...................................................... 2-29
System Inspection
....................................... 6-1 4
System Warning Light
.................................. 3-26
Brake Adjustment
............................................ 5-42
Brake Fluid
.................................................... 5-39
Brake Pedal Travel
......................................... 5-42
Brake System Warning Light
............................ 3-26
Brake Wear
................................................... 5-41
Brakes .......................................................... 5-39
Braking
........................................................... 4-6
Braking in Emergencies
..................................... 4-9
Break-in, New Vehicle
..................................... 2-18
Bulb Replacement
........................................... 5-49
Center High-Mounted Stoplamp (CHMSL)
........ 5-50
Front Turn Signal and Parking Lamps
............. 5-50
Halogen Bulbs ............................................ 5-49
Replacement Bulbs ...................................... 5-51
Buying New Tires
........................................... 5-56
Headlamps
................................................. 5-49
Taillamps, Turn Signal, and Stoplamps
............ 5-51
C
California Fuel .................................................. 5-6
Canada
........................................................... 7-4
Canadian Owners
................................................ ii
Canadian Roadside Assistance ........................... 7-6
Capacities and Specifications
............................ 5-86
Carbon Monoxide
........................... 4-26, 4-37, 4-33
Care of Safety Belts
........................................ 5-75
Care of Your
Cassette Tape Player
................................... 3-70
CDS
.......................................................... 3-71
Cassette Deck Service ...................................... 6-9
Cassette Tape Messages
................................. 3-65
Center Console Storage Area
........................... 2-37
Center High-Mounted Stoplamp (CHMSL)
........... 5-50
Center Rear Passenger Position, Safety Belts
..... 1-27
Chains, Tires
.................................................. 5-60
Charging System Light
.................................... 3-26
Check
Checking Coolant
............................................ 5-25
Checking Engine Oil ........................................ 5-15
Checking Things Under the Hood
...................... 5-10
Checking Your Restraint Systems ...................... 1-60
Chemical Paint Spotting
................................... 5-78
CD Player
.................................................. 3-72
CD Adapter Kits
............................................. 3-66
Engine Light
............................................... 3-31
2