brakes BUICK CENTURY 2003 Owner's Guide

Scheduled Maintenance
The services shown in this schedule up to 100,000 miles
(166 000 km) should be repeated after 100,000 miles
(166 000 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 6-10andPart C: Periodic MaintenanceInspections on
page 6-14.
Footnotes
²The 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.Whenever the tires are rotated, the Tire In¯ation Monitor
System must be reset.
+A good time to check your brakes is during tire
rotation. See Brake System Inspection on page 6-15.
Engine Oil Scheduled Maintenance
Change engine oil and ®lter as indicated by the GM
Oil Life System (or every 12 months, whichever
occurs ®rst). Reset the system.
Your vehicle has a computer system that lets you know
when to change the engine oil and ®lter. 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.
6-5

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,
cha®ng, etc. Inspect disc brake pads for wear and rotors
for surface condition. Also inspect drum brake linings
for wear and cracks. Inspect other brake parts, including
drums, wheel cylinders, calipers, parking brake, etc.
Check parking brake adjustment. You may need to have
your brakes inspected more often if your driving
habits or conditions result in frequent braking.
6-15

Reporting Safety Defects to General
Motors
In addition to notifying NHTSA (or Transport Canada) in
a situation like this, we certainly hope you'll notify us.
Please call us at 1-800-521-7300, or write:
Buick Customer Assistance Center
P.O. Box 33136
Detroit, MI 48232-5136
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
procedures, adjustments, and speci®cations for GM
transmissions, transaxles, and transfer cases.
RETAIL SELL PRICE: $50.00
7-11

B
Backing Up....................................................4-39
Battery Replacement......................................... 2-8
Battery Rundown Protection.............................3-15
Battery..........................................................5-42
Before Leaving on a Long Trip.........................4-23
Body Lubrication Service..................................6-11
Brake Fluid....................................................5-39
Brake Wear...................................................5-41
Brake............................................................2-26
Parking......................................................2-26
System Inspection.......................................6-15
System Warning Light..................................3-27
Brakes..........................................................5-39
Braking in Emergencies..................................... 4-9
Braking........................................................... 4-6
Break-In, New Vehicle.....................................2-19
Bulb Replacement...........................................5-51
Back-Up Lamps...........................................5-55
Center High-Mounted Stoplamp (CHMSL)........5-53
Front Turn Signal and Parking Lamps.............5-52
Halogen Bulbs............................................5-51
Headlamp Aiming........................................5-49
Headlamps.................................................5-51
Replacement Bulbs......................................5-55
Taillamps, Turn Signal, and Stoplamps............5-54
Buying New Tires...........................................5-62
C
California Fuel.................................................. 5-6
Canada ± Customer Assistance.......................... 7-5
Canadian Owners................................................ ii
Canadian Roadside Assistance........................... 7-7
Capacities and Speci®cations............................5-94
Carbon Monoxide...................4-26, 4-35, 2-13, 2-30
Care of.........................................................5-82
Safety Belts................................................5-82
Your Cassette Tape Player............................3-51
Your CD Player...........................................3-52
Your CDs ...................................................3-52
Cassette Tape Messages.................................3-45
Cassette Tape Player Service...........................6-10
Center High-Mounted Stoplamp (CHMSL)...........5-53
Center Passenger Position, Safety Belts.............1-22
Chains, Tires..................................................5-66
Charging System Light....................................3-26
Checking Coolant............................................5-24
Checking Engine Oil........................................5-13
Checking Things Under the Hood......................5-10
Checking Your Restraint Systems......................1-63
Check...........................................................3-31
Engine Light...............................................3-31
Chemical Paint Spotting...................................5-85
Child Restraints..............................................1-36
Child Restraint Systems...............................1-36
2

Tires (cont.)
Wheel Replacement.....................................5-64
When It Is Time for New Tires......................5-61
To Use the Engine Coolant Heater....................2-22
Top Strap Anchor Location...............................1-42
Top Strap......................................................1-40
Torque Lock...................................................2-28
Total Weight on Your Vehicle's Tires..................4-38
Towing..........................................................4-32
Recreational Vehicle.....................................4-32
Towing a Trailer..........................................4-35
Your Vehicle...............................................4-32
Traction.........................................................3-28
Enhanced Traction System (ETS) Warning
Light......................................................3-28
Enhanced Traction System (ETS)...................4-10
Low Light...................................................3-29
Trailer Brakes.................................................4-38
Transaxle Operation, Automatic.........................2-23
Transaxle.......................................................5-19
Fluid, Automatic...........................................5-19
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-11Transportation Options...................................... 7-8
Trip Odometer................................................3-24
Trunk Assist Handle........................................2-14
Trunk Lock....................................................2-13
Trunk............................................................2-13
Turn and Lane-Change Signals.......................... 3-6
Turn Signal/Multifunction Lever........................... 3-5
Turn Signals When Towing a Trailer..................4-40
U
Underbody Flushing Service.............................6-13
Underhood Fuse Block....................................5-91
Understanding Radio Reception........................3-50
Uniform Tire Quality Grading............................5-63
United States ± Customer Assistance.................. 7-5
Unlocking the Theft-Deterrent Feature After a
Power Loss................................................3-49
Used Replacement Wheels..............................5-65
Using Cleaner on Fabric..................................5-80
14