2005 BUICK CENTURY maintenance

Transmission, Transaxle, Transfer
Case Unit Repair Manual
This manual provides information on unit repair service
procedures, adjustments, and specications 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 specically 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
Current and Past Model Order Forms
Service Publications are available for current and
past model GM vehicles. To request an order form,
please specify year and model name of the vehicle.
ORDER TOLL FREE: 1-800-551-4123
Monday-Friday 8:00 AM - 6:00 PM
Eastern Time
For Credit Card Orders Only
(VISA-MasterCard-Discover), visit Helm, Inc. on the
World Wide Web at: www.helminc.com
Or you can write to:
Helm, Incorporated
P. O. Box 07130
Detroit, MI 48207
Prices are subject to change without notice and without
incurring obligation. Allow ample time for delivery.
Note to Canadian Customers: All listed prices are
quoted in U.S. funds. Canadian residents are to make
checks payable in U.S. funds.
7-12

A
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment............................5-90
Air Cleaner/Filter, Engine.................................5-18
Air Conditioning......................................3-18, 3-21
Airbag
Readiness Light..........................................3-31
Airbag Sensing and Diagnostic Module (SDM)......... 7-9
Airbag System................................................1-49
How Does an Airbag Restrain?......................1-55
Servicing Your Airbag-Equipped Vehicle..........1-58
What Makes an Airbag Inate?......................1-55
What Will You See After an
Airbag Inates?........................................1-56
When Should an Airbag Inate?....................1-54
Where Are the Airbags?...............................1-52
Antenna, Fixed Mast.......................................3-66
Anti-Lock Brake System (ABS)........................... 4-7
Anti-Lock Brake, System Warning Light..............3-33
Appearance Care............................................5-82
Aluminum Wheels........................................5-87
Care of Safety Belts....................................5-85
Chemical Paint Spotting...............................5-88
Cleaning Exterior Lamps/Lenses....................5-86
Fabric/Carpet..............................................5-82
Finish Care.................................................5-86
Finish Damage............................................5-88
Glass Surfaces............................................5-85Appearance Care (cont.)
Instrument Panel.........................................5-85
Interior Plastic Components...........................5-85
Leather......................................................5-84
Sheet Metal Damage...................................5-88
Tires..........................................................5-87
Underbody Maintenance...............................5-88
Vehicle Care/Appearance Materials................5-89
Vinyl..........................................................5-84
Washing Your Vehicle...................................5-86
Weatherstrips..............................................5-85
Windshield and Wiper Blades........................5-87
Ashtrays........................................................3-18
Audio System(s).............................................3-44
Audio Steering Wheel Controls......................3-63
Care of Your Cassette Tape Player................3-65
Care of Your CD Player...............................3-66
Care of Your CDs........................................3-66
Chime Level Adjustment...............................3-66
Fixed Mast Antenna.....................................3-66
Radio with Cassette and CD.........................3-53
Radio with CD............................................3-45
Setting the Time..........................................3-44
Theft-Deterrent Feature................................3-63
Understanding Radio Reception.....................3-64
Automatic Transaxle
Fluid..........................................................5-19
Operation...................................................2-21
1

Child Restraints (cont.)
Top Strap Anchor Location............................1-39
Where to Put the Restraint...........................1-36
Chime Level Adjustment..................................3-66
Cigarette Lighter.............................................3-18
Cleaning
Aluminum Wheels........................................5-87
Exterior Lamps/Lenses.................................5-86
Fabric/Carpet..............................................5-82
Finish Care.................................................5-86
Glass Surfaces............................................5-85
Instrument Panel.........................................5-85
Interior Plastic Components...........................5-85
Leather......................................................5-84
Tires..........................................................5-87
Underbody Maintenance...............................5-88
Vinyl..........................................................5-84
Washing Your Vehicle...................................5-86
Weatherstrips..............................................5-85
Windshield and Wiper Blades........................5-87
Climate Control System
Air Filter, Passenger Compartment.................3-26
Dual..........................................................3-18
Dual Automatic............................................3-21
Outlet Adjustment........................................3-26
Comfort Guides, Rear Safety Belt.....................1-24
Compact Spare Tire........................................5-81Control of a Vehicle.......................................... 4-6
Convenience Net............................................2-33
Coolant
Engine Temperature Gage............................3-35
Engine Temperature Warning Light.................3-35
Heater, Engine............................................2-20
Cooling System..............................................5-27
Cornering Lamps............................................3-15
Courtesy Lamps.............................................3-15
Cruise Control Lever.......................................3-10
Cruise Control Light........................................3-41
Customer Assistance Information
Courtesy Transportation.................................. 7-8
Customer Assistance for Text
Telephone (TTY) Users............................... 7-4
Customer Assistance Offices........................... 7-4
Customer Satisfaction Procedure..................... 7-2
GM Mobility Program for Persons
with Disabilities.......................................... 7-6
Reporting Safety Defects to
General Motors........................................7-11
Reporting Safety Defects to the
Canadian Government..............................7-11
Reporting Safety Defects to the
United States Government.........................7-10
Roadside Assistance Program......................... 7-6
Service Publications Ordering Information........7-11
3

LATCH System
Child Restraints...........................................1-40
Securing a Child Restraint Designed for
the LATCH System...................................1-42
Leaving Your Vehicle.......................................2-12
Light
Airbag Readiness........................................3-31
Anti-Lock Brake System Warning...................3-33
Brake System Warning.................................3-32
Change Engine Oil......................................3-40
Charging System.........................................3-32
Cruise Control.............................................3-41
Door/Trunk Ajar Warning...............................3-42
Engine Coolant Temperature Warning.............3-35
Enhanced Traction System (ETS)
Warning Light..........................................3-34
Low Fuel Warning.......................................3-43
Low Traction...............................................3-34
Low Washer Fluid Warning...........................3-41
Malfunction Indicator....................................3-36
Oil Pressure...............................................3-40
Safety Belt Reminder...................................3-30
Security.....................................................3-41
Service Vehicle Soon...................................3-42
Tire Pressure..............................................3-36
Lighting
Delayed Entry.............................................3-16
Delayed Exit...............................................3-17
Entry.........................................................3-16Lockout Protection..........................................2-12
Locks
Door..........................................................2-10
Leaving Your Vehicle....................................2-12
Lockout Protection.......................................2-12
Power Door................................................2-11
Programmable Automatic Door Locks.............2-11
Loss of Control...............................................4-15
Low Fuel Warning Light...................................3-43
Low Traction Light..........................................3-34
Low Washer Fluid Warning Light.......................3-41
M
Maintenance Schedule
Additional Required Services........................... 6-6
At Each Fuel Fill........................................... 6-9
At Least Once a Month................................6-10
At Least Once a Year..................................6-10
Introduction.................................................. 6-2
Maintenance Footnotes.................................. 6-8
Maintenance Record....................................6-16
Maintenance Requirements............................. 6-2
Normal Maintenance Replacement Parts.........6-14
Owner Checks and Services........................... 6-9
Recommended Fluids and Lubricants.............6-13
Scheduled Maintenance................................. 6-4
Using Your................................................... 6-2
Your Vehicle and the Environment................... 6-2
7

Malfunction Indicator Light................................3-36
Manual Seats................................................... 1-2
Mirrors
Manual Rearview Mirror................................2-29
Manual Rearview Mirror with OnStar
®.............2-29
Outside Convex Mirror.................................2-30
Outside Power Mirrors..................................2-30
MyGMLink.com................................................ 7-4
N
New Vehicle Break-In......................................2-17
Normal Maintenance Replacement Parts............6-14
O
Odometer......................................................3-30
Odometer, Trip...............................................3-30
Off-Road Recovery..........................................4-13
Oil
Change Engine Oil Light...............................3-40
Engine.......................................................5-13
Pressure Light.............................................3-40
Older Children, Restraints................................1-27
Online Owner Center........................................ 7-4
OnStar
®System.............................................2-31
Other Warning Devices...................................... 3-6Outlet Adjustment............................................3-26
Outside
Convex Mirror.............................................2-30
Power Mirrors.............................................2-30
Overheated Engine Protection
Operating Mode..........................................5-26
Owner Checks and Services.............................. 6-9
Owners, Canadian............................................... ii
P
Park (P)
Shifting Into................................................2-25
Shifting Out of............................................2-26
Parking
Brake........................................................2-24
Over Things That Burn.................................2-27
Passenger Compartment Air Filter.....................3-26
Passing.........................................................4-13
PASS-Key
®II .................................................2-16
Power
Door Locks.................................................2-11
Electrical System.........................................5-91
Retained Accessory (RAP)............................2-19
Seat............................................................ 1-3
Steering Fluid.............................................5-34
Windows....................................................2-15
Programmable Automatic Door Locks.................2-11
8

Safety Belts (cont.)
Questions and Answers About Safety Belts........1-11
Rear Safety Belt Comfort Guides for
Children and Small Adults.........................1-24
Rear Seat Passengers.................................1-21
Right Front Passenger Position......................1-19
Safety Belt Extender....................................1-26
Safety Belt Use During Pregnancy.................1-19
Safety Belts Are for Everyone......................... 1-6
Shoulder Belt Height Adjuster........................1-18
Safety Warnings and Symbols.............................. iii
Scheduled Maintenance..................................... 6-4
Seats
Head Restraints............................................ 1-5
Manual........................................................ 1-2
Power Seat.................................................. 1-3
Reclining Seatbacks...................................... 1-4
Split Folding Rear Seat.................................. 1-6
Securing a Child Restraint
Center Rear Seat Position............................1-44
Designed for the LATCH System...................1-42
Rear Outside Seat Position...........................1-42
Right Front Seat Position..............................1-46
Security Light.................................................3-41
Service........................................................... 5-3
Adding Equipment to the Outside of
Your Vehicle.............................................. 5-5
Doing Your Own Work................................... 5-4Service (cont.)
Engine Soon Light.......................................3-36
Publications Ordering Information...................7-11
Vehicle Soon Light.......................................3-42
Servicing Your Airbag-Equipped Vehicle..............1-58
Setting the Time.............................................3-44
Sheet Metal Damage.......................................5-88
Shifting Into Park (P).......................................2-25
Shifting Out of Park (P)...................................2-26
Shoulder Belt Height Adjuster...........................1-18
Signals, Turn and Lane-Change.......................... 3-7
Spare Tire
Installing....................................................5-73
Removing...................................................5-71
Storing.......................................................5-79
Specications, Capacities.................................5-96
Speedometer..................................................3-30
Split Folding Rear Seat..................................... 1-6
Starting Your Engine.......................................2-19
Steering........................................................4-11
Steering Wheel Controls, Audio.........................3-63
Steering Wheel, Tilt Wheel................................. 3-6
Storage Areas
Convenience Net.........................................2-33
Front Storage Area......................................2-33
Glove Box..................................................2-33
Stuck in Sand, Mud, Ice or Snow......................4-30
Sun Visors.....................................................2-15
10