2004 BUICK CENTURY tow

Others, such as law enforcement, may have access to
the special equipment that can read the information
if they have access to the vehicle or SDM.
If your vehicle is equipped with OnStar, please check
the OnStar subscription service agreement or manual for
information on its operations and data collection.
Reporting Safety Defects
Reporting Safety Defects to the
United States Government
If you believe that your vehicle has a defect which could
cause a crash or could cause injury or death, you
should immediately inform the National Highway Traffic
Safety Administration (NHTSA), in addition to notifying
General Motors.
If NHTSA receives similar complaints, it may open an
investigation, and if it nds that a safety defect exists in
a group of vehicles, it may order a recall and remedy
campaign. However, NHTSA cannot become involved in
individual problems between you, your dealer or
General Motors.To contact NHTSA, you may either call the Auto Safety
Hotline toll-free at 1-800-424-9393 (or 366-0123 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 0N5
7-10

Customer Assistance Information
Courtesy Transportation.................................. 7-6
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................................................ 7-5
Reporting Safety Defects to General Motors....7-11
Reporting Safety Defects to the Canadian
Government............................................7-10
Reporting Safety Defects to the United States
Government............................................7-10
Roadside Assistance Program......................... 7-5
Service Publications Ordering Information........7-11
D
Daytime Running Lamps/Automatic Headlamp
System......................................................3-13
Defensive Driving............................................. 4-2
Defogging and Defrosting.........................3-20, 3-24
Delayed Entry Lighting.....................................3-15
Delayed Exit Lighting.......................................3-16
Delayed Headlamps........................................3-14
Delayed Locking............................................... 2-7
Dinghy Towing................................................4-33Doing Your Own Service Work........................... 5-3
Dolly Towing..................................................4-33
Dome Lamp...................................................3-16
Door
Locks........................................................2-10
Power Door Locks.......................................2-11
Programmable Automatic Door Locks.............2-11
Trunk Ajar Warning Light..............................3-42
Driver
Position, Safety Belt.....................................1-12
Driving
At Night.....................................................4-16
City...........................................................4-20
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Freeway.....................................................4-21
Hill and Mountain Roads..............................4-24
In Rain and on Wet Roads...........................4-17
Winter........................................................4-26
Driving On Grades..........................................4-44
Driving on Snow or Ice....................................4-27
Driving Through Deep Standing Water...............4-19
Driving Through Flowing Water.........................4-19
Driving with a Trailer.......................................4-42
Dual Automatic Climate Control System.............3-21
Dual Climate Control System............................3-18
4

E
Electrical System
Add-On Equipment......................................5-97
Fuses and Circuit Breakers...........................5-97
Headlamp Wiring.........................................5-97
Power Windows and Other Power Options......5-97
Windshield Wiper Fuses...............................5-97
Emergency Trunk Release Handle.....................2-14
Emissions Inspection and Maintenance
Programs...................................................3-39
Engine
Air Cleaner/Filter.........................................5-18
Battery.......................................................5-41
Change Engine Oil Light...............................3-41
Check and Service Engine Soon Light............3-36
Coolant......................................................5-22
Coolant Heater............................................2-21
Coolant Temperature Gage...........................3-35
Coolant Temperature Warning Light................3-35
Drive Belt Routing.......................................6-14
Engine Compartment Overview......................5-12
Exhaust.....................................................2-29
Oil .............................................................5-13
Overheating................................................5-25
Starting......................................................2-20
Engine Cooling When Trailer Towing..................4-45
Engine Oil Additives........................................5-16Enhanced Traction System (ETS)........................ 4-9
Warning Light.............................................3-34
Entry Lighting.................................................3-15
Event Data Records (EDR)................................ 7-9
Express-Down Window....................................2-16
Extender, Safety Belt.......................................1-27
Exterior Lamps...............................................3-12
F
Filter
Engine Air Cleaner......................................5-18
Finding a Program Type (PTY) Station.......3-49, 3-56
Finding a Station....................................3-46, 3-53
Finish Care....................................................5-92
Finish Damage...............................................5-93
Fixed Mast Antenna........................................3-64
Flash-to-Pass................................................... 3-6
Flat Tire........................................................5-74
Flat Tire, Changing.........................................5-75
Fluid
Automatic Transaxle.....................................5-19
Power Steering...........................................5-35
Windshield Washer......................................5-36
FM ...............................................................3-63
Folding Rear Seat............................................ 1-5
Following Distance..........................................4-43
5

Light (cont.)
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
Lighted Visor Vanity Mirrors..............................2-17
Loading Your Vehicle.......................................4-34
Lockout 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...............................................4-14
Low Fuel Warning Light...................................3-44
Low Traction Light..........................................3-34
Low Washer Fluid Warning Light.......................3-42M
Maintenance Schedule
Additional Required Services........................... 6-6
At Each Fuel Fill........................................... 6-8
At Least Once a Month.................................. 6-9
At Least Once a Year.................................... 6-9
Introduction.................................................. 6-2
Maintenance Footnotes.................................. 6-7
Maintenance Record....................................6-15
Maintenance Requirements............................. 6-2
Normal Maintenance Replacement Parts.........6-13
Owner Checks and Services........................... 6-8
Recommended Fluids and Lubricants.............6-12
Scheduled Maintenance................................. 6-4
Using Your................................................... 6-2
Your Vehicle and the Environment................... 6-2
Maintenance When Trailer Towing.....................4-45
Making Turns.................................................4-43
Malfunction Indicator Light................................3-36
Manual Operation...................................3-18, 3-22
Manual Seats................................................... 1-2
Matching Transmitter(s) to Your Vehicle............... 2-8
Mexico, Central America and Caribbean Islands/
Countries (Except Puerto Rico and U.S. Virgin
Islands) – Customer Assistance....................... 7-4
8

Power
Accessory Outlets........................................3-17
Door Locks.................................................2-11
Electrical System.........................................5-97
Six-Way Seats.............................................. 1-3
Steering Fluid.............................................5-35
Windows....................................................2-16
Power Steering...............................................4-10
Programmable Automatic Door Locks.................2-11
Q
Questions and Answers About Safety Belts.........1-10
R
Radiator Pressure Cap....................................5-25
Radio Data System (RDS).......................3-48, 3-55
Radio Messages.....................................3-51, 3-58
Radios..........................................................3-44
Care of Your Cassette Tape Player................3-63
Care of Your CD Player...............................3-64
Care of Your CDs........................................3-64
Radio with Cassette and CD.........................3-53
Radio with CD............................................3-45
Setting the Time..........................................3-45
Theft-Deterrent............................................3-62
Understanding Reception..............................3-63RDS Messages......................................3-50, 3-57
Reading Lamps..............................................3-16
Rear Safety Belt Comfort Guides......................1-25
Rear Seat Outside Passenger Positions.............1-22
Rear Seat Passengers, Safety Belts..................1-22
Rear Window Defogger............................3-20, 3-25
Rearview Mirror with OnStar
®...........................2-31
Rearview Mirrors.............................................2-31
Reclining Seatbacks.......................................... 1-3
Recommended Fluids and Lubricants.................6-12
Recreational Vehicle Towing.............................4-32
Remote Keyless Entry System............................ 2-4
Remote Keyless Entry System Operation............. 2-5
Remote Trunk Release....................................2-13
Removing the Flat Tire and Installing the
Spare Tire..................................................5-79
Removing the Spare Tire and Tools...................5-76
Removing the Wheel Center Caps....................5-78
Removing the Wheel Covers............................5-78
Replacement Bulbs.........................................5-55
Replacing Brake System Parts..........................5-41
Replacing Restraint System Parts After
a Crash.....................................................1-59
Reporting Safety Defects
Canadian Government..................................7-10
General Motors...........................................7-11
United States Government............................7-10
Restraint System Check
Checking Your Restraint Systems...................1-58
10

Top Strap Anchor Location...............................1-39
Torque Lock...................................................2-28
Total Weight on Your Vehicle’s Tires..................4-42
Towing
Recreational Vehicle.....................................4-32
Towing a Trailer..........................................4-39
Your Vehicle...............................................4-31
Traction
Enhanced Traction System (ETS).................... 4-9
Enhanced Traction System (ETS)
Warning Light..........................................3-34
Low Light...................................................3-34
Trailer Brakes.................................................4-42
Transaxle
Fluid, Automatic...........................................5-19
Transaxle Operation, Automatic.........................2-22
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-11
Transportation Options...................................... 7-7
Trip Odometer................................................3-29
Trunk............................................................2-13
Trunk Assist Handle........................................2-14
Trunk Lock....................................................2-13
Turn and Lane-Change Signals.......................... 3-6
Turn Signal/Multifunction Lever........................... 3-5
Turn Signals When Towing a Trailer..................4-44U
Underhood Fuse Block...................................5-100
Understanding Radio Reception........................3-63
Uniform Tire Quality Grading............................5-70
United States – Customer Assistance.................. 7-4
Used Replacement Wheels..............................5-73
Using Cleaner on Fabric..................................5-89
V
Vehicle
Control........................................................ 4-5
Damage Warnings........................................... iv
Loading......................................................4-34
Service Soon Light......................................3-42
Symbols......................................................... iv
Vehicle Data Collection and Event
Data Records............................................... 7-9
Vehicle Identication
Number (VIN).............................................5-96
Service Parts Identication Label...................5-96
Vehicle Storage..............................................5-41
Ventilation Adjustment......................................3-25
Visor Vanity Mirror..........................................2-17
Visors...........................................................2-17
13