Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Rear Seats
............................................... 1-6
Safety Belts
.............................................. 1-6
Child Restraints
.......................................1-27
Airbag System
.........................................1-49
Restraint System Check
............................1-58
Features and Controls..................................... 2-1
Keys
........................................................ 2-2
Doors and Locks
......................................2-10
Windows
.................................................2-14
Theft-Deterrent Systems
............................2-16
Starting and Operating Your Vehicle
...........2-17
Mirrors
....................................................2-29
OnStar
®System
......................................2-31
Storage Areas
.........................................2-33
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-18
Warning Lights, Gages, and Indicators
........3-28
Audio System(s)
.......................................3-44Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
........ 4-2
Towing
...................................................4-36
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-5
Checking Things Under the Hood
...............5-10
Headlamp Aiming
.....................................5-45
Bulb Replacement
....................................5-47
Windshield Wiper Blade Replacement
.........5-52
Tires
......................................................5-53
Appearance Care
.....................................5-82
Vehicle Identi cation
.................................5-90
Electrical System
......................................5-90
Capacities and Speci cations
.....................5-96
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance and Information.............. 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-10
Index.................................................................1
2005 Buick Century Owner ManualM
Front Seats......................................................1-2
Manual Seats................................................1-2
Power Seat...................................................1-3
Reclining Seatbacks........................................1-4
Head Restraints.............................................1-5
Rear Seats.......................................................1-6
Split Folding Rear Seat...................................1-6
Safety Belts.....................................................1-6
Safety Belts: They Are for Everyone.................1-6
Questions and Answers About Safety Belts......1-11
How to Wear Safety Belts Properly.................1-12
Driver Position..............................................1-12
Shoulder Belt Height Adjustment.....................1-18
Safety Belt Use During Pregnancy..................1-19
Right Front Passenger Position.......................1-19
Center Passenger Position.............................1-20
Rear Seat Passengers..................................1-21
Rear Safety Belt Comfort Guides for
Children and Small Adults..........................1-24
Safety Belt Extender.....................................1-26
Child Restraints.............................................1-27
Older Children..............................................1-27
Infants and Young Children............................1-30
Child Restraint Systems.................................1-33Where to Put the Restraint.............................1-36
Top Strap....................................................1-37
Top Strap Anchor Location.............................1-39
Lower Anchorages and Top Tethers for
Children (LATCH System)...........................1-40
Securing a Child Restraint Designed for
the LATCH System....................................1-42
Securing a Child Restraint in a
Rear Outside Seat Position.........................1-42
Securing a Child Restraint in a Center
Rear Seat Position....................................1-44
Securing a Child Restraint in the Right
Front Seat Position....................................1-46
Airbag System...............................................1-49
Where Are the Airbags?................................1-52
When Should an Airbag In ate?.....................1-54
What Makes an Airbag In ate?.......................1-55
How Does an Airbag Restrain?.......................1-55
What Will You See After an
Airbag In ates?.........................................1-56
Servicing Your Airbag-Equipped Vehicle...........1-58
Restraint System Check..................................1-58
Checking Your Restraint Systems...................1-58
Replacing Restraint System Parts
After a Crash............................................1-59
Section 1 Seats and Restraint Systems
1-1
How to Wear Safety Belts Properly
This part is only for people of adult size.
Be aware that there are special things to know about
safety belts and children. And there are different
rules for smaller children and babies. If a child will be
riding in your vehicle, seeOlder Children on page 1-27
orInfants and Young Children on page 1-30. Follow
those rules for everyone’s protection.
First, you will want to know which restraint systems your
vehicle has.
We will start with the driver position.
Driver Position
This part describes the driver’s restraint system.
Lap-Shoulder Belt
The driver has a lap-shoulder belt. Here is how to
wear it properly.
1. Close and lock the door.
2. Adjust the seat so you can sit up straight.
To see how, see “Seats” in the Index.3. Pick up the latch plate and pull the belt across you.
Do not let it get twisted.
The shoulder belt may lock if you pull the belt
across you very quickly. If this happens, let the belt
go back slightly to unlock it. Then pull the belt
across you more slowly.
1-12
Rear Safety Belt Comfort Guides for
Children and Small Adults
Rear shoulder belt comfort guides provide added safety
belt comfort for older children who have outgrown
booster seats and for small adults. When installed on a
shoulder belt, the comfort guide better positions the
belt away from the neck and head.
There is one guide for each outside passenger position
in the rear seat. To provide added safety belt comfort
for children who have outgrown child restraints and
booster seats and for smaller adults, the comfort guides
may be installed on the shoulder belts. Here is how
to install a comfort guide and use the safety belt:
1. Pull the elastic cord out from between the edge of
the seatback and the interior body to remove the
guide from its storage clip.
1-24
4. Buckle, position and release the safety belt as
described inRear Seat Passengers on page 1-21.
Make sure that the shoulder belt crosses
the shoulder.
To remove and store the comfort guides, squeeze the
belt edges together so that you can take them out of the
guides. Pull the guide upward to expose its storage
clip, and then slide the guide onto the clip. Turn the
guide and clip inward and in between the seatback and
the interior body, leaving only the loop of the elastic
cord exposed.
Safety Belt Extender
If the vehicle’s safety belt will fasten around you,
you should use it.
But if a safety belt is not long enough, your dealer will
order you an extender. It is free. When you go in to
order it, take the heaviest coat you will wear, so the
extender will be long enough for you. To help avoid
personal injury, do not let someone else use it, and use
it only for the seat it is made to t. The extender has
been designed for adults. Never use it for securing child
seats. To wear it, just attach it to the regular safety
belt. For more information see the instruction sheet that
comes with the extender.
1-26
Child Restraints
Older Children
Older children who have outgrown booster seats should
wear the vehicle’s safety belts.
If you have the choice, a child should sit next to a
window so the child can wear a lap-shoulder belt and
get the additional restraint a shoulder belt can provide.
Q:What is the proper way to wear safety belts?
A:If possible, an older child should wear a
lap-shoulder belt and get the additional restraint
a shoulder belt can provide. The shoulder belt
should not cross the face or neck. The lap
belt should t snugly below the hips, just touching
the top of the thighs. It should never be worn
over the abdomen, which could cause severe or
even fatal internal injuries in a crash.
Accident statistics show that children are safer if they
are restrained in the rear seat.
In a crash, children who are not buckled up can strike
other people who are buckled up, or can be thrown
out of the vehicle. Older children need to use safety
belts properly.
1-27
{CAUTION:
Never do this.
Here two children are wearing the same belt.
The belt can not properly spread the impact
forces. In a crash, the two children can be
crushed together and seriously injured. A belt
must be used by only one person at a time.
Q:What if a child is wearing a lap-shoulder belt,
but the child is so small that the shoulder belt
is very close to the child’s face or neck?
A:Move the child toward the center of the vehicle,
but be sure that the shoulder belt still is on the
child’s shoulder, so that in a crash the child’s
upper body would have the restraint that belts
provide. If the child is sitting in a rear seat outside
position, seeRear Safety Belt Comfort Guides
for Children and Small Adults on page 1-24.Ifthe
child is so small that the shoulder belt is still
very close to the child’s face or neck, you might
want to place the child in the center seat position,
the one that has only a lap belt.
1-28
{CAUTION:
Never do this.
Here a child is sitting in a seat that has a
lap-shoulder belt, but the shoulder part is
behind the child. If the child wears the belt in
this way, in a crash the child might slide under
the belt. The belt’s force would then be applied
right on the child’s abdomen. That could cause
serious or fatal injuries.
Wherever the child sits, the lap portion of the belt
should be worn low and snug on the hips, just touching
the child’s thighs. This applies belt force to the child’s
pelvic bones in a crash.
1-29