
Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Safety Belts
.............................................. 1-7
Child Restraints
.......................................1-28
Airbag System
.........................................1-47
Restraint System Check
............................1-56
Features and Controls..................................... 2-1
Keys
........................................................ 2-2
Doors and Locks
....................................... 2-9
Windows
.................................................2-17
Theft-Deterrent Systems
............................2-19
Starting and Operating Your Vehicle
...........2-23
Mirrors
....................................................2-36
OnStar
®System
......................................2-39
HomeLink®Transmitter
.............................2-40
Storage Areas
.........................................2-44
Sunroof
..................................................2-45
Vehicle Personalization
.............................2-46
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-25
Warning Lights, Gages, and Indicators
........3-33
Systems Monitor
......................................3-58
Driver Information Center (DIC)
..................3-59Secondary Information Center (SIC)
............3-70
Audio System(s)
.......................................3-72
Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-34
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-5
Checking Things Under the Hood
...............5-10
Bulb Replacement
....................................5-67
Windshield Wiper Blade Replacement
.........5-73
Tires
......................................................5-74
Appearance Care
...................................5-101
Vehicle Identi cation
...............................5-110
Electrical System
....................................5-111
Capacities and Speci cations
...................5-121
Normal Maintenance Replacement Parts
....5-122
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 Pontiac Bonneville Owner ManualM

Front Seats......................................................1-2
Manual Seats................................................1-2
Power Seats..................................................1-2
Manual Lumbar..............................................1-3
Power Lumbar...............................................1-3
Heated Seats.................................................1-4
Reclining Seatbacks........................................1-4
Power Reclining Seatback...............................1-5
Head Restraints.............................................1-7
Safety Belts.....................................................1-7
Safety Belts: They Are for Everyone.................1-7
Questions and Answers About Safety Belts......1-12
How to Wear Safety Belts Properly.................1-12
Driver Position..............................................1-13
Safety Belt Use During Pregnancy..................1-19
Right Front Passenger Position.......................1-20
Center Front Passenger Position.....................1-20
Rear Seat Passengers..................................1-21
Rear Safety Belt Comfort Guides for
Children and Small Adults..........................1-25
Safety Belt Extender.....................................1-27
Child Restraints.............................................1-28
Older Children..............................................1-28
Infants and Young Children............................1-30
Child Restraint Systems.................................1-34Where to Put the Restraint.............................1-37
Top Strap....................................................1-38
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 Seat
Position...................................................1-42
Securing a Child Restraint in the Center
Front Seat Position....................................1-44
Securing a Child Restraint in the Right
Front Seat Position....................................1-45
Airbag System...............................................1-47
Where Are the Airbags?................................1-50
When Should an Airbag In ate?.....................1-52
What Makes an Airbag In ate?.......................1-53
How Does an Airbag Restrain?.......................1-53
What Will You See After an Airbag In ates?.....1-54
Servicing Your Airbag-Equipped Vehicle...........1-56
Restraint System Check..................................1-56
Checking Your Restraint Systems...................1-56
Replacing Restraint System Parts
After a Crash............................................1-57
Section 1 Seats and Restraint Systems
1-1

Questions and Answers About
Safety Belts
Q:Will I be trapped in the vehicle after an accident
if I am wearing a safety belt?
A:Youcouldbe — whether you are wearing a safety
belt or not. But you can unbuckle a safety belt,
even if you are upside down. And your chance of
being conscious during and after an accident,
so youcanunbuckle and get out, ismuchgreater if
you are belted.
Q:If my vehicle has airbags, why should I have to
wear safety belts?
A:Airbags are in many vehicles today and will be in
most of them in the future. But they are
supplemental systems only; so they workwith
safety belts — not instead of them. Every airbag
system ever offered for sale has required the use of
safety belts. Even if you are in a vehicle that has
airbags, you still have to buckle up to get the most
protection. That is true not only in frontal collisions,
but especially in side and other collisions.
Q:If I am a good driver, and I never drive far from
home, why should I wear safety belts?
A:You may be an excellent driver, but if you are in an
accident — even one that is not your fault — you
and your passengers can be hurt. Being a good
driver does not protect you from things beyond your
control, such as bad drivers.
Most accidents occur within 25 miles (40 km) of
home. And the greatest number of serious injuries
and deaths occur at speeds of less than 40 mph
(65 km/h).
Safety belts are for everyone.
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 1-28
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.
1-12

Right Front Passenger Position
To learn how to wear the right front passenger’s safety
belt properly, seeDriver Position on page 1-13.
The right front passenger’s safety belt works the same
way as the driver’s safety belt — except for one
thing. If you ever pull the lap portion of the belt out all
the way, you will engage the child restraint locking
feature. If this happens, just let the belt go back all the
way and start again.
If your vehicle has a center passenger position, be sure
to use the correct buckle when buckling your
lap-shoulder belt. If you nd that the latch plate will not
go fully into the buckle, see if you are using the
buckle for the center passenger position.
Center Front Passenger Position
Lap Belt
If your vehicle has a front bench seat, someone can sit
in the center position.
When you sit in the center front seating position, you
have a lap safety belt, which has no retractor. To make
the belt longer, tilt the latch plate and pull it along
the belt.
1-20

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. Remove the guide from its storage pocket on the
side of the seatback.
1-25

Child Restraints
Older Children
Older children who have outgrown booster seats should
wear the vehicle’s safety belts.
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.
1-28

{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:If the child is sitting in a seat next to a window,
move the child toward the center of the vehicle.
If the child is sitting in the center rear seat
passenger position, move the child toward the
safety belt buckle. In either case, 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.
1-29

{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.
Infants and Young Children
Everyone in a vehicle needs protection! This includes
infants and all other children. Neither the distance
traveled nor the age and size of the traveler changes
the need, for everyone, to use safety restraints. In fact,
the law in every state in the United States and in
every Canadian province says children up to some age
must be restrained while in a vehicle.
1-30