Page 1 of 454

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Rear Seats
............................................... 1-6
Safety Belts
.............................................1-14
Child Restraints
.......................................1-34
Airbag System
.........................................1-57
Restraint System Check
............................1-72
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
......................................2-11
Windows
.................................................2-26
Theft-Deterrent Systems
............................2-28
Starting and Operating Your Vehicle
...........2-32
Mirrors
....................................................2-44
OnStar
®System
......................................2-45
Universal Home Remote System
................2-47
Storage Areas
.........................................2-51
Vehicle Personalization
.............................2-57
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-26
Warning Lights, Gages, and Indicators
........3-34
Driver Information Center (DIC)
..................3-49
Audio System(s)
.......................................3-80Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-37
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-4
Checking Things Under the Hood
...............5-10
All-Wheel Drive
........................................5-47
Bulb Replacement
....................................5-49
Windshield Wiper Blade Replacement
.........5-53
Tires
......................................................5-54
Appearance Care
.....................................5-87
Vehicle Identi cation
.................................5-95
Electrical System
......................................5-95
Capacities and Speci cations
...................5-102
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance and Information.............. 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-14
Index................................................................ 1
2006 Buick Terraza Owner ManualM
Page 25 of 454

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 1-34
orInfants and Young Children on page 1-37. 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
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.
1-19
Page 34 of 454

Safety Belt Use During Pregnancy
Safety belts work for everyone, including pregnant
women. Like all occupants, they are more likely to be
seriously injured if they do not wear safety belts.
A pregnant woman should wear a lap-shoulder belt, and
the lap portion should be worn as low as possible,
below the rounding, throughout the pregnancy.
The best way to protect the fetus is to protect the
mother. When a safety belt is worn properly, it is more
likely that the fetus will not be hurt in a crash. For
pregnant women, as for anyone, the key to making
safety belts effective is wearing them properly.
Right Front Passenger Position
To learn how to wear the right front passenger’s safety
belt properly, seeDriver Position on page 1-19.
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 shoulder 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.
Rear Seat Passengers
It is very important for rear seat passengers to buckle
up! Accident statistics show that unbelted people in
the rear seat are hurt more often in crashes than those
who are wearing safety belts.
Rear passengers who are not safety belted can be
thrown out of the vehicle in a crash. And they can strike
others in the vehicle who are wearing safety belts.
1-28
Page 58 of 454
4. Pull the rest of the shoulder belt all the way out of
the retractor to set the lock.5. To tighten the belt, push down on the child restraint,
pull the shoulder portion of the belt to tighten the
lap portion of the belt and feed the shoulder
belt back into the retractor. If you are using a
forward-facing child restraint, you may nd it helpful
to use your knee to push down on the child
restraint as you tighten the belt.
1-52
Page 62 of 454
5. Pull the rest of the shoulder belt all the way out of
the retractor to set the lock.6. To tighten the belt, push down on the child restraint,
pull the shoulder portion of the belt to tighten the
lap portion of the belt and feed the shoulder
belt back into the retractor. If you are using a
forward-facing child restraint, you may nd it helpful
to use your knee to push down on the child
restraint as you tighten the belt. You should not be
able to pull more of the belt from the retractor
once the lock has been set.
1-56
Page 83 of 454
Keys
{CAUTION:
Leaving children in a vehicle with the ignition
key is dangerous for many reasons. They
could operate the power windows or other
controls or even make the vehicle move. The
children or others could be badly injured or
even killed. Do not leave the keys in a vehicle
with children.
This vehicle has one key for the ignition and the driver’s
door lock.
Your vehicle has the PASS-Key
®III vehicle theft
system. The key has a transponder in the key head that
matches a decoder in the vehicle’s steering column.
If a replacement key or any additional key is needed,
you must purchase this key from your dealer. The
key will have PK3 stamped on it. Keep the bar code tag
that came with the original keys. Give this tag to your
dealer if you need a new key made.
2-3
Page 91 of 454

Doors and Locks
Door Locks
{CAUTION:
Unlocked doors can be dangerous.
Passengers — especially children — can
easily open the doors and fall out of a
moving vehicle. When a door is locked, the
handle will not open it. You increase the
chance of being thrown out of the vehicle
in a crash if the doors are not locked. So,
wear safety belts properly and lock the
doors whenever you drive.
Young children who get into unlocked
vehicles may be unable to get out. A child
can be overcome by extreme heat and can
suffer permanent injuries or even death
from heat stroke. Always lock your vehicle
whenever you leave it.
Outsiders can easily enter through an
unlocked door when you slow down or
stop your vehicle. Locking your doors can
help prevent this from happening.There are several ways to lock and unlock your vehicle.
From the outside, use your key or the remote keyless
entry transmitter.
To unlock the driver’s door from the outside with the
key, insert the key and turn it toward the front of
the vehicle. To lock the driver’s door from the outside
with your key, insert the key and turn it toward the rear
of the vehicle.
If your vehicle has power door locks, you may be able
to unlock all of the doors and the liftgate when you insert
the key, turn it toward the front of the vehicle, and
hold it there for one second. You may be able to lock all
of the doors when you insert the key and turn it toward
the rear of the vehicle.
2-11
Page 96 of 454
Lock either sliding door from inside the vehicle by
moving the manual lever down. Unlock it by moving the
lever up.
With the power door locks, the sliding door lock has a
delay feature. SeeDelayed Locking on page 2-13
andDIC Vehicle Personalization (Uplevel Only) on
page 3-72.
Sliding Door Security Lock
Your vehicle is equipped with sliding door security locks
that helps prevent young children or other passengers
from opening the sliding door(s) using the inside
door handle. To use one of these locks, do the following:
1. Open the sliding door.
2. On the inside of the
sliding door(s), on the
front edge of the
door will be a lock.
Push the lever
up to engage the lock.
3. Close the door.
4. Repeat Steps 1 through 3 for the other door.
2-16