2005 BUICK TERRAZA traction control

Rocking Your Vehicle to Get It Out
First, turn your steering wheel left and right. That
will clear the area around your front wheels. If your
vehicle has traction control, you should turn your traction
control system off. SeeTraction Control System
(TCS) on page 4-9. Then shift back and forth between
REVERSE (R) and a forward gear, spinning the
wheels as little as possible. Release the accelerator
pedal while you shift, and press lightly on the accelerator
pedal when the transaxle is in gear. By slowly spinning
your wheels in the forward and reverse directions,
you will cause a rocking motion that may free your
vehicle. If that does not get you out after a few tries,
you may need to be towed out. If you do need to
be towed out, seeTowing Your Vehicle on page 4-37.
Loading Your Vehicle
It is very important to know how much weight your
vehicle can carry. This weight is called the vehicle
capacity weight and includes the weight of all occupants,
cargo, and all nonfactory-installed options. Two labels
on your vehicle show how much weight it may properly
carry, the Tire and Loading Information label and the
Certication/Tire label.
{CAUTION:
Do not load your vehicle any heavier than
the Gross Vehicle Weight Rating (GVWR),
or either the maximum front or rear Gross
Axle Weight Rating (GAWR). If you do, parts
on your vehicle can break, and it can change
the way your vehicle handles. These could
cause you to lose control and crash. Also,
overloading can shorten the life of your
vehicle.
4-32

Buying New Tires
To nd out what kind and size of tires you need, look
at the Certication/Tire label or the Tire and Loading
Information label. SeeLoading Your Vehicle on
page 4-32, for examples of the labels and where they
can be found on your vehicle.
The tires installed on your vehicle when it was new had
a Tire Performance Criteria Specication (TPC Spec)
number on each tire’s sidewall. When you get new
tires, GM recommends that you get tires with that same
TPC Spec number. That way your vehicle will continue
to have tires that are designed to give proper endurance,
handling, speed rating, traction, ride and other things
during normal service on your vehicle. If your tires have
an all-season tread design, the TPC number will be
followed by an “MS” (for mud and snow).
If you ever replace your tires with those not having
a TPC Spec number, make sure they are the same
size, load range, speed rating and construction
type (bias, bias-belted or radial) as your original tires.{CAUTION:
Mixing tires could cause you to lose control
while driving. If you mix tires of different sizes
or types (radial and bias-belted tires), the
vehicle may not handle properly, and you
could have a crash. Using tires of different
sizes may also cause damage to your vehicle.
Be sure to use the same size and type tires on
all wheels. It’s all right to drive with your
compact spare temporarily, it was developed
for use on your vehicle. SeeCompact Spare
Tire on page 5-77.
{CAUTION:
If you use bias-ply tires on your vehicle, the
wheel rim anges could develop cracks after
many miles of driving. A tire and/or wheel
could fail suddenly, causing a crash. Use only
radial-ply tires with the wheels on your vehicle.
5-56

Uniform Tire Quality Grading
Quality grades can be found where applicable on the
tire sidewall between tread shoulder and maximum
section width. For example:
Treadwear 200 Traction AA Temperature A
The following information relates to the system
developed by the United States National Highway
Traffic Safety Administration, which grades tires by
treadwear, traction and temperature performance.
(This applies only to vehicles sold in the United States.)
The grades are molded on the sidewalls of most
passenger car tires. The Uniform Tire Quality Grading
system does not apply to deep tread, winter-type
snow tires, space-saver or temporary use spare tires,
tires with nominal rim diameters of 10 to 12 inches
(25 to 30 cm), or to some limited-production tires.
While the tires available on General Motors passenger
cars and light trucks may vary with respect to these
grades, they must also conform to federal safety
requirements and additional General Motors Tire
Performance Criteria (TPC) standards.
Treadwear
The treadwear grade is a comparative rating based on
the wear rate of the tire when tested under controlled
conditions on a specied government test course.
For example, a tire graded 150 would wear one and
a half (1.5) times as well on the government course as
a tire graded 100. The relative performance of tires
depends upon the actual conditions of their use,
however, and may depart signicantly from the norm
due to variations in driving habits, service practices and
differences in road characteristics and climate.
Traction – AA, A, B, C
The traction grades, from highest to lowest, are AA, A,
B, and C. Those grades represent the tire’s ability
to stop on wet pavement as measured under controlled
conditions on specied government test surfaces of
asphalt and concrete. A tire marked C may have poor
traction performance. Warning: The traction grade
assigned to this tire is based on straight-ahead braking
traction tests, and does not include acceleration,
cornering, hydroplaning, or peak traction characteristics.
5-57

Tire Chains
{CAUTION:
Do not use tire chains. There is not enough
clearance. Tire chains used on a vehicle
without the proper amount of clearance can
cause damage to the brakes, suspension or
other vehicle parts. The area damaged by the
tire chains could cause you to lose control of
your vehicle and you or others may be injured
in a crash.
Use another type of traction device only if its
manufacturer recommends it for use on your
vehicle and tire size combination and road
conditions. Follow that manufacturer’s
instructions. To help avoid damage to your
vehicle, drive slowly, readjust or remove the
device if it is contacting your vehicle, and do
not spin your vehicle’s wheels. If you do nd
traction devices that will t, install them on
the front tires.
Accessory Inator
Your vehicle has an accessory inator. With it, you
can inate things like air mattresses and basketballs,
and you can also use it to bring your tires up to the
proper pressure.
The accessory inator is located in the rear
compartment on the driver’s side. To access the
accessory inator, do the following:
1. Open the liftgate. SeeLiftgate on page 2-22for
more information.
2. Lift the lever to move the third row rear seatback
forward. SeeThird Row Seat on page 1-12for
more information.
3. Remove the cover by pulling the lever out.
This symbol is on the
accessory inator switch.
5-60

J
Jump Starting.................................................5-36
K
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
L
Labelling, Tire Sidewall....................................5-48
Lamps
Battery Run-Down Protection.........................3-19
Cargo........................................................3-19
Dome........................................................3-17
Exterior......................................................3-14
Front Reading.............................................3-19
Interior Control............................................3-17
Rear Reading.............................................3-19
LATCH System
Child Restraints...........................................1-46
Securing a Child Restraint Designed for
the LATCH System...................................1-48
Level Control..................................................4-39
Liftgate..........................................................2-22Light
Airbag Readiness........................................3-34
Anti-Lock Brake System Warning...................3-38
Brake System Warning.................................3-37
Charging System.........................................3-37
Cruise Control.............................................3-43
Highbeam On.............................................3-44
Low Fuel Warning.......................................3-44
Malfunction Indicator....................................3-40
Oil Pressure...............................................3-42
Passenger Airbag Status Indicator..................3-35
Safety Belt Reminder...................................3-33
Security.....................................................3-43
TCS Warning Light......................................3-39
Traction Control System (TCS) Warning..........3-39
Lighting
Delayed.....................................................3-18
Entry.........................................................3-17
Exit...........................................................3-18
Loading Your Vehicle.......................................4-32
Lockout Protection..........................................2-13
Locks
Delayed Locking..........................................2-12
Door..........................................................2-10
Lockout Protection.......................................2-13
Power Door................................................2-11
Programmable Automatic Door Locks.............2-13
7

Towing
Recreational Vehicle.....................................4-37
Towing a Trailer..........................................4-39
Your Vehicle...............................................4-37
Traction
Control System (TCS).................................... 4-9
Control System Warning Light.......................3-39
StabiliTrak
®System.....................................4-10
Transaxle
Fluid, Automatic...........................................5-19
Transaxle Operation, Automatic.........................2-33
Trip Odometer................................................3-33
Turn and Lane-Change Signals.......................... 3-7
Turn Signal/Multifunction Lever........................... 3-7
U
Ultrasonic Rear Parking Assist (URPA)...............3-20
Understanding Radio Reception.......................3-113
Uniform Tire Quality Grading............................5-57
V
Vehicle
Control........................................................ 4-6
Damage Warnings........................................... iv
Loading......................................................4-32
Symbols......................................................... iv
Vehicle Data Collection and Event Data
Recorders.................................................... 7-9
Vehicle Identication
Number (VIN).............................................5-85
Service Parts Identication Label...................5-86
Vehicle Personalization
DIC ...........................................................3-68
Memory Seat..............................................2-54
Ventilation Adjustment......................................3-28
Visors...........................................................2-26
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