BUICK TERRAZA 2006 Owner's Manual

Removing the Flat Tire and
Installing the Spare Tire
If the wheel has a center cap, use the handle of the
folding wrench to pry it off. Then, with the other end of
the folding wrench, loosen the nuts.
If your vehicle has the plastic bolt-on wheel covers,
loosen the bolts completely using the folding wrench,
and remove the wheel cover.Once the center cap and/or wheel cover are removed,
use the following steps to remove the at tire and install
the spare tire.
1. Loosen the wheel nuts
using the folding
wrench, but do not
remove them.
Turn the handle
counterclockwise about
180 degrees, then ip
the handle back to the
starting position. This
avoids taking the
wrench off the lug nut
for each turn.
Notice:If your vehicle has wheel locks and you use
an impact wrench to remove the wheel nuts, you
could damage the lock nut or wheel lock key. Do not
use an impact wrench to remove the wheel nuts if
your vehicle has wheel locks.
5-75

Notice:If you use a jack to raise the vehicle without
positioning it correctly, you could damage your
vehicle. When raising your vehicle on a jack, avoid
contact with the rear axle control arms.
Notice:If you position the jack under the rocker
molding and attempt to raise the vehicle, you could
break the molding and/or cause other damage to your
vehicle. Always position the jack so that when the
jack head is raised, it will t rmly in the notch
located inboard from the rocker molding.
A. Front Location
B. Rear Location2. Near each wheel, there is a notch (A and B) in the
vehicle’s frame, inboard of the rocker molding.
Position the jack and raise the jack head until it ts
rmly into the notch in the vehicle’s frame nearest
the at tire.
Do not raise the vehicle yet.
3. Put the compact spare tire near you.
{CAUTION:
Getting under a vehicle when it is jacked up is
dangerous. If the vehicle slips off the jack you
could be badly injured or killed. Never get under
a vehicle when it is supported only by a jack.
5-76

{CAUTION:
Raising your vehicle with the jack improperly
positioned can damage the vehicle and even
make the vehicle fall. To help avoid personal
injury and vehicle damage, be sure to t the
jack lift head into the proper location before
raising the vehicle.
4. Attach the folding wrench (A) to the jack (B), and
turn the wrench clockwise to raise the jack head
approximately 3 inches (7.6 cm).
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5. Raise the vehicle by turning the folding wrench
clockwise in the jack. Raise the vehicle far enough
off the ground so there is enough room for the
compact spare tire to t under the wheel well.
6. Remove all the wheel nuts and take off the at tire.
{CAUTION:
Rust or dirt on the wheel, or on the parts to
which it is fastened, can make the wheel nuts
become loose after a time. The wheel could
come off and cause an accident. When you
change a wheel, remove any rust or dirt from
the places where the wheel attaches to the
vehicle. In an emergency, you can use a cloth
or a paper towel to do this; but be sure to use
a scraper or wire brush later, if needed, to get
all the rust or dirt off.
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7. Remove any rust or dirt
from the wheel bolts,
mounting surfaces
and spare wheel.
{CAUTION:
Never use oil or grease on studs or nuts. If
you do, the nuts might come loose. Your wheel
could fall off, causing a serious accident.8. Install the compact
spare tire and put the
wheel nuts back
on with the rounded
end of the nuts toward
the wheel.
Tighten each nut by hand until the wheel is held
against the hub.
5-79

9. Lower the vehicle by attaching the folding wheel
wrench to the jack and turning the wrench
counterclockwise. Lower the jack completely.
{CAUTION:
Incorrect wheel nuts or improperly tightened
wheel nuts can cause the wheel to come loose
and even come off. This could lead to an
accident. Be sure to use the correct wheel
nuts. If you have to replace them, be sure to
get new GM original equipment wheel nuts.
Stop somewhere as soon as you can and have
the nuts tightened with a torque wrench to the
proper torque specication. SeeCapacities
and Specifications on page 5-102for wheel nut
torque specication.
Notice:Improperly tightened wheel nuts can lead
to brake pulsation and rotor damage. To avoid
expensive brake repairs, evenly tighten the wheel
nuts in the proper sequence and to the proper
torque specication. SeeCapacities and
Specifications on page 5-102for the wheel nut
torque specication.
5-80

10. Tighten the wheel nuts
rmly in a crisscross
sequence, as shown.
Notice:Wheel covers will not t on your compact
spare. If you try to put a wheel cover on the compact
spare, you could damage the cover or the spare.
11. Do not try to put a wheel cover on the compact
spare tire. It will not t. Store the wheel cover
securely in the rear of the vehicle until you have the
at tire repaired or replaced.
Secondary Latch System
Your vehicle may have an underbody-mounted tire hoist
assembly equipped with a secondary latch system. It
is designed to stop a tire from suddenly falling off your
vehicle if the cable holding the spare tire is damaged.
For the secondary latch to work, the tire must be stowed
with the valve stem pointing down.Your vehicle uses the underbody tire hoist assembly to
store either the compact spare or a at road tire.
SeeStoring a Flat or Spare Tire and Tools on page 5-83
for instructions on storing the spare or at tire correctly.
{CAUTION:
Before beginning this procedure read all the
instructions. Failure to read and follow the
instructions could damage the hoist assembly
and you and others could get hurt. Read and
follow the instructions listed below.
{CAUTION:
Someone standing too close during the
procedure could be injured by the jack. If the
spare tire does not slide off the jack
completely, make sure no one is behind you or
on either side of you as you pull the jack out
from the spare.
5-81

To release the spare tire from the secondary latch, do
the following:
1. Place the jack under the vehicle, ahead of the rear
bumper. Position the center lift point of the jack
under the center of the compact spare tire.
2. Turn the folding wrench clockwise to raise the jack
until it lifts the secondary latch device under the
wheel plate.
3. Keep raising the jack until the compact spare tire
stops moving upward and is held rmly in place.
This lets you know that the secondary latch
has released.4. Lower the jack by turning the folding wrench
counterclockwise. Keep lowering the jack until
the compact spare tire is resting on the folding
wrench.
5. Grasp the compact spare tire with both hands and
pull it out from under the vehicle.
6. Reach under the vehicle and remove the folding
wrench and jack.
Have the hoist assembly inspected as soon as you can.
You will not be able to store a spare or at tire using
the hoist assembly until it has been repaired or replaced.
5-82

Storing a Flat or Spare Tire and
Tools
{CAUTION:
Storing a jack, a tire, or other equipment in the
passenger compartment of the vehicle could
cause injury. In a sudden stop or collision,
loose equipment could strike someone. Store
all these in the proper place.
Storing the Spare Tire
{CAUTION:
The underbody-mounted spare tire needs to be
stored with the valve stem pointing down. If
the spare tire is stored with the valve stem
pointing upwards, its secondary latch won’t
CAUTION: (Continued)
CAUTION: (Continued)
work properly and the spare tire could loosen
and suddenly fall from your vehicle. If this
happened when your vehicle was being driven,
the tire might contact a person or another
vehicle, causing injury and, of course, damage
to itself as well. Be sure the
underbody-mounted spare tire is stored with
its valve stem pointing down.
To store the spare tire, do the following:
1. Lay the tire near the rear of the vehicle with the
valve stem down.
2. Remove the small center cap by tapping the back
of the cap with the extension of the shaft, if the
vehicle has aluminum wheels.
3. Slide the cable retainer through the center of the
wheel and start to raise the tire.
Make sure the retainer is fully seated across the
underside of the wheel.
4. When the tire is almost in the stored position, turn
the tire so the valve is towards the rear of the
vehicle.
This will help when you check and maintain tire
pressure in the spare.
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5. Raise the tire fully against the underside of the
vehicle. Continue turning the folding wrench until
you feel more than two clicks. This indicates that the
compact spare tire is secure and the cable is
tight. The spare tire hoist cannot be overtightened.
6. Make sure the tire is stored securely. Push, pull (A),
and then try to turn (B) the tire. If the tire moves,
use the folding wrench to tighten the cable.Storing the Flat Tire on a
Front-Wheel-Drive Vehicle
The at tire is stored the same as the spare tire for
front-wheel-drive vehicles. Refer to “Storing the Spare
Tire” listed previously.
Storing the Flat Tire on an
All-Wheel-Drive Vehicle
1. Remove the tire storage bag and cable package
from the jack storage area.
2. Remove the small center cap by tapping the back
of the cap with the extension of the shaft, if the
vehicle has aluminum wheels.
3. Put the at tire in the tire storage bag and place it
in the rear storage area with the valve stem
pointing toward the front of the vehicle.
5-84