2007 GMC ACADIA Owner's Manual

{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.
6. Attach the lug wrench to the jack, and turn
the wrench clockwise to raise the jack head
3 inches (7.6 cm).
7. Place the jack under the vehicle as identied
in Step 3. Raise the vehicle by turning the
lug wrench clockwise in the jack. Raise
the vehicle far enough off the ground so that
there is enough room for the spare tire to
t under the wheel well.
8. Remove all the wheel nuts and take off the
at tire.9. Remove the plastic spare tire heat shield by
pulling the rubber latch. Store the plastic
spare tire heat shield. SeeStoring a Flat or
Spare Tire and Tools on page 472for
more information.
465

{CAUTION:
Rust or dirt on the wheel, or on the parts
to which it is fastened, can make the
wheel nuts become loose after time.
The wheel could come off and cause an
accident. When changing a wheel, remove
any rust or dirt from the places where the
wheel attaches to the vehicle. In an
emergency, a cloth or a paper towel can
be used to do this; but be sure to use a
scraper or wire brush later, if needed,
to get all the rust or dirt off.
{CAUTION:
Never use oil or grease on studs or nuts.
Because the nuts might come loose.
The vehicle’s wheel could fall off, causing
a serious accident.
10. Remove any rust or
dirt from the wheel
bolts, mounting
surfaces, and spare
wheel.
11. Install the compact spare tire.
12. Lower the vehicle by attaching the lug wrench
to the jack and turning the wrench
counterclockwise. Lower the jack completely.
466

{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 497for 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 497
for the wheel nut torque specication.
13. Tighten the wheel
nuts rmly in a
crisscross sequence,
as shown.
Notice:Wheel covers will not t on your
vehicle’s compact spare. If you try to put a
wheel cover on the compact spare, the cover or
the spare could be damaged.
467

Secondary Latch System
Your vehicle has an underbody mounted tire
hoist assembly that has a secondary latch
system. It is designed to stop the compact
spare 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.
SeeStoring a Flat or Spare Tire and Tools
on page 472for instructions on storing the
spare 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 next.
468

To release the spare tire from the secondary latch:
{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 under spare.
1. If the cable is not visible, start this procedure
at Step 3.
2. Turn the lug wrench counterclockwise until
approximately 6 inches (15 cm) of cable is
exposed.
All-Wheel-Drive Vehicle shown
469

3. Attach the lug wrench to the jack and raise
the jack at least 10 turns.
4. Place the jack under the vehicle, ahead of the
rear bumper. Position the center lift point of
the jack under the center of the spare tire.
5. Turn the lug wrench clockwise to raise the
jack until it lifts the secondary latch spring.6. Keep raising the jack until the spare tire stops
moving upward and is held rmly in place.
This lets you know that the secondary
latch has released and the spare tire is
balancing on the jack.
7. Lower the jack by turning the lug wrench
counterclockwise. Keep lowering the jack
until the spare tire slides off the jack.
Front-Wheel-Drive Vehicle shown
470

8. Disconnect the lug wrench from the jack and
carefully remove the jack. Use one hand to
push against the spare tire while rmly pulling
the jack out from under the spare tire with
the other hand.9. Tilt the retainer and slip it through the wheel
opening when the spare tire has been
completely lowered.
10. Turn the lug wrench clockwise to raise the
cable back up if the cable is hanging.
Have the hoist assembly inspected as soon as
you can. You will not be able to store a spare tire
using the hoist assembly until it has been
repaired or replaced.
471

Storing a Flat or Spare Tire
and Tools
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 will not 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.
{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.
To store the spare tire:
1. Lay the compact spare tire near the rear of
the vehicle with the valve stem down.
2. Reinstall the plastic spare tire heat shield on
the compact spare tire.
3. If the vehicle has aluminum wheels, remove
the small center cap by tapping the back of
the cap with the extension of the shaft.
472