GMC ACADIA 2007 Owner's Manual

1. Open the storage compartment door of the
convenience center that is nearest the
liftgate.
2. Move the carpet cutout that is located through
the hole of the storage compartment.
3. Attach the lug wrench into the hoist shaft.
4. Turn the lug wrench counterclockwise to lower
the spare tire to the ground. Continue turning
the wrench until the spare tire can be
pulled out from under the vehicle.
5. Tilt the retainer and slip it through the wheel
opening to remove the spare tire from the
cable.
6. Turn the wrench clockwise to raise the cable
back up after removing the spare tire.
Do not store a full-size or a at road tire under
the vehicle. SeeStoring a Flat or Spare Tire
and Tools on page 472.
461

To continue changing the at tire, seeRemoving
the Flat Tire and Installing the Spare Tire on
page 463.
If the spare tire will not lower, the secondary latch
could be engaged.Do the following to check the cable:
1. Check under the vehicle to see if the cable is
visible.
2. If it is not visible, seeSecondary Latch
System on page 468.
If it is visible, rst try to tighten the cable by
turning the lug wrench clockwise until you hear
two clicks or feel it skip twice. You cannot
over-tighten the cable.
3. Loosen the cable by turning the wrench
counterclockwise three or four turns.
4. If the spare tire has not lowered, tighten the
cable all the way and then loosen it at least
two times.
If the spare tire did lower to the ground,
continue with Step 5 under “Removing the
Spare Tire (Vehicles with the Rear
Convenience Center)” listed previously.
5. If you still cannot lower the spare tire to the
ground, seeSecondary Latch System on
page 468.
462

Removing the Flat Tire and
Installing the Spare Tire
1. It is recommended that you do a safety check
before preceding. SeeChanging a Flat Tire
on page 458for more information.
2. If the vehicle has a wheel cover, loosen the
plastic nut caps with the wheel wrench.
They will not come off. Then, using the at
end of the wheel wrench, pry along the edge
of the cover until it comes off. Be careful;
the edges may be sharp. Do not try to remove
the cover with your bare hands.
Store the wheel cover securely in the rear of
the vehicle until you have the at tire
repaired or replaced.
If your vehicle has aluminum wheels, remove
the wheel nut caps using the wheel wrench.3. Loosen the wheel nuts — but do not
remove them — using the lug wrench.
For wheels with a wheel lock key, use the
wheel lock key between the lock nut and
lug wrench. The key is supplied in the front
passenger door pocket.
Notice:If your vehicle has wheel locks and an
impact wrench is used to remove the wheel
nuts, the lock nut or wheel lock key could be
damaged. Do not use an impact wrench to
remove the wheel nuts if your vehicle has
wheel locks.
463

4. To identify the appropriate jacking location,
nd the triangle about 12 inches (30.5 cm)
from the front tire or about 10.5 inches
(27 cm) from the rear tire.
The triangle is located near each wheel on the
vehicle’s exterior.Notice:If a jack is used to raise the vehicle
without positioning it correctly, your vehicle
could be damaged. When raising your vehicle
on a jack, avoid contact with the rear axle
control arms.
5. Do not raise the vehicle yet. 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.
464

{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