2008 GMC ACADIA Owner's Manual

If a Tire Goes Flat
It is unusual for a tire to blowout while you are driving,
especially if you maintain your vehicle’s tires properly.
If air goes out of a tire, it is much more likely to leak out
slowly. But if you should ever have a blowout, here
are a few tips about what to expect and what to do:
If a front tire fails, the at tire creates a drag that pulls
the vehicle toward that side. Take your foot off the
accelerator pedal and grip the steering wheel rmly.
Steer to maintain lane position, and then gently brake to
a stop well out of the traffic lane.
A rear blowout, particularly on a curve, acts much like a
skid and may require the same correction you would
use in a skid. In any rear blowout remove your foot from
the accelerator pedal. Get the vehicle under control
by steering the way you want the vehicle to go. It may
be very bumpy and noisy, but you can still steer. Gently
brake to a stop, well off the road if possible.{CAUTION:
Lifting a vehicle and getting under it to do
maintenance or repairs is dangerous without
the appropriate safety equipment and training.
The jack provided with your vehicle is
designed only for changing a at tire. If it is
used for anything else, you or others could be
badly injured or killed if the vehicle slips off
the jack. Use the jack provided with your
vehicle only for changing a at tire.
If a tire goes at, the next part shows how to use the
jacking equipment to change a at tire safely.
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Changing a Flat Tire
If a tire goes at, avoid further tire and wheel damage
by driving slowly to a level place. Turn on your vehicle’s
hazard warning ashers. SeeHazard Warning Flashers
on page 3-6for more information.{CAUTION:
Changing a tire can be dangerous. The vehicle
can slip off the jack and roll over or fall on you
or other people. You and they could be badly
injured or even killed. Find a level place to
change your tire. To help prevent the vehicle
from moving:
1. Set the parking brake rmly.
2. Put the shift lever in PARK (P).
3. Turn off the engine and do not restart
while the vehicle is raised.
4. Do not allow passengers to remain in the
vehicle.
To be even more certain the vehicle will not
move, you should put blocks at the front and
rear of the tire farthest away from the one
being changed. That would be the tire, on the
other side, at the opposite end of the vehicle.
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When your vehicle has a at tire, use the following
example as a guide to assist you in the placement of
wheel blocks.
The following information tells you how to use the jack
and change a tire.
Removing the Spare Tire and Tools
The tools needed to remove the spare tire are located
in the storage compartment on the driver side, at
the rear of the vehicle.
1. Open the jack storage compartment by squeezing
down on the latch tab and pulling the cover off.A. Tool Bag
B. Wing Bolt
C. Jack
2. Remove the wing bolt (B) by turning it
counterclockwise
3. Push the jack (C) up out of the holding bracket.
4. Turn the jack on its side, with the bottom facing
toward you.
5. Pull the jack straight out, bottom rst.
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The tools you will be using include the jack (A) and lug
wrench (B).
Removing the Spare Tire
The compact spare tire is located under the vehicle, in
front of the rear bumper. SeeCompact Spare Tire on
page 5-88for more information about the compact spare.A. Rear Convenience
Center
B. Lug wrench
C. Storage
Compartment
Cap HoleD. Hoist Shaft
E. Compact
Spare Tire
F. Retainer
G. Hoist Shaft
Assembly
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.
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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 5-84.To continue changing the at tire, seeRemoving the
Flat Tire and Installing the Spare Tire (Outlook) on
page 5-76.
If the spare tire will not lower, the secondary latch could
be engaged.
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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 5-81.
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 did lower to the ground, continue
with Step 5 under “Removing the Spare Tire” listed
previously.
5. If you still cannot lower the spare tire to the ground,
seeSecondary Latch System on page 5-81.Removing the Flat Tire and
Installing the Spare Tire
1. Do a safety check before proceeding. SeeChanging
a Flat Tire on page 5-72for 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.
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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.4. To identify the appropriate jacking location, nd the
triangle (A) about 12 inches (30.5 cm) from the front
tire or (B) 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.
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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.
{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 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 5-84for more information.
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