lock GMC ACADIA 2010 Owner's Manual

10-48 Vehicle Care
The TPMS sensors can also be
matched to each tire/wheel position
by increasing or decreasing the
tire's air pressure. If increasing the
tire's air pressure, do not exceed
the maximum inflation pressure
indicated on the tire's sidewall.
To decrease air-pressure out of a
tire you can use the pointed end of
the valve cap, a pencil-style air
pressure gage, or a key.
You have two minutes to match the
first tire/wheel position, and
five minutes overall to match all four
tire/wheel positions. If it takes longer
than two minutes, to match the first
tire and wheel, or more than
five minutes to match all four tire
and wheel positions the matching
process stops and you need to
start over.
The TPMS sensor matching process
is outlined below:
1. Set the parking brake.
2. Turn the ignition switch to ON/RUN with the engine off. 3. Press the Remote Keyless Entry
(RKE) transmitter's LOCK and
UNLOCK buttons at the same
time for approximately
five seconds. The horn sounds
twice to signal the receiver is in
relearn mode and TIRE
LEARNING ACTIVE message
displays on the DIC screen.
4. Start with the driver side front tire.
5. Remove the valve cap from the valve cap stem. Activate the
TPMS sensor by increasing or
decreasing the tire's air pressure
for five seconds, or until a horn
chirp sounds. The horn chirp,
which may take up to
30 seconds to sound, confirms
that the sensor identification
code has been matched to this
tire and wheel position.
6. Proceed to the passenger side front tire, and repeat the
procedure in Step 5. 7. Proceed to the passenger side
rear tire, and repeat the
procedure in Step 5.
8. Proceed to the driver side rear tire, and repeat the procedure in
Step 5. The horn sounds two
times to indicate the sensor
identification code has been
matched to the driver side rear
tire, and the TPMS sensor
matching process is no longer
active. The TIRE LEARNING
ACTIVE message on the DIC
display screen goes off.
9. Turn the ignition switch to LOCK/OFF.
10. Set all four tires to the recommended air pressure
level as indicated on the Tire
and Loading Information label.
11. Put the valve caps back on the valve stems.

Vehicle Care 10-53
on page 9‑10, for more
information about the Tire and
Loading Information Label and
its location on your vehicle.
Different Size Tires and
Wheels
If you add wheels or tires that are a
different size than your original
equipment wheels and tires, this
could affect the way your vehicle
performs, including its braking, ride
and handling characteristics,
stability, and resistance to rollover.
Additionally, if your vehicle has
electronic systems such as anti-lock
brakes, rollover airbags, traction
control, and electronic stability
control, the performance of these
systems can be affected.
{WARNING
If you add different sized wheels,
your vehicle may not provide an
acceptable level of performance
and safety if tires not
recommended for those wheels
are selected. You may increase
the chance that you will crash and
suffer serious injury. Only use GM
specific wheel and tire systems
developed for your vehicle, and
have them properly installed by a
GM certified technician.
See Buying New Tires
on
page 10‑51and Accessories and
Modificationson page 10‑3for
additional information.
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
(NHTSA), 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
(UTQG) system does not apply
to deep tread, winter-type snow
tires, space-saver, or temporary

Vehicle Care 10-57
be very bumpy and noisy, but you
can still steer. Gently brake to a
stop, well off the road if possible.
{WARNING
Lifting a vehicle and getting
under it to do maintenance or
repairs is dangerous without the
appropriate safety equipment and
training. If a jack is provided with
the vehicle, it is designed only for
changing a flat tire. If it is used for
anything else, you or others could
be badly injured or killed if the
vehicle slips off the jack. If a jack
is provided with the vehicle, only
use it for changing a flat tire.
If a tire goes flat, avoid further tire
and wheel damage by driving slowly
to a level place. Turn on the hazard
warning flashers. See Hazard
Warning Flashers on page 6‑3.
{WARNING
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 firmly.
2. Put an automatic transmission shift lever in
P (Park), or shift a manual
transmission to 1 (First) or
R (Reverse).
3. Turn off the engine and do not restart while the vehicle
is raised.
4. Do not allow passengers to remain in the vehicle.
(Continued)
WARNING (Continued)
To be certain the vehicle will not
move, 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.
This vehicle may come with a jack
and spare tire or a tire sealant and
compressor kit. To use the jacking
equipment to change a spare tire
safely, follow the instructions below.
Then see Tire Changing
on
page 10‑66. To use the tire sealant
and compressor kit, see Tire
Sealant and Compressor Kit
on
page 10‑58.

10-58 Vehicle Care
When the vehicle has a flat tire (B),
use the following example as a
guide to assist you in the placement
of wheel blocks (A).
A. Wheel Block
B. Flat Tire
The following information explains
how to repair or change a tire.
Tire Sealant and
Compressor Kit
{WARNING
Idling a vehicle in an enclosed
area with poor ventilation is
dangerous. Engine exhaust may
enter the vehicle. Engine exhaust
contains Carbon Monoxide (CO)
which cannot be seen or smelled.
It can cause unconsciousness
and even death. Never run the
engine in an enclosed area that
has no fresh air ventilation. For
more information, seeEngine
Exhaust on page 9‑21.
{WARNING
Over-inflating a tire could cause
the tire to rupture and you or
others could be injured. Be sure
to read and follow the tire sealant
(Continued)
WARNING (Continued)
and compressor kit instructions
and inflate the tire to its
recommended pressure. Do not
exceed the recommended
pressure.
{WARNING
Storing the tire sealant and
compressor kit 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 the tire
sealant and compressor kit in its
original location.
If this vehicle has a tire sealant and
compressor kit, there may not be a
spare tire, tire changing equipment,
and on some vehicles there may not
be a place to store a tire.

Vehicle Care 10-61
2. Unwrap the sealant/air hose (F)and the power plug (H).
3. Place the kit on the ground. Make sure the tire valve stem is
positioned close to the ground
so the hose will reach it.
4. Remove the valve stem cap from the flat tire by turning it
counterclockwise.
5. Attach the sealant/air hose (F) onto the tire valve stem. Turn it
clockwise until it is tight.
6. Plug the power plug (H) into the accessory power outlet in the
vehicle. Unplug all items from
other accessory power outlets.
See Power Outlets
on
page 5‑8.
If the vehicle has an accessory
power outlet, do not use the
cigarette lighter.
If the vehicle only has a cigarette
lighter, use the cigarette lighter.
Do not pinch the power plug
cord in the door or window. 7. Start the vehicle. The vehicle
must be running while using the
air compressor.
8. Turn the selector switch (A) counterclockwise to the
Sealant + Air position.
9. Press the on/off (B) button to turn the tire sealant and
compressor kit on.
The compressor will inject
sealant and air into the tire.
The pressure gage (C) will
initially show a high pressure
while the compressor pushes the
sealant into the tire. Once the
sealant is completely dispersed
into the tire, the pressure will
quickly drop and start to rise
again as the tire inflates with
air only.
10. Inflate the tire to the recommended inflation
pressure using the pressure
gage (C). The recommended
inflation pressure can be found on the Tire and Loading
Information label. See
Tire
Pressure on page 10‑43.
The pressure gage (C) may
read higher than the actual tire
pressure while the compressor
is on. Turn the compressor off
to get an accurate pressure
reading. The compressor may
be turned on/off until the
correct pressure is reached.
Notice: If the recommended
pressure cannot be reached after
approximately 25 minutes, the
vehicle should not be driven
farther. The tire is too severely
damaged and the tire sealant and
compressor kit cannot inflate the
tire. Remove the power plug from
the accessory power outlet and
unscrew the inflating hose from
the tire valve. See Roadside
Assistance Program on
page 13‑5.

10-62 Vehicle Care
11. Press the on/off button (B) toturn the tire sealant and
compressor kit off.
The tire is not sealed and will
continue to leak air until the
vehicle is driven and the
sealant is distributed in the tire,
therefore, Steps 12 through
18 must be done immediately
after Step 11.
Be careful while handling the
tire sealant and compressor kit
as it could be warm after
usage.
12. Unplug the power plug (H) from the accessory power outlet in
the vehicle.
13. Turn the sealant/air hose (F) counterclockwise to remove it
from the tire valve stem.
14. Replace the tire valve stem cap.
15. Replace the sealant/air hose (F), and the power
plug (H) back in their original
location.
16. If the flat tire was able to inflate
to the recommended inflation
pressure, remove the
maximum speed label from the
sealant canister (E) and place
it in a highly visible location.
The label is a reminder not to
exceed 55 mph (90 km/h) until
the damaged tire is repaired or
replaced.
17. Return the equipment to its original storage location in the
vehicle.
18. Immediately drive the vehicle 5 miles (8 km) to distribute the
sealant in the tire.
19. Stop at a safe location and check the tire pressure. Refer
to Steps 1 through 11 under
“Using the Tire Sealant and Compressor Kit without Sealant
to Inflate a Tire (Not
Punctured).”
If the tire pressure has fallen
more than 10 psi (68 kPa)
below the recommended
inflation pressure, stop driving
the vehicle. The tire is too
severely damaged and the tire
sealant cannot seal the tire.
See
Roadside Assistance
Program on page 13‑5.
If the tire pressure has not
dropped more than 10 psi
(68 kPa) from the
recommended inflation
pressure, inflate the tire to the
recommended inflation
pressure.
20. Wipe off any sealant from the wheel, tire, and vehicle.
21. Dispose of the used sealant canister (E) and sealant/air
hose (F) assembly at a local
dealer/retailer or in accordance
with local state codes and
practices.

10-64 Vehicle Care
4. Remove the tire valve stem capfrom the flat tire by turning it
counterclockwise.
5. Attach the air only hose (G) onto the tire valve stem by turning it
clockwise until it is tight.
6. Plug the power plug (H) into the accessory power outlet in the
vehicle. Unplug all items from
other accessory power outlets.
See Power Outlets
on
page 5‑8.
If the vehicle has an accessory
power outlet, do not use the
cigarette lighter.
If the vehicle only has a cigarette
lighter, use the cigarette lighter.
Do not pinch the power plug
cord in the door or window.
7. Start the vehicle. The vehicle must be running while using the
air compressor.
8. Turn the selector switch (A) clockwise to the Air Only
position. 9. Press the on/off (B) button to
turn the compressor on.
The compressor will inflate the
tire with air only.
10. Inflate the tire to the recommended inflation
pressure using the pressure
gage (C). The recommended
inflation pressure can be found
on the Tire and Loading
Information label. See Tire
Pressure on page 10‑43.
The pressure gage (C) may
read higher than the actual tire
pressure while the compressor
is on. Turn the compressor off
to get an accurate reading. The
compressor may be turned on/
off until the correct pressure is
reached.
If you inflate the tire higher
than the recommended
pressure you can adjust the
excess pressure by pressing
the pressure deflation
button (D), if equipped, until the
proper pressure reading is reached. This option is only
functional when using the air
only hose (G).
11. Press the on/off button (B) to turn the tire sealant and
compressor kit off.
Be careful while handling the
tire sealant and compressor kit
as it could be warm after
usage.
12. Unplug the power plug (H) from the accessory power outlet in
the vehicle.
13. Disconnect the air only hose (G) from the tire
valve stem, by turning it
counterclockwise, and replace
the tire valve stem cap.
14. Replace the air only hose (G) and the power plug (H) and
cord back in its original
location.
15. Place the equipment in the original storage location in the
vehicle.

10-66 Vehicle Care
Tire Changing
Removing 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 storagecompartment by pulling on the
latch tab, located toward the rear
of the vehicle, 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 first.
The tools you will be using include
the jack (A) and lug wrench (B).

Vehicle Care 10-67
Removing the Spare Tire
The compact spare tire is located
under the vehicle, in front of the rear
bumper. SeeCompact Spare Tire
on page 10‑77for more information
about the compact spare.
A. Rear Convenience Center
B. Lug Wrench
C. Storage Compartment Cap Hole
D. 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 and
remove the cap on the bottom of
the storage compartment.
2. Open 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 itthrough the wheel opening to
remove the spare tire from the
cable.

10-68 Vehicle Care
6. Turn the wrench clockwise toraise the cable back up after
removing the spare tire.
Do not store a full-size or a flat
road tire under the vehicle. See
“Storing a Flat or Spare Tire and
Tools” later in this section.
To continue changing the flat tire,
see “Removing the Flat Tire and
Installing the Spare Tire” later in this
section.
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, see Secondary
Latch System on page 10‑74.
If it is visible, first 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, see
Secondary Latch System
on
page 10‑74.
Removing the Flat Tire and
Installing the Spare Tire
1. Do a safety check before proceeding. See If a Tire Goes
Flat
on page 10‑56for 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 flat
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 flat tire repaired or
replaced.