2008 SUBARU TRIBECA change wheel

11-24
Maintenance and service
replace all four tires.
!Winter (snow) tires
Winter tires are best suited for driving on
snow-covered and icy roads. However
winter tires do not perform as well as
summer tires and all season tires on roads
other than snow-covered and icy roads.& Tire pressure monitoring
system (TPMS)The tire pressure monitoring system pro-
vides the driver with a warning message
by sending a signal from a sensor that is
installed in each wheel when tire pressure
is severely low. The tire pressure monitor-
ing system will activate only when the
vehicle is driven. Also, this system may
not react immediately to a sudden drop in
tire pressure (for example, a blow-out
caused by running over a sharp object).
If you adjust the tire pressures in a warm
garage and will then drive the vehicle in
cold outside air, the resulting drop in tire
pressures may cause the low tire pressure
warning light to come on. To avoid this
problem when adjusting the tire pressures
in a warm garage, inflate the tires to
pressures higher than those shown on the
tire placard. Specifically, inflate them by an
extra 1 psi (6.9 kPa, 0.07 kgf/cm
2) for
every difference of 10 8F (5.6 8C) between the temperature in the garage and the
temperature outside. By way of example,
the following table shows the required tire
pressures that correspond to various out-
side temperatures when the temperature
in the garage is 60
8F (15.6 8C).
Standard tire pressures:
Front: 33 psi (230 kPa, 2.3 kgf/cm
2)
Rear: 32 psi (220 kPa, 2.2 kgf/cm2)
Garage temperature: 60 8F (15.6 8C)
Outside
temperature Adjusted pressure
[psi (kPa, kgf/cm
2)]
front rear
30 8F( −18C) 36 (250, 2.5) 35 (240, 2.4)
10 8F( −12 8C) 38
(265, 2.65) 37
(255, 2.55)
−10 8F
( −23 8C) 40 (280, 2.8) 39 (270, 2.7)
If the low tire pressure warning light
comes on when you drive the vehicle in
cold outside air after adjusting the tire
pressures in a warm garage, re-adjust the
tire pressures using the method described
above. Then, increase the vehicle speed
to at least 20 mph (32 km/h) and check to
see that the low tire pressure warning light
goes off a few minutes later. If the low tire
pressure warning light does not go off, the
tire pressure monitoring system may not be functioning normally. In this event, go
to a SUBARU dealer to have the system
inspected as soon as possible.
While the vehicle is driven, friction be-
tween tires and the road surface causes
the tires to warm up. After illumination of
the low tire pressure warning light, any
increase in the tire pressures caused by
an increase in the outside air temperature
or by an increase in the temperature in the
tires can cause the low tire pressure
warning light to go off.
System resetting is necessary when the
wheels are changed (for example, a
switch to snow tires) and new TPMS
valves are installed on the newly fitted
wheels. Have this work performed by a
SUBARU dealer following wheel replace-
ment.
It may not be possible to install TPMS
valves on certain wheels that are on the
market. Therefore, if you change the
wheels (for example, a switch to snow
tires), use wheels that have the same part
number as the standard-equipment
wheels. Without four operational TPMS
valve/sensors on the wheels, the TPMS
will not fully function and the warning light
in the instrument panel will illuminate
steadily after blinking for approximately
one minute.
ProCarManuals.com

Vehicles equipped with unidirectional tires
1) FrontTire wear varies from wheel to wheel. To
maximize the life of each tire and ensure
that the tires wear uniformly, it is best to
rotate the tires every 7,500 miles (12,000
km). Move the tires to the positions shown
in the illustration each time they are
rotated.
Replace any damaged or unevenly worn
tire at the time of rotation. After tire
rotation, adjust the tire pressures and
make sure the wheel nuts are correctly
tightened.
After driving approximately 600 miles
(1,000 km), check the wheel nuts again
and retighten any nut that has become
loose.
&Tire replacementThe wheels and tires are important and
integral parts of your vehicle ’s design;
they cannot be changed arbitrarily. The
tires fitted as standard equipment are
optimally matched to the characteristics
of the vehicle and were selected to give
the best possible combination of running
performance, ride comfort, and service
life. It is essential for every tire to have a
size and construction matching those
shown on the tire placard and to have a
speed symbol and load index matching
those shown on the tire placard.
Using tires of a non-specified size detracts
from controllability, ride comfort, braking
performance, speedometer accuracy and
odometer accuracy. It also creates incor-
rect body-to-tire clearances and inappro-
priately changes the vehicle ’s ground
clearance.
All four tires must be the same in terms of
manufacturer, brand (tread pattern), con-
struction, and size. You are advised to
replace the tires with new ones that are
identical to those fitted as standard equip-
ment.
For safe vehicle operation, SUBARU
recommends replacing all four tires at
the same time.
WARNING
. All four tires must be the same in
terms of manufacturer, brand
(tread pattern), construction, de-
gree of wear, speed symbol, load
index and size. Mixing tires of
different types, sizes or degrees
of wear can result in damage to
the vehicle ’s powertrain. Use of
different types or sizes of tires
can also dangerously reduce
controllability and braking per-
formance and can lead to an
accident.
. Use only radial tires. Do not use
radial tires together with belted
bias tires and/or bias-ply tires.
Doing so can dangerously re-
duce controllability, resulting in
an accident.& Wheel replacementWhen replacing wheels due, for example,
to damage, make sure the replacement
wheels match the specifications of the
wheels that are fitted as standard equip-
ment. Replacement wheels are available
from SUBARU dealers.
Maintenance and service
11-29
–CONTINUED –
ProCarManuals.com

11-30
Maintenance and service
WARNING
Use only those wheels that are
specified for your vehicle. Wheels
not meeting specifications could
interfere with brake caliper opera-
tion and may cause the tires to rub
against the wheel well housing dur-
ing turns. The resulting loss of
vehicle control could lead to an
accident.
Aluminum wheels.Aluminum wheels can be scratched
and damaged easily. Handle them care-
fully to maintain their appearance, perfor-
mance, and safety.1) The length of the wheel nut wrench
CAUTION
There are 2 types of wheel nut
wrenches that apply to different
lengths.
For an aluminum wheel vehicle, the
11.2-inch (285 mm) wheel nut
wrench is equipped as a mainte-
nance tool. And for a chrome plated
wheel vehicle, the 13.2-inch (335
mm) wheel nut wrench is equipped as well. Always use a wheel nut
wrench for an aluminum wheel. If
youuseawrenchforachrome
plated wheel, you cannot tighten it
to the specified torque.
. When any of the wheels are removed
and replaced for tire rotation or to change
a flat tire, always check the tightness of
the wheel nuts after driving approximately
600 miles (1,000 km). If any nut is loose,
tighten it to the following specified torque.
A tightening sequence specification for the
wheel nuts can be found in the “Flat tires”
in chapter 9.
Wheel nuts tightening torque for alu-
minum wheel:
74 to 89 lbf·ft (100 to 120 N·m, 10 to 12
kgf·m)
This torque is equivalent to applying
approximately 88 to 110 lbs (40 to 50 kg)
at the top of the wheel nut wrench.
. Never apply oil to the threaded parts,
wheel nuts, or tapered surface of the
wheel.
. Never let the wheel rub against sharp
protrusions or curbs.
. Be sure to fit tire chains on uniformly
and completely around the tire, otherwise
the chains may scratch the wheel.
. When wheel nuts, balance weights, or
ProCarManuals.com

the center cap is replaced, be sure to
replace them with genuine SUBARU parts
designed for aluminum wheels.
Chrome plated wheels (if
equipped)1) The length of the wheel nut wrench
CAUTION
There are 2 types of wheel nut
wrenches that apply to different
lengths.
For an aluminum wheel vehicle, the
11.2-inch (285 mm) wheel nut
wrench is equipped as a mainte-
nance tool. And for a chrome plated
wheel vehicle, the 13.2-inch (335
mm) wheel nut wrench is equipped
as well. Always use a wheel nut
wrench for a chrome plated wheel. If
you use a wrench for an aluminumwheel, you cannot tighten it to the
specified torque.
. When any of the wheels are removed
and replaced for tire rotation or to change
a flat tire, always check the tightness of
the wheel nuts after driving approximately
600 miles (1,000 km). If any nut is loose,
tighten it to the following specified torque.
A tightening sequence specification for the
wheel nuts can be found in the “Flat tires”
in chapter 9.
Wheel nuts tightening torque for
chrome plated wheel:
89 to 111 lbf·ft (120 to 150 N·m, 12 to 15
kgf·m)
This torque is equivalent to applying
approximately 86 to 108 lbs (39 to 49 kg)
at the top of the wheel nut wrench.
. Never apply oil to the threaded parts,
wheel nuts, or tapered surface of the
wheel.
. Never let the wheel rub against sharp
protrusions or curbs.
. Be sure to fit tire chains on uniformly
and completely around the tire, otherwise
the chains may scratch the wheel.
. When wheel nuts, balance weights, or
the center cap is replaced, be sure to
replace them with genuine SUBARU parts
designed for chrome plated wheels.
Maintenance and service
11-31
ProCarManuals.com

12-2
Specifications
SpecificationsThese specifications are subject to change without notice.&Dimensions
in (mm)
Overall length 191.5 (4,865)
Overall width 73.9 (1,878)
Overall height without roof rail 66.4 (1,686)
with roof rail 67.7 (1,720)
Wheel base 108.2 (2,749)
Tread Front 62.2 (1,580)
Rear 62.1 (1,578)
Ground clearance 8.4 (213)
&
EngineEngine model
EZ36D
(3.6-liter, DOHC, non-turbo)
Engine type Horizontally opposed, liquid cooled 6 cylinder, 4 stroke gasoline engine
Displacement cc (cu-in) 3,630 (222)
Bore 6Stroke in (mm) 3.62 63.58 (92.0 691.0)
Compression ratio 10.5 : 1
Firing order 1
–6 –3–2 –5–4
ProCarManuals.com