tires SUBARU TRIBECA 2008 Service Manual

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
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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
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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
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Specifications................................................. 12-2
Dimensions.................................................... 12-2
Engine ........................................................... 12-2
Electrical system ............................................ 12-3
Capacities ...................................................... 12-3
Tires .............................................................. 12-3
Wheel alignment ............................................ 12-4
Fuses and circuits ......................................... 12-5
Fuse panel located in the passenger
compartment ................................................ 12-5
Fuse panel located in the engine compartment ................................................ 12-7
Bulb chart....................................................... 12-8
Vehicle identification ..................................... 12-9
Specifications
12
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&Electrical systemBattery type and capacity (5HR) 75D23L (12V-52AH)
Alternator 12V-130A
Spark plugs SILFR6A (NGK)&
CapacitiesFuel tank 16.9 US gal (64 liters, 14.1 Imp gal)
Engine oil 6.7 US qt (6.3 liters, 5.5 Imp qt)
Transmission fluid 10.4 US qt (9.8 liters, 8.6 Imp qt)
Front differential gear oil 1.5 US qt (1.4 liters, 1.2 Imp qt)
Rear differential gear oil 0.8 US qt (0.8 liter, 0.7 Imp qt)
Power steering fluid 0.9 US qt (0.9 liter, 0.8 Imp qt)
Engine coolant 8.0 US qt (7.6 liters, 6.7 Imp qt)&TiresTire size
P255/55R18 104H
Wheel size 1868JJ
Pressure Front 33 psi (230 kPa, 2.3 kgf/cm
2)
Rear 32 psi (220 kPa, 2.2 kgf/cm2)
Rear at trailer towing 32 psi (220 kPa, 2.2 kgf/cm2)
Temporary spare tire Size T165/80R17
Pressure 60 psi (420 kPa, 4.2 kgf/cm2)Specifications
12-3
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For U.S.A........................................................ 13-2
Tire information .............................................. 13-2
Tire labeling................................................... 13-2
Recommended tire inflation pressure .............. 13-5
Glossary of tire terminology ........................... 13-6
Tire care –maintenance and safety
practices ...................................................... 13-7
Vehicle load limit –how to determine .............. 13-8 Determining compatibility of tire and vehicle load
capacities ................................................... 13-11
Adverse safety consequences of overloading on handling and stopping and on tires ............. 13-11
Steps for Determining Correct Load Limit ...... 13-11
Uniform tire quality grading standards....... 13-12
Treadwear.................................................... 13-12
Traction AA, A, B, C ...................................... 13-12
Temperature A, B, C ...................................... 13-13
Reporting safety defects (U.S.A.) ................ 13-14
Consumer information and Reporting safety defects
13
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Example:(6) Load Index: A numerical code
which specifies the maximum load
a tire can carry at the speed
indicated by its speed symbol, at
maximum inflation pressure.
For example,“104 ”means 1,984
lbs (900 kg), “100 ”means 1,764 lbs
(800 kg), “90 ”means 1,323 lbs (600
kg).
WARNING
Load indices apply only to the
tire, not to the vehicle. Putting
a load rated tire on any vehicle
does not mean the vehicle can
be loaded up to the tire ’s rated
load.
(7) Speed Rating: An alphabetical
system describing a tire ’s capability
to travel at established and prede-
termined speeds.
For example, “H ” means 130 mph (210 km/h).
WARNING
.
Speed ratings apply only to
the tire, not to the vehicle.
Putting a speed rated tire on
any vehicle does not mean
the vehicle can be operated
at the tire ’s rated speed.
.
The speed rating is void if
the tires are worn out, da-
maged, repaired, retreaded,
or otherwise altered from
their original condition. If
tires are repaired, re-
treaded, or otherwise al-
tered, they may not be sui-
table for original equipment
tire designed loads and
speeds.
! Tire Identification Number (TIN)Tire Identification Number (TIN) is
marked on the intended outboard
sidewall. The TIN is composed of
four groups. Here is a brief review
of the TIN with a breakdown of its individual elements.
(1) Manufacturer
’s Identification
Mark
(2) Tire Size
(3) Tire Type Code
(4) Date of Manufacture
The first two figures identify the
week, starting with “01 ”to represent
the first full week of the calendar
year; the second two figures repre-
sent the year. For example, 0101
means the 1st week of 2001.! Other markingsThe following makings are also
placed on the sidewall.!Maximum permissible inflation
pressureThe maximum cold inflation pres-
sure to which this tire may be
inflated. For example, “300 kPa
(44 PSI) MAX. PRESS ”.
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13-3
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&Recommended tire inflation pressure! Recommended cold tire inflation pressureRecommended cold tire inflation pressure for your vehicle ’s tires is as follows,
Tire size P255/55R18 104H
Wheel size 18 68JJ
Pressure Front 33 psi (230 kPa, 2.3 kgf/cm
2)
Rear 32 psi (220 kPa, 2.2 kgf/cm2)
Rear at trailer towing 32 psi (220 kPa, 2.2 kgf/cm2)
Temporary spare tire Size T165/80R17
Pressure 60 psi (420 kPa, 4.2 kgf/cm2)
Consumer information and Reporting safety defects
13-5
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13-6
Consumer information and Reporting safety defects
!Vehicle placardThe vehicle placard is affixed to the
driver ’s side B-pillar.Example:
The vehicle placard shows original
tire size, recommended cold tire
inflation pressure on each tire at
maximum loaded vehicle weight,
seating capacity and loading infor-
mation.! Adverse safety consequences
of under-inflationDriving at high speeds with exces-
sively low tire pressures can cause
the tires to flex severely and to
rapidly become hot. A sharp in-
crease in temperature could cause
tread separation, and failure of the
tire(s). Possible resulting loss of
vehicle control could lead to an
accident.!Measuring and adjusting air
pressure to achieve proper in-
flationCheck and, if necessary, adjust the
pressure of each tire (including the
spare) at least once a month and
before any long journey. Check the
tire pressures when the tires are
cold. Use a pressure gauge to
adjust the tire pressures to the specific values. Driving even a
short distance warms up the tires
and increases the tire pressures.
Also, the tire pressures are affected
by the outside temperature. It is
best to check tire pressure out-
doors before driving the vehicle.
When a tire becomes warm, the air
inside it expands, causing the tire
pressure to increase. Be careful not
to mistakenly release air from a
warm tire to reduce its pressure.
&
Glossary of tire terminology.
Cold tire pressure
The pressure in a tire that has been
driven less than 1 mile or has been
standing for three hours or more..
Maximum inflation pressure
The maximum cold inflation pres-
sure to which a tire may be inflated..
Recommended inflation pres-
sure
The cold inflation pressure recom-
mended by a vehicle manufacturer..
Intended outboard sidewall(1)
The sidewall that contains a
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whitewall, bears white lettering
or bears manufacturer, brand,
and/or model name molding that
is higher or deeper than the
same molding on the other side-
wall of the tire, or(2)
The outward facing sidewall
of an asymmetrical tire that has
a particular side that must al-
ways face outward when mount-
ing on a vehicle.
.
Accessory weight
The combined weight (in excess of
those standard items which may be
replaced) of floor mats, leather
seats and cross bars to the extent
that these items are available as
factory-installed equipment
(whether installed or not)..
Curb weight
The weight of a motor vehicle with
standard equipment including the
maximum capacity of fuel, oil, and
coolant and air conditioning..
Maximum loaded vehicle weight
The sum of curb weight, accessory
weight, vehicle capacity weight and production options weight.
.
Normal occupant weight
150 lbs (68 kg) times the number of
occupants (3 occupants)..
Occupant distribution
Distribution of occupants in a vehi-
cle, 2 in front, 1 in rear seat..
Production options weight
The combined weight of those
installed regular production options
weighing over 5.1 lbs (2.3 kg) in
excess of those standards items
which they replace, not previously
considered in curb weight or acces-
sory weight..
Vehicle capacity weight
The total weight of cargo, luggage
and occupants that can be added to
the vehicle..
Vehicle maximum load on a tire
Load on an individual tire that is
determined by distributing to each
axle its share of the maximum
loaded vehicle weight and dividing
by two..
Vehicle normal load on a tire
Load on an individual tire that isdetermined by distributing to each
axle its share of the curb weight,
accessory weight, and normal oc-
cupant weight and dividing by two.
&
Tire care –maintenance and
safety practices.
Check on a daily basis that the
tires are free from serious damage,
nails, and stones. At the same time,
check the tires for abnormal wear.
.
Inspect the tire tread regularly
and replace the tires before their
tread wear indicators become visi-
ble. When a tire ’s tread wear
indicator becomes visible, the tire
is worn beyond the acceptable limit
and must be replaced immediately.
With a tire in this condition, driving
at even low speeds in wet weather
can cause the vehicle to hydro-
plane. Possible resulting loss of
vehicle control can lead to an
accident.
.
To maximize the life of each tire
and ensure that the tires wear
uniformly, it is best to rotate the
Consumer information and Reporting safety defects
13-7
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