2003 TOYOTA 4RUNNER maintenance schedule

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2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
The air conditioning filter is behind the
glove box.
The air conditioning filter may clog af-
ter long use. The filter may need to be
replaced if the air flow of the air condi-
tioning and heater experiences extreme
reductions in operating efficiency, or if
the windows begin to fog up easily.
To maintain the air conditioning efficiency,
inspect and replace the air conditioning
filter according to the maintenance sched-
ule. (For scheduled maintenance informa-
tion, please refer to the “Scheduled Main-
tenance Guide” or “Owner ’s Manual
Supplement”.)1. Open the glove box. Remove the
screw with a Phillipshead screw-
driver and slide the hook as shown.2. Push each side of the glove box todisconnect the claws.
Checking and replacing the
air conditioning filter

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2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
REPLACING YOUR TIRES
When replacing a tire, use a tire of the
same size and construction, and the
same or greater load capacity as the
originally installed tires. Also, on four
wheel drive models, all the tires must
be the same brand and have the same
tread patterns.
Using any other size or type of tire may
seriously affect handling, ride, speedome-
ter/odometer calibration, ground clearance,
and clearance between the body and tires
or snow chains.
CAUTION
Observe the following instructions.
Otherwise, an accident may occur re-
sulting in death or serious injuries.
Do not mix radial, bias belted, or
biasply tires on your vehicle, as
this may cause dangerous handling
characteristics resulting in loss of
control.
Do not use tires other than the
manufacturer ’s recommended size,
as this may cause dangerous han-
dling characteristics resulting in
loss of control.
Fourwheel drive models:
Do not use tires of different brands,
sizes, construction or tread pat-
terns, as this may cause dangerous
handling characteristics resulting in
loss of control.
Toyota recommends all four tires, or at
least both front or rear tires be re-
placed as a set.
See “If you have a flat tire” on page 283
in Section 4 for tire change procedure.
When a tire is replaced, the wheel
should always be balanced.
An unbalanced wheel may affect vehicle
handling and tire life. Wheels can get out
of balance with regular use and should
therefore be balanced occasionally.
When replacing a tubeless tire, the air
valve should also be replaced with a
new one.
To equalize the wear and help extend
tire life, Toyota recommends that you
rotate your tires according to the main-
tenance schedule. (For scheduled main-
tenance information, please refer to the
“Scheduled Maintenance Guide” or
“Owner ’s Manual Supplement”.) Howev-
er, the most appropriate timing for tire
rotation may vary according to your
driving habits and road surface condi-
tions.
See “If you have a flat tire” on page 283
in Section 4 for tire change procedure.
Rotating tires

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2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
COOLING SYSTEM
Total capacity, L (qt., Imp. qt.):
1GRFE engine 9.8 (10.4, 8.6)
2UZFE engine 12.3 (13,0, 10.8)
Coolant type:
“Toyota Genuine Long Life Coolant” is
filled in your Toyota vehicle. In order to
avoid technical problems, we strongly
recommend using “Toyota Genuine Long
Life Coolant” or equivalent.
With ethyleneglycol type coolant for a
proper corrosion protection of aluminum
components
Do not use alcohol type antifreeze or
plain water alone.
Please contact your Toyota dealer for
further details.
BATTERY
Open voltage
∗ at 20 C (68 F):
12.6—12.8 V Fully charged
12.2—12.4 V Half charged
11.8—12.0 V Discharged
∗: Voltage that is checked 20 minutes af-
ter the key is removed with all the
lights turned off
Charging rates: 5 A max. AUTOMATIC TRANSMISSION
Fluid capacity (drain and ref
ill),
L (qt., Imp. qt.):
1GRFE engineUp to 2.0 (2.1, 1.8)
2UZFE engine Up to 3.0 (3.2, 2.6)
Fluid type: Toyota Genuine ATF Type TIV
Change automatic transmission fluid only
as necessary.
Generally, it is necessary to change
automatic transmission fluid only if your
vehicle is driven under one of the Special
Operating Conditions listed in your
“Scheduled Maintenance Guide” or
“Owner ’s Manual Supplement”. When
changing the automatic transmission fluid,
use only “Toyota Genuine ATF Type TIV”
(ATF JWS3309 or NWS6500) to aid in
assuring optimum transmission perfor-
mance.
Notice: Using automatic transmission
fluid other than “Toyota Genuine ATF
Type TIV” may cause deterioration in
shift quality, locking up of your trans-
mission accompanied by vibration, and
ultimately damage the automatic trans-
mission of your vehicle. Please contact your Toyota dealer for fur-
ther details.
TRANSFER
Oil capacity, L (qt., Imp. qt.):
1.4 (1.5, 1.2)
Oil type: Hypoid gear oil API GL5
Recommended oil viscosity: SAE 75W90
DIFFERENTIAL (1GRFE engine)
Oil capacity, L (qt., Imp. qt.): Twowheel drive models 3.05 (3.2, 2.7)
Fourwheel drive models Front 1.5 (1.6, 1.3)
Rear 3.05 (3.2, 2.7)
Oil type: Hypoid gear oil API GL5
Recommended oil viscosity: Front SAE 75W90
Rear Above 18 C (0 F)
SAE 90
Below 18 C (0 F)
SAE 80W or 80W90