warning TOYOTA 4RUNNER 1998 User Guide

4RUNNER (1998)
To lock the rear differential, push
the switch.
Be sure to stop the wheels before
locking the differential.
Vehicles with manual transmis-
sion'For easy locking, depress the
clutch pedal, push the lock switch and
slowly release the clutch pedal.
The indicator light will blink when the
switch is turned on. Wait a few se-
conds for the system to complete op-
eration. After the differential is locked,
the light will stop blinking and remain on. The anti- lock brake system does not
operate when the rear differential is
locked. It is normal operation for the
ºABSº warning light to be on at this
time.CAUTION

Do not lock the differential until
the wheels have stopped spin-
ning. Otherwise, the vehicle
may move in an unexpected
direction when the differential
lock is engaged, resulting in an
accident. This may also lead to
possible damage to differential
lock component parts.
Do not drive over 8 km/h (5
mph) when the differential is
locked.
To unlock the differential, push the
switch once again.
Unlock the differential as soon as the
vehicle moves out.

4RUNNER (1998)
Your engine is fitted with twin
ground electrode spark plugs.
NOTICE
Use only twin ground electrode
spark plugs for your engine per-formance.
Brake system
TANDEM MASTER CYLINDER
BRAKE SYSTEM
The tandem master cylinder brake
system is a hydraulic system with two
separate sub- systems. If either sub-
system s hould fail, the other will still
work. However, the pedal will be hard-
er to press, and your stopping dis-
tance will be longer. Also, the brake
system warning light may come on.
CAUTION
Do not drive your vehicle with
only a single brake system. Have
your brakes fixed immediately.
BRAKE BOOSTER The brake booster uses engine vacu-
um to power- assist the brakes. If the
engine should quit while you are driv-
ing, you can bring the vehicle to a
stop with normal pedal pressure.
There is enough reserve vacuum for
one or two stopsÐbut no more!
CAUTION

Do not pump the brake pedal if
the engine stalls. Each push on
the pedal uses up your vacuum
reserve.

4RUNNER (1998)
Even if the power assist is
completely lost, the brakes will
still work. But you will have to
push the pedal hardÐmuch
harder than normal. And your
braking distance will be longer.
ANTI- LOCK BRAKE SYSTEM
(with ºABSº warning light)
The anti- lock brake system is de-
signed to automatically help prevent
lock- up of the wheels during sudden
braking or braking on slippery road
surfaces. This assists in providing
directional stab ility and steering per-
formance of the vehicle under these
circumstances.
The anti- lock brake system becomes
operative after the vehicle has accel-
erated to a speed in excess of
approximately 10 km/h (6 mph). It
stops operating when the vehicle de-
celerates to a speed below approxi-
mately 5 km/h (3 mph).
You may hear a sound in the engine
compartment for a few seconds when
the engine is started or just after the
vehicle is started. This means that the
anti- lock brake system is in the self
check mode, and does not indicate a
malfunction. Effective way to press the ºABSº
brake pedal: When the anti- lock brake
system function is in action, you may
feel the brake pedal pulsating and
hear a noise. In this situation, to let
the anti- lock brake system work for
you, just hold the brake pedal down
more firmly. Do not pump the brake.
This will result in reduced braking per-
formance.
The brake pedal pulsation caused by
the anti- lock brake system may indi-
cate hazardous road surface condi-
tions. Although the anti- lock brake
system assists in providing vehicle
control, it is still important to drive
with all due care, because the anti-
lock brake system cannot overcome
the laws of physics that act on your
vehicle:
Braking capab ility is dependent on
tire friction with the road surface.
Even though the anti- lock brake
system is operating, a driver can-
not maintain full control on certain
slippery road surfaces, when cor-
nering at high speeds, or in violent
maneuvers.
Avoid high speeds on wet roads.
The anti- lock brake system cannot
eliminate the risk of hydroplaning
and loss of tire friction. Always maintain a safe distance from
the vehicle in front of you. Compared
with vehicles not fitted with an anti-
lock brake system, your vehicle may
require a longer stopping distance in
the following cases:
Driving on rough, gravel or snow-
covered roads.
Driving with tire chains installed.
Driving on roads where the road
surface is pitted or has other differ-
ences in surface height.
CAUTION
Do not use tires other than the
manufacturer 's designated tires,
and do not mix tires or wheels of
different sizes. You may prevent
the antilock brake system from
operating at full effectiveness.
Vehicles with rear differential lock sys-
tem 'The anti- lock brake system does
not operate when the rear differential
is locked. It is normal operation for
the ºABSº warning light to be on at
this time.

4RUNNER (1998)
Ty p e A
Ty p e B
ºABSº warning light This light comes on when the ignition
key is turned to the ºONº position.
After about 3 seconds, the light will
go off.

4RUNNER (1998)
When the light is on with the rear
differential locked, it indicates the
anti- lock brake system will not oper-
ate.
If either of the following conditions
occurs, this indicates a malfunction
somewhere in the parts monitored by
the warning light system. Contact your
Toyota dealer as soon as possible to
service the vehicle.
The light does not come on as
described above, or remains on.
The light comes on while driving
with the rear differential unlocked.
The light does not come on with
the rear differential locked.
The light comes on while driving. Even if the anti- lock brake system
should fail, the brake system will still
operate conventionally. However, when
the ºABSº warning light is on (and the
brake system warning light is off), the
anti- lock brake system is not assist-
ing brake performance so that the
wheels can lock- up during sudden
braking or braking on slippery road
surfaces. Have your vehicle checked
by your Toyota dealer as soon as
possible.
Brake pad wear limit indica-
tors

4RUNNER (1998)
The brake pad wear limit indicators
on your disc brakes give a warning
noise when the brake pads are
worn to where replacement is re-
quired.
If you hear a squealing or scraping
noise while driving, have the brake
pads checked and replaced by your
Toyota dealer as soon as possible.
Expensive rotor damage can result if
the pads are not replaced when nec-
essary. Luggage stowage pr
ecau-
tions
When stowing luggage or cargo in the
vehicle, observe the following:
Put luggage or cargo in the lug-
gage compartment when at all pos-
sible. Be sure all items are se-
cured in place.
Be careful to keep the vehicle bal-
anced. Locating the weight as far
forward as possible helps maintain
balance.
For better fuel economy, do not
carry unneeded weight.
CAUTION
To prevent luggage or packages
from sliding forward during
braking, do not stack anything
in the luggage compartment
higher than the seatbacks. Keep
luggage or packages low, as
close to the floor as possible.
Never allow anyone to ride in
the luggage compartment. It is
not designed for passengers.
They should ride in their seats
with their seat belts properly
fastened. Otherwise, they are
much more likely to suffer seri-
ous bodily injury, in the event
of sudden braking or a colli-
sion.

4RUNNER (1998)
Tire surface and wheel nuts
Check the tires carefully for cuts,
damage or excessive wear. See Chap-
ter 7- 2 for additional information.
When checking the tires, make sure
no nuts are missing, and check the
nuts for looseness. Tighten them if
necessary.
Tire rotation
Rotate the tires every 12000 km (7500
miles). See Chapter 7- 2 for additional
information.
Fluid leaks
Check underneath for leaking fuel, oil,
water or other fluid after the vehicle
has been parked for a while. If you
smell fuel fumes or notice any leak,
have the cause found and corrected
immediately.
Doors and engine hood
Check that all doors including back
door operate smoothly and all latches
lock securely. Make sure the engine
hood secondary latch secures the
hood from opening when the primary
latch is released. INSIDE THE VEHICLE
Items listed below should be
checked regularly, e.g. while per-
forming periodic services, cleaning
the vehicle, etc.
Lights
Make sure the headlights, stop lights,
tail lights, turn signal lights, and other
lights are all working. Check headlight
aim.
Service reminder indicators and
warning buzzers
Check that all service reminder indica-
tors and warning buzzers function
properly.
Steering wheel
Check that it has the specified free-
play. Be alert for changes in steering
condition, such as hard steering or
strange noise.
Seats
Check that all seat controls such as
seat adjusters, seatback recliner, etc.
operate smoothly and that all latches
lock securely in any position. Check
that the head restraint move up and
down smoothly and that the locks hold
securely in any latched position. For
folding- down rear seatbacks, swing- up
rear seat cushions and detachable
temporary third seat, check that the
latches lock securely.Seat belts
Check that the seat belt system such
as buckles, retractors and anchors op-
erate properly and smoothly. Make
sure the belt webbing is not cut,
frayed, worn or damaged.
Accelerator pedal
Check the pedal for smooth operation
and uneven pedal effort or catching.
Clutch pedal
Check the pedal for smooth operation.
Brake pedal
Check the pedal for smooth operation
and that the pedal has the proper
clearance. Check the brake booster
function.
Brakes
At a safe place, check that the brakes
do not pull to one side when applied.
Parking brake
Check that the lever has the proper
travel and that, on a safe incline, your
vehicle is held securely with only the
parking brake applied.

4RUNNER (1998)
Replacement with used wheels is not
recommended as they may have been
subjected to rough treatment or high
mileage and could fail without warning.
Also, bent wheels which have been
straightened may have structural dam-
age and therefore should not be used.
Never use an inner tube in a leaking
wheel which is designed for a tube-
less tire. Aluminum wheel precautions
After driving your vehicle the first
1600 km (1000 miles), check that
the wheel nuts are tight.
If you have rotated, repaired or
changed your tires, check that the
wheel nuts are still tight after driv-
ing 1600 km (1000 miles).
When using tire chains, be careful
not to damage the aluminum
wheels.
Use only the Toyota wheel nuts
and wrench designed for your alu-
minum wheels.
When balancing your wheels, use
only Toyota balance weights or
equivalent and a plastic or rubber
hammer.
As with any wheel, periodically
check your aluminum wheels for
damage. If damaged, replace im-
mediately.

4RUNNER (1998)
J80003
Instrument panel
14. HEAD(LH) 10 A: Left- hand head-
light
15. DRL 7.5 A: Daytime running light
system
16. HEAD (LO RH) 10 A: Right- hand
headlight(low beam)
17. HEAD (LO LH) 10 A: Left- hand
headlight(low beam)
18. HEAD (HI RH) 10 A: Right- hand
headlight(high beam)
19. HEAD (HI LH) 10 A: Left- hand
headlight(high beam)
20. ACC 15 A: Car audio system, pow-
er antenna, clock, power rear view
mirror control 21. ECU- B 7.5 A:
SRS airbag warning
light
22. 4WD 20 A: A.D.D. control system,
four- wheel drive control system,
rear differential lock system
23. TURN 10 A: Turn signals lights,
emergency flashers
24. GAUGE 10 A: Gauges and meters,
back window defogger, daytime
running light system, air condition-
ing system, electric moon roof
25. ECU- IG 10 A: cruise control sys-
tem, anti- lock brake system, elec-
tronically controlled automatic
transmission system, power anten-na
26. WIPER 20 A: windshield wipers
and washer, back window wiper 27. IGN 7.5 A:
SRS airbag system,
multiport fuel injection system / se-
quential multiport fuel injection sys-
tem, discharge warning light

4RUNNER (1998)
Uniform tire quality grading
This information has been prepared in
accordance with regulations issued by
the National Highway Traffic Safety
Administration of the U.S. Department
of Transportation. It provides the pur-
chasers and/or prospective purchasers
of Toyota vehicles with information on
uniform tire quality grading.
Your Toyota dealer will help answer
any questions you may have as you
read this information.
DOT quality gradesÐAll passenger
vehicle tires must conform to Fed-
eral Safety Requirements in addition
to these grades. These quality
grades are molded on the sidewall.
Treadwear ÐThe treadwear grade is a
comparative rating based on the wear
rate of the tire when tested under
controlled conditions on a specified
government test course. For example,
a tire graded 150 would wear one and
a half (1- 1/2) times as well on the
government course as a tire graded
100. The relative performance of tires
depends upon the actual conditions of
their use, however, and may depart
significantly from the norm due to
variations in driving habits, service
practices and differences in road char-
acteristics and climate. Traction A, B, C
ÐThe traction
grades, from highest to lowest, are A,
B, and C, and they represent the
tire's ability to stop on wet pavement
as measured under controlled condi-
tions on specified government test
surfaces of asphalt and concrete. A
tire marked C may have poor traction
performance.
Warning: The traction grade assigned
to this tire is based on braking
(straight ahead) traction tests and
does not include cornering (turning)
traction.
Temperature A, B, C ÐThe tempera-
ture grades are A (the highest), B,
and C, representing the tire's resis-
tance to the generation of heat and its
ability to dissipate heat when tested
under controlled conditions on a speci-
fied indoor laboratory test wheel. Sus-
tained high temperature can cause the
material of the tire to degenerate and
reduce tire life, and excessive temper-
ature can lead to sudden tire failure.
The grade C corresponds to a level of
performance which all passenger car
tires must meet under the Federal Mo-
tor Vehicle Safety Standard No. 109.
Grades B and A represent higher lev-
els of performance on the laboratory
test wheel than the minimum required
by law. Warning: The temperature grades for
this tire are established for a tire that
is properly inflated and not over-
loaded. Excessive speed, underinfla-
tion, or excessive loading, either sepa-
rately or in combination, can cause
heat buildup and possible tire failure.