2003 TOYOTA LAND CRUISER oil pressure

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Instrument cluster overview
1. Voltmeter
2. Speedometer
3. Service reminder indicators and indicator lights 4. Tachometer
5. Engine oil pressure gauge
6. Engine coolant temperature gauge
7. Odometer and two trip meters
8. Trip meter reset knob
9. Fuel gauge

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OPERATION OF INSTRUMENTS AND
CONTROLS
Gauges, Meters and Service reminder indicators
Fuel gauge11 4
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Engine coolant temperature gauge 11 4
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Engine oil pressure gauge 11 5
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Vo ltme te r 11 6
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Tachometer 11 6
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Odometer and two trip meters 11 7
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Service reminder indicators and warning buzzers 11 8
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Trip information display 125
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SECTION 1 5

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It is not a malfunction even if the needle
of the engine coolant temperature gauge
returns to “C” when the ignition switch is
turned to the “START” position.
NOTICE
Do not remove the thermostat in
the engine cooling system as this
may cause the engine to overheat.
The thermostat is designed to con-
trol the flow of coolant to keep the
temperature of the engine within
the specified operating range.
 Do not continue driving with an
overheated engine. See ”If your ve-
hicle overheats” on page 230.
Engine oil pressure gauge
Idling
Normal
driving
The engine oil pressure gauge indicates
engine oil pressure when the ignition
switch is on. Check it while driving to
make sure the needle is in the proper
range.
If the engine oil pressure should stay be-
low the normal range, pull off the road to
a safe place and stop the engine immedi-
ately. Call a Toyota dealer or qualified
repair shop for assistance.
Engine oil pressure may not build up
when the engine oil level is too low. The
engine oil pressure gauge is not designed
to indicate oil level, and the engine oil
level must be checked using the level
dipstick. It is not a malfunction even if the needle
of the engine oil pressure gauge returns
to “L” when the ignition switch is turned
to the “START” position.
NOTICE
Do not drive the vehicle with the en-
gine oil pressure below the normal
range until the cause is fixed—it may
ruin the engine.

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(b) Driver’s Seat Belt Reminder Lightand Buzzer
This light and buzzer remind you to
buckle up the driver’s seat belt.
Once the ignition key is turned to ”ON” or
”START”, the reminder light flashes and
the buzzer sounds if the driver ’s seat belt
is not fastened. Unless the driver fastens
the belt, the light keeps on flashing and
the buzzer sounds 4 to 8 seconds.
(c) Front Passenger ’s Seat Belt Re- minder Light
This light remind you to buckle up the
front passenger ’s seat belt.
Once the ignition key is turned to ”ON” or
”START”, the reminder light flashes if a
passenger sits in the front passenger seat
and does not fasten the seat belt. Unless
the front passenger fastens the belt, the
light stays flashing.
If luggage or other load is placed on the
front passenger seat, depending on its
weight and how it is placed on the seat,
builtin sensors in the seat cushion may
detect the pressure, causing the reminder
light to come on. (d) Discharge Warning Light
This light warns that the battery is being
discharged.
If it comes on while you are driving, there
is a problem somewhere in the charging
system.
The engine ignition will continue to oper-
ate, however, until the battery is dis-
charged. Turn off the air conditioning,
blower, radio, etc., and drive directly to
the nearest Toyota dealer or repair shop.
NOTICE
Do not continue driving if the engine
drive belt is broken or loose.
(e) Engine Oil Replacement Reminder
Light
This light reminds you when to replace
the engine oil.
This light will come on when the ignition
switch is turned to ”ON”, and will go off
after about a few seconds. When you drive for about 8000 km (5000
miles) after engine oil replacement, this
light illuminates for about 3 seconds and
then flashes for about 12 seconds with
the ignition key is turned to ”ON” position.
If you continue driving without engine oil
replacement, and if the driving range ex-
ceeds 12000 km (7500 miles), the light
will come on after the ignition key is
turned to ”ON” position. The light will re-
main on thereafter.
If the light is flashing, we recommend that
you replace the engine oil at an early
opportunity depending on the driving and
road condition. If the light comes on, re-
place it as soon as possible.
You need to reset the light after the en-
gine oil replacement. Reset the light by
following the procedure below:
1. Turn the ignition key to the ”OFF” posi- tion
with the odometer reading shown.
(For details, see “Odometer and trip me-
ter” on page 117).
2. Turn the ignition key to the ”ON” posi- tion while holding down the ”ODO/
TRIP” knob.
Hold down the knob until the light goes
off. Before the light goes off, it illuminates
for 3 seconds, flashes for 2 seconds, illu-
minates for 1 second.

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”START”—Starter motor on. The key
will return to the ”ON” position when
released.
For starting tips, see page 210.
It is not a malfunction even if the needle
of the tachometer, fuel gauge, engine
coolant temperature gauge, engine oil
pressure gauge or voltmeter returns to
bottom position when the ignition switch is
turned to the “START” position.
”ON”—Engine on and all accessories
on.
This is the normal driving position.”ACC”—Accessories such as the radio
operate, but the engine is off.
If you leave the key in the ”ACC” or
”LOCK” position and open the driver’s
door, a buzzer will remind you to remove
the key.
”LOCK”—Engine is off and the steering
wheel is locked. The key can be re-
moved only at this position.
To turn the key from ”ACC” to the ”LOCK”
position, you must put the selector lever
in the ”P” position.
Once you remove the key, the engine im-
mobiliser system is automatically set. (See
”Engine immobiliser system” on page 12.)
When starting the engine, the key may
seem stuck at the ”LOCK” position. To
free it, first be sure the key is pushed all
the way in, and then rock the steering
wheel slightly while turning the key gently.
NOTICE
Do not leave the key in the ”ON”
position if the engine is not running.
The battery will discharge and the
electronic ignition system could be
damaged.
Ignition switch with steering
lock

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FUNCTIONS OF ENGINE OIL
Engine oil has the primary functions of
lubricating and cooling the inside of the
engine, and plays a major role in main-
taining the engine in proper working order.
ENGINE OIL CONSUMPTION
It is normal that an engine should con-
sume some engine oil during normal
engine operation. The causes of oil
consumption in a normal engine are as
follows.
Oil is used to lubricate pistons, piston
rings and cylinders. A thin film of oil
is left on the cylinder wall when a pis-
ton moves downwards in the cylinder.
High negative pressure generated when
the vehicle is decelerating sucks some
of this oil into the combustion chamber.
This oil as well as some part of the oil
film left on the cylinder wall is burned
by the high temperature combustion
gases during the combustion process.
Oil is also used to lubricate the stems
of the intake valves. Some of this oil
is sucked into the combustion chamber
together with the intake air and is
burned along with the fuel. High tem-
perature exhaust gases also burn the
oil used to lubricate the exhaust valve
stems.
The amount of engine oil consumed de-
pends on the viscosity of the oil, the
quality of the oil and the conditions the
vehicle is driven under.
More oil is consumed by highspeed driv-
ing and frequent acceleration and decel-
eration.
A new engine consumes more oil, since
its pistons, piston rings and cylinder walls
have not become conditioned.
When judging the amount of oil con-
sumption, note that the oil may become
diluted and make it difficult to judge
the true level accurately. As an example, if a vehicle is used for
repeated short trips, and consumes a nor-
mal amount of oil, the dipstick may not
show any drop in the oil level at all, even
after 1000 km (600 miles) or more. This
is because the oil is gradually becoming
diluted with fuel or moisture, making it
appear that the oil level has not changed.
The diluting ingredients evaporate out
when the vehicle is then driven at high
speeds, as on an expressway, making it
appear that oil is excessively consumed
after driving at high speeds.
IMPORTANCE OF ENGINE OIL LEVEL
CHECK
One of the most important points in prop-
er vehicle maintenance is to keep the en-
gine oil at the optimum level so that oil
function will not be impaired. Therefore, it
is essential that the oil level be checked
regularly. Toyota recommends that the oil
level be checked every time you refuel
the vehicle.
NOTICE
Failure to check the oil level regularly
could lead to serious engine trouble
due to insufficient oil.
Facts about engine oil
consumption

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Improving fuel economy is easy–just take
it easy. It will help make your vehicle last
longer, too. Here are some specific tips
on how to save money on both fuel and
repairs:
Keep your tires inflated at the cor-
rect pressure. Underinflation causes
tire wear and wastes fuel. See Section
72 for instructions.
Do not carry unneeded weight in
your vehicle. Excess weight puts a
heavier load on the engine, causing
greater fuel consumption.
Avoid lengthy warmup idling. Once
the engine is running smoothly, begin
driving—but gently. Remember, howev-
er, that on cold winter days this may
take a little longer.
Accelerate slowly and smoothly.
Avoid jackrabbit starts.
Avoid long engine idling. If you have
a long wait and you are not in traffic,
it is better to turn off the engine and
start again later.
Avoid engine over-revving. Use a
gear position suitable for the road on
which you are travelling.
Avoid continuous speeding up and
slowing down. Stopandgo driving
wastes fuel.
Avoid unnecessary stopping and
braking. Maintain a steady pace. Try
to time the traffic signals so you only
need to stop as little as possible or
take advantage of through streets to
avoid traffic lights. Keep a proper dis-
tance from other vehicles to avoid sud-
den braking. This will also reduce wear
on your brakes.
Avoid heavy traffic or traffic jams
whenever possible.
Do not rest your foot on the brake
pedal. This causes premature wear,
overheating and poor fuel economy.
Maintain a moderate speed on high-
ways. The faster you drive, the greater
the fuel consumption. By reducing your
speed, you will cut down on fuel con-
sumption.
Keep the front wheels in proper
alignment. Avoid hitting the curb and
slow down on rough roads. Improper
alignment not only causes faster tire
wear but also puts an extra load on
the engine, which, in turn, wastes fuel.
Keep the bottom of your vehicle free
from mud, etc. This not only lessens
weight but also helps prevent corro-
sion.
Keep your vehicle tunedup and in
top shape. A dirty air cleaner, improp-
er valve clearance, dirty plugs, dirty oil
and grease, brakes not adjusted, etc.
all lower engine performance and con-
tribute to poor fuel economy. For longer
life of all parts and lower operating
costs, keep all maintenance work on
schedule, and if you often drive under
severe conditions, see that your vehicle
receives more frequent maintenance.
(For scheduled maintenance informa-
tion, please refer to the ”Scheduled
Maintenance Guide” or ”Owner ’s Manu-
al Supplement”.)
How to save fuel and make
your vehicle last longer, too

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If the engine speed does not increase
when the accelerator pedal is de-
pressed, the electronic throttle control
system may be faulty. Move the vehicle
to a safe place by means of creeping
and call a Toyota dealer for assistance:1. Depress the brake pedal and shift to the ”D” position.
2. Gradually release the brake pedal, and the vehicle starts to move by creeping.
After arriving at a safe place, stop the
vehicle and call a Toyota dealer for
assistance.
CAUTION
The above method of moving the
vehicle is for emergency. Use it
only for moving minimum distances
to a safe place.
Be especially careful to prevent er-
roneous pedal operation.
If your vehicle overheats
If your engine coolant temperature
gauge indicates overheating, if you ex-
perience a loss of power, or if you hear
a loud knocking or pinging noise, the
engine has probably overheated. You
should follow this procedure...
1. Pull safely off the road, stop the ve- hicle and turn on your emergency
flashers. Put the transmission in ”P”
and apply the parking brake. Turn off
the air conditioning if it is being used.
2. If coolant or steam is boiling out of the radiator or reservoir, stop the engine.
Wait until the steam subsides before
opening the hood. If there is no coolant
boiling over or steam, leave the engine
running.
CAUTION
To help avoid personal injury, keep
the hood closed until there is no
steam. Escaping steam or coolant is
a sign of very high pressure.
3. Visually check to see if the enginedrive belt (fan belt) is broken or loose.
Look for obvious coolant leaks from the
radiator, hoses, and under the vehicle.
However, note that water draining from
the air conditioning is normal if it has
been used.
CAUTION
When the engine is running, keep
hands and clothing away from the
moving fan and engine drive belts.
4. If the engine drive belt is broken or thecoolant is leaking, stop the engine im-
mediately. Call a Toyota dealer for as-
sistance.
5. If the engine drive belt is O.K. and there are no obvious leaks, you may
help the engine cool down more quickly
by running it at about 1500 rpm for a
few minutes with the accelerator pedal
lightly depressed.
6. Check the coolant reservoir. If it is dry, add coolant to the reservoir while the
engine is running. Fill it about half full.
If you cannot incr ease the en-
gine speed