service TOYOTA PRIUS 2003 1.G User Guide

88
OPERATION OF INSTRUMENTS AND
CONTROLS
43.Gauges, Meters and Service reminder indicators
Fuel gauge89
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Coolant temperature indicator and warning lights s90. . . . . . . . . . . . . .
Odometer and two trip meters 91
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km/h or MPH button 92
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. . . . . .
Service reminder indicators and warning buzzers 93
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SECTION 2– 4

90
24p013
At the first blinking of the light, the master
warning light in the instrument cluster
comes on and the message appears on
the multiinformation display to remind the
driver to fill fuel.
24p010a
The fuel system malfunctions in the fol-
lowing cases, so contact your Toyota
dealer.
All the segments blink.
The “E” mark and the segments indi-
cating remaining fuel blink.
24p003b
High coolant temperature
warning light in red
Low coolant temperature
indicator light in blue
The indicator and warning lights indi-
cate the coolant temperature when the
ignition switch is on. The hybrid sys-
tem operating temperature will vary
with changes in weather and hybrid
system load.
The red high coolant temperature warning
light will come on when the ignition key
is turned to the “ON” position. After a few
seconds, the light will go off.
If your coolant temperature is cool with
the ignition switch on, the blue low cool-
ant temperature indicator light comes on.
If it keeps lighting on with the hybrid sys-
tem fully warmed, contact your Toyota
dealer as soon as possible to service the
vehicle.
Coolant temperature indicator
an d warn in g lig h t s45.

93
If the indicator or buzzer comes on...Do this.
(a)or
(indicator and buzzer)If parking brake is off, stop immediately and contact Toyota dealer.
(b)
(indicator and buzzer)
Fasten driver ’s seat belt.
(c)Fasten front passenger ’s seat belt.
(d)Take vehicle to Toyota dealer.
(e)Take vehicle to Toyota dealer.
(f)See multiinformation display.
(g)Drive without hard acceleration.
Service reminder indicators and warning buzzers48.

96
(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 Reminder Light
This light reminds 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 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 auxiliary battery
is being discharged.
If it comes on while you are driving, there
is a problem somewhere in the charging
system.
The hybrid system will continue to oper-
ate, however, until the auxiliary battery is
discharged. Turn off the air conditioning,
blower, radio, etc., and drive directly to
the nearest Toyota dealer or repair shop.
(e) Malfunction Indicator Lamp
This lamp comes on when the ignition
key is turned to the “ON” position and
goes off after the engine starts. This
means that the warning light system is
operating properly.
If the lamp remains on or the lamp
comes on while driving, first check the
following:
Empty fuel tank
If the fuel tank is empty, refuel immedi-
ately.
This case is a temporary malfunction. The
malfunction indicator lamp will go off after
taking several driving trips.
If the lamp will not go off even after
several trips, contact your Toyota deal-
er as soon as possible.
There is a problem somewhere in the
hybrid system or warning light system
itself.
Contact your Toyota dealer as soon as
possible to service the vehicle.

97
Emissions inspection and maintenance
(I/M) programs
Your vehicle may not pass a state emis-
sion inspection if the malfunction indicator
lamp remains on. Contact your Toyota
dealer to check your vehicle’s emission
control system and OBD (OnBoard Diag-
nostics) system before taking your vehicle
for the inspection.
For details, see “Emissions inspection and
maintenance (I/M) programs” on page 204
in Section 7.
(f) Master Warning Light
()
If the master warning light comes on, the
warning light for the faulty system is high-
lighted or the message such as “When
you park your car, make sure you shift to
Park P.” and “The batteries will not charge
if the shifter is in N” appears on the mul-
tiinformation display. (See “Service re-
minder indicators and warning buzzers—
—Multiinformation display” on page 100
in this section or “Precautions for use” on
page 12 in Section 12 or “Fuel gauge”
on page 89 in Section 24 for instruc-
tions.)(g) Output Control Warning Light
()
This light comes on when the ignition
switch is on. It goes off when the electric
motor is ready to run.
The warning light comes on when the hy-
brid vehicle battery temperature is low or
high, or the hybrid vehicle battery capacity
is decreased with the selector lever at “R”
during driving. If the light comes on, the
power will be limited. Drive your vehicle
without hard acceleration.
(h) Low Engine Oil Pressure Warning
Light
This light warns that the engine oil pres-
sure is too low.
If it flickers or stays on while you are
driving, pull off the road to a safe place
and stop the engine immediately. Call a
Toyota dealer or qualified repair shop for
assistance.
The light may occasionally flicker when
the engine is idling or it may come on
briefly after a hard stop. There is no
cause for concern if it then goes out when
the engine is accelerated slightly.
The light may come on when the oil level
is extremely low. It is not designed to
indicate low oil level, and the oil level
must be checked using the level dipstick.NOTICE
Do not drive the vehicle with the
warning light on—even for one block.
It may ruin the engine.
(i) “ABS” Warning Light
The light comes on when the ignition key
is turned to the “ON” position. If the anti
lock brake system works properly, the
light turns off after a few seconds. There-
after if the system malfunctions, the light
comes on again.
When the “ABS” warning light is on (and
the brake system warning light is off), the
antilock brake system does not operate,
but the brake system still operates con-
ventionally.
When the “ABS” warning light is on (and
the brake system warning light is off), the
antilock brake system does not operate
so that the wheels could lock up during
a sudden braking or braking on slippery
road surfaces.
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 so
service the vehicle.

98
The light does not come on when the
ignition key is turned to the “ON” posi-
tion, or remains on.
The light comes on while you are driv-
ing.
A warning light turning on briefly during
operation does not indicate a problem.
CAUTION
If the “ABS” warning light remains on
together with the brake system warn-
ing light, immediately stop your ve-
hicle at a safe place and contact your
Toyota dealer.
In this case, not only the antilock
brake system will fail but also the
vehicle will become extremely unsta-
ble during braking.
Either of the following conditions may
occur, but does not indicate the mal-
function:
The light may stay on for about 60
seconds after the ignition key is turned
to the “ON” position. It is normal if it
turns off after a while.
Depressing the brake pedal repeatedly
may turn on the light. It is normal if
it turns off after a few seconds.
(j) SRS Warning Light
This light will come on when the igni-
tion key is turned to the “ACC” or
“ON” position. After about 6 seconds,
the light will go off. This means the
system of the airbag and front seat belt
pretensioners are operating properly.
The warning light system monitors the air-
bag sensor assembly, front airbag sen-
sors, side airbag sensors, front seat belt
pretensioner assemblies, warning light, in-
terconnecting wiring and power sources.
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 when the
ignition key is turn to the “ACC” or
“ON” position or remains on.
The light comes on or flashes while
driving. (k) Open Door Warning Light
This light remains on until all the doors
are completely closed.
(l) Low Fuel Level Indicator Light
This light blinks when the fuel level in the
tank becomes very low. Fill up the tank
as soon as possible.
At the first blinking of the light, the mes-
sage appears on the display to remind the
driver to fill fuel.
Contact your Toyota dealer in the fol-
lowing cases:
All the segments blink.
The “E” mark and the segments indi-
cating remaining fuel blink.
(m) High Coolant Temperature Warning Light
The light operates to warn that the hybrid
system is almost over heating.
The light will come on when the ignition
key is turned to the “ON” position. After
a few seconds, the light will go off.
If it comes on while you are driving, stop
the vehicle and check your hybrid system.
For detailed instructions, see “If your ve-
hicle overheats” on page 176 in Section
5.

99
NOTICE
Continued driving with the light on
could result in the overheating of hy-
brid system.
(n) Key Reminder Buzzer
This buzzer reminds you to remove the
key when you open the driver ’s door with
the ignition key in the “ACC” or “LOCK”
position.
(o) Shift position reminder buzzer
This buzzer will sound if the driver ’s door
is opened in the following conditions:
The hybrid system is on.
The parking brake is applied.
The selector lever is in a position other
than “P”.CHECKING SERVICE REMINDER INDICA-
TORS (except the low fuel level indica-
tor light)
1. Apply the parking brake.
2. Open one of the doors. The open door warning light should
come on.
3. Close the door. The open door warning light should go
off.
4. Turn the ignition key to “ACC”. The SRS warning light should come on.
It goes off after about 6 seconds.
5. Turn the ignition key to “START”. At this time, all the bulbs are checked in
selfdiagnosis mode.
All the service reminder indicators ex-
cept the open door warning light and
SRS warning light should come on. The
“ABS” warning light goes off after a
few seconds. There may be the case that the “ABS”
warning light stays on for about 60 sec-
onds after the ignition key is turned to the
“ON” position. It is normal if it goes out
after a while.
If any service reminder indicator or warn-
ing buzzer does not function as described
above, have it checked by your Toyota
dealer as soon as possible.

139
3. Powerful cooling and dehumidifying
If the air conditioning does not work well
with the “A/C” button on, push the “MAX”
button. To cancel the “MAX” mode, push
the “MAX” button again. To turn off the air
conditioning, push the “A/C” button.
With the “MAX” button on, the gasoline
engine is frequently used.
The air conditioning may not turn on with
the selector lever in “N” position because
the gasoline engine cannot start.
If the “A/C” button indicator flashes, there
is a problem in the air conditioning system
and the air conditioning automatically
shuts off. If this happens, take your ve-
hicle to your Toyota dealer for service. For economical and environmentfriend-
ly use
Usually, use the air conditioning with the
“A/C” button on (economical and environ-
mentfriendly cooling).
In this mode the gasoline engine starts
and stops automatically and good fuel
economy driving is achieved.
To use the air conditioning in economi-
cal and environmentfriendly way, we
recommend the following setting:
1. Lower the setting temperature if you feel a little hot with the “A/C” button
on.
2. If you feel still hot with the “A/C” but- ton on, push the “MAX” button also.
After the compartment cools, turn off
the “MAX” mode only.

159
30p002a
Vehicle sold in U.S.A.
30p007a
Vehicle sold in Canada
“ABS” warning light
The light comes on when the ignition
key is turned to the “ON” position. If
the antilock brake system works prop-
erly, the light turns off after a few sec-
onds. Thereafter, if the system malfunc-
tions, the light comes on again.
When the “ABS” warning light is on (and
the brake system warning light is off), the
antilock brake system does not operate,
but the brake system still operates con-
ventionally.
When the “ABS” warning light is on (and
the brake system warning light is off), the
antilock brake system does not operate
so that the wheels could lock up during
a sudden braking or braking on slippery
road surfaces.
If either of the following conditions oc-
curs, this indicates a malfunction some-
where 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 when the
ignition key is turned to the “ON” posi-
tion, or remains on.
The light comes on while you are driv-
ing.A warning light turning on briefly during
operation does not indicate a problem.
CAUTION
If the “ABS” warning light remains on
together with the brake system warn-
ing light, immediately stop your ve-
hicle at a safe place and contact your
Toyota dealer.
In this case, not only the antilock
brake system will fail but also the
vehicle will become extremely unsta-
ble during braking.
Either of the following conditions may
occur, but does not indicate the mal-
function:
The light may stay on for about 60
seconds after the ignition key is turned
to the “ON” position. It is normal if it
turns off after a while.
Depressing the brake pedal repeatedly
may turn on the light. It is normal if
it turns off after a few seconds.

172
Before making these checks, make sure
you have followed the correct starting
procedure given in ”How to start the
hybrid system” on page 166 in Section 4
and that you have sufficient fuel. Also
check whether the other keys will start the
hybrid system. If they work, your key may
be broken. Have the key checked at your
Toyota dealer. If none of your keys work,
the hybrid vehicle immobiliser system is
possibly broken. Call your Toyota dealer.
(See ”Keys” on page 18 in Section 21.)
If the instrument cluster dims or the
instrument cluster display turns off
with the ignition switch on—1. Check that the auxiliary battery termi- nals are tight and clean.
2. If the auxiliary battery terminals are O.K., the auxiliary battery is dis-
charged. You may try jump starting.
See “(b) Jump starting” for further in-
structions.
NOTICE
Hybrid vehicles cannot be push
started.
If the instrument cluster is shown in
appropriate brightness with the ignition
switch turned to on—
The hybrid vehicle system is suspected to
be faulty. Contact your Toyota dealer. If the auxiliary battery is discharged,
the hybrid system can be started by
jump starting. Depending on the the ve-
hicle condition, the engine may not
start.
To avoid serious personal injury and
damage to your vehicle which might re-
sult from battery explosion, acid burns,
electrical burns, or damaged electronic
components, these instructions must be
followed precisely.
If you are unsure about how to follow this
procedure, we strongly recommend that
you seek the help of a competent qualified
technician or towing service.
If your vehicle will not start—
(a) Simple checks129.
(b) Jump starting