2003 TOYOTA PRIUS brake

83
23p001a
HEADLIGHTS
To turn on the following lights: Twist
the headlight/turn signal lever knob.
Position
1—Parking, tail, license plate,
side marker and instrument panel lights
Position
2—Headlights and all of the
above
Vehicles sold in U.S.A.: When the head-
lights are on, the headlight indicator lights
up in the instrument cluster.
Vehicles sold in Canada: When the tail
lights are on, the tail light indicator lights
up in the instrument cluster. The lights automatically turn off when the
driver ’s door is opened with the ignition
turned off. To turn them on again, turn the
key to the “ON” position or actuate the
headlight switch. If you are going to park
for over one week, make sure the head-
light switch is off.
When the headlight switch is turned to the
first or second clickstop, the brightness of
the instrument cluster will be reduced
slightly unless the instrument panel light
control dial is turned fully on.
NOTICE
To prevent the battery from being dis-
charged, do not leave the lights on
longer than necessary when the hy-
brid system is not running.
Daytime running light system
The headlights turn on at reduced intensi-
ty when the parking brake is released with
the hybrid system started, even with the
light switch in the ”OFF” position. They
will not go off until the ignition switch is
turned off.
To turn on the other exterior lights and
instrument panel lights, twist the knob to
the position 1.
Twist the knob to the position 2 to turn
the headlights to full intensity for driving
at night.
36.Headlights and turn signals

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.

94
If the indicator or buzzer comes on...Do this.
(h)Stop and check.
(i)orTake vehicle to Toyota dealer. If brake system warning light is also on, stop immedi-
ately and contact Toyota dealer.
(j)Take vehicle to Toyota dealer immediately.
(k)Close all doors.
(l)Fill up tank.
(m)
(in red)
Stop and check.
(n)Key reminder buzzerRemove key.
(o)Shift position
reminder buzzerPut the selector lever in “P” position.

95
(a) Brake System Warning Light andBuzzer
This light comes on in the following cases
when the ignition key is in the “ON” posi-
tion.
When the parking brake is applied...
This light comes on for a few seconds
when the ignition key is turned to the
“ON” position even after the parking brake
is released.
When the brake fluid level is low...
CAUTION
It is dangerous to continue driving
normally when the brake fluid level is
low.
When the regenerative brake system
is fails...
When the hydraulic brake booster
fails...
If the hydraulic booster causes a problem
resulting in poor braking performance, the
warning light comes on and buzzer sounds
continuously. Have your vehicle checked at your
Toyota dealer in the following cases:
The light does not come on even if the
parking brake is applied when the igni-
tion key is in the “ON” position.
The light does not come on even if the
ignition key is turned on with the park-
ing brake released.
A warning light turning on briefly during
operation does not indicate a problem.
CAUTION
If any of the following conditions oc-
curs, immediately stop your vehicle at
a safe place and contact your Toyota
dealer.
The light does not turn off even
after the parking brake is released
while the hybrid system is running.
The warning buzzer comes on to-
gether with the warning light.
In either case, this can indicate that
the brakes may not work properly and
your stopping distance will become
longer. Depress the brake pedal firmly
and bring the vehicle to an immediate
stop.
The brake system warning light re-
mains on together with the “ABS”
warning light.
In this case, not only the antilock
brake system will fail but also the
vehicle will become extremely unsta-
ble during braking.
Any of the following conditions may oc-
cur, but do not indicate the malfunc-
tion:
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 warning light and
buzzer. It is normal if the light turns off
and the buzzer stops sounding after a
few seconds.
You may hear a small sound in the
engine compartment after the hybrid
system is started or the brake p edal is
depressed repeatedly. This is a pump
pulsating sound of the brake system,
and it is not a malfunction.

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.

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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.

104
OPERATION OF INSTRUMENTS AND
CONTROLS
50.Ignition switch, Transmission and Parking brake
Ignition switch with steering lock105
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Hybrid transaxlee 106
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Parking brake 109
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Cruise control 11 0
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SECTION 2– 5