warning light TOYOTA PRIUS 2008 2.G Owner's Manual

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PRIUS_U_(L/O_0802)
5-2. Steps to take in an emergency
If a war ning light turns on or a warning buzzer sounds...
Stop the vehicle immediately. Continuing to drive the vehicle
may be dangerous.The following warning indicates a possible problem in the brake sys-
tem. Immediately stop the vehicle in a safe place and contact your
Toyota dealer.
*:Parking brake engaged warning buzzer:
A buzzer will sound if the vehicle is driven at a speed of approximately 3 mph
(5 km/h) or more.
Warning lightWarning light/Details

(U.S.A.)

(Canada)
Brake system warning light and warning buzzer* (red
indictor)
• Low brake fluid
• Malfunction in the brake system This light also comes on when the parking brake is not
released. If the light turns off after the parking brake is
fully released, the system is operating normally.
Calmly perform the following actions if any of the warning lights turn
on or flash. If a light turns on or flashes, but then turns off, this does
not necessarily indicate a malfunction in the system.

5
When trouble arises
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5-2. Steps to take in an emergency
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Stop the vehicle immediately.
The following warning indicates the possibility of damage to the vehi-
cle that may lead to an accident. Immediately stop the vehicle in a
safe place and contact your Toyota dealer.
Have the vehicle inspected by your Toyota dealer immediately.Failing to investigate the cause of the following warnings may lead to
the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by your Toyota dealer immediately.
Warning lightWarning light/Details
Charging system warning light Indicates a malfunction in the vehicle’s charging system.
Low engine oil pressure warning light Indicates that the engine oil pressure is too low.

*1Hybrid system warning light Indicates a malfunction in the hybrid system.
Warning lightWarning light/Details
Malfunction indicator lamp Malfunction in:
• The electronic hybrid system control system;
• The electronic throttle control system; or
• The transmission control system.
SRS warning light Malfunction in:
• The SRS airbag system;
• Front passenger occupant classification system; or
• The seat belt pretensioner system.

428 5-2. Steps to take in an emergency
PRIUS_U_(L/O_0802)
Warning lightWarning light/Details
Vehicle stability control system warning light (if
equipped)
Indicates a malfunction in the Enhanced VSC system.

*1
Automatic headlight leveling system warning light (if
equipped) Indicates a malfunction in the automatic headlight level-
ing system.

(U.S.A.)

(Canada)
ABS warning lightMalfunction in:
• The ABS; or
• The brake assist system.
Brake system warning light (yellow indicator) Malfunction in the electronically controlled brake sys-
tem.

*1
or
*1
Electric power steering system warning lightMalfunction in the EPS (Electric Power Steering).

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When trouble arises
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5-2. Steps to take in an emergency
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Have the malfunction repaired immediately.
After taking the specified steps to correct the suspected problem,
check that the warning light turns off.
Warning lightWarning light/DetailsCorrection procedure
Open door warning light
(warning buzzer)
*2
A door or a back door is
not fully closed.
Check that all doors and the
back door are closed.
Low fuel level warning
light Remaining fuel
(Approximately 3.0 gal.
[11.4 L, 2.5 Imp.gal.] or
less) Refuel the vehicle.
Driver’s seat belt
reminder light (warning
buzzer)
*3
Warns the driver to fasten
his/her seat belt. Fasten the seat belt.
Front passenger’s seat
belt reminder light
(warning buzzer)
*3
Warns the front passen-
ger to fasten his/her seat
belt. Fasten the seat belt.
Tire pressure warning
light
When the light comes on:
Low tire inflation pressure.
Adjust the tire inflation
pressure.
When the light stays on
after blinking for 1 minute:
Malfunction in the tire
pressure warning system. Have the system checked
by your Toyota dealer.

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*1:This warning light is displayed on the touch screen.
*2:Open door warning buzzer:

(U.S.A.)
Engine oil replacement
reminder light
Illuminates for about 3 sec-
onds and then flasher for
about 15 seconds:
Engine oil is scheduled to
be changed. Check and the engine oil,
and change if necessary.
Comes on and remains:
Engine oil should be
changed. Check and change the
engine oil.

*1
Hybrid battery warning
light
The hybrid battery voltage
drops when the transmis-
sion is left in “N” position. Push the “P” position
switch.
The hybrid battery is dis-
charged. If this light comes on with
the “READY” light on in this
case, have the system
checked by your Toyota
dealer.
High coolant temperature
warning light Indicates high engine cool-
ant temperature P. 456
Master warning light A buzzer sounds and the
warning light comes on
and flashes to indicate that
the master warning system
has detected a malfunc-
tion. Take appropriate action in
accordance with the mes-
sage displayed on the multi-
information display.
Warning lightWarning light/DetailsCorrection procedure

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5-2. Steps to take in an emergency
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*3:Driver’s and front passenger’s
seat belt reminder buzzer:
The driver’s and front passenger’s seat belts reminder sounds to alert the
driver and front passenger that his or her seat belt is not fastened. The
buzzer sounds intermittently for 10 seconds after the vehicle has reached a
speed of at lest 12 mph (20 km/h). Then, if the seat belt is still unfastened,
the buzzer will sound in a different tone for 20 more seconds.
Have the malfunction repaired immediately. (vehicles with smart
key system)
After taking the specified steps to correct the suspected problem,
check that the warning light turn off.
AlarmWarning lightDetailsCorrection procedure
Interior and
exterior alarm:
One beep
(sounds con-
tinuously)
The driver has
removed the smart key
from the vehicle while
the hybrid system is
not OFF and the shift
lever is in a position
other than “P”.Pressing the “P”
position switch
before removing the
smart key from the
vehicle and turning
the hybrid system
OFF.
Interior alarm:
One beep
Exterior alarm:
3 beeps The driver has
removed the smart key
from the vehicle while
the hybrid system is
not OFF and the shift
lever is in the “P” posi-
tion.
Turn the hybrid sys-
tem OFF and
remove the key
from the vehicle.
A passenger has
removed the smart key
from the vehicle while
the hybrid system is
not OFF. Check whether the
passenger leaving
the vehicle is carry-
ing the smart key.

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Exterior alarm:
One beep
(sounds for 2
seconds)The lock button has
been pressed while
the hybrid system is
not OFF and the shift
position is in “P”.
Turn the hybrid sys-
tem OFF.
Interior alarm:
One beep (for 5
seconds) The vehicle’s ID code
detection system has
judged that the smart
key is not present
when the “POWER”
switch is pressed.
Check that the
smart key is in the
vehicle and within
the detection area.
AlarmWarning
lightDetailsCorrection procedure

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5-2. Steps to take in an emergency
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■
If the malfunction indicator lamp comes on while driving
First check the following:
● Is your vehicle low on gas?
If it is, refuel the vehicle immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after taking several driving trips.
If the light does not go off even after several trips, contact your Toyota dealer
as soon as possible.
■ Power steering warning light
When the voltage is low or drops, the power steering warning light may
come on.
■ SRS warning light
This warning light system monitors the following:
● The airbag sensor assembly
● Front airbag sensors
● The curtain shield airbag sensors
● The side and curtain shield airbag sensor assemblies
● The driver’s seat position sensor
● Driver’s seat belt buckle switch
● The front passenger occupant classification ECU
● The pressure sensor
● The belt tension sensor
● “AIR BAG ON” and “AIR BA G OFF” indicator lights
● Front passenger’s seat belt buckle switch
● The inflators
● The warning light
● The interconnecting wiring and power sources

434 5-2. Steps to take in an emergency
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■Front passenger detect ion sensor and passenger seat belt reminder
If luggage is placed on the front passenger seat, the front passenger detec-
tion sensor may cause the warning light to flash, even if a passenger is not
sitting in the seat.
■
When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level.
Pushing the tire pressure warning reset switch should not turn off the tire
pressure warning light.
■The tire pressure warning light ma y turn on due to natural causes
The tire pressure warning light may turn on due to natural causes such
as natural air leaks or tire inflation pressure changes caused by temper-
ature. In this case, adjusting the ti re inflation pressure will turn off the
warning light.
■If the tire pressure warning system is inoperative
The tire pressure warning system may become inoperative in the follow-
ing conditions:
(When the condition becomes normal, the system will work properly.)
●If tires not equipped with tire pressure warning valves and transmit-
ters are used.
●If the ID code on the tire pressure warning valves and transmitters is
not registered.
●If the tire inflation pressure is more than 73 psi (500 kPa, 5.1 kgf/cm2
or bar).
The system may be disabled in the following conditions:
(When the condition becomes normal, the system will work properly.)
●If electronic devices or facilities using similar radio wave frequencies
are nearby.
●If a radio set at similar frequencies is in use in the vehicle.
●If a window tint that affects the radio wave signals is installed.
●If there is a lot of snow or ice on the vehicle, in particular around the
wheels or wheel housings.
●If non-genuine Toyota wheels are used.
●If tire chains are used.

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5-2. Steps to take in an emergency
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■If the tire pressure warning light comes on after blinking for 1
minute frequently
If the tire pressure warning light comes on after blinking for 1 minute fre-
quently when the “POWER” switch
is turned to ON mode, have it
checked by your Toyota dealer.
NOTICE
■Precaution when installing a different tire
When a tire of a different specification or maker is installed, the tire pres-
sure warning system may not operate properly.
CAUTION
■When the power steering warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, firmly
hold and operate it using more force than usual.
■
If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could
cause loss of vehicle control and result in death or serious injury. • Stop your vehicle in a safe place as soon as possible. Adjust thetire inflation pressure immediately.
• If the tire pressure warning light comes on even after tire inflation pressure adjustment, it is probable that you have a flat tire. Check
the tires. If the tire is flat, change to the spare tire and have the flat
tire repaired by the nearest Toyota dealer.
• Avoid abrupt maneuvering and brak ing. If the vehicle tires deterio-
rate, you could lose control of th e steering wheel or the brakes.
■If a blowout or sudden air loss should occur
The tire pressure warning system may not activate immediately.