2012 TOYOTA YARIS HYBRID warning light

578 5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52C79E
Once(Flashes
in yellow
for 15
sec-
onds.)Smart entry & start system
indicator light
Indicates that the electronic
key is not present when
attempting to start the
engine.Confirm the
location of the
electronic key.
9 times
(Flashes
in
yellow)Smart entry & start system
indicator light
An attempt was made to
drive when the regular key
was not inside the vehicle.Confirm that the
electronic key is
inside the vehi-
cle.
Once(Flashes
in yel-
low for
15 sec-
onds.)Smart entry & start system
indicator light
Indicates that the electronic
key battery is low.Replace the
battery.
(P. 505)
Once(Flashes
quickly
in green
for 15
sec-
onds.)Smart entry & start system
indicator light
Indicates that the steering
lock has not been released.Release the
steering lock.
(P. 234)
Interior
buzzerExterior
buzzerWarning
lightWarning light/DetailsCorrection
procedure

5
579 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79E
Once(Flashes
in yellow
for 30
sec-
onds.)Smart entry & start system
indicator light
Except hybrid vehicle
• When the doors were
unlocked with the mechan-
ical key and then the
“ENGINE START STOP”
switch was pressed, the
electronic key could not be
detected in the vehicle.
• The electronic key could
not be detected in the vehi-
cle even after the
“ENGINE START STOP”
switch was pressed two
consecutive times.
Hybrid vehicle
• When the doors were
unlocked with the mechan-
ical key and then the
“POWER” switch was
pressed, the electronic key
could not be detected in
the vehicle.
• The electronic key could
not be detected in the vehi-
cle even after the
“POWER” switch was
pressed two consecutive
times.Except hybrid
vehicle
Except vehi-
cles with a
manual trans-
mission: Touch
the electronic
key to the
“ENGINE
START STOP”
switch while
depressing the
brake pedal.
Vehicles with a
manual trans-
mission: Touch
the electronic
key to the
“ENGINE
START STOP”
switch while
depressing with
the clutch
pedal.
Hybrid vehicle
Touch the elec-
tronic key to the
“POWER”
switch while
depressing the
brake pedal.
Interior
buzzerExterior
buzzerWarning
lightWarning light/DetailsCorrection
procedure

580 5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52C79E
Passenger detection sensor and passenger seat belt reminder
If luggage is placed on a passenger seat, the passenger detection sensor
may cause the warning light to flash even if a passenger is not sitting in
the seat.
If a cushion is placed on the seat, the sensor may not detect a passen-
ger, and the warning light may not operate properly.
Electric power steering warning light (warning buzzer)
Except hybrid vehicle: When the battery charge becomes insufficient or the
voltage temporarily drops, the electric power steering system warning light
may come on and the warning buzzer may sound.
Hybrid vehicle: When the 12-volt battery charge becomes insufficient or the
voltage temporarily drops, the electric power steering system warning light
may come on and the warning buzzer may sound.
If the malfunction indicator lamp comes on while driving
For some models, the malfunction indicator lamp will come on if the fuel tank
becomes completely empty. If the fuel tank is empty, refuel the vehicle
immediately. The malfunction indicator lamp will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped profes-
sional as soon as possible.
If the engine oil change reminder light flashes (diesel engine with a
DPF system)
Repeated short trips and/or low-speed driving may cause the oil to degrade
sooner than usual, regardless of the actual distance driven. If this happens,
the engine oil change reminder light will flash.
Engine oil change reminder light comes on (diesel engine only)
Vehicles without a DPF system:
Replace the engine oil and oil filter when the engine oil change reminder
light does not come on even if you have driven over 40000 km (25000 miles)
after the engine oil was changed.
There is a possibility that the engine oil change reminder light has been illu-
minated when you have driven less than 40000 km (25000 miles) based on
a usage or driving condition.

5
581 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79E
Vehicles with a DPF system:
Replace the engine oil and oil filter when the engine oil change reminder
light does not come on even if you have driven over 15000 km (9300 miles)
after the engine oil was changed.
There is a possibility that the engine oil change reminder light has been illu-
minated when you have driven less than 15000 km (9300 miles) based on a
usage or driving condition.
CAUTION
When the electric power steering system warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, hold
firmly and operate using more force than usual.
When driving to clean the DPF catalytic converter
When driving, pay sufficient attention to weather, road conditions, terrain and
traffic conditions, and be sure to observe traffic laws and/or regulations. Fail-
ure to do so may cause an unexpected accident, resulting in death or seri-
ous injury.
NOTICE
If the fuel filter warning light comes on (diesel engine only)
Never drive the vehicle with the warning light on. Continued driving with
water accumulated in the fuel filter will damage the fuel injection pump.
When the DPF system warning light comes on (diesel engine with a
DPF system)
If the DPF system warning light is left on without performing cleaning, after
an additional 100 to 300 km (62 to 187 miles), the malfunction indicator lamp
may come on. If this happens, have the vehicle inspected by any authorized
Toyota dealer or repairer, or another duly qualified and equipped profes-
sional immediately.

5
635
5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79E
If your vehicle overheats (except hybrid vehicle)
If your engine overheats:
Stop the vehicle in a safe place and turn off the air condi-
tioning system.
Check to see if steam is coming out from under the hood.
If you see steam:
Stop the engine. Carefully lift the hood after the steam sub-
sides and then restart the engine.
If you do not see steam:
Leave the engine running and carefully lift the hood.
Check to see if the cooling fan is operating.
If the fan is operating:
Wait until the high engine coolant temperature warning light
goes off and then stop the engine.
If the fan is not operating:
Stop the engine immediately and call any authorized Toyota
dealer or repairer, or another duly qualified and equipped
professional.
After the engine has cooled down sufficiently, check the
engine coolant level and inspect the radiator core (radiator)
for any leaks.
Gasoline engine

5
637 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79E
Overheating
If you observe the following, your vehicle may be overheating:
The high engine coolant temperature warning light flashes or comes on
or a loss of power is experienced.
Steam comes out from under the hood.
CAUTION
To prevent an accident or injury when inspecting under the hood of
your vehicle
If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot, caus-
ing serious injuries such as burns.
Keep hands and clothing away from the fan and drive belt while the engine
is running.
Do not loosen the radiator cap, or the coolant reservoir cap while the
engine and radiator are hot.
Serious injury, such as burns, may result from hot coolant and steam
released under pressure.
Diesel engine
Have the vehicle inspected at the nearest authorized Toyota dealer
or repairer, or another duly qualified and equipped professional as
soon as possible.

5
639
5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79E
If your vehicle overheats (hybrid vehicle)
Correction procedures
If the high engine coolant temperature warning light comes on
or flashes
Stop the vehicle in a safe place and turn off the air condition-
ing system.
Check to see if steam is coming out from the engine area.
If you see steam:
Stop the hybrid system. Carefully lift the hood after the steam
subsides and then restart the hybrid system.
If you do not see steam:
Leave the hybrid system operating and carefully lift the hood.
Check to see if the cooling fan is operating.
If the fan is operating:
Wait until the high engine coolant temperature warning light
goes off and then stop the hybrid system.
If the fan is not operating:
Stop the hybrid system immediately and call any authorized
Toyota dealer or repairer, or another duly qualified and
equipped professional.
The following may indicate that your vehicle is overheating:
The high engine coolant temperature warning light comes on or
flashes:
The engine may be overheating.
If the hybrid system overheat warning light comes on:
The power control unit may be overheating.
Follow the correction procedure as described below.

640 5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52C79EAfter the hybrid system has
cooled down sufficiently, check
the engine coolant level and
inspect the cooling system for
leaks.
Add engine coolant if necessary.
Water can be used in an emer-
gency if engine coolant is unavail-
able. (P. 667)
Have the vehicle inspected at the nearest authorized Toyota dealer or
repairer, or another duly qualified and equipped professional as soon
as possible.
If the hybrid system overheat warning light comes on
Stop the vehicle in a safe place and turn off the air condition-
ing system.
Leave the hybrid system operating and carefully lift the hood.