check engine light TOYOTA YARIS 2012 Owner's Manual

4Maintenance and care
445
YARIS_F (including HV)_WE_52C79E
4-1. Maintenance and care
Cleaning and protecting
the vehicle exterior ......... 446
Cleaning and protecting
the vehicle interior .......... 451
4-2. Maintenance
Maintenance
requirements................... 454
4-3. Do-it-yourself maintenance
Do-it-yourself service
precautions ..................... 457
Hood ................................. 462
Positioning a floor jack ...... 464
Engine compartment......... 467
12-volt battery
(hybrid vehicle) ............... 487
Tires .................................. 494
Tire inflation pressure ....... 498
Wheels .............................. 500
Air conditioning filter ......... 502
Wireless remote control/
electronic key battery...... 505
Checking and replacing
fuses ............................... 510
Light bulbs ........................ 535

570 5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52C79E
Follow the correction procedures.
After taking the specified steps to correct the suspected problem,
check that the warning light goes off.
Warning lightWarning light/DetailsCorrection procedure
Open door warning light
(warning buzzer)*
1
Indicates that a door is not
fully closed.Check that all the doors are
closed.
Low fuel level warning
light
Except hybrid vehicle
Gasoline engine:
Indicates that remaining fuel
is about 5.8 L (1.5 gal., 1.3
Imp. gal.) or less.
Diesel engine:
Indicates that remaining fuel
is about 6.4 L (1.7 gal., 1.4
Imp. gal.) or less.
Hybrid vehicle
Indicates that remaining fuel
is about 5.2 L (1.4 gal., 1.1
Imp. gal.) or less.Refuel the vehicle.
(On the instru-
ment cluster)Driver’s and front passen-
ger’s seat belt reminder
light (warning buzzer)*
2
Warns the driver and front
passenger to fasten their
seat belts.Fasten the seat belt.
(On the center
panel)Rear passengers’ seat
belt reminder lights
(warning buzzer)*
2
(if equipped)
Warns the rear passen-
gers to fasten their seat
belts.Fasten the seat belt.

5
571 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79E
Low engine oil level warn-
ing light (diesel engine
only)
Indicates that engine oil
level is low.Check the level of engine
oil, and add if necessary.
Hybrid system overheat
warning light and warning
buzzer (hybrid vehicle)
Indicates that the hybrid
system has overheated.
This light may come on
when driving under severe
operating conditions. (For
example, when driving up
a long steep hill.)Stop and check. (P. 639)
P position request indica-
tor light (hybrid vehicle)
An attempt was made to
start the hybrid systemShift the shift lever to P.
P position request indica-
tor light and warning
buzzer (hybrid vehicle)
• Indicates that the driver’s
door was opened with the
shift lever in N, D or B.
• Indicates that the hybrid
battery (traction battery)
power has dropped
because a long period of
time has elapsed after
shifting the shift lever to N.• Shift the shift lever to P.
• Shift the shift lever to P and
restart the hybrid system
when starting the vehicle.
Warning lightWarning light/DetailsCorrection procedure

5
573 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79E
(Flashes)Engine oil change
reminder light (diesel
engine only)
Indicates that the engine
oil is scheduled to be
changed.
• Vehicles without a DPF
system*
4:
Flashes approximately
35000 km (22000 miles)
after the engine oil is
changed. (The indicator
will not work properly
unless the oil maintenance
data has been reset).
• Vehicles with a DPF
system*
4:
Flashes approximately
14500 km (9000 miles)
after the engine oil is
changed. (P. 580) (The
indicator will not work
properly unless the oil
maintenance data has
been reset).Check the engine oil, and
change if necessary. After
changing the engine oil, the
oil change system should
be reset. (P. 476)
Warning lightWarning light/DetailsCorrection procedure

574 5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52C79E
*1: Open door warning buzzer:
A buzzer will sound if the vehicle reaches a speed of 5 km/h (3 mph) or
more with any door open.
*
2: Driver’s and passengers seat belt reminders:
The driver’s and passengers seat belt buzzer sounds to alert the driver and
passengers that their seat belt is not fastened. The buzzer sounds for 30
seconds after the vehicle has reached a speed of at least 20 km/h (12 mph).
Then, if the seat belt is still unfastened, the buzzer will sound in a different
tone for 90 more seconds.
*
3: The DPF system warning light may not turn off when the engine oil change
reminder light is on. In this event, have the vehicle inspected by any autho-
rized Toyota dealer or repairer, or another duly qualified and equipped pro-
fessional.
*
4: To determine whether or not your vehicle has a DPF system, contact any
authorized Toyota dealer or repairer, or another duly qualified and equipped
professional. (Comes on)Engine oil change
reminder light (diesel
engine only)
Indicates that the engine
oil should be changed.
• Vehicles without a DPF
system*
4:
Comes on approximately
40000 km (25000 miles)
after the engine oil is
changed (and the oil main-
tenance data has been
reset).
• Vehicles with a DPF
system*
4:
Comes on approximately
15000 km (9300 miles)
after the engine oil is
changed (and the oil main-
tenance data has been
reset).Check and change the
engine oil and oil filter by
any authorized Toyota
dealer or repairer, or
another duly qualified and
equipped professional. After
changing the engine oil, the
oil change system should
be reset. (P. 476)
Warning lightWarning light/DetailsCorrection procedure

5
575 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79E
Follow the correction procedures. (vehicles with a smart entry &
start system or push-button start system)
After taking the specified steps to correct the suspected problem,
check that the warning light goes off.
Interior
buzzerExterior
buzzerWarning
lightWarning light/DetailsCorrection
procedure
Continuous Continuous
(Flashes
in
yellow)Smart entry & start system
indicator light (vehicles
with a hybrid transmission
or a Multidrive)
Except hybrid vehicle
The electronic key was car-
ried outside the vehicle and
the driver’s door was
opened and closed while
any shift position other than
P was selected without turn-
ing off the “ENGINE START
STOP” switch.
Hybrid vehicle
The electronic key was car-
ried outside the vehicle and
the driver’s door was
opened and closed while
any shift position other than
P was selected without turn-
ing off the “POWER” switch.• Change the
shift position to
P.
• Bring the elec-
tronic key back
into the vehicle.

620 5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52C79ETouch the Toyota emblem side of
the electronic key to the
“POWER” switch.
The “POWER” switch will turn to
ON mode.
If any of the doors is opened or
closed while the key is being
touched to the switch, an alarm
will sound to indicate that the start
function cannot detect the elec-
tronic key.
When the smart entry & start system is deactivated in customization
setting, the “POWER” switch will turn to ACCESSORY mode. Modes
can be changed by pressing the “POWER” switch with the brake
pedal released. (The mode changes each time the switch is
pressed.)
Firmly depress the brake pedal and check that the smart entry
& start system indicator light (green) turns on.
Press the “POWER” switch.
In the event that the hybrid system still cannot be operated,
contact any authorized Toyota dealer or repairer, or another
duly qualified and equipped professional.
Starting the engine
Vehicles with a Multidrive
Ensure that the shift lever is in P and firmly depress the brake
pedal.

5
621 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79ETouch the Toyota emblem side of
the electronic key to the
“ENGINE START STOP” switch.
The “ENGINE START STOP”
switch will turn to IGNITION ON
mode.
When the smart entry & start system is deactivated in customization
setting, the “ENGINE START STOP” switch will turn to ACCESSORY
mode. Modes can be changed by pressing the “ENGINE START
STOP” switch with the brake pedal released. (The mode changes
each time the switch is pressed.)
Firmly depress the brake pedal and check that the smart entry
& start system indicator light (green) turns on.
Press the “ENGINE START STOP” switch.
In the event that the “ENGINE START STOP” switch still can-
not be operated, contact any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional.
Vehicles with a multi-mode manual transmission
Ensure that the shift lever is in N and firmly depress the brake
pedal.
Touch the Toyota emblem side of
the electronic key to the
“ENGINE START STOP” switch.
The “ENGINE START STOP”
switch will turn to IGNITION ON
mode.

622 5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52C79EWhen the smart entry & start system is deactivated in customization
setting, the “ENGINE START STOP” switch will turn to ACCESSORY
mode. Modes can be changed by pressing the “ENGINE START
STOP” switch with the brake pedal released. (The mode changes
each time the switch is pressed.)
Firmly depress the brake pedal and check that the smart entry
& start system indicator light (green) turns on.
Press the “ENGINE START STOP” switch.
In the event that the “ENGINE START STOP” switch still can-
not be operated, contact any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional.
Vehicles with a manual transmission
Ensure that the shift lever is in N and depress the clutch
pedal.
Touch the Toyota emblem side of
the electronic key to the
“ENGINE START STOP” switch.
The “ENGINE START STOP”
switch will turn to IGNITION ON
mode.
When the smart entry & start system is deactivated in customization
setting, the “ENGINE START STOP” switch will turn to ACCESSORY
mode. Modes can be changed by pressing the “ENGINE START
STOP” switch with the clutch pedal released. (The mode changes
each time the switch is pressed.)
Firmly depress the clutch pedal and check that the smart
entry & start system indicator light (green) turns on.
Press the “ENGINE START STOP” switch.
In the event that the “ENGINE START STOP” switch still can-
not be operated, contact any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional.

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