Engine TOYOTA YARIS 2012 Owners Manual

5
563
5-1. Essential information
When trouble arises
YARIS_F (including HV)_WE_52C79E
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably
needs adjustment or repair. Contact any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional as
soon as possible.
Visible symptoms
Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is normal.)
Flat-looking tires or uneven tire wear
High engine coolant temperature warning light flashes or
comes on
Except hybrid vehicle: Low engine coolant temperature indi-
cator comes on or does not come on continuously
Audible symptoms
Changes in exhaust sound
Excessive tire squeal when cornering
Strange noises related to the suspension system
Except hybrid vehicle: Pinging or other noises related to the
engine
Hybrid vehicle: Pinging or other noises related to the hybrid
system
Operational symptoms
Engine missing, stumbling or running roughly
Appreciable loss of power
Vehicle pulls heavily to one side when braking
Vehicle pulls heavily to one side when driving on a level road
Loss of brake effectiveness, spongy feeling, pedal almost
touches the floor

564
5-1. Essential information
YARIS_F (including HV)_WE_52C79E
Fuel pump shut off system (except hybrid vehicle [gasoline engine only])
Follow the procedure below to restart the engine after the system is
activated.
Vehicles without a smart entry & start system:
Turn the engine switch to the “ACC” or “LOCK” position.
Restart the engine.
Vehicles with a smart entry & start system:
Turn the “ENGINE START STOP” switch to ACCESSORY mode
or turn it off.
Restart the engine.
NOTICE
Before starting the engine
Inspect the ground under the vehicle.
If you find that fuel has leaked onto the ground, the fuel system has been
damaged and is in need of repair. Do not restart the engine.
To minimize the risk of fuel leakage when the engine stalls or when
an airbag inflates upon collision, the fuel pump shut off system
stops the supply of fuel to the engine.

566 5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52C79E
Stop the vehicle immediately.
The following warnings indicate the possibility of damage to the
vehicle that may lead to an accident. Immediately stop the vehicle
in a safe place and contact any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional.
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.
(Flashes or
comes on)High engine coolant temperature warning light
Indicates that the engine is overheating. (P. 635, 639)
• Flashes: Engine is overheating. Drive carefully.
• Comes on: Engine is overheated. Stop the vehicle.
Hybrid system warning light and warning buzzer
(hybrid vehicle)
Indicates a malfunction in the hybrid system.

568 5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52C79E
Have the vehicle inspected immediately.
Failure 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 any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional immedi-
ately.
To prevent the clutch from overheating
Do not use the accelerator pedal or starting assist system to hold the
vehicle on a hill.
On an uphill incline, observe the following whenever possible:
• Maintain a safe distance from the vehicle ahead and avoid unneces-
sary starting off and stopping.
• Avoid using E mode on an uphill slope. This will help to avoid unneces-
sary gear changes.
Warning lightWarning light/Details
Malfunction indicator lamp
Indicates a malfunction in:
• The hybrid system (hybrid vehicle);
• The hybrid transmission control system (if equipped);
• The electronic engine control system;
• The electronic throttle control system;
• The electronic Multidrive control system (if equipped);
• The electronic multi-mode manual transmission control
system (if equipped);
• The emission control system; or
• The DPF catalytic converter (if equipped).
SRS warning light
Indicates a malfunction in:
• The SRS airbag system; or
• The seat belt pretensioner system.

5
569 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79E
ABS warning light
Indicates a malfunction in:
• The ABS; or
• The brake assist system.
Electric power steering warning light (warning buzzer)
Indicates a malfunction in the EPS system.
Slip indicator light (if equipped)
Indicates a malfunction in:
• The VSC system;
• The TRC system; or
• Hill-start assist control.
(yellow
indicator)Brake system warning light (hybrid vehicle)
Indicates a malfunction in:
• The regenerative brake system; or
• The electronically controlled brake system.
(Flashes or
yellow
indicator)Cruise control indicator light (if equipped)
Indicates a malfunction in the cruise control system.
• Except hybrid vehicle: The light flashes to indicate a mal-
function.
• Hybrid vehicle: The light comes in yellow to indicate a mal-
function.
(Flashes)Stop & Start cancel indicator light (if equipped)
Indicates a malfunction in the Stop & Start system.
Fuel filter warning light (diesel engine only)
Indicate that the amount of accumulated water in the fuel
filter has reached the specified level. (P. 486)
(Flashes in
yellow for 15
seconds.)Smart entry & start system indicator light (If equipped)
Indicates a malfunction in the smart entry & start system.
Low traction battery indicator light (hybrid vehicle)
Indicates that the hybrid battery (traction battery) is low.
Warning lightWarning light/Details

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

572 5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52C79E
DPF system warning light
(diesel engine with a DPF
system)
• Indicates that the DPF cata-
lytic converter needs to be
cleaned due to repeated
short trips and/or low-speed
driving.
• Indicates that the amount of
accumulated deposits in the
DPF catalytic converter has
reached the specified level.To clean the DPF catalytic
converter, drive the vehicle
at a speed of 65 km/h (40
mph) or greater for 20 to 30
minutes as much as possi-
ble until the DPF system
warning light turns off.*
3
Do not turn off the engine as
much as possible until the
DPF system warning light
turns off.
If it is not possible to drive
the vehicle at speeds of 65
km/h (40 mph) or greater, or
the DPF system warning
light does not turn off even
after driving for more than
30 minutes, have the vehi-
cle inspected by any autho-
rized Toyota dealer or
repairer, or another duly
qualified and equipped pro-
fessional.
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