2015 TOYOTA YARIS HATCHBACK check engine

3657-3. Do-it-yourself maintenance
7
Maintenance and care
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*: 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.
WARNING
■ Used engine oil
● Used engine oil contains potentially harmful contaminants which may
cause skin disorders such as inflammation and skin cancer, so care
should be taken to avoid prolonged and repeated contact. To remove used
engine oil from your skin, wash thoroughly with soap and water.
● Dispose of used oil and filters only in a safe and acceptable manner. Do
not dispose of used oil and filters in household trash, in sewers or onto the
ground.
Call any authorized Toyota dealer or repairer, or another duly qualified and
equipped professional, service station or auto parts store for information
concerning recycling or disposal.
● Do not leave used engine oil within the reach of children.
NOTICE
■To prevent serious engine damage
Check the oil level on a regular basis.
■ When replacing the engine oil
● Be careful not to spill engine oil on the vehicle components.
● Avoid overfilling, or the engine could be damaged.
● Check the oil level on the dipstick every time you refill the vehicle.
● Be sure the engine oil filler cap is properly tightened.
■ Engine oil (vehicles with a DPF system*)
Using an engine oil other than ACEA C2 may damage the catalytic con-
verter.

3667-3. Do-it-yourself maintenance
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The coolant level is satisfactory if it is between the “FULL” and “LOW”
lines on the reservoir when the engine is cold.
Reservoir cap
“FULL” line
“LOW” line
If the level is on or below the “LOW” line, add coolant up to the “FULL”
line. ( P. 485)
■Coolant selection
Only use “Toyota Super Long Life Coolant” or a similar high quality ethylene
glycol based non-silicate, non-amine, non- nitrite, and non-borate coolant with
long-life hybrid organic acid technology.
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deion-
ized water. (Minimum temperature: -35 C [-31F])
For more details about coolant, contact any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional.
■ If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine coolant reservoir caps, drain cock
and water pump.
If you cannot find a leak, have any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional test the cap and check for
leaks in the cooling system.
Engine coolant
Gasoline engineDiesel engine
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3677-3. Do-it-yourself maintenance
7
Maintenance and care
YARIS_F_WE_52G04E
Check the radiator, condenser and intercooler and clear away any for-
eign objects.
If any of the above parts is extremely dirty or you are not sure of their
condition, have your vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and equipped profes-
sional.
WARNING
■ When the engine is hot
Do not remove the radiator cap (gasoline engine), or the engine coolant res-
ervoir cap (diesel engine).
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing serious injuries, such as burns.
NOTICE
■ When adding coolant
Coolant is neither plain water nor stra ight antifreeze. The correct mixture of
water and antifreeze must be used to provide proper lubrication, corrosion
protection and cooling. Be sure to read the antifreeze or coolant label.
■ If you spill coolant
Be sure to wash it off with water to prevent it from damaging parts or paint.
Radiator, condenser and intercooler
WARNING
■ When the engine is hot
Do not touch the radiator, condenser or intercooler as they may be hot and
cause serious injuries, such as burns.

3977-3. Do-it-yourself maintenance
7
Maintenance and care
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Checking and replacing fuses
Turn the engine switch to the “LOCK” position (vehicles without a
smart entry & start system) or off (vehicles with a smart entry & start
system).
Open the fuse box cover.
Engine compartment: type A and B fuse boxes
Type A fuse box
Push the tab in and lift the lid off.
Type B fuse box
Push the tab in and lift the lid off.
If any of the electrical components do not operate, a fuse may
have blown. If this happens, check and replace the fuses as nec-
essary.
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4358-2. Steps to take in an emergency
8
When trouble arises
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(Flashes in yellow for 15 seconds.)
Smart entry & start system indicator*2
Indicates a malfunction in the smart entry & start system.
 Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional.
Open door warning light (warning buzzer)*3
Indicates that one or more of the doors is not fully closed.
 Check that all the side doors and back door are
closed.
Low fuel level warning light
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.
 Refuel the vehicle.
Driver’s and front passenger’s seat belt reminder light
(warning buzzer)*4
Warns the driver and front passenger to fasten their seat
belts.
 Fasten the seat belt.
If the passenger’s seat is occupied, the front passen-
ger’s seat belt also needs to be fastened to make the
warning light (warning buzzer) turn off.
(On the center panel)
Rear passengers’ seat belt reminder lights
(warning buzzer)*2, 4
Warns the rear passengers to fasten their seat belts.
 Fasten the seat belt.
Tire pressure warning light*2
When the light comes on: Low tire inflation pressure such
as
• Natural causes ( P. 440)
• Flat tire ( P. 445, 460)
 Adjust the tire inflation pressure to the specified
level.
The light will turn off after a few minutes. In case the
light does not turn off even if the tire inflation pres-
sure is adjusted, have the system checked by any
authorized Toyota dealer or repairer, or another duly
qualified and equipped professional.
Warning lightWarning light/Details/Actions

4368-2. Steps to take in an emergency
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Low engine oil level warning light (diesel engine only)
Indicates that engine oil level is low.
 Check the level of engine oil, and add if necessary.
DPF system warning light (diesel engine with a DPF
system)
• Indicates that the DPF catalytic 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 possible until the DPF system
warning light turns off.*5
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 vehicle inspected by any autho-
rized Toyota dealer or repairer, or another duly quali-
fied and equipped professional.
Warning lightWarning light/Details/Actions

4378-2. Steps to take in an emergency
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When trouble arises
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*1: Parking brake engaged warning buzzer:
The buzzer sounds to indicate that the parking brake is still engaged (with
the vehicle having reached a speed of 5 km/h [3 mph]).
*2: If equipped
*3: 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.
Engine oil change reminder light (diesel engine only)
When the light flashes:
Indicates that the engine oil is scheduled to be changed.
• Vehicles without a DPF system*6:
Flashes approximately 35000 km (22000 miles) after the
engine oil is changed. (The indicator will not work prop-
erly unless the oil maintenance data has been reset).
• Vehicles with a DPF system*6:
Flashes approximately 14500 km (9000 miles) after the
engine oil is changed. ( P. 439) (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. 364)
When the light comes on:
Indicates that the engine oil should be changed.
• Vehicles without a DPF system*6:
Comes on approximately 40000 km (25000 miles) after
the engine oil is changed (and the oil maintenance data
has been reset).
• Vehicles with a DPF system*6:
Comes on approximately 15000 km (9300 miles) after
the engine oil is changed (and the oil maintenance 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 chan ge system should be reset.
( P. 364)
Warning lightWarning light/Details/Actions

4398-2. Steps to take in an emergency
8
When trouble arises
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■ If the engine oil change reminder light flashes (diesel engine with a DPF
system)
Repeated short trips and/or low-speed dr iving 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 illumi-
nated when you have driven less than 40000 km (25000 miles) based on a
usage or driving condition.
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 illumi-
nated when you have driven less than 15000 km (9300 miles) based on a
usage or driving condition.
■ When the tire pressure warning light comes on (vehicles with a tire pres-
sure warning system)
Inspect the appearance of the tire to check that the tire is not punctured.
If the tire is punctured: P. 445, 460
If the tire is not punctured:
Carry out the following procedure after the tire temperature has lowered suffi-
ciently.
● Check the tire inflation pressure and adjust to the appropriate level.
● If the warning light does not go out even after several minutes, check that
the tire inflation pressure is at the specified level and carry out initialization.
The warning light may come on again if the above operations are conducted
without first allowing the tire temperature to lower sufficiently.