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4397-3. Do-it-yourself maintenance
7
Maintenance and care
YARIS_HV_OM_Europe_OM52J66E
■Adding engine oil
If the oil level is below or near
the low level mark, add engine
oil of the same type as that
already in the engine.
Make sure to check the oil type and prepare the items needed
before adding oil.
Remove the oil filler cap by turning it counterclockwise.
Add engine oil slowly, checking the dipstick.
Install the oil filler cap by turning it clockwise.
■ Engine oil consumption
A certain amount of engine oil will be consumed while driving. In the following
situations, oil consumption may increase, and engine oil may need to be
refilled in between oil maintenance intervals.
● When the engine is new, for example directly after purchasing the vehicle or
after replacing the engine
● If low quality oil or oil of an inappropriate viscosity is used
● When driving at high engine speeds or with a heavy load, or when driving
while accelerating or decelerating frequently
● When leaving the engine idling for a long time, or when driving frequently
through heavy traffic
Engine oil selection P. 594
Oil quantity
(Low Full) 1.5 L (1.6 qt., 1.3 Imp.qt.)
Items Clean funnel
1
2
3
Page 440 of 632

4407-3. Do-it-yourself maintenance
YARIS_HV_OM_Europe_OM52J66E
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 retailer or Toyota authorized repairer, or any
reliable repairer, service station or auto parts store for information con-
cerning 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.
Page 518 of 632

5188-2. Steps to take in an emergency
YARIS_HV_OM_Europe_OM52J66E
*4
*5
Low engine oil pressure warning light
Indicates that the engine oil pressure is too low.
Immediately stop the vehicle in a safe place and con-
tact any authorized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer.
*4
(Red warning light flashers or comes on)
*5
High engine coolant temperature warning light
Indicates that the engine is overheating.
As the coolant temperature rises, it changes from flashing
to steady on.
P. 581
*4
Hybrid system warning light (warning buzzer)
Indicates a malfunction in the hybrid system.
Immediately stop the vehicle in a safe place and con-
tact any authorized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer.
Malfunction indicator lamp
Indicates a malfunction in:
• The hybrid system;
• The hybrid transmission control system;
• The electronic engine control system;
• The electronic throttle control system; or
• The emission control system.
Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system; or
• The seat belt pretensioner system.
Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
Warning lightWarning light/Details/Actions
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5348-2. Steps to take in an emergency
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■If “See owner’s manual” is shown
If “Hybrid system malfunction. Stop in a safe place. See owner’s
manual.” is shown, there may be a malfunction. Immediately have
the vehicle inspected by any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer.
■If “Maintenance required for Traction battery cooling parts.
See owner’s manual” is shown
The filter may be clogged, the air intake vent may be blocked or
there may be a gap in the duct.
If the air intake vent is dirty, refer to P. 420 for cleaning the air intake
vent.
If the message is being displayed and the air intake vent is not dirty,
have the vehicle inspected at any authorized Toyota retailer or Toy-
ota authorized repairer, or any reliable repairer.
■If “Charging system malfunction. Stop in a safe place. See
owner’s manual.” is shown
Indicates a malfunction in the vehicle’s charging system. Immedi-
ately stop the vehicle in a safe place and contact any authorized
Toyota retailer or Toyota authorized repairer, or any reliable
repairer. Continuing to drive the vehicle may be dangerous.
■If “Engine oil pressure low” is shown
Indicates that the engine oil pressure is too low. Immediately stop
the vehicle in a safe place and contact any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
Page 593 of 632
5939-1. Specifications
9
Vehicle specifications
YARIS_HV_OM_Europe_OM52J66E
■Oil capacity (Drain and refill — reference*)
*: The engine oil capacity is a reference quantity to be used when changing
the engine oil. Warm up the engine and turn off hybrid system, wait more
than 5 minutes, and check the oil level on the dipstick.
Hybrid battery (Traction battery)
Ty p eNickel-Metal hydride battery
Voltage7.2 V/module
Capacity6.5 Ah (3HR)
Quantity20 modules
Overall voltage144 V
Lubrication system
With filter 3.7 L (3.9 qt., 3.3 Imp.qt.)
Without filter 3.4 L (3.6 qt., 3.0 Imp.qt.)
Page 594 of 632

5949-1. Specifications
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■Engine oil selection
“Toyota Genuine Motor Oil” is used in your Toyota vehicle. Toyota
recommends the use of approved “Toyota Genuine Motor Oil”.
Another motor oil of matching quality can also be used.
Oil grade:
0W-20, 5W-30 and 10W-30:
API grade SL “Energy-Conserving”, SM “Energy-Conserving” or SN
“Resource-Conserving”; or ILSAC multigrade engine oil
15W-40:
API grade SL, SM or SN multigrade engine oil
Recommended viscosity (SAE):
SAE 0W-20 is filled into your
Toyota vehicle at manufactur-
ing, and the best choice for
good fuel economy and good
starting in cold weather.
If SAE 0W-20 oil is not avail-
able, SAE 5W-30 oil may be
used. However, it should be
replaced with SAE 0W-20 at the
next oil change.
If you use SAE 10W-30 or a
higher viscosity engine oil in
extremely low temperatures,
the engine may become difficult
to start, so SAE 0W-20 or
5W-30 engine oil is recom-
mended.
Temperature range anticipated
before next oil change.
Preferred
Page 595 of 632

5959-1. Specifications
9
Vehicle specifications
YARIS_HV_OM_Europe_OM52J66E
Oil viscosity (0W-20 is explained here as an example):
• The 0W in 0W-20 indicates the characteristic of the oil which
allows cold startability. Oils with a lower value before the W allow
for easier starting of the engine in cold weather.
• The 20 in 0W-20 indicates the viscosity characteristic of the oil
when the oil is at high temperature. An oil with a higher viscosity
(one with a higher value) may be better suited if the vehicle is
operated at high speeds, or under extreme load conditions.
How to read oil container labels:
Either or both API registered marks are added to some oil contain-
ers to help you select the oil you should use.
API Service Symbol
Top portion: “API SERVICE SN”
means the oil quality designa-
tion by American Petroleum
Institute (API).
Center portion: “SAE 0W-20”
means the SAE viscosity grade.
Lower portion: “Resource-Con-
serving” means that the oil has
fuel-saving and environmental
protection capabilities.
ILSAC Certification Mark
The International Lubricant Specification Advisory Committee (ILSAC)
Certification Mark is displayed on the front of the container.
1
2
Page 621 of 632

621Alphabetical index
YARIS_HV_OM_Europe_OM52J66E
Engine coolant ......................... 441
Capacity ................................ 596
Checking ............................... 441
Preparing and checking
before winter....................... 313
Engine coolant temperature
warning light .......................... 518
Engine oil.................................. 438
Capacity ................................ 593
Checking ............................... 438
Oil pressure warning light ..... 518
Oil pressure warning
messages ........................... 531
Preparing and checking
before winter....................... 313
Engine switch................... 216, 220
Auto power off function ......... 225
Changing power switch
positions ............................. 217
Changing the power switch
modes................................. 222
If your vehicle has to
be stopped
in an emergency ................. 507
Starting the hybrid
system ........................ 216, 220
EPS (Electric Power
Steering) ................................. 303
Function ................................ 303
Warning light ......................... 519
EV drive mode .......................... 229
EV indicator ................................ 88
Flat tire.............................. 537, 556
Floor mats .................................. 32
Fluid
Brake .................................... 597
Transmission ........................ 597
Washer ................................. 443
Fog lights ................................. 244
Replacing light bulbs..... 489, 502
Switch ................................... 244
Wattage ................................ 600
Follow me home system ......... 239
Front passenger’s seat belt
reminder light ........................ 521
Front position lights ................ 238
Light switch ........................... 238
Replacing light bulbs..... 492, 502
Wattage ................................ 600
Front seats ............................... 182
Adjustment ............................ 182
Cleaning................................ 419
Correct driving posture ........... 34
Head restraints ..................... 188
Seat heaters ......................... 396
F