2021 TOYOTA YARIS CROSS engine oil

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6-3. Do-it-yourself maintenance
Maintenance and care
WARNING
●Keep hands, clothing and tools away from the moving fan.
●Be careful not to touch the engine, power control unit, radiator, exhaust
manifold, etc. right after driving as they may be hot. Oil and other flu-ids may also be hot.
●Do not leave anything that may burn easily, such as paper and
rags, in the engine compartment.
●Do not smoke, cause sparks or
expose an open flame to fuel or 12- volt battery. Fuel and 12-volt battery fumes are flammable.
●Be extremely cautious when work-ing on the 12-volt battery. It con-
tains poisonous and corrosive sulfuric acid.
●Take care because brake fluid can harm your hands or eyes and dam-age painted surfaces. If fluid gets
on your hands or in your eyes, flush the affected area with clean water immediately.
If you still experience discomfort, consult a doctor.
■When working near the electric cooling fan or radiator grille
Be sure the power switch is OFF.
With the power switch in ON, the electric cooling fan may automatically start to run if the air conditioning is on
and/or the coolant temperature is high. ( P.393)
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc.
from getting in your eyes.
NOTICE
■If you remove the air cleaner fil- ter
Driving with the air cleaner filter removed may cause excessive engine wear due to dirt in the air.
■If the fluid level is low or high
It is normal for the brake fluid level to
go down slightly as the brake pads wear or when the fluid level in the accumulator is high.
If the reservoir needs frequent refill- ing, it may indicate a serious problem.

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6-3. Do-it-yourself maintenance
Maintenance and care
Washer fluid tank (P.393)
Fuse boxes ( P.418)
Power control unit coolant reservoir ( P.391)
Engine oil filler cap ( P.390)
Engine oil level dipstick ( P.390)
Engine coolant reservoir ( P. 3 9 1 )
Radiator ( P.393)
Condenser ( P.393)
Electric cooling fan
■12-volt battery
 P. 3 9 4
With the engine at operating tem-
Engine compartment
Components
Checking and adding the
engine oil

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6-3. Do-it-yourself maintenance
perature and turned off, check the
oil level on the dipstick.
■Checking the engine oil
1 Park the vehicle on level
ground. After warming up the
engine and turning off the hybrid
system, wait more than 5 min-
utes for the oil to drain back into
the bottom of the engine.
2 Holding a rag under the end,
pull the dipstick out.
3 Wipe the dipstick clean.
4 Reinsert the dipstick fully.
5 Holding a rag under the end,
pull the dipstick out and check
the oil level.
Low
Normal
Excessive
The shape of the dipstick may differ
depending on the type of vehicle or engine.
6 Wipe the dipstick and reinsert it
fully.
■Checking the oil type and pre-
paring the item needed
Make sure to check the oil type and
prepare the items needed before
adding oil.
 Engine oil selection
 P.490
 Oil quantity (Low  Full)
1.5 L (1.6 qt., 1.3 Imp. qt.)
 Item
Clean funnel
■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.
1 Remove the oil filler cap by turn-
ing it counterclockwise.
2 Add engine oil slowly, checking
the dipstick.
3 Install the oil filler cap by turning
it clockwise.

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6-3. Do-it-yourself maintenance
Maintenance and care
■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 inter- vals.
●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 inappropri-ate viscosity is used
●When driving at high engine speeds or with a heavy load, when towing
(vehicles with towing packages), or when driving while accelerating or decelerating frequently
●When leaving the engine idling for a long time, or when driving frequently
through heavy traffic
■After changing the engine oil
The engine oil maintenance data should be reset. Perform the following proce-
dures:
1 Press / (7-inch display) or
/ (4.2-inch display) of the
meter control switch to select .
2 Press / (7-inch display) or
/ (4.2-inch display) to select
“Vehicle Settings” and then press
and hold .
3 Press / to select “Oil Mainte-
nance” and then press .
4 Press / to select “Yes” and
then press .
A message will be displayed on the multi-information display when the reset
procedure has been completed.
■Engine coolant reservoir
The coolant level is satisfactory if it
is between the “F” and “L” lines on
WARNING
■Used engine oil
●Used engine oil contains poten-
tially harmful contaminants which may cause skin disorders such as inflammation and skin cancer, so
care should be taken to avoid pro- longed 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 fil-
ters 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
concerning recycling or disposal.
●Do not leave used engine oil within
the reach of children.
NOTICE
■To prevent serious engine dam- age
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.
Checking the coolant

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7-2. Steps to take in an emergency
■Hybrid system overheat warning light* (warning buzzer)
*: This light illuminates on the multi-information display.
■Charging system warning light*
*: This light illuminates on the multi-information display.
■Low engine oil pressure warning light* (warning buzzer)
*: This light illuminates on the multi-information display.
■Malfunction indicator lamp* (warning buzzer)
*: This light illuminates on the multi-information display (with 7-inch display only).
Warning lightDetails/Actions
Indicates the hybrid system has overheated
 Stop the vehicle in a safe place.
Handling method ( P.481)
Warning lightDetails/Actions
Indicates a malfunction in the vehicle’s charging system
 Immediately stop the vehicle in a safe place and contact
any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
Warning lightDetails/Actions
Indicates that the engine oil pressure is excessively low
 Immediately stop the vehicle in a safe place and contact
any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
Warning lightDetails/Actions
Indicates a malfunction in:
 The hybrid system;
 The electronic engine control system; or
 The electronic throttle control system
 Immediately stop the vehicle in a safe place and contact
any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.

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7-2. Steps to take in an emergency
When trouble arises
■Warning messages
The warning messages explained below
may differ from the actual messages according to operation conditions and vehicle specifications.
■Warning buzzer
A buzzer may sound when a message is displayed. The buzzer may not be audible if the
vehicle is in a noisy location or if the audio system volume is high.
■If “Engine Oil Level Low Add or Replace” is displayed
The engine oil level is low. Check the
level of the engine oil, and add if neces-
sary.
This message may appear if the vehicle is stopped on a slope. Move the vehicle
to a level surface and check to see if the message disappears.
■If “Hybrid System Stopped Steering Power Low” is displayed
This message is displayed if the hybrid system is stopped while driving.
When steering wheel operations are
heavier than usual, grip the steering wheel firmly and operate it using more force than usual.
■If “Hybrid System Overheated Out-
put Power Reduced” is displayed
This message may be displayed when driving under severe operating condi-
tions. (For example, when driving up a long steep hill.) Handling method: P. 4 8 1
■If “Traction Battery Needs to be
Protected Refrain from the Use of N Position” is displayed
This message may be displayed when
the shift lever is in N.
As the hybrid battery (traction battery) cannot be charged when the shift lever
is in N, shift the shift lever to P when the vehicle is stopped.
■If “Traction Battery Needs to be Protected Shift into P to Restart” is
displayed
This message is displayed when the hybrid battery (traction battery) charge
has become extremely low because the shift lever has been left in N for a certain amount of time.
When operating the vehicle, shift to P and restart the hybrid system.
■If “Shift to P Before Exiting Vehicle” is shown
Message is displayed when the driver’s door is opened without turning the power switch to OFF with the shift lever
in any position other than P. Shift the shift lever to P.
If a warning message is
displayed
The multi-information display
shows warnings for system
malfunctions and incorrectly
performed operations, and
messages that indicate a need
for maintenance. When a mes-
sage is displayed, perform the
appropriate corrective action
for the message.
If a warning message is dis-
played again after the appro-
priate actions have been
performed, contact any autho-
rized Toyota retailer or Toyota
authorized repairer, or any reli-
able repairer.
Additionally, if a warning light
comes on or flashes at the
same time that a warning mes-
sage is displayed, take the
appropriate corrective action
for the warning light. ( P.439)

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7-2. Steps to take in an emergency
■If “Shift Out of N Release Accelera-
tor Before Shifting” is displayed
The accelerator pedal has been depressed when the shift lever is in N.
Release the accelerator pedal and shift the shift lever to D or R.
■If “Press Brake when Vehicle is Stopped Hybrid System may Over-
heat” is displayed
The message may be displayed when the accelerator pedal is depressed to
hold the vehicle while the vehicle is stopped on an incline, etc. The hybrid system may overheat. Release the
accelerator pedal and depress the brake pedal.
■If “Auto Power OFF to Conserve Battery” is displayed
Power was cut off due to the automatic power off function. Next time when start-ing the hybrid system, operate the
hybrid system for approximately 5 min- utes to recharge the 12-volt battery.
■If “Headlight System Malfunction Visit Your Dealer” is displayed
The following systems may be malfunc- tioning. Have the vehicle inspected by any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer immediately.
●The LED headlight system (if equipped)
●AHS (Adaptive High-beam System) (if equipped)
●Automatic High Beam (if equipped)
■If a message that indicates the mal-function of front camera is dis-played
The following systems may be sus- pended until the problem shown in the message is resolved. ( P.229, 439)
●PCS (Pre-Collision System) (if equipped)
●LTA (Lane Tracing Assist) (if equipped)
●AHS (Adaptive High-beam System) (if
equipped)
●Automatic High Beam (if equipped)
●RSA (Road Sign Assist) (if equipped)
●Dynamic radar cruise control with full-
speed range (if equipped)
■If a message that indicates the mal- function of radar sensor is dis-played
The following systems may be sus- pended until the problem shown in the message is resolved. ( P.229, 439)
●PCS (Pre-Collision System) (if equipped)
●LTA (Lane Tracing Assist) (if equipped)
●Dynamic radar cruise control with full-speed range (if equipped)
■If “Oil Maintenance Required Soon”
is displayed
Indicates that the engine oil should be scheduled to be changed.
Check the engine oil and change it if necessary.
After changing the engine oil, make sure
to reset the message. ( P.391)
■If “Oil Maintenance Required Visit Your Dealer” is displayed
Indicates that the engine oil should be
changed.
Check and change the engine oil, and oil filter by any authorized Toyota retailer
or Toyota authorized repairer, or any reli- able repairer. After changing the engine oil, make sure to reset the message.
( P.391)
■If “Radar Cruise Control Temporar- ily Unavailable See Owner’s Man-ual” is displayed (if equipped)
The dynamic radar cruise control with full-speed range system is suspended temporarily or until the problem shown
in the message is resolved. (causes and coping methods: P.229)

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7-2. Steps to take in an emergency
When trouble arises
■If “Radar Cruise Control Unavail-
able” is displayed (if equipped)
The dynamic radar cruise control with full-speed range system cannot be used
temporarily. Use the system when it becomes available again.
■If a message that indicates the need for visiting your Toyota dealer
is displayed
The system or part shown on the multi- information display is malfunctioning.
Have the vehicle inspected by any authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer immediately.
■If a message that indicates the need for referring to Owner’s Man-ual is displayed
●If “Engine Coolant Temp High Stop in a Safe Place See Owner’s Manual” is
displayed, follow the instructions accordingly. ( P.481)
●If “Exhaust Filter Full See Owner’s Manual” is displayed, follow the instructions accordingly. ( P.335)
●If “Oil Pressure Low Stop in a Safe Place See Owner’s Manual” is dis-
played, follow the instructions accord- ingly. ( P.389)
●If any of the following messages are displayed on the multi-information dis-play, it may indicate a malfunction.
Have the vehicle inspected by any authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer immediately. • “Smart Entry & Start System Malfunc-tion See Owner’s Manual”
• “Hybrid System Malfunction” • “Check Engine”• “Hybrid Battery System Malfunction”
• “Accelerator System Malfunction” • “Hybrid System Stopped”• “Engine Stopped”
●If any of the following messages are displayed on the multi-information dis-
play, it may indicate a malfunction. Immediately stop the vehicle and con-tact any authorized Toyota retailer or
Toyota authorized repairer, or any reli-
able repairer. • “Braking Power Low Visit Your Dealer”• “12-Volt Battery Charging System
Malfunction Visit Your Dealer”
●If “Low Auxiliary Battery See Owner’s
Manual” is shown, • When the display goes off after sev-eral seconds (displays for about 6
seconds): Maintain the hybrid system operation for more than 15 minutes and charge the 12-volt battery.
• When the display does not go off: Start up the hybrid system using the procedures: P. 4 7 6
●If “Maintenance Required for Traction Battery Cooling Parts See Owner’s
Manual” is shown, the filters may be clogged, the air intake vents may be blocked, or there may be a gap in the
duct. Therefore, perform the following correction procedure.• If the air intake vents and filters of the
hybrid battery (traction battery) are dirty, perform the procedure on P.412 to clean them.
• If the warning message is shown when the air intake vents and filters of the hybrid battery (traction battery) are
not dirty, have the vehicle inspected by any authorized Toyota retailer or Toyota authorized repairer, or any reli-
able repairer immediately.
■If “Maintenance Required For Trac- tion Battery At Your Dealer” is dis-played
The hybrid battery (traction battery) is scheduled to be inspected or replaced. Have the vehicle inspected by any
authorized Toyota retailer or Toyota authorized repairer, or any reliable repairer immediately.
●Continuing to drive the vehicle without having the hybrid battery (traction bat-
tery) inspected will cause the hybrid system not to start.
●If the hybrid system does not start, contact any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer immediately.