engine TOYOTA YARIS CROSS 2023 Workshop Manual
[x] Cancel search | Manufacturer: TOYOTA, Model Year: 2023, Model line: YARIS CROSS, Model: TOYOTA YARIS CROSS 2023Pages: 698, PDF Size: 147.65 MB
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6-3. Do-it-yourself maintenance
the reservoir when the engine is  
cold. 
Reservoir cap 
“F” line 
“L” line
If the level is on or below the “L” line,  
add coolant up to the “F” line. ( P.477)
■Power control unit coolant  
reservoir 
The coolant level is satisfactory if it  
is between the “F” and “L” lines on  
the reservoir when the hybrid sys- 
tem is cold. 
Reservoir cap 
“F” line 
“L” line
If the level is on or below the “L” line,  
add coolant up to the “F” line. ( P.477)
■Coolant selection 
Only use “Toyota Super Long Life Cool- 
ant” 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 retailer or Toyota  authorized repairer, or any reliable repairer.
■If the coolant level drops within a  
short time of replenishing 
Visually check the radiator, hoses,  engine/power control unit coolant reser- 
voir caps, drain cock and water pump. If you cannot find a leak, have any authorized Toyota retailer or Toyota  
authorized repairer, or any reliable  repairer, test the cap and check for leaks in the cooling system.
WARNING
■When the hybrid system is hot 
Do not remove the engine/power con- 
trol unit coolant reservoir caps.  ( P.479) 
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  
straight antifreeze. The correct mix- ture of water and antifreeze must be used to provide proper lubrication,  
corrosion protection and cooling. Be  sure to read the antifreeze or coolant label. 
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6-3. Do-it-yourself maintenance
Maintenance and care
Check the radiator and condenser  
and clear away any foreign objects.  
If either of the above parts is  
extremely dirty or you are not sure  
of their condition, have your vehicle  
inspected by any authorized Toyota  
retailer or Toyota authorized  
repairer, or any reliable repairer. 
If the washer fluid level is at “1/2”,  
add washer fluid.
NOTICE
■If you spill coolant 
Be sure to wash it off with water to  
prevent it from damaging parts or  paint.
Checking the radiator and  
condenser
WARNING
■When the hybrid system is hot 
Do not touch the radiator or con- 
denser as they may be hot and cause  serious injuries, such as burns.
Adding the washer fluid
WARNING
■When adding washer fluid 
Do not add washer fluid when the  
hybrid system is hot or operating as  washer fluid contains alcohol and may catch fire if spilled on the engine,  
etc.
NOTICE
■Do not use any fluid other than 
washer fluid 
Do not use soapy water or engine  antifreeze instead of washer fluid. 
Doing so may cause streaking on the  vehicle’s painted surfaces, as well as damaging the pump leading to prob- 
lems of the washer fluid not spraying.
■Diluting washer fluid 
Dilute washer fluid with water as nec- essary.Refer to the freezing temperatures  
listed on the label of the washer fluid  bottle. 
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6-3. Do-it-yourself maintenance
Maintenance and care
1Turn the power switch off. 
2 Open the fuse box cover.
Engine compartment: type A  
fuse box
Push the tabs in and lift the lid off.
Engine compartment: type B  
fuse box
Push the tabs in and lift the lid off.
Under the driver’s side instru-
ment panel (left-hand drive vehi- 
cles)
Remove the lid. 
Make sure to push the claw when  
removing/installing the lid.
Under the passenger’s side  
instrument panel (right-hand  
drive vehicles)
• Vehicles without a footwell lights 
Remove the cover and then remove the  
lid. 
Make sure to push the claw when  
removing/installing the lid.
Checking and replacing  
fuses
If any of the electrical compo- 
nents do not operate, a fuse  
may have blown. If this hap- 
pens, check and replace the  
fuses as necessary.
Checking and replacing  
fuses 
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6-3. Do-it-yourself maintenance
Maintenance and care
Check the wattage of the light bulb  
to be replaced. ( P.492)
Front 
Headlights (bulb type) 
Front turn signal lights (bulb  
type)
NOTICE
■When installing the fuse box  cover (Engine compartment: type  
A and type B fuse boxes) 
Press the fuse box cover, when  installing, after aligning all of the claw  
positions. Otherwise, the claws may  be damaged.
Light bulbs
You may replace the following  
bulbs by yourself. The diffi- 
culty level of replacement var- 
ies depending on the bulb. As  
there is a danger that compo- 
nents may be damaged, we  
recommend that replacement  
is carried out by any autho- 
rized Toyota retailer or Toyota  
authorized repairer, or any reli- 
able repairer.
Preparing for light bulb  
replacement
Bulb locations 
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7-1. Essential information
opened from the inside due to  
water pressure.
■Water level exceeds the floor 
When the water level exceeds the floor  and time has passed, the electrical  
equipment will get damaged, the power  windows will not operate, the engine and motor stop, and the vehicle may not  
be able to get moving.
■Using an emergency escape ham- 
mer*
Laminated glass is used in the wind- shield on this vehicle.Laminated glass cannot be shattered  
with an emergency hammer*. Tempered glass is used in the windows on this vehicle.*: Contact any authorized Toyota retailer  
or Toyota authorized repairer, or any 
reliable repairer, or aftermarket acces-
sory manufacturer for further informa-
tion about an emergency hammer.
WARNING
■Caution while driving 
Do not drive on roads where the  roads may be submerged or the water  
may be rising. Otherwise the vehicle  may be damaged and cannot move, as well as become flooded and set a  
drift, which may lead to death. 
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7-2. Steps to take in an emergency
Fluid leaks under the vehicle. 
(Water dripping from the air con- 
ditioning after use is normal.) 
 Flat-looking tires or uneven tire  
wear 
 Engine coolant temperature  
gauge needle continually points  
higher than normal. 
 Changes in exhaust sound 
 Excessive tire squeal when cor- 
nering 
 Strange noises related to the  
suspension system 
 Pinging or other noises related to  
the hybrid system 
 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
If  you think something is  
wrong
If you notice any  of the follow- 
ing symptoms, your vehicle  
probably needs adjustment or  
repair. Contact any authorized  
Toyota retailer or Toyota autho- 
rized repairer, or any reliable  
repairer as soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms 
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7-2. Steps to take in an emergency
When trouble arises
■Brake system warning light (warning buzzer)
■Brake system warning light
■High coolant temperature warning light* (warning buzzer)
*: This light illuminates on the multi-information display.
If  a warning light turns on or a warning buzzer sounds
Calmly perform the following actions if any of the warning lights  
comes on or flashes. If a light comes on or flashes, but then g oes  
off, this does not necessarily indicate a malfunction in the sy stem.  
However, if this continues to o ccur, have the vehicle inspected by  
any authorized Toyota retailer or Toyota authorized repairer, o r any  
reliable repairer.
Actions to the warning lights or warning buzzers
Warning lightDetails/Actions
(Red)
Indicates that: 
 The brake fluid level is low; or 
 The brake system is malfunctioning 
 Immediately 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.
Warning lightDetails/Actions
(Yellow)
Indicates a malfunction in:
 The regenerative braking system; 
 The electronically controlled brake system; or 
 The parking brake system 
 Have the vehicle inspected by any authorized Toyota  
retailer or Toyota authorized repairer, or any reliable 
repairer immediately.
Warning lightDetails/Actions
Indicates that the engine coolant temperature is excessively hi gh 
 Immediately stop the vehicle in a safe place. 
Handling method ( P.477) 
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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.477)
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 7 7
■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.435) 
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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, 435)
●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, 435)
●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.385)
■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.385)
■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)