radiator TOYOTA YARIS 2020 Owners Manual

4887-3. Do-it-yourself maintenance
YARIS_F_OM_Europe_OM52A54E
Do-it-yourself service precautions
If you perform maintenance by yourself, be sure to follow the
correct procedure as given in these sections.
ItemsParts and tools
Battery condition
(P. 504)•Warm water• Baking soda•Grease
• Conventional wrench (for terminal clamp bolts)
• Distilled water
Engine coolant
level (P. 501)
• “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 pre-mixed with
50% coolant and 50% deionized water.
• Funnel (used only for adding coolant)
Engine oil level
(P. 497)• “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses
(P. 541)• Fuse with same amperage rating as original
Light bulbs
(P. 547)
• Bulb with same number and wattage rating as origi-
nal
• Phillips-head screwdriver
• Flathead screwdriver•Wrench
Radiator and con-
denser (P. 503)
Tire inflation
pressure
(P. 528)• Tire pressure gauge
• Compressed air source
Washer fluid
(P. 507)• Water or washer fluid containing antifreeze (for win-
ter use)
• Funnel (used only for adding water or washer fluid)

4897-3. Do-it-yourself maintenance
7
Maintenance and care
YARIS_F_OM_Europe_OM52A54E
.
WARNING
The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become el ectrically energized. To avoid death
or serious injury, observe the following precautions.
■ When working on the engine compartment
● Keep hands, clothing and tools away from the moving fan and engine
drive belt.
● Be careful not to touch the engine, radiator, exhaust manifold, etc., right
after driving as they may be hot. Oil and other fluids 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 on the bat-
tery. Fuel and battery fumes are flammable.
● Be extremely cautious when working on the battery. It contains poisonous
and corrosive sulfuric acid.
● Take care because brake fluid can harm your hands or eyes and damage
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
Vehicles without a smart entry & start system
Be sure the engine switch is in the “LOCK” position.
With the engine switch in the “ON” position, the electric cooling fan may
automatically start to run if the air conditioning is on and/or the coolant tem-
perature is high. ( P. 503)
Vehicles with a smart entry & start system
Be sure the engine switch is off.
With the engine switch in IGNITION ON mode, the electric cooling fan may
automatically start to run if the air conditioning is on and/or the coolant tem-
perature is high. ( P. 503)
■ Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc.,
from getting in your eyes.

4957-3. Do-it-yourself maintenance
7
Maintenance and care
YARIS_F_OM_Europe_OM52A54E
Engine compartment
■1KR-FE engine
Fuse boxes (P. 541)
Engine oil level dipstick
(P. 497)
Engine oil filler cap
(P. 499)
Battery (P. 504)Engine coolant reservoir
(P. 501)
Electric cooling fan
Condenser (P. 503)
Radiator (P. 503)
Washer fluid tank (P. 507)1
2
3
4
5
6
7
8
9

4967-3. Do-it-yourself maintenance
YARIS_F_OM_Europe_OM52A54E■
2NR-FKE engine
Fuse boxes (P. 541)
Engine oil filler cap
(P. 499)
Engine oil level dipstick
(P. 497)
Battery (P. 504)Engine coolant reservoir
(P. 501)
Electric cooling fan
Condenser (P. 503)
Radiator (P. 503)
Washer fluid tank (P. 507)1
2
3
4
5
6
7
8
9

5027-3. Do-it-yourself maintenance
YARIS_F_OM_Europe_OM52A54E
■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 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 coolant reservoir caps, drain cock
and water pump.
If you cannot find a leak, have any authorized Toyota retailer or Toyota autho-
rized repairer, or any reli able repairer test the cap and check for leaks in the
cooling system.
WARNING
■ When the engine is hot
Do not remove the radiator cap.
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 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.

5037-3. Do-it-yourself maintenance
7
Maintenance and care
YARIS_F_OM_Europe_OM52A54E
Check the radiator and condenser and clear away any foreign 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
retailer or Toyota authorized repairer, or any reliable repairer.
Radiator and condenser
WARNING
■ When the engine is hot
Do not touch the radiator and condenser as they may be hot and cause
serious injuries, such as burns.

6408-2. Steps to take in an emergency
YARIS_F_OM_Europe_OM52A54E
After the engine has cooled down sufficiently, inspect the hoses and
radiator core (radiator) for any leaks.
If a large amount of coolant leaks, immediately contact any authorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer.
The coolant level is satisfactory if it is between the “FULL” and
“LOW” lines on the reservoir.
3
1KR-FE engine2NR-FKE engine
Radiator
Cooling fan
1
2
4
1KR-FE engine2NR-FKE engine
Reservoir
“FULL”
“LOW”
Radiator cap
1
2
3
4

6418-2. Steps to take in an emergency
8
When trouble arises
YARIS_F_OM_Europe_OM52A54E
Add coolant if necessary.
Water can be used in an emergency if coolant is unavailable.
Start the engine and turn the air conditioning system on to check
that the radiator cooling fan operates and to check for coolant leaks
from the radiator or hoses.
The fan operates when the air conditioning system is turned on immedi-
ately after a cold start. Confirm that the fan is operating by checking the fan
sound and air flow. If it is difficult to check these, turn the air conditioning
system on and off repeatedly.
(The fan may not operate in freezing temperatures.)
If the fan is not operating:
Stop the engine immediately and contact any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
If the fan is operating:
Have the vehicle inspected at the nearest authorized Toyota retailer
or Toyota authorized repairer, or any reliable repairer.
5
1KR-FE engine2NR-FKE engine
6
7

6428-2. Steps to take in an emergency
YARIS_F_OM_Europe_OM52A54E
WARNING
■To prevent an accident or injury when inspecting under the hood of
your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
● If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot.
● Keep hands and clothing (especially a tie, a scarf or a muffler) away from
the fan and belts while the engine is operating.
● Do not loosen the radiator cap or the coolant reservoir cap while the
engine and radiator are hot.
NOTICE
■ When adding engine coolant
Add coolant slowly after the engine has cooled down sufficiently. Adding
cool coolant to a hot engine too quickly can cause damage to the engine.
■ To prevent damage to the cooling system
Observe the following precautions.
● Avoid contaminating the coolant with foreign matter (such as sand or dust
etc.).
● Do not use any coolant additives.

687Alphabetical index
YARIS_F_OM_Europe_OM52A54E
Paddle shift switches ...... 254, 255
Parking brake ........................... 265
Operation .............................. 265
Parking brake engaged
warning buzzer ................... 581
PCS (Pre-Crash Safety
system) ................................... 290
Function ................................ 290
PCS switch............................ 294
Warning light ......................... 583
Warning message ................. 305
Personal lights ......................... 461
Switch ................................... 461
Wattage................................. 663
Portable ashtray....................... 472
Power outlet ............................. 474
Power steering ......................... 355
Warning light ......................... 582
Power windows ........................ 214
Jam protection function ......... 215
Operation .............................. 214
Window lock switch ............... 214
Pre-Crash Safety
system (PCS) ......................... 290
Function ................................ 290
PCS switch............................ 294
Warning light ......................... 583
Warning message ................. 305Radiator .................................... 503
Radio......................................... 374
Radio data system ................... 376
RDS ........................................... 376
Rear fog light ........................... 271
Replacing light bulbs............. 565
Switch ................................... 271
Wattage ................................ 663
Rear passengers’ seat belt
reminder light ........................ 585
Rear seat .................................. 201
Folding down the rear
seatbacks ........................... 201
Rear turn signal lights............. 264
Replacing light bulbs............. 559
Turn signal lever ................... 264
Wattage ................................ 663
Rear view mirror
Inside rear view mirror .......... 209
Outside rear view mirrors...... 211
Rear view monitor
*
Rear view monitor system ...... 334
Rear window defogger .... 442, 453
Rear window wiper .................. 277
Refueling .................................. 279
Capacity ................................ 650
Fuel types ............................. 650
Opening the fuel tank cap ..... 281
Replacing
Electronic key battery ........... 537
Fuses .................................... 541
Light bulbs ............................ 547
Tires .............................. 596, 614
Wireless remote control
battery ................................ 537
Roof shade ............................... 475
PR
*: For vehicles with navigation/multimedia system, refer to “Navigation
and multimedia system Owner’s manual”.