2021 TOYOTA C-HR radiator cap

3616-3. Do-it-yourself maintenance
6
Maintenance and care
C-HR_OM_USA_OM10684U
Engine compartment
Washer fluid tank (P. 373)
Engine coolant reservoir ( P. 365)
Fuse boxes ( P. 401)
Engine oil filler cap ( P. 363)
Engine oil level dipstick ( P. 362) Battery
( P. 369)
Brake fluid reservoir ( P. 367)
Electric cooling fan
Condenser ( P. 366)
Radiator ( P. 366)

3656-3. Do-it-yourself maintenance
6
Maintenance and care
C-HR_OM_USA_OM10684U
The coolant level is satisfactory if it is between the “FULL” a nd “LOW”
lines on the reservoir wh en 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.
■ 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-bora te coolant with
long-life hybrid organic acid technology.
For the U.S.A.: “Toyota Super Long Life Coolant” is a mixture o f 50% cool-
ant and 50% deionized water. (Minimum temperature: -31 F
[-35 C])
For Canada: “Toyota Super Long Life Coolant” is a mixture of 55 % cool-
ant and 45% deionized water. (Minimum temperature: -44 F
[-42 C])
For more details about engine coolant, contact your Toyota deal er.
■ If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine coolant reservoir ca ps, drain cock
and water pump.
If you cannot find a leak, have your Toyota dealer test the cap and check for
leaks in the cooling system.
Engine coolant

3666-3. Do-it-yourself maintenance
C-HR_OM_USA_OM10684U
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 vehic le inspected by your Toyota dea ler.
WARNING
■When the engine is hot
Do not remove the engine coolant reservoir 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 cor rect 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 p arts or paint.
Radiator and condenser
WARNING
■When the engine is hot
Do not touch the radiator or condenser as they may be hot and c ause seri-
ous injuries, such as burns.

4727-2. Steps to take in an emergency
C-HR_OM_USA_OM10684U
WARNING
■When inspecting under th e 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 ho od 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. Failure to do so may cause the hands or clothing to be
caught, resulting in serious injury.
● Do not loosen the coolant reservoir cap while the engine and radiator are
hot.
High temperature steam or coolant could spray out.
NOTICE
■When adding coolant
Add coolant slowly after the engine has cooled down sufficientl y. Adding
cool coolant to a hot engine too quickly can cause damage to th e engine.
■ To prevent damage to the cooling system
Observe the following precautions:
● Avoid contaminating the coolant with foreign matter (such as sa nd or dust
etc.).
● Do not use any coolant additives.

541Alphabetical index
C-HR_OM_USA_OM10684U
Radiator .................................... 366
Radio
*
RCTA (Rear Cross Traffic Alert) ..... 292
Rear Cross Traffic Alert .......... 292
Rear interior light..................... 324
Rear seat Folding down ........................ 145
Rear turn signal lights............. 195 Replacing light bulbs............. 410
Turn signal lever ................... 195
Wattage ................................ 483
Rear view monitor system
*
Rear window defogger ............ 315
Rear window wiper .................. 218
Refueling .................................. 220 Capacity ................................ 478
Fuel types ............................. 484
Opening the fuel tank cap ..... 222
When the fuel filler door
cannot be opened............... 222 Replacing
Electronic key battery ........... 397
Fuses .................................... 401
Light bulbs ............................ 407
Tires...................................... 449
Wireless remote control
battery ................................ 397
Reporting safety defects for
U.S. owners ........................... 514
Resetting the message indicating maintenance is
required.................................. 348
Road Sign Assist (RSA) .......... 261
RSA (Road Sign Assist) .......... 261
R
*: Refer to “MULTIMEDIA OWNER’S MANUAL”.