2022 TOYOTA COROLLA HATCHBACK radiator cap

4727-3. Do-it-yourself maintenance
Washer fluid tank (P.477)
Engine coolant reservoir ( P. 4 7 5 )
Fuse boxes ( P.494)
Engine oil filler cap ( P.473)
Engine oil level dipstick ( P.472)
Intercooler coolant reservoir ( P.475)
Battery ( P.476)
Radiator ( P.476)
Condenser ( P.476)
Electric cooling fans
With the engine at operating tem-
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 compartment
Components
Checking and adding the
engine oil

475
7
7-3. Do-it-yourself maintenance
Maintenance and care
■Engine coolant reservoir
The coolant level is satisfactory if it
is between the “FULL” and “LOW”
lines on the reservoir when 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.
( P.560)
■Intercooler coolant reservoir
The coolant level is satisfactory if it
is between the “F” and “L” lines on
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.560)
■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 coolant reservoir 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.
NOTICE
■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

4767-3. Do-it-yourself maintenance
Check the radiator, condenser and
intercooler and clear away any for-
eign 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.
Check the battery as follows.
■Battery exterior
Make sure that the battery termi-
nals are not corroded and that there
are no loose connections, cracks,
or loose clamps.
Terminals
Hold-down clamp
■Before recharging
When recharging, the battery produces hydrogen gas which is flammable and
explosive. Therefore, observe the fol-
lowing precautions before recharging:
●If recharging with the battery installed
on the vehicle, be sure to disconnect the ground cable.
●Make sure the charger is off when connecting and disconnecting the
charger cables to the battery.
■After recharging/reconnecting the
battery (vehicles with a smart entry & start system)
●Unlocking the doors using the smart entry & start system may not be possi-
ble immediately after reconnecting the
battery. If this happens, use the wire- less remote control or the mechanical
key to lock/unlock the doors.
●Start the engine with the engine
switch in ACC. The engine may not
WA R N I N G
■When the engine is hot
Do not remove the engine coolant
reservoir cap and the intercooler cool- ant 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 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.
■If you spill coolant
Be sure to wash it off with water to
prevent it from damaging parts or
paint.
Checking the radiator, con-
denser and intercooler
WA R N I N G
■When the engine is hot
Do not touch the radiator, condenser
or intercooler as they may be hot and
cause serious injuries, such as burns.
Battery

5628-2. Steps to take in an emergency
operate and to check for coolant
leaks from the radiator or hoses.
The fans operate when the air condi-
tioning system is tu rned on immediately after a cold start. Confirm that the fans
are operating by checking the fan
sound and air flow. If it is difficult to check these, turn the air conditioning
system on and off r epeatedly. (The fans
may not operate in freezing tempera- tures.)
7 If the fans are not operating:
Stop the engine immediately
and contact any authorized
Toyota retailer or Toyota author-
ized repairer, or any reliable
repairer.
If the fans are operating: Have
the vehicle inspected at the
nearest any authorized Toyota
retailer or Toyota authorized
repairer, or any reliable repairer.
WA R N I N G
■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 (espe-
cially a tie, a scarf or a muffler) away from the fans and belts. Fail-
ure to do so may cause the hands
or clothing to be caught, resulting in serious injury.
●Do not loosen the coolant reservoir caps while the engine and radiator
are hot.
High temperature steam or coolant could spray out.
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 additive.

600Alphabetical Index
Parking Support Brake function
(static objects) .................... 317, 324
Function ..................................... 324
Partition net .................................. 448
PCS (Pre-Collision System)
Function ..................................... 224
Warning light .............................. 517
Personal lights.............................. 436
Wattage...................................... 575
PKSB (Parking Support Brake) ... 317
Warning message ...................... 322
Power outlet .................................. 451
Power steering (Electric power
steering system)......................... 357
Warning light .............................. 514
Power windows
Door lock linked window operation
................................................. 152
Jam protection function .............. 151
Operation ................................... 151
Window lock switch .................... 153
Pre-Collision System (PCS)
Function ..................................... 224
Warning light .............................. 517
R
Radar cruise control .................... 260
Radar cruise control (dynamic radar
cruise control with full-speed
range) .......................................... 249
Radiator ......................................... 476
Radio ............................................. 373
RCTA
Function ..................................... 312
Warning message ...................... 313
RCTA function............................... 313
Rear Crossing Tr affic Alert (RCTA)
..................................................... 312
Rear fog lights
Replacing light bulbs .................. 497
Switch ........................................ 205
Rear seats ..................................... 142
Head restraints........................... 144
Seat heaters............................... 434
Rear turn signal lights
Replacing light bulbs ..................497
Turn signal lever ......................... 189
Rear view mirror
Inside rear view mirror................147
Outside rear view mirrors ........... 148
Rear window defogger ......... 424, 429
Rear window wiper .......................209
Refueling
Capacity .....................................568
Fuel types...................................568
Opening the fuel tank cap .......... 211
Replacing
Electronic key battery ................. 490
Fuses .........................................494
Light bulbs .................................. 497
Tires ...........................................539
Wireless remote control battery .490
Road Sign Assist ..........................276
RSA (Road Sign Assist) ...............276
S
Seat belt reminder light ................514
Seat belts ......................................... 33
Adjusting the seat belt .................. 35
Child restraint system installation. 48
Cleaning and maintaining the seat
belt ...........................................463
Emergency Locking Retractor ...... 35
How to wear your seat belt........... 34
How your child should wear the seat
belt ............................................. 34
Pregnant women, proper seat belt
use ............................................. 33
Reminder light and buzzer ......... 514
Seat belt pretensioners ................ 35
SRS warning light.......................512
Seat heaters .................................. 434
Seats
Adjustment ................................. 141
Adjustment precautions.............. 141
Child seats/child restraint system
installation .................................. 48
Cleaning .....................................463