radiator cap TOYOTA RAV4 HYBRID 2022 Owners Manual

5707-3. Do-it-yourself maintenance
Fuse boxes (P.603)
Engine oil filler cap ( P.571)
Engine oil level dipstick ( P.570)
Brake fluid reservoir ( P.574)
Radiator ( P.573)
Electric cooling fan
Condenser ( P.573)
Power control unit coolant reservoir ( P.573)
Washer fluid tank ( P.575)
Engine coolant reservoir ( P.572)
■12-volt battery
 P.576
With the engine at operating
temperature and turned off,
Engine compartment
Components
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5737-3. Do-it-yourself maintenance
7
Maintenance and care
Reservoir cap
“FULL” line
“LOW” line
If the level is on or below the “LOW”
line, add coolant up to the “FULL”
line. (P.659)
■Power control unit coolant
reservoir
Reservoir cap
“FULL” line
“LOW” line
If the level is on or below the “LOW”
line, add coolant up to the “FULL”
line. ( P.660)
■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.
U.S.A.:
“Toyota Super Long Life Coolant” is
a mixture of 50% coolant and 50%
deionized water. (Minimum tem-
perature: -31°F [-35°C])
Canada:
“Toyota Super Long Life Coolant” is
a mixture of 55% coolant and 45%
deionized water. (Minimum tem-
perature: -44°F [-42°C])
For more details about coolant, con-
tact your To yota dealer.
■If the coolant level drops within
a short time of replenishing
Visually check the radiators, hoses,
engine/power control unit coolant
reservoir caps, 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 sys-
tem.
Check the radiator and con-
denser, 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
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WARNING
■When the hybrid system is
hot
Do not remove the engine/power
control unit coolant reservoir
caps.
The cooling system may be under
pressure and may spray hot cool-
ant 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.
Checking the radiator and
condenser

5747-3. Do-it-yourself maintenance
your vehicle inspected by your
Toyota dealer.
■Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN”
lines on the tank.
■Adding fluid
1 Slide and lift up the rubber
strip to partly remove it as
shown.
2 Disconnect the claws and
remove the service cover.
3 Remove the reservoir cap.
4 Add brake fluid slowly while
checking the fluid level.
Make sure to check the fluid
type and prepare the necessary
item.
WARNING
■When the hybrid system is
hot
Do not touch the r adiator or con-
denser as they may be hot and
cause serious injuries, such as
burns.
■When the electric cooling fan
is operating
Do not touch the engine compart-
ment.
With the power switch in ON, the
electric cooling fan may automati-
cally start to run if the air condi-
tioning is on and/or the coolant
temperature is high. Be sure the
power switch is OFF when work-
ing near the electric cooling fan or
radiator grille.
Checking and adding the
brake fluid

6618-2. Steps to take in an emergency
8
When trouble arises
“FULL” and “LOW” lines on
the reservoir.
Reservoir
“FULL” line
“LOW” line
5 Add coolant if necessary.
Water can be used in an emer-
gency if power control unit coolant
is unavailable.
If water was added in an emer-
gency, have the vehicle inspected
at your Toyota dealer as soon as
possible.
6After stopping the hybrid sys-
tem and waiting for 5 minutes
or more, start the hybrid sys-
tem again and check for the
multi-information display.
If the message does not disappear:
Stop the hybrid system and contact
your Toyota dealer.
If the message is not displayed:
The hybrid system temperature has dropped and the vehicle may be
driven normally.
However, if the message appears
again frequently, contact your
Toyota dealer.
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WARNING
■When inspecting under the
hood of your vehicle
Observe the following precau-
tions.
Failure to do so may result in seri-
ous injury such as burns.
●If steam is seen coming from
under the hood, do not open the
hood until the steam has sub-
sided. The engine compart-
ment may be very hot.
●After the hybrid system has
been turned off , check that the
“READY” indicator is off.
When the hybrid system is oper-
ating, the gasoline engine may
automatically start, or the cool-
ing fan may suddenly operate
even if the gasoline engine
stops. Do not touch or approach
rotating parts such as the fan,
which may lead to fingers or
clothing (especially a tie, a scarf
or a muffler) getting caught,
resulting in serious injury.
●Do not loosen the coolant reser-
voir cap while the hybrid system
and radiator are hot.
High temperature steam or
coolant could spray out.
NOTICE
■When adding engine/power
control unit coolant
Add coolant slowly after the
hybrid system has cooled down
sufficiently. Adding cool coolant to
a hot hybrid system too quickly
can cause damage to the hybrid
system.

Alphabetical Index729
Placing a call using the Bluetooth
® hands-free system
............................................... 474 By call history ....................... 474
By contacts list ..................... 475
By favorites list ..................... 475
By home screen ................... 477
By keypad ............................ 476
Power back door switch 133, 134
Power outlets .......................... 536
Power steering (Electric Power Steering system) .................. 362Warning light ........................ 626
Power switch .................. 204, 206 Auto power off function ........ 210
Changing the power switch modes ........................ 205, 209
Starting the hybrid system.. 204, 206
POWER VOLUME knob .......... 423
Power windows Door lock linked window opera-tion ..................................... 172
Jam protection function ........ 171
Operation ............................. 171
Window lock switch .............. 173
Pre-Collision System (PCS) Enabling/disabling the pre-colli-sion system ........................ 246
Function ............................... 244
Warning light ........................ 627
Warning message ........ 242, 638
Projection button (Menu screen) ............................................... 379
R
Radar cruise control Dynamic radar cruise control with full-speed range .......... 265
Radiator ................................... 573
Radio ....................................... 427 RCTA (Rear Cross Traffic Alert)
RCTA Function .............276, 283
Warning message . ...............278
Rear Cross Traffic Alert (RCTA) ...............................................276
Rear passengers’ seat belt reminder light........................631
Rear seat Folding down the rear seatbacks...........................................150
Head restraints .....................154
Rear side marker lights Light switch...........................224
Replacing light bulbs ............607
Rear turn signal lights Replacing light bulbs ............607
Turn signal lever . ..................217
Wattage ................................674
Rear view mirror Digital Rear-view Mirror ........160
Inside rear view mirror ..........158
Outside rear view mirrors .....169
Rear view monitor system .....305 Driving precautions ...............305
Rear view monitor system pre-cautions ..............................306
Screen description................306
Things you should know .......311
Rear window defogger ...........516
Rear window wiper .................234
Receiving a call using the
Bluetooth
® hands-free system
...............................................477
Refueling ............ .....................236
Capacity ...............................667
Fuel types .....................667, 675
If the fuel filler door cannot be opened ...............................651
Opening the fuel tank cap ....237
Regenerative braking ...............73
Registering/Connecting a
Bluetooth
® device ................392