2022 TOYOTA RAV4 PLUG-IN HYBRID engine

457
7
7-3. Do-it-yourself maintenance
Maintenance and care
QEngine oil consumption
A certain amount of engine oil will be
consumed while driving. In the following situations, oil consumption may increase, and engine oil may need to be
refilled in between oil maintenance inter- vals.
OWhen the engine is new, for example directly after purchasing the vehicle or after replacing the engine
OIf low quality oil or oil of an inappropri-ate viscosity is used
OWhen driving at high engine speeds or with a heavy load, when towing, or
when driving while accelerating or decelerating frequently
OWhen leaving the engine idling for a long time, or when driving frequently through heavy traffic
The coolant level is satisfactory if it
is between the “FULL” and “LOW”
lines on the reservoir when the
hybrid system is cold.
QEngine coolant reservoir
Reservoir cap
“FULL” line
WARNING
QUsed engine oil
OUsed engine oil contains poten-
tially harmful contaminants which may cause skin disorders such as inflammation and skin cancer, so
care should be taken to avoid pro- longed and repeated contact. To remove used engine oil from your
skin, wash thoroughly with soap and water.
ODispose of used oil and filters only in a safe and acceptable manner. Do not dispose of used oil and fil-
ters in household trash, in sewers or onto the ground. Call any autho-rized Toyota retailer or Toyota
authorized repairer, or any reliable repairer, service station or auto parts store for information concern-
ing recycling or disposal.
ODo not leave used engine oil within
the reach of children.
NOTICE
QTo prevent serious engine dam- age
Check the oil level on a regular basis.
QWhen replacing the engine oil
OBe careful not to spill engine oil on the vehicle components.
OAvoid overfilling, or the engine could be damaged.
OCheck the oil level on the dipstick every time you refill the vehicle.
OBe sure the engine oil filler cap is properly tightened.
QIf oil is spilled on the engine cover
To prevent the engine cover from
being damaged, remove any engine oil from the engine cover as soon as possible using a neutral detergent. Do
not use an organic solvent such as brake cleaner.
Checking the coolant
A
B

4587-3. Do-it-yourself maintenance
“LOW” line
If the level is on or below the “LOW”
line, add coolant up to the “FULL” line.
( P.551)
QPower 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.553)
QCoolant selection
Only use “Toyota Super Long Life Coo- lant” 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.
QIf the coolant level drops within a short time of replenishing
Visually check the radiators, 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.
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.
C
A
B
C
WARNING
QWhen the hybrid system is hot
Do not remove the engine/power con- trol unit coolant reservoir caps.
The cooling system may be under pressure and may spray hot coolant if the cap is removed, causing serious
injuries, such as burns.
NOTICE
QWhen 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.
QIf you spill coolant
Be sure to wash it off with water to prevent it from damaging parts or
paint.
Checking the radiator and
condenser

459
7
7-3. Do-it-yourself maintenance
Maintenance and care
Without level gauge
Type A: If any washer does not
work, the washer tank may be
empty. Add washer fluid.
Type B: If any washer does not
work or the warning message
appears on the multi-information
display, the washer tank may be
empty. Add washer fluid.
With level gauge
If the washer fluid level is at “LOW”,
add washer fluid.
QUsing the gauge (if equipped)
The washer fluid level can be checked
by observing the position of the level on the liquid-covered holes in the gauge.
If the level falls below the second hole
from the bottom (the “LOW” position), refill the washer fluid.
Current fluid level
WARNING
QWhen 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.
QWhen the electric cooling fan is operating
Do not touch the engine compart-
ment.
With the power switch in ON, the electric cooling fan may automatically
start to run if the air conditioning is on and/or the coolant temperature is high. Be sure the power switch is off
when working near the electric cool- ing fan or radiator grille.
Checking and adding the
washer fluid
WARNING
QWhen 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 hybrid system, etc.
A

4607-3. Do-it-yourself maintenance
The 12-volt battery is located in the
right-hand side of luggage compart-
ment.
QBefore recharging
When recharging, the 12-volt battery produces hydrogen gas which is flam-mable and explosive. Therefore,
observe the following precautions before recharging:
OIf recharging with the 12-volt battery installed on the vehicle, be sure to dis-connect the ground cable.
OMake sure the power switch on the charger is off when connecting and
disconnecting the charger cables to the 12-volt battery.
QAfter recharging/reconnecting the 12-volt battery
The hybrid system may not start. Follow the procedure below to initialize the sys-tem.
1 Shift the shift lever to P.
2 Open and close any of the doors.
3 Restart the hybrid system.
OUnlocking the doors using the smart entry & start system may not be possi-
ble immediately after reconnecting the 12-volt battery. If this happens, use the wireless remote control or the
mechanical key to lock/unlock the
NOTICE
QDo 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.
QDiluting washer fluid
Dilute washer fluid with water as nec-
essary. Refer to the freezing temperatures listed on the label of the washer fluid
bottle.
12-volt battery
Location

4887-3. Do-it-yourself maintenance
1Turn the power switch off.
Confirm that the charging connector is
not connected. Also, do not use the
Remote Air Conditioning System during
the procedure.
2Open the fuse box cover.
Engine compartment: Type A
fuse box
Push claws and to completely
release the lock, and then lift up the
cover.
Engine compartment: Type B
fuse box
Push claws and to completely
release the lock, and then lift up the
cover.
Left side instrument panel
Left-hand drive vehicles: Remove the
lid.
Right-hand drive vehicles: Push the tab
in and remove the cover, and then
remove 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
AB
AB

4907-3. Do-it-yourself maintenance
Type C
Normal fuse
Blown fuse
QAfter a fuse is replaced
OWhen installing the lid, make sure that
the tab is installed securely.
OIf the lights do not turn on even after
the fuse has been replaced, a bulb may need replacement. ( P.491)
OIf the replaced fuse blows again, have the vehicle inspected by any autho-
rized Toyota retailer or Toyota autho- rized repairer, or any reliable repairer.
QIf there is an overload in a circuit
The fuses are designed to blow, protect-
ing the wiring harness from damage.
QWhen replacing an electronic com- ponent, such as a lights, etc.
Toyota recommends that you use genu-
ine Toyota products designed for this vehicle. Because certain bulbs are con-nected to circuits designed to prevent
overload, non-genuine parts or parts not designed for this vehicle may be unus-able.
A
B
WARNING
QTo prevent system breakdowns and vehicle fire
Observe the following precautions. Failure to do so may cause damage to the vehicle, and possibly a fire or
injury.
ONever use a fuse of a higher amperage rating than that indi-
cated, or use any other object in place of a fuse.
OAlways use a genuine Toyota fuse or equivalent.Never replace a fuse with a wire,
even as a temporary fix.
ODo not modify the fuses or fuse
boxes.
NOTICE
QBefore replacing fuses
Have the cause of electrical overload determined and repaired by any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer as soon as possible.
QTo prevent damage to the engine compartment fuse box cover
When opening the fuse box, com- pletely release the claw locks before lifting up the cover. Otherwise, the
claws may be damaged.

5028-1. Essential information
water pressure.
QWater 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.
QUsing an emergency escape ham-
mer*1
Laminated glass*2 is used in the wind- shield and the windows on this vehicle.
Laminated glass cannot be shattered
with an emergency hammer*1.*1: Contact any authorized Toyota
retailer or Toyota authorized repairer,
or any reliable repairer or aftermarket
accessory manufacturer for further
information about an emergency
hammer.
*2: If equipped
QHow to distinguish laminated glass
When looking from the cross-sectional
view point, laminated glass is two sheets of glass pasted together.
Laminated glass
Tempered glass
A
B
WARNING
QCaution 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.

5068-2. Steps to take in an emergency
5Securely attach cables or chains
to the towing eyelet.
Take care not to damage the vehicle
body.
6 Enter the vehicle being towed
and start the hybrid system.
Turn off the Parking Support Brake
function. (if equipped): P.379
If the hybrid system does not start, turn the power switch to ON.
7 Shift the shift lever to N and
release the parking brake.
Turn automatic mode off. ( P.283)
When the shift lever cannot be shifted:
 P.279
QWhile towing
If the hybrid system is not running, the power assist for the brakes and steering will not function, making steering and
braking more difficult.
QWheel nut wrench (if equipped)
Wheel nut wrench is installed in the deck under tray. ( P.523, 534)
Fluid leaks under the vehicle
(Water dripping from the air con-
ditioning after use is normal.)
 Flat-looking tires or uneven tire
wear
 High coolant temperature warn-
ing light flashes or come on
 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
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
authorized repairer, or any reli-
able repairer as soon as possi-
ble.
Visible symptoms
Audible symptoms
Operational symptoms