2021 TOYOTA RAV4 engine

6658-2. Steps to take in an emergency
8
When trouble arises
following operations.
1Locks all the doors
2 Unlocks the door
Turning the key rearward unlocks
the driver’s door. Turning the key
once again within 5 seconds
unlocks the other doors.
■Key linked functions
1 Closes the windows and the
moon roof
*1 or panoramic moon
roof
*1 (turn and hold)*2
2 Opens the windows and the
moon roof
*1 or panoramic moon
roof
*1 (turn and hold)*2
*1
: If equipped
*2: These settings must be custom- ized at your Toyota dealer.
1 Ensure that the shift lever is
in P and depress the brake
pedal.
2 Touch the Toyota emblem
side of the electronic key to
the engine switch.
When the electronic key is
detected, a buzzer sounds and the
engine switch will turn to ON.
When the smart key system is
deactivated in customization set-
ting, the engine s witch will turn to
ACC.
WARNING
■When using the mechanical
key and operating the power
windows or the moon roof (if
equipped) or panoramic
moon roof (if equipped)
Operate the power window or the
moon roof or panoramic moon
roof after checking to make sure
that there is no p ossibility of any
passenger having any of their
body parts caught in the window
or the moon roof or panoramic
moon roof. Also, d o not allow chil-
dren to operate t he mechanical
key. It is possible for children and
other passengers to get caught in
the power window or the moon
roof or panoramic moon roof.
Starting the engine

6668-2. Steps to take in an emergency
3Firmly depress the brake
pedal and check that
is displayed on the multi-
information display.
4 Press the engine switch
shortly and firmly.
In the event that the engine still
cannot be started, contact your
Toyota dealer.
■Stopping the engine
Shift the shift lever to P, set the
parking brake and press the engine
switch as you no rmally do when
stopping the engine.
■Replacing the key battery
As the above proc edure is a tempo-
rary measure, it is recommended
that the electronic key battery be
replaced immediate ly when the bat-
tery is depleted. ( P.613)
■Alarm (Canada only)
If a door is unlocked using the
mechanical key when the alarm sys-
tem is set, the alarm may be trig-
gered.
*
*
: These settings must be custom- ized at your To yota dealer.
■Changing engine switch modes
Release the brake pedal and press
the engine switch in step 3 above.
The engine does not start and
modes will be cha nged each time
the switch is pressed. ( P.199)
If you have a set of jumper (or
booster) cables and a second
vehicle with a 12-volt battery,
you can jump start your vehicle
by following the steps below.
1Vehicles with alarm: Confirm
that the electronic key is
being carried.
When connecting the jumper (or
booster) cables, depending on the
situation, the alarm may activate
and the doors locked. ( P.74)
2 Open the hood. ( P.579)
If the vehicle battery
is discharged
The following procedures
may be used to start the
engine if the vehicle’s bat-
tery is discharged.
You can also call your
Toyota dealer or a qualified
repair shop.
Restarting the engine

6678-2. Steps to take in an emergency
8
When trouble arises
3Connect a positive jumper cable clamp to on your vehicle and
connect the clamp on the other end of the positive cable to on
the second vehicle. Then, connect a negative cable clamp to
on the second vehicle and connect the clamp at the other end of
the negative cable to .
Positive (+) battery terminal (your vehicle)
Positive (+) battery terminal (second vehicle)
Negative (-) battery term inal (second vehicle)
Solid, stationary, unpainted metallic point away from the batte ry
and any moving parts as shown in the illustration
4 Start the engine of the sec-
ond vehicle. Increase the
engine speed slightly and
maintain at that level for
approximately 5 minutes to
recharge the battery of your
vehicle.
5 Vehicles with smart key sys-
tem only: Open and close
any of the doors of your vehi-
cle with the engine switch
OFF.
6 Vehicles without smart key
system: Maintain the engine speed of the second vehicle
and start the engine of your
vehicle.
Vehicles with smart key sys-
tem: Maintain the engine
speed of the second vehicle
and start the engine of your
vehicle by turning the engine
switch to ON.
7 Once the vehicle’s engine
has started, remove the
jumper cables in the exact
reverse order from which
they were connected.A
B
C
D
A
B
C
D

6688-2. Steps to take in an emergency
Once the engine starts, have the
vehicle inspected at your Toyota
dealer as soon as possible.
■Starting the engine when the
battery is discharged
The engine cannot be started by
push-starting.
■To prevent battery discharge
●Turn off the headlights and the
audio system while the engine is
stopped.
(Vehicles with Stop & Start system:
Except when the engine is stopped
due to the Stop & Start system)
●Turn off any unnec essary electri-
cal components when the vehicle
is running at a low speed for an
extended period, such as in heavy
traffic.
■When the battery is removed or
discharged
●Information stor ed in the ECU is
cleared. When the battery is
depleted, have the vehicle
inspected at your Toyota dealer.
●Some systems may require initial-
ization. ( P.712)
■When removing the battery ter-
minals
When the battery terminals are
removed, the information stored in
the ECU is cleared . Before remov-
ing the battery terminals, contact
your Toyota dealer.
■Charging the battery
The electricity stor ed in the battery
will discharge gradu ally even when
the vehicle is not i n use, due to nat-
ural discharge and the draining
effects of certain electrical appli-
ances. If the vehicle is left for a long
time, the battery may discharge,
and the engine ma y be unable to
start. (The battery recharges auto-
matically during driving.)
■When recharging or replacing
the battery (vehicles without
smart key start system)
The engine may not start on the first
attempt after th e battery has
recharged but will start normally
after the second attempt. This is not
a malfunction.
■When recharging or replacing
the battery (vehicles with smart
key system)
●In some cases, it may not be pos-
sible to unlock the doors using the
smart key system when the bat-
tery is discharged. Use the wire-
less remote control or the
mechanical key to lock or unlock
the doors.
●The engine may not start on the
first attempt after the battery has
recharged but will start normally
after the second attempt. This is
not a malfunction.
●The engine switch mode is memo-
rized by the vehicle. When the
battery is reconnected, the system
will return to the mode it was in
before the bat tery was dis-
charged. Before disconnecting the
battery, turn the engine switch to
OFF.
If you are unsure what mode the
engine switch wa s in before the
battery discharged, be especially
careful when reconnecting the
battery.
■When the battery is removed or
discharged (vehicles with Stop
& Start system)
The Stop & Start system may not
automatically stop the engine for up
to an hour.
■When replacing the battery
●Vehicles with Stop & Start system:
Use a genuine battery specifically
designed for use with the Stop &
Start system or a battery with equiv-
alent specifications to a genuine
battery. If an unsup ported battery is
used, Stop & Start system functions

6698-2. Steps to take in an emergency
8
When trouble arises
may be restricted to protect the bat-
tery. Also, battery performance may
decrease and the engine may not
be able to restart. Contact your
Toyota dealer for details.
●Use a battery tha t conforms to
European regulations.
●Type A:
Use a battery that the case size is
same as the previous one (LN3), 20
hours rate capacity (20HR) is equiv-
alent (65Ah) or greater, and perfor-
mance rating (CCA) is equivalent
(603A) or greater.
Type B:
Use a battery that the case size is
same as the previous one (LN2), 20
hours rate capacity (20HR) is equiv-
alent (60Ah) or greater, and perfor-
mance rating (CCA) is equivalent
(360A) or greater.
Type C:
Use a battery that the case size is
same as the previous one (LN2), 20
hours rate capacity (20HR) is equiv-
alent (60Ah) or greater, and perfor-
mance rating (CCA) is equivalent
(563A) or greater.
• If the sizes differ, the battery can- not be properly secured.
• If the 20 hour rate capacity is low,
even if the time period where the
vehicle is not used is a short time,
the battery may discharge and
engine may not be able to start.
WARNING
■When removing the battery
terminals
Always remove the negative (-)
terminal first. If the positive (+) ter-
minal contacts any metal in the
surrounding area when the posi-
tive (+) terminal is removed, a
spark may occur, l eading to a fire
in addition to electrical shocks
and death or serious injury.
■Avoiding battery fires or
explosions
Observe the following precautions
to prevent accidentally igniting the
flammable gas that may be emit-
ted from the battery:
●Make sure each jumper cable is
connected to the correct termi-
nal and that it is not unintention-
ally in contact with any other
than the intended terminal.
●Do not allow the other end of
the jumper cable connected to
the “+” terminal to come into
contact with any other parts or
metal surfaces in the area, such
as brackets or unpainted metal.
●Do not allow the + and - clamps
of the jumper cables to come
into contact with each other.
●Do not smoke, u se matches,
cigarette lighters or allow open
flame near the battery.
■Battery precautions
The battery contains poisonous
and corrosive acidic electrolyte,
while related parts contain lead
and lead compounds. Observe
the following precautions when
handling the battery:
●When working with the battery,
always wear safety glasses and
take care not to allow any bat-
tery fluids (acid) to come into
contact with skin, clothing or the
vehicle body.
●Do not lean over the battery.
●In the event that battery fluid
comes into contact with the skin
or eyes, immediately wash the
affected area with water and
seek medical attention.
Place a wet sponge or cloth
over the affected area until
medical attention can be
received.

6708-2. Steps to take in an emergency
1Stop the vehicle in a safe
place and turn off the air con-
ditioning system, and then
stop the engine.
2 If you see steam:
Carefully lift the hood after
the steam subsides.
If you do not see steam:
Carefully lift the hood.
WARNING
●Always wash your hands after
handling the battery support,
terminals, and other battery-
related parts.
●Do not allow child ren near the
battery.
■When replacing the battery
For information regarding battery
replacement, contact your Toyota
dealer.
NOTICE
■When handling jumper cables
When connecting the jumper
cables, ensure that they do not
become entangled in the cooling
fan or engine drive belt.
If your vehicle over-
heats
The following may indicate
that your vehicle is over-
heating.
 The needle of the engine
coolant temperature gauge
( P.82, 85) enters the red
zone or a loss of engine
power is experienced. (For
example, the vehicle speed
does not increase.)
 “Engine Coolant Temp High
Stop in a Safe Place See
Owner’s Manual” is shown
on the multi-information dis-
play.
 Steam comes out from
under the hood.
Correction procedures

6718-2. Steps to take in an emergency
8
When trouble arises
3After the engine has cooled
down sufficiently, inspect the
hoses and radiator core (radi-
ator) for any leaks.
Radiator
Cooling fan
If a large amount of coolant leaks,
immediately contact your Toyota
dealer.
4The coolant level is satisfac-
tory if it is between the
“FULL” and “LOW” lines on
the reservoir.
Reservoir
“FULL” line
“LOW” line
5 Add coolant if necessary.
Water can be us ed in an emer-
gency if coolant is unavailable.
If water was added in an emer-
gency, have the vehicle inspected at your Toyota dealer as soon as
possible.
6
Start the engine and turn the
air conditioning system on to
check that the radiator cool-
ing fan operates and to check
for coolant leaks from the
radiator or hoses.
The fan operates when the air con-
ditioning system is turned on imme-
diately after a cold start. Confirm
that the fan is operating by check-
ing the fan sound and air flow. If it is
difficult to check th ese, turn the air
conditioning system on and off
repeatedly. (The fa n may not oper-
ate in freezing temperatures.)
7 If the fan is not operating:
Stop the engine immediately
and contact your Toyota
dealer.
If the fan is operating:
Have the vehicle inspected at
the nearest Toyota dealer.
8 Check if “Engine Coolant
Temp High Stop in a Safe
Place See Owner’s Manual”
is shown on the multi-infor-
mation display.
If the message does not disappear:
Stop the engine and contact your
Toyota dealer.
If the message is not displayed:
Have the vehicle inspected at the
A
B
A
B
C

6728-2. Steps to take in an emergency
nearest Toyota dealer.
1Stop the engine. Set the
parking brake and shift the
shift lever to P.
2 Remove the mud, snow or
sand from around the stuck
tire.
3 Place wood, stones or some
other material to help provide
traction under the tires.
4 Restart the engine.
5 Shift the shift lever to D or R
and release the parking
brake. Then, while exercising
caution, depress the acceler-
ator pedal.
■When it is difficult to free the
vehicle
Press to turn off TRAC.
(  P.365)
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.
●Keep hands and clothing (espe-
cially a tie, a scarf or a muffler)
away from the fan and belts.
Failure to do so m ay cause the
hands or clothing to be caught,
resulting in serious injury.
●Do not loosen the coolant reser-
voir cap while the engine and
radiator are hot. High tempera-
ture steam or coolant could
spray out.
NOTICE
■When adding engine coolant
Add coolant slowly after the
engine has cooled down suffi-
ciently. 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 precau-
tions:
●Avoid contaminating the coolant
with foreign matter (such as
sand or dust etc.).
●Do not use any coolant additive.
If the vehicle becomes
stuck
Carry out the following pro-
cedures if the tires spin or
the vehicle becomes stuck
in mud, dirt or snow:
Recovering procedure