2021 TOYOTA RAV4 PHEV battery

5447-3. Do-it-yourself maintenance
nal facing up.
4 When installing, reverse the
steps listed.
WARNING
■Battery precautions
Observe the following precautions.
Failure to do so may result in death or
serious injury.
●Do not swallow the battery. Doing
so may cause chemical burns.
●A coin battery or button battery is
used in the electronic key. If a bat -
tery is swallowed, it may cause severe chemical burns in as little as
2 hours and may result in death or
serious injury.
●Keep away new and removed bat -
teries from children.
●If the cover cannot be firmly closed,
stop using the electronic key and stow the key in t he place where
children cannot reach, and then
contact any auth orized Toyota retailer or Toyota authorized
repairer, or any reliable repairer as
soon as possible.
●If you accidentally swallow a battery
or put a battery into a part of your body, get emergency medical atten -
tion immediately.
■To prevent battery explosion or leakage of flammable liquid or
gas
●Replace the batt ery with a new bat- tery of the same type. If a wrong
type of battery i s used, it may
explode.
●Do not expose batteries to
extremely low pressure due to high altitude or extremely high tempera -
tures.
●Do not burn, break or cut a battery.
■Certification for the electronic key battery
CAUTION
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT
TYPE.
DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUC -
TIONS
NOTICE
■When replacing the battery
Use a flathead screwdriver of appro - priate size. Applying excessive force
may deform or damage the cover.
■For normal operation after
replacing the battery
Observe the following precautions to prevent accidents:
●Always work with dry hands.
Moisture may cause the battery to rust.
●Do not touch or move any other component inside the remote con -
trol.
●Do not bend either of the battery
terminals.

8
559
8
When trouble arises
When trouble arises
8-1. Essential information
Emergency flashers .......... 560
If your vehicle has to be
stopped in an emergency 560
If the vehicle is trapped in rising
water ............................... 561
8-2. Steps to take in an emer -
gency
If your vehicle needs to be
towed .............................. 563
If you think something is wrong
....................................... 566
If a warning light turns on or a
warning buzzer sounds... 568
If a warning message is dis -
played ............................. 578
If you have a flat tire (vehicles
without spare tire) ........... 582
If you have a flat tire (vehicles
with spare tire) ................ 593
If the hybrid system will not
start ................................ 601
If you lose your keys ......... 603
If the fuel filler door cannot be
opened ........................... 603
If the electronic key does not
operate properly ............. 604
If the 12-volt battery is dis -
charged .......................... 606
If your vehicle overheats... 611
If the vehicle becomes stuck
....................................... 615

5608-1. Essential information
8-1.Essential information
Press the switch.
All the turn signal lights will flash.
To turn them off, press the switch once
again.
■Emergency flashers
●If the emergency flashers are used for a long time while the hybrid system is
not operating (while the “READY” indi -
cator is not illumi nated), the 12-volt battery may discharge.
●If any of the SRS airbags deploy (inflate) or in the event of a strong rear
impact, the emergency flashers will
turn on automatically.
The emergency flashers will turn off automatically after operating for
approximately 20 m inutes. To manu-
ally turn the emerg ency flashers off, press the switch twice. (The emer -
gency flashers may not turn on auto -
matically depending on the force of the impact and co nditions of the colli-
sion.)
1 Steadily step on the brake pedal
with both feet and firmly depress
it.
Do not pump the brake pedal repeat -
edly as this will in crease the effort required to slow the vehicle.
2 Shift the shift lever to N.
If the shift lever is shifted to N
3 After slowing down, stop the
vehicle in a saf e place by the
road.
4 Stop the hybrid system.
If th e s hif t le ver ca nn o t b e s hif te d
to N
3 Keep depressing the brake
pedal with both feet to reduce
vehicle speed as much as possi -
ble.
Press and hold the power switch for 2
consecutive seconds or more, or press
Emergency flashers
The emergency flashers are
used to warn other drivers
when the vehicle has to be
stopped in the road due to a
breakdown, etc.
Operating instructions
If your vehicle has to be
stopped in an emer-
gency
Only in an emergency, such as
if it becomes impossible to
stop the vehicle in the normal
way, stop the vehicle using the
following procedure:
Stopping the vehicle

561
8
8-1. Essential information
When trouble arises
it briefly 3 times or more in succession.
5Stop the vehicle in a safe place
by the road.
■If emergency stopped
The functions of the air conditioning, etc.
may be partially limited in order to reduce the power consumption of the
12-volt battery.
 Remove the seat belt first.
 If the door can be opened, open
the door and exit the vehicle.
 If the door can not be opened,
open the window using the
power window s witch and exit
the vehicle through the window.
 If the window can not be opened
using the power window switch,
remain calm, wait until the water
level inside the vehicle rises to
the point that the water pressure
inside of the vehicle equals the
water pressure o utside of the
vehicle, and then open the door
and exit the vehicle.
WARNING
■If the hybrid system has to be
turned off while driving
Turning the hybrid system off while
driving will not c ause a loss of steer-
ing or braking control. However, power assist for the steering wheel
may be lost making it difficult to steer
smoothly before st opping the vehicle depending on the remaining charge in
the 12-volt battery or usage condi-
tions. Decelerate as much as possible before turning off the hybrid system.
If the vehicle is trapped
in rising water
In the event the vehicle is sub-
merged in wate r, remain calm
and perform the following.
WARNING
■Using an emergency hammer* f o r
emergency escape
The rear side windows and rear win - dow of this vehicl e can be shattered
by an emergency hammer* used for
emergency escape, however, since the windshield and front side windows
are laminated glass they can not be
shattered by an emergency hammer*.*: Contact any authorized Toyota
retailer or Toyota authorized
repairer, or any reliable repairer, or
aftermarket accessory manufac -
turer for further information about
an emergency hammer.

5768-2. Steps to take in an emergency
■Rear passengers’ seat belt reminder lights*1 (warning buzzer)*2
*1: This light illuminates on the multi-information display.
*2: Rear passengers’ seat belt warning buzzer:
The rear passengers’ seat belt warning buzzer sounds to alert the rear passen-
ger that his or her seat belt is not fastened. If the seat belt is unfastened, the
buzzer sounds intermittently for a certain period of time after the vehicle reaches
a certain speed.
■Warning buzzer
In some cases, the b uzzer may not be heard because of noisy place or an
audio sound.
■Front passenger detection sensor,
seat belt reminder and warning buzzer
●If luggage is place d on the front pas-
senger seat, the front passenger detection sensor may cause the warn -
ing light to flash and the warning
buzzer to sound even if a passenger is not sitting in the seat.
●If a cushion is place d on the seat, the sensor may not detect a passenger,
and the warning light may not operate
properly.
■If the malfunction indicator lamp comes on while driving
The malfunction indicator lamp will
come on if the fuel tank becomes com- pletely empty. If the fuel tank is empty,
refuel the vehicle i mmediately. The mal-
function indicator lamp will go off after several trips.
If the malfunction in dicator lamp does
not go off, contact any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer as soon
as possible.
■Electric power steering system warning light (warning buzzer)
When the 12-volt battery charge
becomes insufficien t or the voltage tem-
porarily drops, the electric power steer -
ing system warning light may come on and the warning buzzer may sound.
At this time, the func tions of the air con-
ditioning, etc. may be partially limited in order to reduce the power consumption
of the 12-volt battery.
■When the tire pressure warning
light comes on
Inspect the tires to check if a tire is
punctured.
If a tire is punctured: →P.582, 593
If none of the tires are punctured:
Turn the power switch to OFF then turn
it to ON. Check if the tire pressure warn - ing light comes on or blinks.
If the tire pressure warning light blinks
for approximately 1 minute then stays
on
There may be a malfunction in the tire
pressure warning system. Have the
vehicle inspected by any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer immedi -
ately.
If the tire pressure warning light
comes on
1 After the temperature of the tires has
lowered sufficiently, check the infla - tion pressure of each tire and adjust
them to the specified level.
2 If the warning light does not turn off
even after several minutes have
Warning lightDetails/Actions
Warns the rear passengers to fasten their seat belts
→ Fasten the seat belt.

579
8
8-2. Steps to take in an emergency
When trouble arises
A warning message about an operation
of the brake pedal m ay be shown while
the driving suppor t systems such as
PCS (Pre-Collis ion system) (if
equipped) or the dynamic radar cruise
control with full- speed range (if
equipped) is operating. If a warning
message is shown, be sure to deceler -
ate the vehicle or follow an instruction
shown on the multi-in formation display.
• A warning message is shown when
Brake Override System operates. ( →P.301, 574)
• A warning message is shown when
Drive-Start Control or Parking Support Brake function (if equipped) operates
( →P.301, 420). Follow the instructions
on the multi-information display.
●If a message about an operation of
the power switch is shown
An instruction for operation of the power
switch is shown when the incorrect pro -
cedure for starting the hybrid system is
performed or the power switch is oper -
ated incorrectly. Follow the instructions
shown on the multi-in formation display
to operate the pow er switch again.
●If a message about a shift lever opera-
tion is shown
To prevent the shift lever from being
operated incorrectly or the vehicle from
moving unexpectedly, a message that
requires shifting the shift lever may be
shown on the multi-in formation display.
In that case, follow the instruction of the
message and shift the shift lever.
●If a message or image about an
open/close state of a part or replen-
ishment of a consumable is shown
Confirm the part indicated by the multi-
information display or a warning light,
and then perform the coping method
such as closing the open door or replen -
ishing a consumable.
■If a message that indicates the
need for visiting any authorized Toyota retailer or Toyota autho -
rized repairer, or any reliable
repairer is displayed
The system or part sh own on the multi-
information display is malfunctioning.
Have the vehicle inspected by any authorized Toyota r etailer or Toyota
authorized repairer, or any reliable
repairer immediately.
■If a message that indicates the need for referring to Owner’s Man -
ual is displayed
●If the following messages are shown,
follow the instructions, accordingly.
• “Blind Spot Monitor Unavailable” ( →P.394, 578)
• “RCTA Unavailable” ( →P.394, 578)
• “Engine Coolant Temp High” ( →P.611)
• “Exhaust Filter Full” ( →P.437)
●If the following messages are shown,
there may be a malfunction. Immedi -
ately stop the vehicle in a safe place and contact any authorized Toyota
retailer or Toyota authorized repairer,
or any reliable repairer. Continuing to drive the vehicle may be dangerous.
• “Plug-in charging system malfunction”
• “Hybrid System Malfunction” • “Charging System Malfunction”
• “Check Engine”
• “Hybrid Battery System Malfunction” • “Accelerator System Malfunction”
• “Smart Entry & Start System Malfunc -
tion”
●If the following messages are shown,
there may be a malfunction. Immedi - ately have the vehi cle inspected by
any authorized Toyota retailer or
Toyota authorized repairer, or any reli -
able repairer. • “Oil Pressure Low”
• “Braking Power Low”
●If any of the following messages are
shown on the multi-information dis -
play, the vehicle ma y have run out of fuel. Stop the vehicle in a safe place
and, if the fuel leve l is low, refuel the

5808-2. Steps to take in an emergency
vehicle.
• “Hybrid System Stopped” • “Engine Stopped”
●If “Maintenance required for DCDC converter cooling parts See Owner’s
Manual” is shown, the filter may be
clogged, the air intake vent may be blocked, or there may be a gap in the
duct. Therefore, perform the following
correction procedure. • If the air intake v ent or filter of the
DC/DC converter are dirty, perform
the procedures on P.536 to clean them.
• If the warning message is shown
when the air intake vent and filter of the DC/DC converter are not dirty,
have the vehicle inspected at any
authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer.
●If “12-Volt Battery Charging System
Malfunction Stop in a Safe Place See
Owner’s Manual” is shown
Indicates a malfunct ion in the vehicle’s
charging system. Pull over and stop the
vehicle as soon as it is safe to do so.
While the message is displayed, the
functions of the air conditioning, etc.
may be partially limited in order to
reduce the power consumption of the
12-volt battery.
■If “Hybrid System Overheated Out - put Power Reduced” is shown
The message may be shown when driv -
ing under severe ope rating conditions. (For example, when driving up a long
steep hill or drivi ng up a steep hill in
reverse.)
Coping method: →P.611
■If “Traction Battery Needs to be Protected Refrain from the Use of N
Position” is shown
This message may be displayed when the shift lever is in N.
As the hybrid battery (traction battery)
cannot be charged when the shift lever
is in N, shift the shift lever to P when the
vehicle is stopped.
■If “Traction Battery Needs to be Protected Shift into P to Restart” is
shown
This message is displayed when the hybrid battery (trac tion battery) charge
has become extremely low because the
shift lever has been left in N for a certain amount of time.
When operating the vehicle, shift to P
and restart the hybrid system.
■If “Shift to P when Parked” is shown
Message is displayed when the driver’s
door is opened without turning the power switch to OFF with the shift lever
in any position other than P.
Shift the shif t lever to P.
■If “Shift is in N Release Accelerator Before Shifting” is shown
Message is displaye d when the acceler-
ator pedal has been depressed and the shift lever is in N. Release the accelera -
tor pedal and shift the shift lever to D or
R.
■If “Press Brake when Vehicle is Stopped Hybrid System may Over -
heat” is shown
Message is displaye d when the acceler- ator pedal is depressed to maintain the
vehicle position when stopped on a
upward slope, etc.
If this continues, the hybrid system may
overheat.
Release the accelerator pedal and depress the brake pedal.
■If “Auto Power OFF to Conserve
Battery” is shown
Power was turned off due to the auto -
matic power o ff function.
Next time when starting the hybrid sys -
tem, operate the hybrid system for
approximately 5 minutes to recharge the 12-volt battery.

581
8
8-2. Steps to take in an emergency
When trouble arises
■If “Engine Oil Level Low Add or
Replace” is displayed
The engine oil level may be low. Check
the level of the engine oil, and add
engine oil if necessary. This message may be displayed if the vehicle is
stopped on a slope. Move the vehicle to
a level surface and check if the mes - sage disappears.
■If a message that indicates the mal -
function of fron t camera is dis-
played (if equipped)
The following systems may be sus -
pended until the prob lem shown in the
message is resolved. ( →P.353, 568)
●PCS (Pre-Collision System)*
●LTA (Lane Tracing Assist)*
●Automatic High Beam*
●RSA (Road Sign Assist)*
●Dynamic radar cruise control with full-
speed range*
*: If equipped
■If “Radar Cruise Control Unavail -
able See Owner ’s Manual” is
shown (if equipped)
The dynamic radar cru ise control with full-speed range system (if equipped) is
suspended temporarily or until the prob -
lem shown in the message is resolved. (causes and coping methods: →P.353)
■If “Radar Cruise Control Unavail-
able” is shown (if equipped)
The dynamic radar cru ise control with full-speed range system (if equipped)
cannot be used temporarily. Use the
system when it bec omes available again.
■Warning buzzer
→ P.576
WARNING
■If a warning light comes on or a
warning buzzer sounds when a
warning message is shown on the multi-information display
→ P.577
NOTICE
■“High Power Consumption Par- tial Limit On AC/Heater Opera -
tion” is frequently shown
There is a possible malfunction relat - ing to the chargin g system or the 12-
volt battery may b e deteriorating.
Have the vehicle inspected by any authorized Toyota retailer or Toyota
authorized repairer, or any reliable
repairer.
■If “Maintenance required For
Traction Battery A t Your Dealer” is shown
The hybrid battery (traction battery) is
scheduled to be inspected or
replaced. Have the vehicle inspected by any authorized Toyota retailer or
Toyota authorized repairer, or any
reliable repairer immediately.
●Continuing to drive the vehicle with -
out having the hybr id battery (trac-
tion battery) inspected will cause the hybrid system not to start.
●If the hybrid system does not start, contact any autho rized Toyota
retailer or Toyota authorized
repairer, or any reliable repairer immediately.