2021 TOYOTA RAV4 PLUG-IN HYBRID key battery

6048-2. Steps to take in an emergency
Therefore, fill the fuel tank carefully and
slowly.
■When the electronic key does not work properly
●Make sure that the smart entry & start system has not been deactivated in
the customization setting. If it is off,
turn the function on. (Customizable features: →P.633)
●Check if battery-saving mode is set. If
it is set, cancel the function. (→P.225)
Use the mechanical key (→P.204)
If the electronic key
does not operate prop-
erly
If communication between the
electronic key and vehicle is
interrupted ( →P.225) or the
electronic key cannot be used
because the battery is
depleted, the smart entry &
start system, push button start
and wireless re mote control
cannot be used. In such cases,
the doors can be opened and
the hybrid system can be
started by following the proce -
dure below.
NOTICE
■In case of a smart entry & start
system malfunction, or other key
related problems
Take your vehicle with all the elec-
tronic keys provided with your vehicle
to any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer.
Locking and unlocking the
doors

6068-2. Steps to take in an emergency
played on the multi-information
display.
4 Press the power switch shortly
and firmly.
In the event that the hybrid system
still cannot be st arted, contact any
authorized Toyota retailer or Toyota
authorized repairer, or any reliable
repairer.
■Stopping the hybrid system
Shift the shift lever to P, set the parking
brake and press the power switch as you normally do when stopping the
hybrid system.
■Replacing the key battery
As the above procedure is a temporary measure, it is rec ommended that the
electronic key battery be replaced
immediately when the battery is depleted. ( →P.543)
■Alarm (if equipped)
Using the mechanical key to lock the
doors will not set the alarm system.
If a door is unlocked using the mechani -
cal key when the al arm system is set,
the alarm may be triggered. ( →P.78)
■Changing power switch modes
Release the brake pedal and press the power switch in step 3 above.
The hybrid system does not start and
modes will be changed each time the switch is pressed. ( →P.320)
If you have a set of jumper (or
booster) cables an d a second vehi-
cle with a 12-volt battery, you can
jump start your vehicle by following
the steps below.
1 Vehicles with alarm (→P.78)
Confirm that the electronic key
is being carried.
When connecting the jumper (or booster) cables, depending on the situ -
ation, the alarm ma y activate and the
doors locked. ( →P.79)
2Open the hood (→P.498) and
fuse box cover.
If the 12-volt battery is
discharged
The following procedures may
be used to start the hybrid sys -
tem if the vehicle’s 12-volt bat -
tery is discharged.
You can also call any autho -
rized Toyota ret ailer or Toyota
authorized repairer, or any reli -
able repairer or a qualified
repair shop.
Restarting the hybrid sys -
tem

6088-2. Steps to take in an emergency
minutes to recharge the 12-volt
battery of your vehicle.
6 Open and close any of the doors
of your vehicle with the power
switch off.
7 Maintain the engine speed of
the second vehicle and start the
hybrid system of your vehicle by
turning the power switch to ON.
8 Make sure the “READY” indica-
tor comes on. If the indicator
light does not come on, contact
any authorized Toyota retailer or
Toyota authorized repairer, or
any reliable repairer.
9 Once the hybrid system has
started, remove the jumper
cables in the exact reverse
order from which they were con -
nected.
10 Close the exclusive jump start-
ing terminal cover, and reinstall
the fuse box cover to its original
position.
Once the hybrid system starts,
have the vehicle inspected at any
authorized Toyota retailer or Toyota
authorized repairer, or any reliable
repairer as soon as possible.
■Starting the hybrid system when
the 12-volt battery is discharged
The hybrid system c annot be started by push-starting.
■To prevent 12-volt battery dis -
charge
●Turn off the headlights and the audio
system while the hybrid system is off.
●Turn off any unnecessary electrical
components when the vehicle is run - ning at a low speed for an extended
period, such as in heavy traffic.
■When the 12-volt battery is
removed or discharged
●Information stored in the ECU is
cleared. When the 12 -volt battery is depleted, have the vehicle inspected
at any authorized Toyota retailer or
Toyota authorized repairer, or any reli - able repairer.
●Some systems may r equire initializa- tion. ( →P.643)
■When removing the 12-volt battery
terminals
When the 12-volt batte ry terminals are removed, the in formation stored in the
ECU is cleared. Before removing the 12-
volt battery termi nals, contact any authorized Toyota r etailer or Toyota
authorized repairer, or any reliable
repairer.
■Charging the 12-volt battery
The electricity stor ed in the 12-volt bat-
tery will discharge gr adually even when
the vehicle is not in use, due to natural discharge and the dr aining effects of
certain electrical appliances. If the vehi -
cle is left for a long time, the 12-volt bat- tery may discharge, and the hybrid
system may be unable t o start. (The 12-
volt battery recharges automatically while the hybrid syst em is operating.)
■When recharging or replacing the
12-volt battery
●In some cases, it may not be possible
to unlock the doors using the smart
entry & start system when the 12-volt
battery is discharged. Use the wire - less remote control o r the mechanical
key to lock or unlock the doors.
●The hybrid system may not start on
the first attempt after reinstalling the
12-volt battery. In t hat case, start the hybrid system in t he same manner as
when the electr onic key does not
operate properly ( →P.605). This is not

6309-2. Customization
Some function settings are changed simultaneously with other functions
being customized. Contact any aut horized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer for further details.
Vehicles with navigation system or multimedia system: Settings that can
be changed using the navigation system or multimedia system
Settings that can be changed usi ng the multi-information display
Settings that can be changed by any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer
Definition of symbols: O = Available, – =Not available
■Alarm* (→P.78)
*: If equipped
■Charging system (→P.125, 128)
*: Vehicles with 6.6 kW onboard traction battery charger only
Customizable Features
FunctionDefault
setting
Customized
setting
Deactivates the alarm when the
doors are unlocked using the
mechanical key
OffOn––O
FunctionDefault
setting
Customized
setting
“Charging Current”MAX8A–O–16A*
“Battery Heater”OnOff–O–
“Battery Cooler”OnOff–O–
A
B
C
ABC
ABC

646What to do if... (Troubleshooting)
1-1.What to do if... (Troubleshooting)What to do if... (Troubleshooting)
If you lose your mechanical keys,
new genuine mechanical keys
can be made by any authorized
Toyota retailer or Toyota autho -
rized repairer, or any reliable
repairer. ( →P.603)
 If you lose your electronic keys,
the risk of vehicle theft increases
significantly. Contact any autho -
rized Toyota retailer or Toyota
authorized repairer, or any reli -
able repairer immediately.
( →P.603)
 Is the key battery weak or
depleted? ( →P.543)
 Is the power switch in ON?
When locking the doors, turn the
power switch off. ( →P.320)
 Is the electronic key left inside
the vehicle?
When locking the doors, make
sure that you have the electronic
key on your person.
 The function may not operate
properly due to the condition of
the radio wave. ( →P.225)
 Is the child-protector lock set?
The rear door cannot be opened
from inside the vehicle when the
lock is set. Open the rear door
from outside and then unlock the
child-protector lock. ( →P.209)
 Did you press the power switch
while firmly depressing the brake
pedal? ( →P.317)
 Is the shift lever in P? (→P.317)
 Is the electronic key anywhere
detectable inside the vehicle?
( →P.224)
 Is the steering wheel unlocked?
( →P.318)
 Is the electronic key battery
weak or depleted?
In this case, the hybrid system
can be started in a temporary
If you have a problem, check
the following before contacting
any authorized Toyota retailer
or Toyota authorized repairer,
or any reliable repairer.
The doors cannot be locked,
unlocked, opened or closed
You lose your keys
The doors cannot be locked
or unlocked
The rear door cannot be
opened
If you think something is
wrong
The hybrid system does not
start

652Alphabetical Index
Cruise control ............................. 388
Drive information ........................ 185
Driving information ..................... 181
Dynamic radar cruise control with
full-speed range ....................... 376
Energy monitor........................... 195
Head-up display ...... ................... 191
LTA (Lane-Tracing Assist) ......... 368
Multi-information disp lay ............ 179
Parking Support Brake function . 422
Pre-collision warning . ................. 355
RCTA ......................................... 393
RSA (Road Sign Assist) ............. 373
Toyota parking assi st-sensor ..... 414
Warning messages .... ................ 578
Do-it-yourself maintenance . 494, 496
Door lock
Back door ................................... 210
Side doors .................................. 205
Smart entry & start system......... 223
Wireless remote con trol ............. 203
Doors
Automatic door locking and unlock -
ing system .... ........................... 209
Back door ................................... 210
Door glasses .............................. 291
Door lock .................................... 205
Open door warning buzzer......... 208
Outside rear view mirrors ........... 289
Rear door child-protectors ......... 209
Side doors .................................. 205
Double locking system .................. 77
Drive information .......................... 185
Driver’s seat belt r eminder light.. 575
Driver’s seat position memory .... 273
Driving position memory ............ 273
Memory recall function ............... 274
Drive-start control ........................ 301
Driving
Break-in tips ............................... 301
Correct posture ............................ 33
Driving mode select switch.........434
Plug-in hybrid vehicle driving tips . 99
Procedures ................................. 300
Winter drive tips ......................... 445
Driving information display .........181
Driving mode select switch .........434
Driving position memory .............273
Memory recall function ...............274
Driving support system information
display .........................................184
Dynamic radar cruise control with
full-speed range
Function .....................................376
Warning message ...................... 578
E
eCall ................................................. 65
ECB (Electronically Controlled Brake
System) ....................................... 438
Eco drive mode .............................434
E-Four (Electronic On-Demand AWD
system) .......... ..............................439
Elapsed time.................................. 185
Electric motor
Location........................................ 84
Specification ............................... 620
Electric Power Steering (EPS)
Function .....................................438
Warning light ..............................570
Electronically Cont rolled Brake Sys-
tem (ECB) .................................... 438
Electronic key
Battery-saving function...............224
If the electronic key does not operate
properly .................................... 604
Replacing the battery ................. 543
Electronic sunshade.....................294
Jam protection function .............. 295
Operation ...................................294
Emergency, in case of
If a warning buzzer sounds ........ 568

655Alphabetical Index
HV mode .......................................... 85
Hybrid battery ( traction battery)
Charging .................................... 135
Location ....................................... 94
Specification............................... 621
Hybrid battery ( traction battery)
charge mode ................................. 85
Hybrid system
ACCESSORY mode .................. 320
Acoustic Vehicle Alerting System 92
Brake Override System .............. 301
Drive-Start Control ..................... 301
Emergency shut off system.......... 98
Energy monitor/consumption screen
................................................. 195
High voltage components ............ 94
How to start the hybrid system... 317
Hybrid System Indicator ............. 174
If the hybrid system will not start 601
If your vehicle has to be stopped in
an emergency .......................... 560
Ignition switch (power switch) .... 317
Overheating ............................... 611
Plug-in hybrid system precautions94
Plug-in hybrid vehicle driving tips. 99
Power (ignition) switch ............... 317
Regenerative brakin g ................... 90
Starting the hybrid system ......... 317
Hybrid System Indica tor .............. 174
Hybrid transmission ..................... 321
I
Identification
Engine ........................................ 619
Vehicle ....................................... 618
Ignition switch (pow er switch) .... 317
Auto power off function .............. 320
Changing the powe r switch modes
................................................. 320
If your vehicle has to be stopped in
an emergency .......................... 560
Starting the hybrid system..........317
Illuminated entry system.............. 466
Immobilizer system ........................ 76
Indicators....................................... 168
Initialization
Items to initialize......................... 643
Panoramic moon roof ................. 295
Power back door ........................218
Power windows ........ ..................291
Tire pressure war ning system ....523
Inside rear view mirror ......... 279, 280
Installing a child restraint system to
a front passenger seat ................. 52
Instrument cluster light control... 178
Interior lights ................................. 465
Switch.........................................465
Wattage ......................................626
Intrusion sensor.............................. 79
ISOFIX lower anchorages .............. 62
J
Jack
Positioning a floor jack ...............499
Vehicle-equipped jack ........ 583, 594
Jack handle ...........................583, 594
Jam protection function
Electronic sunshade ................... 295
Panoramic moon roof ................. 295
Power back door opener and closer
.................................................216
Power windows ........ ..................291
K
Keyless entry
Smart entry & star t system .........223
Wireless remote control .............203
Keys ............................................... 202
Battery-saving function...............224
Electronic key .............................202
If the electronic key does not operate

656Alphabetical Index
properly .................................... 604
If you lose your keys .................. 603
Key number plate ....................... 202
Keyless entry ..................... 203, 223
Mechanical key .......................... 204
Power switch .............................. 317
Replacing the battery ................. 543
Warning buzzer .......................... 224
Wireless remote control key....... 203
Knee airbags ................................... 39
L
Lane Tracing Assist (LTA) ........... 362
Operation ................................... 362
Warning messages .... ................ 371
Language (multi-information dis -
play) ..................................... 188, 631
Lever
Auxiliary catch lever ................... 498
Hood lock release l ever ............. 498
Shift lever ................................... 321
Tilt and telescopic steering lock
release lever ............................ 278
Turn signal lever ........................ 325
Wiper lever ......................... 338, 340
License plate lights
Light switch ................................ 332
Replacing light bulbs .................. 548
Light bulbs
Replacing ................................... 548
Wattage...................................... 626
Lights
Automatic High Beam system .... 334
Emergency flasher switch .......... 560
Extended Headlight Lighting system
................................................. 333
Fog light switch .......................... 337
Front interior lights ..................... 465
Headlight switch ...... ................... 332
Illuminated entry system ............ 466
Interior lights .............................. 465
Luggage compartment light........ 212
Personal lights............................ 466
Rear interior light ........................466
Replacing light bulbs ..................548
Turn signal lever......................... 325
Vanity lights ................................476
Wattage ......................................626
Lock steering column................... 318
LTA (Lane Tracing Assist) ........... 362
Operation ...................................362
Warning messages .................... 371
Luggage compartment light 212, 216
Wattage ......................................626
Luggage cover ..............................473
M
Maintenance
Do-it-yourself maintenance ........ 496
Maintenance data..... ..................618
Maintenance requirements......... 494
Malfunction indicator lamp ..........570
Menu icons .................................... 180
Meter
“ODO TRIP” switch .................... 178
Clock .......................................... 179
Head-up display ......................... 191
Indicators.................................... 168
Meter control switches ...............180
Meters ........................................174
Multi-information display ............179
Settings ..............................186, 631
Units ...........................................188
Warning lights .................... 568, 578
Warning messages .................... 189
Meter contro l switches ................. 180
Mirrors
Digital Rear-view Mirror.............. 280
Inside rear view mirror................279
Outside rear view mirror defoggers
.................................................454
Outside rear view mirrors ........... 289