key battery TOYOTA HIGHLANDER 2021 (in English) Owner's Manual

4937-2. Steps to take in an emergency
7
When trouble arises
HIGHLANDER_Utraffic.
■When the battery is removed or
discharged
●Information stored 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.533)
■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 stored in the battery
will discharge gradually even when
the vehicle is not in 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 may be unable to
start. (The battery recharges auto-
matically during driving.)
■After jump starting the vehicle
(Vehicles with Stop & Start sys-
tem)
Be sure to disable the Stop & Start
system so that the battery can be
charged. ( P.273)
■When recharging or replacing
the battery
●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 w ill start normally
after the second a ttempt. 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 battery was dis-
charged. Before disconnecting the
battery, turn the engine switch off.
If you are unsure what mode the
engine switch was in before the
battery discharged, be especially
careful when reconnecting the
battery.
●Vehicles with power back door:
The power back door must be ini-
tialized. ( P.129)
●Vehicles with Stop & Start system:
The Stop & Start system may not
automatically stop the engine for
up to an hour.
■When replacing the battery
●Use a Central Degassing type bat-
tery (European Regulations).
●Vehicles with Stop & Start system:
Use a genuine battery specifically
designed for use with the Stop &
Start system or a battery with
equivalent specifications to a gen-
uine battery. If an unsupported
battery is used, Stop & Start sys-
tem functions may be restricted to
protect the battery.
Also, battery performance may
decrease and the engine may not
be able to restart. Contact your
Toyota dealer for details.
●Vehicles without Stop & Start sys-
tem: Use a battery that the case
size is same as the previous one
(LN3), 20 hour rate capacity
(20HR) is equivalent (70Ah) or
greater, and performance rating
(CCA) is equivalent (603A) or
greater.
Vehicles with Stop & Start system:
Use a battery that the case size is
same as the previous one (LN3), 20
hour rate capacity (20HR) is equiva-
lent (65Ah) or greater, and perfor-
mance rating (CCA) is equivalent
(603A) or greater.
• If the sizes differ, the battery can- not be properly secured.

548What to do if... (Troubleshooting)
HIGHLANDER_U
1-1.What to do if... (Troubleshooting)What to do if... (Troubleshooting)
If you lose your mechanical
keys, new genuine mechani-
cal keys can be made by your
Toyota dealer. ( P.487)
 If you lose your electronic
keys, the risk of vehicle theft
increases significantly. Con-
tact your Toyota dealer imme-
diately. ( P.487)
 Is the electronic key battery
weak or depleted? ( P.436)
 Is the engine switch in ON?
When locking the doors, turn the
engine switch off. ( P.203)
 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.135)
 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.120)
 Did you press the engine
switch while firmly depress-
ing the brake pedal?
( P.202)
 Is the shift lever in P?
( P.202)
 Is the electronic key any-
where detectable inside the
vehicle? ( P.134)
 Is the steering wheel
unlocked? ( P.202)
 Is the electronic key battery
weak or depleted?
In this case, the engine can be
started in a temporary way.
( P.490)
 Is the battery discharged?
( P.491)
If you have a problem,
check the following before
contacting your Toyota
dealer.
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 engine does not start

554Alphabetical Index
HIGHLANDER_UDynamic Torque Vectoring AWD
system ................................... 322
E
Eco drive mode ...................... 314
Eco Driving Indicator . 86, 95, 106
Eco Driving Indicator Light86, 95
EDR (Event data recorder)......... 8
Elapsed time ....................... 88, 97
Electric Power Steering (EPS) ............................................... 321Warning light ........................ 460
Electronic key ......................... 114 Battery-saving function......... 134
If the electronic key does not operate properly ................. 489
Replacing the battery ........... 436
Electronic roof sunshade Jam protection function ........ 174
Operation ............................. 173
Emergency flashers ............... 450
Emergency, in case of If a warning buzzer sounds .. 458
If a warning light turns on ..... 458
If a warning message is dis-played................................. 468
If the battery is discharged ... 491
If the electronic key does not operate properly ................. 489
If the engine will not start ..... 486
If the fuel filler door cannot be opened ............................... 488
If the vehicle is trapped in rising water .................................. 451
If you have a flat tire ............. 472
If you lose your keys ............ 487
If you think something is wrong ........................................... 456
If your vehicle becomes stuck ........................................... 497
If your vehicle has to be stopped in an emergency................. 450 If your vehicle ne
eds to be towed
...........................................453
If your vehicle overheats ......495
Engine ACCESSORY mode .............205
Compartment........................412
Engine switch .......................202
Fuel pump shut off system ...457
Hood .....................................410
How to start the engine ........202
Identification number ............501
If the engine will not start......486
If your vehicle has to be stopped in an emergency .................450
Ignition switch (engine switch) ...........................................202
Overheating ..........................495
Tachometer.............................81
Engine coolant Capacity ...............................503
Checking ..............................415
Preparing and checking before winter ..................................327
Engine coolant temperature gauge .......................................81
Engine immobilizer system .....71
Engine oil Capacity ...............................502
Checking ..............................412
Preparing and checking before winter ..................................327
Warning light.........................459
Engine oil maintenance data .414
Engine switch .........................202 Auto power off function .........205
Changing the engine switch modes.................................205
If your vehicle has to be stopped in an emergency .................450
EPS (Electric Power Steering) ...............................................321Warning light.........................460

556Alphabetical Index
HIGHLANDER_UManual air conditioning system
........................................... 336
Outside rear view mirrors ... 337, 343, 347
Rear automatic air conditioning system ................................ 356
Rear manual air conditioning system ................................ 354
Seat heaters ......................... 360
High mounted stoplight Replacing light bulbs ............ 441
Hill-start assist control .......... 321
Hood Open .................................... 410
Hooks Cargo net hooks ................... 371
Coat hooks ........................... 384
Retaining hooks (floor mat) .... 24
Horn ......................................... 153
I
I/M test ..................................... 406
Identification Engine .................................. 501
Vehicle.................................. 500
Ignition switch (engine switch) ............................................... 202Auto power off function ........ 205
Changing the engine switch modes ................................ 205
If your vehicle has to be stopped in an emergency................. 450
Indicators .................................. 78
Initialization Items to initialize................... 533
Maintenance................. 403, 414
Power windows .................... 167
Tire pressure warning system........................................... 425
Inside rear view mirror... 154, 155
Instrument panel light control. 83 Interior lights...........................363
Front interior light .................363
Rear interior light ..................363
Intuitive parking assist Function................................284
Warning message.................287
J
JackPositioning a floor jack ......... 411
Vehicle-equipped jack ..........473
Jack handle .............................473
Jam protection function Electronic roof sunshade ......174
Moon roof .............................170
Panoramic moon roof ...........174
Power back door ..................127
Power windows ....................167
K
Keyless entrySmart key system .................133
Wireless remote control........ 115
Keys Battery-saving function .........134
Electronic key ....................... 114
Engine switch .......................202
If the electronic key does not operate properly .................489
If you lose your keys.............487
Key number plate ................. 114
Keyless entry ........ 117, 123, 133
Mechanical key..................... 114
Replacing the battery ...........436
Warning buzzer ....................134
Wireless remote control........ 115
Knee airbags .............................34

559Alphabetical Index
HIGHLANDER_UPower steering (Electric power
steering system)................... 321Warning light ........................ 460
Power windows Door lock linked window opera-tion ..................................... 168
Jam protection function ........ 167
Operation ............................. 167
Window lock switch .............. 169
Pre-Collision System (PCS) Function ............................... 235
PCS OFF switch................... 238
Warning light ........................ 464
R
Radar cruise control (dynamic radar cruise control with
full-speed range) .................. 257
Radiator ................................... 416
RCTA Function ............................... 292
Warning message ................ 293
RCTA function......................... 294
Rear automatic air conditioning system ................................... 356
Rear Cross Traffic Alert (RCTA) ............................................... 292
Rear door sunshades ............ 386
Rear fog lights Switch................................... 222
Rear manual air conditioning system ................................... 354
Rear seats ............................... 142 Head restraints ..................... 150
Seat heaters ......................... 360
Rear side marker lights Light switch .......................... 216
Replacing light bulbs ............ 441
Rear turn signal lights Replacing light bulbs ............ 441
Turn signal lever ................... 210 Rear view mirror
Digital Rearview Mirror .........155
Inside rear view mirror ..........154
Outside rear view mirrors .....165
Rear window defogger ..337, 343, 347
Refueling Capacity ...............................501
Fuel types .............................501
If the fuel filler door cannot be opened ...............................488
Opening the fuel tank cap ....227
Replacing Electronic key battery ...........436
Fuses....................................438
Light bulbs ............................441
Tires......................................472
Reporting safety defects for U.S. owners ...................................536
Resetting the message indicat- ing maintenance is required 403
Road Sign Assist ....................269
Rock & Dirt mode ...................315
RSA (Road Sign Assist) .........269
S
Safety Connect .........................65
Seat belt reminder light..........461
Seat belts...................................27 Automatic Locking Retractor ..28
Child restraint system installation.............................................52
Cleaning and maintaining the seat belt ..............................399
Emergency Locking Retractor 28
How to wear your seat belt .....28
How your child should wear the seat belt ................................28
Pregnant women, proper seat belt use .................................27
Reminder light and buzzer ...461
Seat belt extender ..................28