2022 TOYOTA HIGHLANDER key battery

4877-2. Steps to take in an emergency
7
When trouble arises
■When the electronic key does
not work properly
●Make sure that the smart key sys-
tem has not been deactivated in
the customization setting. If it is
off, turn the function on. (Custom-
izable features: P.521)
●Check if battery-saving mode is
set. If it is set, cancel the function.
( P.135)
■Unlocking the door
Use the mechanical key
( P.116) in order to perform the
following operations: 1
Locks all the doors
2 Unlocks all the doors
Turning the key unlocks the driver’s
door. Turning the key again unlocks
the other doors.
■Key linked functions
1 Closes the windows and the
moon roof
* (turn and hold)
2 Opens the windows and the
moon roof
* (turn and hold)
These settings mus t be customized
at your Toyota dealer.
*: If equipped
If the electronic key
does not operate prop-
erly
If communication between
the electronic key and vehi-
cle is interrupted ( P.135)
or the electronic key cannot
be used because the battery
is depleted, the smart key
system and wireless remote
control cannot be used. In
such cases, the doors can
be opened and the engine
can be started by following
the procedure below.
Locking and unlocking
the doors

4887-2. Steps to take in an emergency
1Ensure 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 switch will turn to
ACC.
3Firmly depress the brake
pedal and check that is shown on the multi-informa-
tion 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 park-
ing brake, and press the engine
switch as you normally do when
stopping the engine.
■Replacing the key battery
As the above proce dure is a tempo-
rary measure, it is recommended
that the electronic key battery be
replaced immediately when the bat-
tery is depleted. ( P.434)
■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 changed each time
the switch is pressed. ( P.204)
WARNING
■When using the mechanical
key and operating the power
windows or moon roof (if
equipped)
Operate the power window or
moon roof after checking to make
sure that there is n o possibility of
any passenger having any of their
body parts caught in the window
or moon roof. Al so, do not allow
children to operate the mechani-
cal key. It is possible for children
and other passengers to get
caught in the power window or
moon roof.
Starting the engine

4897-2. Steps to take in an emergency
7
When trouble arises
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.
1Confirm that the electronic
key is being carried.
Vehicles with an alarm: When con-
necting the jumper (or booster)
cables, depending on the situation,
the alarm may activate and doors
locked. ( P. 7 4 )
2 Open the hood. ( P.408)
3 Connect 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
If the vehicle batter y
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 Toy-
ota dealer or a qualified
repair shop.
Restarting the engine

4917-2. Steps to take in an emergency
7
When trouble arises
traffic.
■When the battery is removed or
discharged
●Information stored in the ECU is
cleared. When the battery is
depleted, have the vehicle
inspected at you r 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 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.)
■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, i t 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 se cond 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 off.
If you are unsure what mode the
engine switch wa s 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 per formance 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 per formance 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)
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.486)
 If you lose your electronic
keys, the risk of vehicle theft
increases significantly. Con-
tact your Toyota dealer imme-
diately. ( P.486)
 Is the electronic key battery
weak or depleted? ( P.434)
 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 electronic key battery
weak or depleted?
In this case, the engine can be
started in a temporary way.
(  P.489)
 Is the battery discharged?
( P.490)
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
Dynamic Torque Vectoring AWD system ................................... 319
E
Eco drive mode ...................... 311
Eco Driving Indicator . 86, 95, 106
Eco Driving Indicator Light86, 95
EDR (Event data recorder)......... 8
Elapsed time ....................... 88, 97
Electric Power Steering (EPS) ............................................... 318Warning light ........................ 458
Electronic key ......................... 114 Battery-saving function......... 134
If the electronic key does not operate properly ................. 488
Replacing the battery ........... 434
Electronic roof sunshade Jam protection function ........ 174
Operation ............................. 173
Emergency flashers ............... 448
Emergency, in case of If a warning buzzer sounds .. 456
If a warning light turns on ..... 456
If a warning message is dis-played................................. 467
If the battery is discharged ... 490
If the electronic key does not operate properly ................. 488
If the engin e will not start ..... 485
If the fuel filler door cannot be opened ............................... 487
If the vehicle is submerged or water on the road is rising .. 449
If you have a flat tire ............. 471
If you lose your keys ............ 486
If you think something is wrong ........................................... 454
If your vehicle becomes stuck ........................................... 496
If your vehicle has to be stopped in an emergency................. 448 If your vehicle needs to be towed
...........................................451
If your vehicle ove rheats ......494
Engine ACCESSORY mode . ............204
Compartment........................410
Engine switch .......................202
Fuel pump shut off system ...455
Hood .....................................408
How to start the engine ........202
Identification number ............501
If the engine will not start......485
If your vehicle has to be stopped in an emergency .................448
Ignition switch (engine switch) ...........................................202
Overheating ..........................494
Tachometer.............................81
Engine coolant Capacity ...............................503
Checking ..............................413
Preparing and checking before winter ..................................324
Engine coolant temperature gauge .......................................81
Engine immobilizer system .....71
Engine oil Capacity ...............................502
Checking ..............................410
Preparing and checking before winter ..................................324
Warning light.........................457
Engine oil maintenance data .412
Engine switch .........................202 Auto power off fun ction .........205
Changing the engine switch modes.................................204
If your vehicle has to be stopped in an emergency .................448
EPS (Electric Po wer Steering)
...............................................318 Warning light.........................458

556Alphabetical Index
Manual air conditioning system........................................... 334
Outside rear view mirrors ... 335, 341, 345
Rear automatic air conditioning system ................................ 354
Rear manual air conditioning system ................................ 352
Seat heaters ......................... 358
High mounted stoplight Replacing light bulbs ............ 439
Hill-start assist control .......... 318
Hood Open .................................... 408
Hooks Cargo net hooks ................... 369
Coat hooks ........................... 382
Retaining hooks (floor mat) .... 24
Horn ......................................... 153
I
I/M test ..................................... 404
Identification Engine .................................. 501
Vehicle.................................. 500
Ignition switch (engine switch) ............................................... 202Auto power off function ........ 205
Changing the engine switch modes ................................ 204
If your vehicle has to be stopped in an emergency................. 448
Indicators .................................. 78
Initialization Items to initialize................... 533
Maintenance................. 401, 412
Power windows .................... 167
Tire pressure warning system........................................... 423
Inside rear view mirror... 154, 155
Instrument panel light control. 83 Interior lights...........................361
Front interior light .................361
Rear interior light ..................361
Intuitive parking assist Function................................284
Warning message.........286, 287
J
JackPositioning a floor jack .........409
Vehicle-equipped jack ..........472
Jack handle .............................472
Jam protection function Electronic roof sunshade ......174
Moon roof .............................170
Panoramic moon r oof ...........174
Power back door ..................127
Power windows ....................167
K
Keyless entry Smart 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 .................488
If you lose your keys.............486
Key number plate ................. 114
Keyless entry ........ 117, 123, 133
Mechanical key..................... 114
Replacing the battery ...........434
Warning buzzer ....................134
Wireless remote control........ 115
Knee airbags .............................34

559Alphabetical Index
Power steering (Electric power steering system)................... 318Warning light ........................ 458
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 ........................ 462
R
Radar cruise control (dynamic radar cruise control with
full-speed range) .................. 257
Radiator ................................... 414
RCTA Function ............................... 293
Warning message ................ 294
RCTA function......................... 295
Rear automatic air conditioning system ................................... 354
Rear Cross Traffic Alert (RCTA) ............................................... 293
Rear door sunshades ............ 384
Rear fog lights Switch................................... 222
Rear manual air conditioning system ................................... 352
Rear seats ............................... 142 Head restraints ..................... 150
Seat heaters ......................... 358
Rear side marker lights Light switch .......................... 216
Replacing light bulbs ............ 439
Rear turn signal lights Replacing light bulbs ............ 439
Turn signal lever ................... 209 Rear view mirror
Digital Rearview Mirror .........155
Inside rear view mirror ..........154
Outside rear view mirrors .....165
Rear window defogger ..335, 341, 345
Refueling Capacity ...............................501
Fuel types .............................501
If the fuel filler door cannot be opened ...............................487
Opening the fuel tank cap ....227
Replacing Electronic key battery ...........434
Fuses....................................436
Light bulbs ............................439
Tires......................................471
Reporting safety defects for U.S. owners ...................................536
Resetting the message indicat- ing maintenance is required 401
Road Sign Assist ....................269
Rock & Dirt mode ...................312
RSA (Road Sign Assist) .........269
S
Safety Connect .........................65
Seat belt reminder light..........459
Seat belts...................................27 Automatic Locking Retractor ..28
Child restraint sys tem installation
.............................................52
Cleaning and maintaining the seat belt ..............................397
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 ...459
Seat belt extender ..................28