Page 607 of 732

6078-2. Steps to take in an emergency
8
When trouble arises
HIGHLANDER_U (OM0E017U)
*: The engine may not be restarted depending on the vehicle condition.
■Messages displays
The message illustrations used are intended as examples, and may differ
from the image that is actually displayed on the multi-information display.
■ Warning buzzer
→P. 587
Once⎯
The engine switch has been
turned off with the shift lever in
a position other than P.
→ Shift the shift lever to P.
Once⎯
After the engine switch has
been turned off with the shift
lever in a position other than P,
the shift lever has been shifted
to P.
→Turn the engine switch off.
Con-
tinu-
ous
⎯
Indicates that the engine was
stopped in an emergency while
driving
→To restart the engine, shift
the shift lever to N and turn
the engine switch to IGNI-
TION ON mode.
*
Once⎯
Indicates that the engine switch
has been pressed while driving
→Except when emergency
stopping of the vehicle is
needed, immediately
release the engine switch.
Interior
buzzerExterior buzzerWarning messageDetails/Actions
(Flashes)
(Flashes)
(Flashes)
(Flashes)
Page 637 of 732

6378-2. Steps to take in an emergency
8
When trouble arises
HIGHLANDER_U (OM0E017U)
■Stopping the engine
Shift the shift lever to P and press the engine switch as you normally do when
stopping the engine.
■ Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the
electronic key battery be replaced immediately when the battery is depleted.
(→P. 549)
■ Changing engine switch modes
Release the brake pedal and press the engine switch in step above.
The engine does not start and modes will be changed each time the switch is
pressed. ( →P. 222)
■ When the electronic key does not work properly
●Make sure that the smart key system has not been deactivated in the cus-
tomization setting. If it is off, turn the function on.
(Customizable features →P. 680)
● Check if battery-saving mode is set. If it is set, cancel the function.
(→P. 143)
WARNING
■ When using the mechanical key an d operating the power windows or
moon roof
Operate the power window or moon roof after checking to make sure that
there is no possibility of any passenger having any of their body parts
caught in the window or moon roof.
Also, do not allow children to operate the mechanical key. It is possible for
children and other passengers to get caught in the power window or moon
roof.
3
Page 642 of 732

6428-2. Steps to take in an emergency
HIGHLANDER_U (OM0E017U)
■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 by
the Stop & Start system.)
● Turn off any unnecessary electrical components when the vehicle is running
at a low speed for an extended period, such as in heavy traffic.
■ When recharging or replacing the battery
●Vehicles with a smart key system: In some cases, it may not be possible to
unlock the doors using the smart key system when the battery is dis-
charged. Use the wireless remote control or the mechanical key to lock or
unlock the doors.
● Vehicles with a smart key system: The engine may not start on the first
attempt after the battery has recharged but will start normally after the sec-
ond attempt. This is not a malfunction.
● Vehicles with a smart key system: The engine switch mode is memorized by
the vehicle. When the battery is reconnected, the system will return to the
mode it was in before the battery was discharged. Before disconnecting the
battery, turn the engine switch off.
If you are unsure what mode the engine switch was in before the battery dis-
charged, be especially careful when reconnecting the battery.
● Vehicle with power back door: The power back door must be initialized.
(→P. 692)
● Vehicles with Stop & Start system: After the battery terminals have been dis-
connected then reconnected or the battery has been replaced, the Stop &
Start system may not automatically stop the engine for approximately 5 to
60 minutes.
■ Charging the battery
The electricity stored in the battery will discharge gradually even when the
vehicle is not in use, due to natural discharge and the draining effects of cer-
tain electrical appliances. If the vehicle is left for a long time, the battery may
discharge, and the engine may be unable to start. (The battery recharges
automatically during driving.)
■ When exchanging the battery (veh icles with Stop & Start system)
Use a genuine battery specifically designed for use with a Stop & Start sys-
tem or equivalent. If an unsupported battery is used, Stop & Start system
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.
Page 645 of 732

6458-2. Steps to take in an emergency
8
When trouble arises
HIGHLANDER_U (OM0E017U)
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the engine and turn the air conditioning system on to check
that the radiator cooling fans oper ate and to check for coolant leaks
from the radiator or hoses.
The fans operate when the air conditioning system is turned on immedi-
ately after a cold start. Confirm that the fans are operating by checking the
fan sound and air flow. If it is difficult to check these, turn the air condition-
ing system on and off repeatedly. (The fans may not operate in freezing
temperatures.)
If the fans are not operating:
Stop the engine immediately and contact your Toyota dealer.
If the fans are operating:
Have the vehicle in spected at the nearest Toyota dealer.
5
WARNING
■When inspecting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
● If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot.
● Keep hands and clothing (especially a tie, a scarf or a muffler) away from
the fans and belts.
● Do not loosen the radiator cap and the coolant reservoir cap while the
engine and radiator are hot.
6
7
Page 647 of 732
6478-2. Steps to take in an emergency
8
When trouble arises
HIGHLANDER_U (OM0E017U)
Stop the engine. Set the parking brake and shift the shift lever to P.
Remove the mud, snow or sand from around the front wheels.
Place wood, stones or some other material under the front wheels
to help provide traction.
Restart the engine.
AWD models: Activate all-wheel drive lock mode. ( →P. 330)
Shift the shift lever to D or R and release the parking brake. Then,
while exercising caution, depress the accelerator pedal.
■ When it is difficult to free the vehicle
If the vehicle becomes stuck
Carry out the following procedures if the tires spin or the vehicle
becomes stuck in mud, dirt or snow:
Press to turn off TRAC.
1
2
3
4
5
6
Page 684 of 732
6849-2. Customization
HIGHLANDER_U (OM0E017U)■
BSM (Blind Spot Monitor)* (
→P. 316)
*: If equipped
■
Power mode (driving mode)* ( →P. 229)
*: If equipped
■
Stop & Start system* ( → P. 297)
*: If equipped
FunctionDefault settingCustomized set-
ting
BSMOnOff—O—
123
FunctionDefault settingCustomized set-ting
Power modeOnOff—O—
123
FunctionDefault settingCustomized set-ting
Change the Stop & Start
system duration when the
A/C is on
StandardExtended—O—
123
Page 711 of 732

711What to do if... (Troubleshooting)
HIGHLANDER_U (OM0E017U)
●The auto power off function will be operated if the vehicle is left in ACCES-
SORY or IGNITION ON mode (the engine is not running) for a period of
time. (→P. 223)
●The seat belt reminder light is flashing
Are the driver and the passengers wearing the seat belts? ( →P. 582)
●The parking brake indicator is on
Is the parking brake released? (→P. 234)
Depending on the situation, other types of warning buzzer may also sound.
( →P. 581, 591)
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( →P. 82)
Vehicles without a smart key system:
To stop the alarm, turn the engine switch to the “ON” position or start the
engine.
Vehicles with a smart key system:
To stop the alarm, turn the engine switch to IGNITION ON mode or start the
engine.
The engine switch is tu rned off automatically
(vehicles with a smart key system)
A warning buzzer sounds during driving
An alarm is activated and the horn sounds
(vehicles with an alarm)
Page 718 of 732

718Alphabetical index
HIGHLANDER_U (OM0E017U)
DoorsAutomatic door locking
and unlocking system ......... 120
Back door.............................. 123
Door lock............................... 115
Door windows ....................... 172
Open door warning buzzer ... 118
Outside rear view mirrors...... 170
Rear door child-protector ...... 120
Side doors............................. 115
Warning message ................. 593
Downhill assist control system (DAC)......................... 337
Driver’s seat position
memory .................................. 158
Driving ...................................... 186 Break-in tips .......................... 187
Correct driving posture ........... 28
Procedures ........................... 186
Winter drive tips .................... 339
Dynamic radar cruise control .................................... 285 Constant speed control
mode .................................. 293
Vehicle-to-vehicle distance control mode....................... 291
Dynamic Torque Control
AWD system .......................... 332 Eco Driving Indicator .............. 102
EDR (Event data recorder)........ 10
Electric Power Steering
(EPS) ...................................... 332 Function ................................ 332
Warning light......................... 582
Electronic key .......................... 108 Battery-saving function ......... 143
If the electronic key does not
operate properly ................. 635
Replacing the battery............ 549
Emergency flashers ................ 572
Emergency, in case of If a warning buzzer
sounds................................ 581
If a warning light turns on ..... 581
If a warning message is displayed ............................ 591
If the battery is discharged ... 638
If the electronic key does not operate properly ........... 635
If the engine will not start ...... 633
If you have a flat tire ............. 608
If you think something is wrong ................................. 579
If your vehicle becomes stuck ................................... 647
If your vehicle has to be stopped in an emergency ... 573
If your vehicle needs to be
towed.................................. 575
If your vehicle overheats....... 644E