Page 620 of 712
6208-2. Steps to take in an emergency
HIGHLANDER_U (OM48E98U)
■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. 532)
■ 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. 229)
■ 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. 662)
● Check if battery-saving mode is set. If it is set, cancel the function.
(P. 149)
3
Page 627 of 712

6278-2. Steps to take in an emergency
8
When trouble arises
HIGHLANDER_U (OM48E98U)
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 629 of 712
6298-2. Steps to take in an emergency
8
When trouble arises
HIGHLANDER_U (OM48E98U)
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. 297)
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 691 of 712

691What to do if... (Troubleshooting)
HIGHLANDER_U (OM48E98U)
●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. 230)
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? ( P. 565)
●The parking brake indicator is on
Is the parking brake released? (P. 240)
Depending on the situation, other types of warning buzzer may also sound.
( P. 563, 572)
●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 698 of 712

698Alphabetical index
HIGHLANDER_U (OM48E98U)
DoorsAutomatic door locking
and unlocking system ......... 126
Back door.............................. 129
Door lock............................... 121
Door windows ....................... 178
Open door warning buzzer ... 124
Open door warning light ............................. 565, 574
Outside rear view mirrors...... 176
Rear door child-protector ...... 126
Side doors............................. 121
Downhill assist control system (DAC)......................... 304
Driver’s seat position memory .................................. 164
Driving ...................................... 192
Break-in tips .......................... 193
Correct driving posture ........... 28
Procedures ........................... 192
Winter drive tips .................... 323
Dynamic radar cruise control .................................... 266
Dynamic Torque Control AWD system .......................... 299 Eco Driving Indicator .............. 107
EDR (Event data recorder)........ 10
Electric Power Steering
(EPS) ...................................... 299 Function ................................ 299
Warning light......................... 564
Electronic key .......................... 114 Battery-saving function ......... 149
If the electronic key does not
operate properly ................. 618
Replacing the battery............ 532
Emergency flashers ................ 554
Emergency, in case of If a warning buzzer
sounds................................ 563
If a warning light turns on ..... 563
If a warning message is displayed ............................ 572
If the battery is discharged ... 621
If the electronic key does not operate properly ........... 618
If the engine will not start ...... 615
If the shift lever cannot be shifted from P ..................... 617
If you have a flat tire ............. 590
If you think something is wrong ................................. 561
If your vehicle becomes stuck ................................... 629
If your vehicle has to be
stopped in an emergency ... 555
If your vehicle needs to be towed.................................. 557
If your vehicle overheats....... 626E