Page 482 of 604
4827-2. Steps to take in an emergency
HIGHLANDER_HV_U (OM48D74U)
OnceContin-
uous
An attempt was made to lock
either front door by opening a
door and putting the inside lock
button into the lock position,
then closing the door with the
electronic key still inside the
vehicle.
Retrieve the electronic key
from the vehicle and lock
the doors again.
Once
The electronic key has a low
battery.
Replace the electronic key
battery. ( P. 428)
Once
The steering lock could not be
released within 3 seconds of
the power switch being
pressed.
Press the power switch
while depressing the brake
pedal and moving the
steering wheel left and
right.
Once
Indicates a malfunction in the
smart key system
Have the vehicle inspected
by your Toyota dealer.
Interior
buzzerExterior buzzerWarning messageDetails/Actions
(Flashes)
(Flashes)
(Flashes)
Page 483 of 604

4837-2. Steps to take in an emergency
7
When trouble arises
HIGHLANDER_HV_U (OM48D74U)
Once
• When the doors wereunlocked with the mechanical
key and then the power
switch was pressed, the elec-
tronic key could not be
detected in the vehicle.
• The electronic key could not be detected in the vehicle
even after the power switch
was pressed two consecu-
tive times.
Touch the electronic key to
the power switch while
depressing the brake
pedal.
Once
Monochrome display
Color display
During a hybrid system starting
procedure in the event that the
electronic key was not function-
ing properly ( P. 513), the
power switch was touched with
the electronic key.
Press the power switch
within 10 seconds of the
buzzer sounding.
Monochrome display
Color display
Indicates that:
• With the power switch off, the
doors were unlocked and
then the driver’s door was
opened and closed;
• The power switch was turned to ACCESSORY mode with-
out starting the hybrid sys-
tem; or
• The shift lever was shifted to P from another position with
the power switch in ON
mode.
Press the power switch
while depressing the brake
pedal.
Interior
buzzerExterior buzzerWarning messageDetails/Actions
(Flashes)
Page 490 of 604
4907-2. Steps to take in an emergency
HIGHLANDER_HV_U (OM48D74U)
Pull the strap upwards to open
the center deck board.
To secure the center deck
board, remove the hook on the
backside of the center deck
board and attach the hook to
the head restraint on the third
seats as shown.
Remove the mat.
Remove the cover.
If it is difficult to remove the
cover, you can use your key.
Taking out the spare tire
1
2
3
4
Page 510 of 604

5107-2. Steps to take in an emergency
HIGHLANDER_HV_U (OM48D74U)
One of the following may be the cause of the problem:
●The electronic key may not be functioning properly. ( P. 514)
● There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
● There may be a malfunction in the immobilizer system. (P. 9 1 )
● There may be a malfunction in the steering lock system.
● The hybrid system may be malfunctioning due to an electrical prob-
lem such as electronic key battery depletion or a blown fuse. How-
ever, depending on the type of malfunction, an interim measure is
available to start the hybrid system. ( P. 511)
One of the following may be the cause of the problem:
● The 12-volt battery may be discharged. ( P. 516)
● The 12-volt battery terminal conn ections may be loose or corroded.
If the hybrid system will not star t
Reasons for the hybrid system not starting vary depending on
the situation. Check the follo wing and perform the appropriate
procedure:
The hybrid system will not start even though the correct starting
procedure is being followed. ( P. 229)
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.
Page 513 of 604

5137-2. Steps to take in an emergency
7
When trouble arises
HIGHLANDER_HV_U (OM48D74U)
Use the mechanical key (P.
125) in order to perform the fol-
lowing operations:
Locks all the doors
Closes the windows and moon
roof
*1 (turn and hold)*2
( P. 181, 184)
Unlocks the door
Turning the key rearward unlocks the driver’s door. Turning the key once
again within 5 seconds unlocks the other doors.
Opens the windows and moon roof*1 (turn and hold)*2
( P. 181, 184)
*1: If equipped
*2: This setting must be customized at your Toyota dealer.
If the electronic key does not operate
properly
If communication between the electronic key and vehicle is
interrupted ( P. 151) or the electronic key cannot be used
because the battery is depleted, the smart key system, push but-
ton start and wireless remote control cannot be used. In such
cases, the doors can be opened and the hybrid system can be
started by following the procedure below.
Locking and unlocking the doors and key linked functions
1
2
3
4
Page 514 of 604
5147-2. Steps to take in an emergency
HIGHLANDER_HV_U (OM48D74U)
Ensure that the shift lever is in P and depress the brake pedal.
Touch the Toyota emblem side
of the electronic key to the
power switch.
When the electronic key is
detected, a buzzer sounds and
the power switch will turn to ON
mode.
When the smart key system is
deactivated in customization set-
ting, the power switch will turn to
ACCESSORY mode.
Firmly depress the brake pedal.
Vehicles with monochrome display:
Check that
is shown on the multi-information display.
Vehicles with color display:
Check that
and a message are shown on the multi-information
display.
Press the power switch.
In the event that the engine still c annot be started, contact your Toyota
dealer.
Starting the hybrid system
1
2
3
4
Page 515 of 604
5157-2. Steps to take in an emergency
7
When trouble arises
HIGHLANDER_HV_U (OM48D74U)
■Stopping the hybrid system
Shift the shift lever to P 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 recommended that the
electronic key battery be replaced immediately when the battery is depleted.
(P. 428)
■ Changing power switch modes
Release the brake pedal and press the power switch in step above.
The hybrid system does not start and modes will be changed each time the
switch is pressed. ( P. 230)
■ 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. 556)
● Check if battery-saving mode is set. If it is set, cancel the function.
(P. 150)
3
Page 518 of 604

5187-2. Steps to take in an emergency
HIGHLANDER_HV_U (OM48D74U)
Once the hybrid system has started, remove the jumper cables in
the exact reverse order from which they were connected.
Close the exclusive jump starting terminal cover, and reinstall the
fuse box cover to its original position.
When installing, first hook the fuse box cover onto the two rear tabs.
Once the hybrid system starts, have the vehicle inspected at your
Toyota dealer as soon as possible.
■ Starting the hybrid system when th e 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
■ To prevent 12-volt battery discharge
●Turn off the headlights and the audio system while the hybrid system is off.
● 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 repl acing the 12-volt battery
● In some cases, it may not be possible to unlock the doors using the smart
key system when the 12-volt battery is discharged. Use the wireless remote
control or the mechanical key to lock or unlock the doors.
● The hybrid system may not start on the first attempt after the 12-volt battery
has recharged but will start normally after the second attempt. This is not a
malfunction.
● The power switch mode is memorized by the vehicle. When the 12-volt bat-
tery is reconnected, the system will return to the mode it was in before the
12-volt battery was discharged. Before disconnecting the 12-volt battery,
turn the power switch off.
If you are unsure what mode the power switch was in before the 12-volt bat-
tery discharged, be especially careful when reconnecting the 12-volt battery.
● The power back door must be initialized. ( P. 567)
■ Charging the 12-volt battery
The electricity stored in the 12-volt battery will discharge gradually even when
the vehicle is not in use, due to natural discharge and the draining effects of
certain electrical appliances. If the vehicle is left for a long time, the 12-volt
battery may discharge, and the hybrid system may be unable to start. (The
12-volt battery recharges automatically while the hybrid system is operating.)
8
9