Page 621 of 716

6218-2. Steps to take in an emergency
8
When trouble arises
HIGHLANDER_HV_U (OM48F12U)
One of the following may be the cause of the problem:
●The electronic key may not be functioning properly. ( →P. 624)
● 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. 622)
One of the following may be the cause of the problem:
● The 12-volt battery may be discharged. ( →P. 626)
● The 12-volt battery terminal connections may be loose or corroded.
(→ P. 517)
If the hybrid system will not start
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. 225)
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.
Page 622 of 716

6228-2. Steps to take in an emergency
HIGHLANDER_HV_U (OM48F12U)
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. ( →P. 626)
● One or both of the 12-volt batter y terminals may be disconnected.
( → P. 517)
Contact your Toyota dealer if the problem cannot be repaired, or if repair
procedures are unknown.
When the hybrid system does not start, the following steps can be
used as an interim measure to star t the hybrid system if the power
switch is functioning normally.
Do not use this starting procedure except in cases of emergency.
Set the parking brake.
Shift the shift lever to P.
Turn the power switch to ACCESSORY mode.
Press and hold the power switch for about 15 seconds while
depressing the brake pedal firmly.
Even if the hybrid system can be started using the above steps, the
system may be malfunctioning. Have the vehicle inspected by your
Toyota dealer.
The interior lights and headlight s do not turn on, or the horn
does not sound.
Emergency start function
1
2
3
4
Page 628 of 716

6288-2. Steps to take in an emergency
HIGHLANDER_HV_U (OM48F12U)
Open and close any of the doors of your vehicle with the power
switch off.
Maintain the engine speed of t he second vehicle and start the
hybrid system of your vehicle by turning the power switch to ON
mode.
Make sure the “READY” indicato r comes on. If the indicator does
not come on, contact your Toyota dealer.
Once the hybrid system has start ed, 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, ha ve the vehicle inspected at your
Toyota dealer as soon as possible.
■ Starting the hybrid system when the 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.
● Vehicle with power back door: The power back door must be initialized.
(→P. 677)
■ 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.)
7
8
9
10
11
Page 644 of 716
6449-1. Specifications
HIGHLANDER_HV_U (OM48F12U)
Cooling system
Capacity (reference)
Gasoline engine
Power control unit14.3 qt. (13.5 L, 11.9 Imp. qt.)
2.0 qt. (1.9 L, 1.7 Imp. qt.)
Coolant typeUse either of the following.
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based
non-silicate, non-amine, non-nitrite, and
non-borate coolant with long-life hybrid
organic acid technology
Do not use plain water alone.
Ignition system
Spark plug
MakeDENSO FK20HBR8
Gap0.031 in. (0.8 mm)
NOTICE
■ Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
Electrical system
12-volt battery
Open voltage at 68 °F
(20° C): 12.0 V or More
If the voltage is lower than the standard value,
charge the battery.
(Voltage is checked 20 minutes after the hybrid
system and all lights are turned off.)
Charging rates5 A max.
Page 649 of 716
6499-1. Specifications
9
Vehicle specifications
HIGHLANDER_HV_U (OM48F12U)
*1: Light bulbs not listed in this table are LED bulbs.
*2: If equipped
Light bulbs*1
Light bulbsBulb No.WTy p e
ExteriorHeadlights
High beam
Low beam 9005
⎯ 60
55 A
B
Parking and front turn signal
lights 7444NA 28/8 C
Front side maker lights ⎯5D
Front fog lights
*2⎯ 19 E
Rear turn signal lights ⎯21 C
Back-up lights ⎯16 D
License plate lights ⎯5D
Interior Vanity lights
⎯1.26 D
Front interior/front personal
lights ⎯
5D
Rear interior/rear personal
lights ⎯
8D
Front door courtesy lights 168 5 D
Luggage compartment light Type A
Type B ⎯
5D
F
A: HB3 halogen bulbs
C: Wedge base bulbs (amber)
E: H16 halogen bulbs B: H11 halogen bulbs
D: Wedge base bulbs (clear)
F: Double end bulbs
Page 673 of 716
6739-2. Customization
9
Vehicle specifications
HIGHLANDER_HV_U (OM48F12U)■
Turn signal lever (
→P. 239)
*1: After flashing the turn signal lights when turning left or right while this func-
tion is off and the turn signal lever is moved to the first position in the direc-
tion of the flashing light, the turn signal lights can be selected to be flashing
or off.
*2: The turn signal lights will be off if the turn signal lever is moved to the firstposition in the direction of flashing light.
■
Automatic light control system ( →P. 241)
FunctionDefault settingCustomized set-
ting
The number of times the
turn signal lights flash
automatically when the
turn signal lever is
moved to the first posi-
tion during a lane
change
*1
3
Off*2
——O
4 to 7
123
FunctionDefault settingCustomized set-
ting
Light sensor sensitivityStandard-2 to 2O—O
Time elapsed before
headlights automatically
turn off after doors are
closed
30 seconds
Off
O—O60 seconds
90 seconds
123
Page 674 of 716
6749-2. Customization
HIGHLANDER_HV_U (OM48F12U)■
Lights (→
P. 241)
*: U.S.A. only
■
Intuitive parking assist*1 (Refer to “NAVIGATION AND MULTI-
MEDIA SYSTEM OWNER’S MANUAL”)
*1: If equipped
*2: When intuitive parking assist is operating.
■
Vehicle Proximity Notification System ( →P. 8 2 )
■Automatic air condi tioning system (→P. 434)
FunctionDefault settingCustomized set-
ting
Daytime running light
system
*OnOffO—O
123
FunctionDefault settingCustomized set-ting
Detection distance of the
rear center sensorFarNearO—O
Buzzer volumeLevel 3Level 1 to 5O—O
Display setting*2All sensors dis-playedDisplay offO—O
123
FunctionDefault settingCustomized set- ting
The volume of Vehicle
Proximity Notification
System sound
Level 1
Level 2
——OLevel 3
123
FunctionDefault settingCustomized set-ting
A/C auto switch opera-
tionOnOffO—O
123
Page 675 of 716
6759-2. Customization
9
Vehicle specifications
HIGHLANDER_HV_U (OM48F12U)■
Illumination (
→P. 447)
*:If equipped
■
Seat belt reminder ( →P. 568)
FunctionDefault settingCustomized set-
ting
Time elapsed before the
interior lights turn off15 seconds
Off
O—O7.5 seconds
30 seconds
Operation after the
power switch is turned
off
OnOff——O
Operation when the
doors are unlockedOnOff——O
Operation when you
approach the vehicle
with the electronic key
on your person
OnOff——O
Ambient lights*OnOff——O
Time elapsed before the
outer foot lights turn off
*15 seconds
Off
O—O7.5 seconds
30 seconds
Operation of the outer
foot lights when you
approach the vehicle
with the electronic key
on your person
*
OnOff——O
Operation of the outer
foot lights when the
doors are unlocked
*
OnOff——O
123
FunctionDefault settingCustomized set-
ting
Vehicle speed linked
seat belt reminder
buzzer
OnOff——O
123