Page 5 of 608

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8 7
6
5
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HIGHLANDER_HV_U (OM48F12U)
9
6-1. Maintenance and careCleaning and protecting the vehicle exterior ................ 382
Cleaning and protecting the vehicle interior ................. 386
6-2. Maintenance Maintenance requirements ................... 389
General maintenance ........ 392
Emission inspection and maintenance (I/M)
programs ......................... 396
6-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 397
Hood.................................. 399
Positioning a floor jack ...... 401
Engine compartment ......... 402
12-volt battery ................... 410
Tires .................................. 415
Tire inflation pressure........ 425
Wheels .............................. 428
Air conditioning filter .......... 430
Electronic key battery ........ 432
Checking and replacing fuses ............................... 434
Light bulbs ......................... 438 7-1. Essential information
Emergency flashers ........... 454
If your vehicle has to be stopped in an
emergency....................... 455
7-2. Steps to take in an emergency
If your vehicle needs to be towed ...................... 456
If you think something is wrong ........................... 460
If a warning light turns on or a warning buzzer
sounds ............................. 461
If a warning message is displayed ......................... 470
If you have a flat tire .......... 490
If the hybrid system will not start ........................... 514
If the shift lever cannot be shifted from P ............... 516
If the electronic key does not operate properly ........ 517
If the 12-volt battery is discharged ....................... 520
If your vehicle overheats.... 525
If the vehicle becomes stuck ................................ 529
6Maintenance and care7When trouble arises
Page 139 of 608

1393-2. Opening, closing and locking the doors
3
Operation of each component
HIGHLANDER_HV_U (OM48F12U)■
When reconnecting the 12- volt battery or changing a fuse while the back
door is open
To enable the power back door to operate properly, initialize the system by
completely closing the back door manually. If the 12-volt battery is recon-
nected or a fuse is changed while the back door is closed, initializing the sys-
tem is not necessary.
■ Customization
Settings (e.g. power back door opening angle) can be changed.
(Customizable features: P. 560)
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■Before driving
●Make sure that the back door is fully closed. If the back door is not fully
closed, it may open unexpectedly while driving and hit near-by objects or
luggage in the luggage compartment may be thrown out, causing an acci-
dent.
● Do not allow children to play in the luggage compartment.
If a child is accidentally locked in the luggage compartment, they could
have heat exhaustion or other injuries.
● Do not allow a child to open or close the back door.
Doing so may cause the back door to move unexpectedly, or cause the
child’s hands, head, or neck to be caught by the closing back door.
■ Important points while driving
Never let anyone sit in the luggage compartment. In the event of sudden
braking, sudden swerving or a collision, they are susceptible to death or
serious injury.
Page 358 of 608
3585-4. Using the other interior features
HIGHLANDER_HV_U (OM48F12U)
NOTICE
■To avoid damaging the power outlets
Close the power outlet lids when the power outlets are not in use.
Foreign objects or liquids that enter the power outlets may cause a short cir-
cuit.
■ To prevent blown fuses
12 V
Do not use an accessory that uses more than 12 V 10 A.
120 VAC
Do not use a 120 VAC appliance that requires more than 100 W.
If a 120 VAC appliance that consumes more than 100 W is used, the protec-
tion circuit will cut the power supply.
■ To prevent 12-volt battery discharge
Do not use the power outlet longer than necessary when the hybrid system
is off.
■ Appliances that may not operate properly (120 VAC)
The following 120 VAC appliances may not operate properly even if their
power consumption is under 100 W:
●Appliances with high initial peak wattage
● Measuring devices that process precise data
● Other appliances that require an extremely stable power supply
Page 381 of 608
381
6Maintenance and care
HIGHLANDER_HV_U (OM48F12U)6-1. Maintenance and care
Cleaning and protecting the vehicle exterior .......... 382
Cleaning and protecting the vehicle interior ........... 386
6-2. Maintenance Maintenance requirements ................... 389
General maintenance........ 392
Emission inspection and maintenance (I/M)
programs ......................... 396
6-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 397
Hood ................................. 399
Positioning a floor jack ...... 401
Engine compartment ......... 402
12-volt battery ................... 410
Tires .................................. 415
Tire inflation pressure ....... 425
Wheels .............................. 428
Air conditioning filter.......... 430
Electronic key battery........ 432
Checking and replacing fuses ............................... 434
Light bulbs......................... 438
Page 397 of 608

397
HIGHLANDER_HV_U (OM48F12U)
6
Maintenance and care
6-3. Do-it-yourself maintenance
Do-it-yourself ser vice precautions
If you perform maintenance by yourself, be sure to follow the
correct procedure as given in these sections.
ItemsParts and tools
12-volt battery
condition
(P. 410)•Grease
• Conventional wrench (for terminal clamp bolts)
Brake fluid level
(P. 408)• FMVSS No.116 DOT 3 or SAE J1703 brake fluid
• Rag or paper towel
• Funnel (used only for adding brake fluid)
Engine/power
control unit cool-
ant level
(P. 406)
• “Toyota Super Long Life Coolant” or a similar high
quality ethylene glycol based non-silicate, non-
amine, non-nitrite and non-borate coolant with long-
life hybrid organic acid technology
For the U.S.A.:
“Toyota Super Long Life Coolant” is pre-mixed with
50% coolant and 50% deionized water.
For Canada:
“Toyota Super Long Life Coolant” is pre-mixed with
55% coolant and 45% deionized water.
• Funnel (used only for adding coolant)
Engine oil level
( P. 403)• “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses ( P. 434)• Fuse with same amperage rating as original
Light bulbs
(P. 438)
• Bulb with same number and wattage rating as origi-
nal
• Phillips-head screwdriver
• Flathead screwdriver• Wrench
Radiator and con-
denser ( P. 407)
Tire inflation
pressure
( P. 425)• Tire pressure gauge
• Compressed air source
Washer fluid
(P. 409)• Water or washer fluid containing antifreeze (for win-
ter use)
• Funnel (used only for adding water or washer fluid)
Page 402 of 608
4026-3. Do-it-yourself maintenance
HIGHLANDER_HV_U (OM48F12U)
Engine compartment
Washer fluid tank (P. 409)
Brake fluid reservoir ( P. 408)
Engine oil filler cap ( P. 404)
Engine oil level dipstick ( P. 403)
Engine coolant reservoir ( P. 406) Power control unit coolant
reservoir (
P. 406)
Fuse boxes ( P. 434)
Electric cooling fans
Condenser ( P. 407)
Power control unit coolant
radiator ( P. 407)
Radiator ( P. 407)1
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8
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10
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Page 434 of 608
4346-3. Do-it-yourself maintenance
HIGHLANDER_HV_U (OM48F12U)
Turn the power switch off.
Open the fuse box cover.
Engine compartment (type A fuse box)
Push the tab in and lift the lid off.
Engine compartment (type B fuse box)
Push the tab in and lift the lid off.
Engine compartment (type C fuse box)
Push the tab in and lift the lid off.
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may
have blown. If this happens, check and replace the fuses as nec-
essary.
1
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Page 435 of 608
4356-3. Do-it-yourself maintenance
HIGHLANDER_HV_U (OM48F12U)
6
Maintenance and care
Under the driver’s side instrument panel
Remove the lid.
Luggage compartment
Remove the 12-volt battery cover
( P. 410) and then remove the
terminal cover.
Remove the fuse with the pull-
out tool.
Only type A fuses can be removed
using the pullout tool.
3