Page 547 of 732
5477-3. Do-it-yourself maintenance
7
Maintenance and care
HIGHLANDER_U (OM0E017U)
Vehicles without a smart key system:
Turn the engine switch to the “LOCK” position.
Vehicles with a smart key system:
Turn the engine switch off.
Open the glove box. Slide off
the damper.
Push in the glove box on the
vehicle’s outer side to discon-
nect the claws. Then pull out
the glove box and disconnect
the lower claws.
Pull down the cover.
Air conditioning filter
The air conditioning filter must be changed regularly to maintain
air conditioning efficiency.
Removal method
1
2
3
4
Page 548 of 732
5487-3. Do-it-yourself maintenance
HIGHLANDER_U (OM0E017U)
Remove the filter cover.
Remove the air conditioning fil-
ter and replace it with a new
one.
The “\bUP” marks shown on the fil-
ter should be pointing up.
■ Checking interval
Inspect and replace the air conditioning filter according to the maintenance
schedule. In dusty areas or areas with heavy traffic flow, early replacement
may be required. (For scheduled maintenance information, please refer to the
“Schedule maintenance guide” or “Owner’s Manual Supplement”.)
■ If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
5
6
NOTICE
■When using the ai r conditioning system
Make sure that a filter is always installed.
Using the air conditioning system without a filter may cause damage to the
system.
Page 549 of 732
5497-3. Do-it-yourself maintenance
7
Maintenance and care
HIGHLANDER_U (OM0E017U)
●Flathead screwdriver
● Small flathead screwdriver
● Lithium battery CR2016 (vehicles without a smart key system), or
CR2032 (vehicles with a smart key system)
Vehicles without a smart key system
Remove the cover.
To prevent damage to the key,
cover the tip of the flathead screw-
driver with a rag.
To prevent the buttons from being
disassembled, face the button sur-
face downward.
Remove the module.
Wireless remote cont rol/electronic key
battery
Replace the battery with a new one if it is depleted.
You will need the following items:
Replacing the battery
1
2
Page 550 of 732
5507-3. Do-it-yourself maintenance
HIGHLANDER_U (OM0E017U)
Open the case cover using a
coin protected with tape etc.
and remove the depleted bat-
tery using a small flathead
screwdriver.
Insert a new battery with the “+”
terminal facing up.
Vehicles with a smart key system
Take out the mechanical key.
Remove the cover.
To prevent damage to the key,
cover the tip of the flathead screw-
driver with a rag.
Remove the depleted battery.
Insert a new battery with the “+”
terminal facing up.
3
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2
3
Page 551 of 732

5517-3. Do-it-yourself maintenance
7
Maintenance and care
HIGHLANDER_U (OM0E017U)
■Use a CR2016 (vehicles without a sm art key system) or CR2032 (vehicles
with a smart key system) lithium battery
● Batteries can be purchased at your Toyota dealer, local electrical appliance
shops or camera stores.
● Replace only with the same or equivalent type recommended by the manu-
facturer.
● Dispose of used batteries according to local laws.
■ If the key battery is depleted
The following symptoms may occur:
●The smart key system (if equipped) and wireless remote control will not
function properly.
● The operational range will be reduced.
WARNING
■Removed battery and other parts
These parts are small and if swallowed by a child, they can cause choking.
Keep away from children. Failure to do so could result in death or serious
injury.
NOTICE
■For normal operation after replacing the battery
Observe the following precautions to prevent accidents:
● Always work with dry hands.
Moisture may cause the battery to rust.
● Do not touch or move any other component inside the remote control.
● Do not bend either of the battery terminals.
Page 552 of 732
5527-3. Do-it-yourself maintenance
HIGHLANDER_U (OM0E017U)
Vehicles without a smart key system:
Turn the engine switch to the “LOCK” position.
Vehicles with a smart key system:
Turn the engine 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.
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
2
Page 553 of 732
5537-3. Do-it-yourself maintenance
7
Maintenance and care
HIGHLANDER_U (OM0E017U)
Under the driver’s side instrument panel
Remove the lid.
Remove the fuse with the pull-
out tool.
Only type A fuses can be removed
using the pullout tool.
3
Page 554 of 732
5547-3. Do-it-yourself maintenance
HIGHLANDER_U (OM0E017U)
Check if the fuse is blown.Normal fuse
Blown fuse
Type A and B:
Replace the blown fuse with a new fuse of an appropriate amperage rat-
ing. The amperage rating can be found on the fuse box lid.
Type C:
Contact your Toyota dealer.
4
1
2
Ty p e AType B
Ty p e C