Toyota Highlander (2018 year). Manual - part 135

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7-3. Do-it-yourself maintenance

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.

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

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.

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7-3. Do-it-yourself maintenance

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.

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2



Type A



Type B



Type C

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After a fuse is replaced

●

If the lights do not turn on even after the fuse has been replaced, a bulb may
need replacement. (

→P. 556)

●

If the replaced fuse blows again, have the vehicle inspected by your Toyota
dealer.

■

If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness from damage.

■

When replacing light bulbs
Toyota recommends that you use genuine Toyota products designed for this
vehicle. Because certain bulbs are connected to circuits designed to prevent
overload, non-genuine parts or parts not designed for this vehicle may be
unusable.

WARNING

■

To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage to the vehicle, and possibly a fire or
injury.

●

Never use a fuse of a higher amperage rating than that indicated, or use
any other object in place of a fuse.

●

Always use a genuine Toyota fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.

●

Do not modify the fuses or fuse boxes.

NOTICE

■

Before replacing fuses
Have the cause of electrical overload determined and repaired by your
Toyota dealer as soon as possible.