LEXUS RX 450HL (2019 year). Instruction - part 39

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WARNING

■

When replacing wheels

●

Do not use wheels that are a different size from those recommended in the Owner’s

Manual, as this may result in a loss of handling control.

●

Never use an inner tube in a leaking wheel which is designed for a tubeless tire. Doing

so may result in an accident, causing death or serious injury.

■

Use of defective wheels prohibited
Do not use cracked or deformed wheels.

Doing so could cause the tire to leak air during driving, possibly causing an accident.

NOTICE

■

Replacing tire pressure warning valves and transmitters

●

Because tire repair or replacement may affect the tire pressure warning valves and

transmitters, make sure to have tires serviced by your Lexus dealer or other qualified

service shop. In addition, make sure to purchase your tire pressure warning valves

and transmitters at your Lexus dealer.

●

Ensure that only genuine Lexus wheels are used on your vehicle.

Tire pressure warning valves and transmitters may not work properly with non-genu-

ine wheels. 

■

Selectable Color Trim (if equipped)

●

If rattles, noise, or other problems occur while

Selectable Color Trim are installed, contact

your Lexus dealer.

●

Do not remove or install Selectable Color

Trim yourself, as it may be damaged. Have the

Selectable Color Trim removed and installed

by your Lexus dealer.

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Turn the power switch off.
Open the glove box. Slide off the
damper.

Push in the glove box on the vehi-
cle's outer side to disconnect the
claws. Then pull out the glove box
and disconnect the lower claws.

Remove the cover.

Air conditioning filter

The air conditioning filter must be changed regularly to maintain air condi-
tioning efficiency.

Removal method

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Remove the filter cover.

Unlock the filter cover. 
Move the filter cover in the direc-
tion of the arrow, and then pull it
out of the claws.

Remove the filter case.

There may be foreign objects on top of

the air conditioning filter.

Remove the air conditioning filter
from the filter case and replace it
with a new one.

The “

UP” marks shown on the filter

and the filter case 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 “Owner’s Manual Supplement”

or “Scheduled Maintenance”.)

■

If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.

■

Air conditioning filter with deodorizing function
When fragrances are placed in your vehicle, the deodorizing effect may become signifi-

cantly weakened in a short period.
When an air conditioning odor comes out continuously, replace the air conditioning filter.

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NOTICE

■

When using the air conditioning system
Make sure that a filter is always installed.

Using the air conditioning system without a filter may cause damage to the system.

■

To prevent damage to the filter cover
When moving the filter cover in the direction of

arrow to release the fitting, pay attention not to

apply excessive force to the claws. Otherwise,

the claws may be damaged.

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Change the rest position of the windshield wipers to the service position using
the wiper lever and then lift a windshield wiper. (

P. 270)

While pressing and holding the
wiper blade lock release button,
remove the wiper blade.

When performing this operation, make

sure to hold the hook portion of the

wiper arm securely.

While disengaging the cap lock,
using a tool such as a flathead
screwdriver if necessary, remove the
wiper insert.

Hold the cap on the end of the wiper

insert when removing the wiper insert.

(The cap is integrated into the wiper

insert.)
If using a screwdriver, make sure to wrap

its tip with tape to protect the wiper

blade.

Install a new wiper insert.

Make sure to push the wiper insert firmly until the cap lock is engaged.
After installation, check that the cap lock is locked securely.

Install the wiper blade to the wiper arm.

Make sure to push the wiper blade until it is locked.
When performing this operation, make sure to hold the hook portion of the wiper arm

securely.
After installation, check that the wiper blade is locked securely.

Windshield wiper inserts

Replacing a windshield wiper insert

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Hook portion

12

Cap lock

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After replacing the wiper inserts, place the windshield wipers on the wind-
shield and lower them to the retracted position. (

P. 271)

Do not drive the vehicle with the windshield wipers lifted.

■

Replacing the rear wiper insert
Have the rear wiper insert replaced by your Lexus dealer.

■

Handling of the windshield wiper blades and inserts
Improper handling of the windshield wiper blades and inserts may cause them to be

damaged. If it is difficult to follow the wiper blade and insert replacement procedure pre-

cisely, contact your Lexus dealer.

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●

Flathead screwdriver

●

Lithium battery CR2032

Take out the mechanical key.

Remove the cover.

To prevent damage to the key, cover the

tip of the flathead screwdriver with a

tape.

Remove the depleted battery.

When removing the cover, the elec-

tronic key module may stick to the cover

and the battery may not be visible. In this

case, remove the electronic key module

in order to remove the battery.
Insert a new battery with the “+” termi-

nal facing up.

Electronic key battery

Replace the battery with a new one if it is depleted.

You will need the following items:

Replacing the battery

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Use a CR2032 lithium battery

●

Batteries can be purchased at your Lexus dealer, local electrical appliance shops or

camera stores.

●

Replace only with the same or equivalent type recommended by the manufacturer.

●

Dispose of used batteries according to the local laws.

■

If the electronic key battery is depleted
The following symptoms may occur:

●

The smart access system with push-button start 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.

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Turn the power switch off.
Open the fuse box cover.

■

Engine compartment
Push the tab in and lift the lid off.

■

Driver’s side instrument panel
Remove the lid.

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 necessary.

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Luggage compartment (type A fuse box)

■

Luggage compartment (type B fuse box)

Remove the fuse with the pullout
tool.
Only some fuses can be removed
using the pullout tool.



RX450h



RX450hL

Remove the 12-volt battery cover.
(

P. 606)

Remove the deck board and side aux-
iliary box cover and 12-volt battery
cover.

 

(

P. 606)



RX450h



RX450hL

Remove the terminal cover.

Remove the terminal cover.

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Check if the fuse is blown.

Normal fuse
Blown fuse

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.
Many types of fuse are used on this

vehicle. This illustration shows a com-

mon type of fuse used on this vehicle.

■

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. 637)

●

If the replaced fuse blows again, have the vehicle inspected by your Lexus 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
Lexus recommends that you use genuine Lexus products designed for this vehicle.

Because certain bulbs are connected to circuits designed to prevent overload, nongenu-

ine parts or parts not designed for this vehicle may be unusable.

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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 Lexus fuse or equivalent.

Never replace a fuse with a wire, even as a temporary fix.

●

Do not modify the fuses or fuse boxes.

■

Fuse box near the power control unit
Never check or replace the fuses as there are high voltage parts and wiring near the

fuse box.

Doing so may cause electric shock, resulting in death or serious injury.

NOTICE

■

Before replacing fuses
Have the cause of electrical overload determined and repaired by your Lexus dealer as

soon as possible.

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Adjustment bolt A
Adjustment bolt B

Make sure the vehicle has a full tank of gasoline and the area around the
headlight is not deformed.
Park the vehicle on level ground.
Sit in the driver’s seat.
Bounce the vehicle several times.

Headlight aim (vehicles with single-beam head-
lights)

Vertical movement adjusting bolts

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Before checking the headlight aim

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Using a Phillips-head screwdriver,
turn bolt A in either direction.

Remember the turning direction and the

number of turns.

Turn bolt B the same number of turns
and in the same direction as step  .

If the headlight cannot be adjusted using

this procedure, take the vehicle to your

Lexus dealer to adjust the headlight aim.

Adjusting the headlight aim

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Check the wattage of the light bulb to be replaced. (

P. 637)

P. 146

Light bulbs

You may replace the following bulbs by yourself. The difficulty level of replace-
ment varies depending on the bulb. If necessary bulb replacement seems diffi-
cult to perform, contact your Lexus dealer.
For more information about replacing other light bulbs, contact your Lexus
dealer.

Preparing for light bulb replacement

Canceling the power back door system

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Front

Bulb locations

Front turn signal light (vehicles with single-beam headlights)
Front side marker light (vehicles with single-beam headlights)

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Rear

Back-up light
Rear turn signal light (vehicles with single-beam headlights)

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