Page 637 of 776
6377-3. Do-it-yourself maintenance
7
Maintenance and care
RX350/RX200t_EE_OM48F32E
After replacing the wiper inserts, place the windshield wipers on the wind-
shield and lower them to the retracted position. ( P. 284)
Do not drive the vehicle with the windshield wipers lifted.
■Replacing the rear wiper insert
Have the rear wiper insert replaced by an y authorized Lexus dealer or repairer, or another duly qualified and equipped professional.
■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 wi per blade and insert replacement procedure pre- cisely, contact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
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Page 638 of 776
6387-3. Do-it-yourself maintenance
RX350/RX200t_EE_OM48F32E
●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 atape.
Remove the battery cover.
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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2
3
Page 639 of 776

6397-3. Do-it-yourself maintenance
7
Maintenance and care
RX350/RX200t_EE_OM48F32E
Remove the depleted battery.
Insert a new battery with the “+” termi-
nal facing up.
■Use a CR2032 lithium battery
●Batteries can be purchased at any authorized Lexus dealer or repairer, or another duly qualified and equipped professional, 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.
■When the card key battery needs to be replaced (if equipped)
The battery for the card key is available only at your Lexus dealer. Your Lexus dealer can replace the battery for you.
■If the electronic key battery is depleted
The following symptoms may occur:
●The smart entry & start system and wireless remote control will not function properly.
●The operational range will be reduced.
4
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.
■Certification for the smart entry & start system
CAUTION RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS
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 640 of 776
6407-3. Do-it-yourself maintenance
RX350/RX200t_EE_OM48F32E
Turn the engine switch off.
Open the fuse box cover.
Engine compartment
Push the tab in and lift the lid off.
Left side instrument panel (left-hand drive vehicles)
Remove the lid.
Left side instrument panel (right-hand drive vehicles)
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 repl ace the fuses as necessary.
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2
Page 641 of 776
6417-3. Do-it-yourself maintenance
7
Maintenance and care
RX350/RX200t_EE_OM48F32E
Remove the fuse with the pullout
tool.
Only some fuses can be removed
using the pullout tool.
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.
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4
1
2
Page 642 of 776

6427-3. Do-it-yourself maintenance
RX350/RX200t_EE_OM48F32E
■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. 643)
●If the replaced fuse blows again, have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
■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 us e genuine Lexus products designed for this vehicle. Because certain bulbs are connected to circuits designed to prevent overload, non-gen-
uine 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 otherobject 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.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional as soon as possible.
Page 643 of 776
6437-3. Do-it-yourself maintenance
7
Maintenance and care
RX350/RX200t_EE_OM48F32E
Check the wattage of the light bulb to be replaced. (P. 738)
P. 155
Light bulbs
You may replace the following bulbs by yourself. The difficulty level of replace-
ment varies depending on the bulb. As there is a danger that components may
be damaged, we recommend that replacement is carried out by any autho-
rized Lexus dealer or repairer, or an other duly qualified and equipped profes-
sional.
Preparing for light bulb replacement
Canceling the power back door system
Page 644 of 776
6447-3. Do-it-yourself maintenance
RX350/RX200t_EE_OM48F32E
■Front
Bulb locations
Front turn signal light (vehicles with single-beam headlights)1