maintenance Lexus IS200t 2017 s Workshop Manual

5267-3. Do-it-yourself maintenance
IS200t_EE(OM53D77E)
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 filt er 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 “Lexus Service Booklet” or
“Lexus Warranty Booklet”.)
■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 cont inuously, replace the air conditioning filter.
5
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.

5277-3. Do-it-yourself maintenance
7
Maintenance and care
IS200t_EE(OM53D77E)
●Flathead screwdriver
●Small flathead screwdriver
●Lithium battery CR2032
Take out the mechanical key.
Remove the cover.
To prevent damage to the key, wrap the
tip of the screwdriver with tape.
Remove the battery cover.
To prevent damage to the key, wrap the
tip of the screwdriver with tape.
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
3

5287-3. Do-it-yourself maintenance
IS200t_EE(OM53D77E)
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 retailer or Lexus authorized
repairer, or any reliable repairer, 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 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.
■Certification for the key battery
●Replace only with the same or equivalent type recommended by the manufacturer.
●Dispose of used batteries according to the local laws.
4

5297-3. Do-it-yourself maintenance
7
Maintenance and care
IS200t_EE(OM53D77E)
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.
■Lithium battery precautions
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.

5307-3. Do-it-yourself maintenance
IS200t_EE(OM53D77E)
Turn the engine switch off.
Open the fuse box cover.
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.
1
2
Engine compartment: type A fuse
box (left-hand drive vehicles) Engine compartment: type A fuse
box (right-hand drive vehicles)
Push the tab in and lift the lid off. Push the tab in and lift the lid off.
Engine compartment: type B fuse
box
Push the tab in and lift the lid off.

5317-3. Do-it-yourself maintenance
7
Maintenance and care
IS200t_EE(OM53D77E)
Remove the fuse with the pullout
tool.
Only type A fuses can be removed
using the pullout tool.
Left side instrument panel (left-hand
drive vehicles)Left side instrument panel (right-
hand drive vehicles)
Remove the lid. Remove the lid
3

5327-3. Do-it-yourself maintenance
IS200t_EE(OM53D77E)
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 rating. The
amperage rating can be found on the fuse box lid.
Type C and D:
Contact any authorized Lexus retailer or Le xus authorized repairer, or any reliable
repairer.
Type AType B
Type CType D
4
1
2

5337-3. Do-it-yourself maintenance
7
Maintenance and care
IS200t_EE(OM53D77E)
■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. 534)
●If the replaced fuse blows again, have the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repa irer, or any reliable repairer.
■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 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.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by any authorized
Lexus retailer or Lexus authorized repairer, or any reliable repairer as soon as possible.

5347-3. Do-it-yourself maintenance
IS200t_EE(OM53D77E)
Check the wattage of the light bulb to be replaced. (P. 639)
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 retailer or Lexus authorized repairer, or any reliable repairer.
Preparing for light bulb replacement
Bulb locations
Front turn signal light (bulb type)
Outer foot light1
2

5357-3. Do-it-yourself maintenance
7
Maintenance and care
IS200t_EE(OM53D77E)
■Front turn signal lights (bulb type)For the left side only: Pinch the
clip to remove the washer fluid
filler opening.
Turn the bulb base counterclock-
wise.
Remove the light bulb.
Install a new light bulb then install
the bulb base to the light unit by
inserting it and turning the bulb
base clockwise.
After installing the light bulb, turn on
the front turn signal light to visually
check that there is no light leaking
from the bulb base.
After replacing the left side bulb, install the washer fluid filler opening to its
original position.
Replacing light bulbs
1
2
3
4
5