maintenance Lexus IS250 2014 Map database information and updates / LEXUS 2014 IS250,IS350 (OM53758U) Workshop Manual

4267-3. Do-it-yourself maintenance
IS350/250_U (OM53758U)
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 informat ion, 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.
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.

4277-3. Do-it-yourself maintenance
7
Maintenance and care
IS350/250_U (OM53758U)
●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 depleted 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
1
2
3

4287-3. Do-it-yourself maintenance
IS350/250_U (OM53758U)
■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 local laws.
■When the card key battery needs to be replaced (if equipped)
The battery for the card key is available only at Lexus dealers. Your Lexus dealer can
replace the battery for you.
■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.
CAUTION
■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.

4297-3. Do-it-yourself maintenance
7
Maintenance and care
IS350/250_U (OM53758U)
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.
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.
1
2

4307-3. Do-it-yourself maintenance
IS350/250_U (OM53758U)
Remove the fuse with the pullout
tool.
Only type A fuses can be removed
using the pullout tool.
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.
Ty p e C a n d D :
Contact your Lexus dealer.
3
4
1
2
Ty p e ATy p e B
Ty p e CTy p e D

4317-3. Do-it-yourself maintenance
7
Maintenance and care
IS350/250_U (OM53758U)
■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. 4 3 2 )
●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 Le xus 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.
CAUTION
■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 rati ng 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 determ ined and repaired by your Lexus dealer as
soon as possible.

4327-3. Do-it-yourself maintenance
IS350/250_U (OM53758U)
Check the wattage of the light bulb to be replaced. ( P. 5 0 9 )
■Front
Vehicles with discharge headlights
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
Bulb locations
Front turn signal light
Fog light (if equipped)1
2

4337-3. Do-it-yourself maintenance
7
Maintenance and care
IS350/250_U (OM53758U)
Vehicles with LED headlights
■Rear
Fog light (if equipped)
Front turn signal light1
2
Back-up light
Rear turn signal light1
2

4347-3. Do-it-yourself maintenance
IS350/250_U (OM53758U)
■Fog lights (if equipped) Remove the 2 fender liner screws
under the fog light and pull back
the fender liner.
Unplug the connector while
pressing the lock release.
Turn the bulb base counterclock-
wise.
Set the new light bulb.Hold the bulb base at an angle
of about 45 degrees as shown
in the illustration and insert it
so that the 3 tabs on the light
bulb are aligned with the
mounting.
Turn the light bulb clockwise to
install it.
Replacing light bulbs
1
2
3
4
1
2

4357-3. Do-it-yourself maintenance
7
Maintenance and care
IS350/250_U (OM53758U)
Set the connector.
After installing the connector, shake
the bulb base gently to check that it is
not loose, turn the fog lights on once
and visually confirm that no light is
leaking through the mounting.
Reinstall the fender liner with the
2 screws.
5
6