2014 Lexus GS350 Using the air conditioning system and defogger / LEXUS 2014 GS350 OWNERS MANUAL (OM30D41U)

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GS350_OM_OM30D41U_(U)6-3. Do-it-yourself maintenance
6
Maintenance and care
Air conditioning filter
Turn the engine switch off.
Open the glove box. Lift up the
side with the stay, disconnect the
stay tabs and remove the parti-
tion by pulling horizontally.
Press the tabs and remove the fil-
ter cover.
Press the tabs and remove the fil-
ter case.
The air conditioning filter must be changed regularly to maintain air
conditioning efficiency.
Removal method
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GS350_OM_OM30D41U_(U)
6-3. Do-it-yourself maintenance
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.
■Changing interval
Inspect and replace the air conditioning f ilter according to the maintenance sched-
ule. 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 “S cheduled 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.

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GS350_OM_OM30D41U_(U)6-3. Do-it-yourself maintenance
6
Maintenance and care
Electronic key battery
●Flathead screwdriver
●Small flathead screwdriver
●Lithium battery CR2032
Take out the mechanical key.
Remove the cover.
To prevent damage to the key, cover
the tip of the screwdriver with a rag.
Remove the depleted battery.
Insert a new battery with the “+” termi-
nal facing up.
Replace the battery with a new one if it is depleted.
You will need the following items:
Replacing the battery
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GS350_OM_OM30D41U_(U)
6-3. Do-it-yourself maintenance
■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.
■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.

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GS350_OM_OM30D41U_(U)6-3. Do-it-yourself maintenance
6
Maintenance and care
Checking and replacing fuses
Turn the engine switch off.
After a system failure, see “Fuse la yout and amperage ratings” for
details about which fuse to check. ( P. 664)
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.
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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GS350_OM_OM30D41U_(U)
6-3. Do-it-yourself maintenance
Driver’s side instrument panel
Remove the lid.
Passenger’s side instrument panel
Remove the lid.
Tr u n k
Push the tab in and lift the lid off.
Remove the lid.

GS350_OM_OM30D41U_(U)
6636-3. Do-it-yourself maintenance
6
Maintenance and care
Remove the fuse with the pullout
tool.
Only type A fuse 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.
Type C and D:
Contact your Lexus dealer.
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5
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2
Ty p e AType B
Ty p e CType D

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GS350_OM_OM30D41U_(U)
6-3. Do-it-yourself maintenance
■Engine compartment (type A fuse box)
Fuse layout and amperage ratings
FuseAmpereCircuit
1LH J/B-B40Left-hand junction block
2VGRS40VGRS
3RH J/B-B40Right-hand junction block
4P/ I - B N O. 280F/PMP, EFI MAIN, A/F HTR, EDU, IG2
MAIN
5ALT150RH J/B ALT, P/I ALT, LH J/B ALT, LUG J/B
ALT
6P/ I A LT100RR DEF, TAIL, FR FOG, DEICER, PANEL,
RR S/SHADE
7RH J/B ALT80Right-hand junction block
8MPX-B10
Smart access system with push-button start,
electric tilt and telescopic steering column,
power seats, head-up display, front right-
hand door ECU, gauges and meters, steer-
ing sensor, yaw rate and G sensor, overhead
module, front left-hand door ECU, power
trunk opener and closer, RR CTRL SW,
clock, body ECU, CAN gateway ECU