2007 Lexus GS350 maintenance

407
4-3. Do-it-yourself maintenance
4
Maintenance and care
■Cleaning method
If the filter is dirty, clean by blow -
ing compressed air through the
filter fr

om the downward side.
Hold the air gun 2 in. (5cm)
from the filter and blow for
approximately 2 minutes at 72
psi (500 kPa, 5.0 kgf/cm
2 or
bar).
If it is not available, have the filter
cleaned b
y your Lexus dealer.
■Replacement method
Remove the air conditioning fil-
ter from the filter case and
r
eplace it with a new one.
The “ UP” marks shown on the
filter and the filter case should
be pointing up.

408
4-3. Do-it-yourself maintenance
■Checking interval
Inspect and replace the air conditioning filter according to the maintenance sched-
ule. In dusty areas or areas with heavy traffic flow, early replacement may be
r
equired. (For scheduled maintenance information, refer to the “Warranty and Ser -
vices Guide/Owner's Manual Supp le
ment/Scheduled Maintenance”.)
■If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
NOTICE
■To prevent damage to the system
●When using the air conditioning system, make sure that a filter is always installed.
●When cleaning the filter, do not clean the with water.

409
4-3. Do-it-yourself maintenance
4
Maintenance and care
Electronic key battery
Replace the battery with a new one if it is discharged.
■You will need the following items:
●F
lathead screwdriver
●Small Phillips-head sc rewd
river
● Lithium batter
y (CR1632)
■ R
eplacing the battery
Take out the mechanical key.
Remove the cover.
Remove the depleted battery.
Insert a new battery with the “+”
terminal facing up.
STEP1
STEP2
STEP3

410
4-3. Do-it-yourself maintenance
■If the electronic key battery is discharged
The following symptoms may occur.
●The smart access system with push-button start and wireless remote control will
not function properly.
●The operational range is reduced.
■Use a CR1632 lithium battery
●Batteries can be purchased at your Lexus dealer, jewelers, or camera stores.
●Replace only with the same or equivalent type recommended by a Lexus dealer.
●Dispose of used batteries according to the local laws.
CAUTION
■Removed battery and other parts
Keep away from children. 
These parts are small and if swallowed by a child they can cause choking.
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 comp onents inside the electronic key.
●Do not bend the battery terminals.

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4-3. Do-it-yourself maintenance
4
Maintenance and care
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.
Turn the engine switch to “OFF” mode.
Remove the engine compartment cover if necessary.
P. 3 7 8
Open the fuse box cover.
Engine compartment (type A)
Push the tabs in and lift the lid
of
f.
Engine compartment (Type B) Push the tabs in and lift the lid
of
f.
STEP1
STEP2
STEP3

412
4-3. Do-it-yourself maintenance
Driver's side instrument panel
Remove the lid.
Passenger's side instrument panel Remove the lid.
Luggage compartment Remove the cover.

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4-3. Do-it-yourself maintenance
4
Maintenance and care
Luggage compartment (vehicles with active stabilizer suspension
system)
Remove the lid.
After a system failure, see “Fuse la y
out and amperage ratings”
( P. 4 1 8 ) for details about which fuse to check.
Remove the fuse with the pull-
out tool.STEP4
STEP5

414
4-3. Do-it-yourself maintenance
Check if the fuse has blown.
Type ANormal fuse
Blown fuse
Replace it with one of an appro-
priate amperage rating. The
amper
age rating can be found
on the fuse box lid.
Type B
Normal fuse
Blown fuse
Replace it with one of an appro-
priate amperage rating. The
amper
age rating can be found
on the fuse box lid.
Type C
Normal fuse
Blown fuse
Contact your Lexus dealer.
STEP6