Lexus GS350 2010 Using The Audio System / LEXUS 2010 GS460 GS350 OWNERS MANUAL (OM30C80U)

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4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
■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
required. (For scheduled maintenance information, refer to the “Warranty and Ser-
vices Guide/Owner’s Manual Supplement/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 filter with water.

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4-3. Do-it-yourself maintenance
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Electronic key battery
Replace the battery with a new one if it is discharged.
■You will need the following items:
●Flathead screwdriver
●Small Phillips-head screwdriver
●Lithium battery (CR1632)
■Replacing 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

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4-3. Do-it-yourself maintenance
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Maintenance and care
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
■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 your Lexus
dealer.
●Dispose of used batteries according to the local laws.
■When the card key battery needs to be replaced
The battery for the card key is available only at Lexus dealers. Your Lexus dealer
can replace the battery for you.
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 components inside the electronic key.
●Do not bend the battery terminals.

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4-3. Do-it-yourself maintenance
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
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 START STOP” switch to OFF.
Remove the engine compartment cover if necessary.
P. 4 5 0
Open the fuse box cover.
■Engine compartment
Type A
Push the tabs in and lift the lid
off.
Type B
Push the tabs in and lift the lid
off.STEP1
STEP2
STEP3

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4-3. Do-it-yourself maintenance
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Maintenance and care
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
■Front controller in the engine compartment fuse box
(engine compartment: type B)
Lift the lid off while pushing the
tabs on either side.
■Left side instrument panel
Remove the lid.
■Right side instrument panel
Remove the lid.

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4-3. Do-it-yourself maintenance
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
■Luggage compartment
Remove the cover.
■Luggage compartment (vehicles with active stabilizer suspension
system)
Remove the lid.
After a system failure, see “Fuse layout and amperage ratings”
(P. 489) for details about which fuse to check.
Remove the fuse with the pull-
out tool.
STEP4
STEP5

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4-3. Do-it-yourself maintenance
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Maintenance and care
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Check if the fuse has blown.
Type A
Normal fuse
Blown fuse
Replace it with one of an appro-
priate amperage rating. The
amperage 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
amperage rating can be found
on the fuse box lid.
STEP6

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4-3. Do-it-yourself maintenance
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Type C
Normal fuse
Blown fuse
Contact your Lexus dealer.
Type D
Normal fuse
Blown fuse
Contact your Lexus dealer.

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4-3. Do-it-yourself maintenance
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Maintenance and care
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Fuse layout and amperage ratings
■Engine compartment (Type A)
GS460
FuseAmpereCircuit
1ECU-B10VGRS, EPS, driver’s seat switch
module
2ABS MAIN310Electronically controlled 
brake system
3TURN-HAZ15Turn signal lights, emergency flashers
4IG2 MAIN20IG2, GAUGE and IGN
5RAD NO.230Audio system
6D/C CUT20DOME and MPX-B
7RAD NO.130Audio system

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4-3. Do-it-yourself maintenance
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
FuseAmpereCircuit
8MPX-B10
Multiplex communication system,
front controller, door control system
(power door lock system, door cour-
tesy lights, power windows, power
rear view mirror control system, out-
side rear view mirror heaters), power
seat system, steering sensors, elec-
tronically controlled brake system, tilt
and telescopic steering wheel,
gauges and meters, combination
switch
9DOME10
Foot lights, vanity lights, gauges and
meters, steering spot light, steering
switch illumination, rear personal
lights, automatic transmission selec-
tor lever spot light, front personal
lights
10CDS10Noise filter
11ABS MAIN210Electronically controlled 
brake system
12ABS MOTOR30ABS
13ABS MAIN110Capacitor
14E/G-B60FR CTRL BATT, ETCS, ALT-S,
A/F HTR and INJ2
15P/ I - B60EFI NO.1, F/PMP and INJ
16ABS150VDIM
17RH J/B-B30AM2, DOOR FR and DOOR RR