2012 Lexus GX460 maintenance

643
4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_U.S.A. (OM60J00U)
■Changing 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.
■Cleaning method
If the filter is dirty, clean by blow-
ing compressed air through the
filter from the under side.
Hold the air gun 2 in. (5 cm)
from the filter and blow for
approximately 2 minutes at 72
psi (500 kPa, 5.0 kgf/cm
2 or
bar).
If an air gun is not available, have
the filter cleaned by your Lexus
dealer.

644
4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60J00U)
Electronic key battery
Replace the battery with a new one if it is depleted.
■You will need th e following items:
● Flathead screwdriver
● Small Phillips-head screwdriver
● Lithium battery (CR1632)
■ Replacing the battery
Take out the mechanical key.
Remove the cover.
To prevent damage to the key,
cover the tip of the screwdriver
with a rag.
STEP1
STEP2

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4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_U.S.A. (OM60J00U)
■Use a CR1632 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 manufac-
turer.
●Dispose of used batteries according to the local laws.
■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.
Remove the depleted battery.
Insert a new battery with the “+”
terminal facing up.
STEP3

646
4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60J00U)
CAUTION
■Removed battery and other parts
Keep away from children. These parts are small and if swallowed by a child, they can
cause choking. 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 components inside the remote control.
●Do not bend the battery terminals.

647
4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_U.S.A. (OM60J00U)
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 off.
Open the fuse box cover.
Engine compartment Push the tab in and lift the lid off.
Driver’s side instrument panel Remove the lid.
After a system failure, see “Fuse layout and amperage ratings”
(→ P. 650) for details about which fuse to check.
Remove the fuse with the pull-out tool.STEP1
STEP2
STEP3
STEP4

648
4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60J00U)
Only type A fuse can be
removed using the pullout tool.
Check if the fuse has blown.
Ty p e A Normal fuse
Blown fuse
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 B
Normal fuse
Blown fuse
Contact your Lexus dealer.
STEP5

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4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_U.S.A. (OM60J00U)
Ty p e CNormal fuse
Blown fuse
Contact your Lexus dealer.
Ty p e DNormal fuse
Blown fuse
Contact your Lexus dealer.

650
4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60J00U)
Fuse layout and amperage ratingsEngine compartment
FuseAmpereCircuit
1A/C RR40 ARear air conditioning system
2AIR SUS50 AAir suspension system, AIR SUS
NO.2
3INV15 AInverter
4DEF30 ARear window defogger
5DEICER20 AWindshield wiper deicer