2014 LEXUS RX270 maintenance

500
4-3. Do-it-yourself maintenance
RX350/270_EE
■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, please refer to the “Lexus Ser-
vice Booklet” or “Lexus Warranty Booklet”.)
■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.
Remove the air conditioning fil-
ter and replace it with a new
one.
The “↑UP” mark shown on the
filter should be pointing up.
STEP5
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501
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX350/270_EE
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 battery cover bolts
and remove the battery cover.
STEP1
STEP2
STEP3
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502
4-3. Do-it-yourself maintenance
RX350/270_EE
■Use a CR1632 lithium battery
●Batteries can be purchased at any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional, 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 entry & start system and wireless remote control will not function
properly.
●The operational range is reduced.
■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.
Remove the depleted battery.
Insert a new battery with the “+”
terminal facing up.
STEP4
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503
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX350/270_EE
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.
■Certification for the smart entry & start system
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.
DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS.
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 either of the battery terminals.
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504
4-3. Do-it-yourself maintenance
RX350/270_EE
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.
After a system failure, see “Fuse layout and amperage ratings”
for details about which fuse to check. (→P. 507)
Remove the engine compartment cover. (→P. 4 7 0 )
Open the fuse box cover.
Engine compartment
Push the tab in and lift the lid off.
Driver’s side instrument panel
Remove the lid.STEP1
STEP2
STEP3
STEP4
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505
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX350/270_EE
Remove the fuse with the pull-
out 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
Replace the blown fuse with a
new fuse of an appropriate
amperage rating. The amperage
rating can be found on the fuse
box lid.
STEP5
STEP6
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506
4-3. Do-it-yourself maintenance
RX350/270_EE
Ty p e C
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 D
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 E
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.
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507
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX350/270_EE
Fuse layout and amperage ratings
■Engine compartment
FuseAmpereCircuit
1RDI FAN NO. 180 AElectric cooling fans
2RR DEF50 ARear window defogger
3AIR SUS50 AElectronically modulated air suspen-
sion
4HEATER50 AAir conditioning system
5SPARE30 A
6SPARE40 A
7ABS NO. 230 AVehicle stability control
8H-LP CLN30 AHeadlight cleaner
9PBD30 APower back door
10ST30 AStarter system
11PD50 A
A/F, H-LP RH HI, H-LP LH LO, H-LP
RH LO, H-LP LH HI, HORN, S-
HORN, EFI MAIN NO. 2
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