2011 LEXUS RX350 Owners Manual

491
4-3. Do-it-yourself maintenance
4

Maintenance and care
Wheels
nWhen replacing wheels
The wheels of your vehicle are equipped with tire pressure warning valves and
transmitters that allow the tire pressure warning system to provide advanced warn-
ing in the event of a loss in tire inflation pressure. Whenever wheels are replaced,
tire pressure warning valves and transmitters must be installed. (→P. 4 7 9 )
If a wheel is bent, cracked or heavily corroded, it should be replaced.
Otherwise, the tire may separate from the wheel or cause a loss of han-
dling control.
nWheel selection
When replacing wheels, care should be taken to ensure that they
are equivalent to those removed in load capacity, diameter, rim
width, and inset*.
Replacement wheels are available at your Lexus dealer.
*: Conventionally referred to as “offset”.
Lexus does not recommend using the following:
lWheels of different sizes or types
lUsed wheels
lBent wheels that have been straightened
nAluminum wheel precautions
lUse only Lexus wheel nuts and wrenches designed for use with
your aluminum wheels.
lWhen rotating, repairing or changing your tires, check that the
wheel nuts are still tight after driving 1000 miles (1600 km).
lBe careful not to damage the aluminum wheels when using tire
chains.
lUse only Lexus genuine balance weights or equivalent and a
plastic or rubber hammer when balancing your wheels.

492
4-3. Do-it-yourself maintenance
CAUTION
nWhen replacing wheels
lDo not use wheels that are a different size from those recommended in the
Owner’s Manual, as this may result in a loss of handling control.
lNever use an inner tube in a leaking wheel which is designed for a tubeless tire.
Doing so may result in an accident, causing death or serious injury.
NOTICE
nReplacing tire pressure warning valves and transmitters
lBecause tire repair or replacement may affect the tire pressure warning valves
and transmitters, make sure to have tires serviced by your Lexus dealer or other
qualified service shop. In addition, make sure to purchase your tire pressure
warning valves and transmitters at your Lexus dealer.
lEnsure that only genuine Lexus wheels are used on your vehicle.
Tire pressure warning valves and transmitters may not work properly with non-
genuine wheels.

493
4-3. Do-it-yourself maintenance
4

Maintenance and care
Air conditioning filter
The air conditioning filter must be cleaned or changed regularly to main-
tain air conditioning efficiency.
nRemoval method
Set the air conditioning system to recirculated mode.
(→P. 277)
The air conditioning filter case cannot be removed with the system in
outside air mode.
Turn the “ENGINE START STOP” switch off.
Open the glove box door. Lift
and remove the partition.
Remove the glove box cover.
Remove the filter cover.
STEP1
STEP2
STEP3
STEP4
STEP5

494
4-3. Do-it-yourself maintenance
nChecking 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 “Owner's
Manual Supplement” or “Scheduled Maintenance”.)
nIf air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
To remove the filter case, lift it
up and pull it out. Replace the fil-
ter with a new one.
The “↑UP” mark shown on the
filter should be pointing up.
nCleaning method
If the filter is dirty, clean by blow-
ing compressed air through the
filter from the underside.
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/cm2
or bar).
If an air gun is not available,
have the filter cleaned by
your Lexus dealer.
STEP6

495
4-3. Do-it-yourself maintenance
4

Maintenance and care
NOTICE
nTo prevent damage to the system
lWhen using the air conditioning system, make sure that a filter is always installed.
lWhen cleaning the filter, do not clean with water.

496
4-3. Do-it-yourself maintenance
Electronic key battery
Replace the battery with a new one if it is depleted.
nYou will need the following items:
lFlathead screwdriver
lSmall Phillips-head screwdriver
lLithium battery (CR1632)
nReplacing 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

497
4-3. Do-it-yourself maintenance
4

Maintenance and care
nUse a CR1632 lithium battery
lBatteries can be purchased at your Lexus dealer, local electrical appliance
shops or camera stores.
lReplace only with the same or equivalent type recommended by the manufac-
turer.
lDispose of used batteries according to the local laws.
nIf the electronic key battery is discharged
The following symptoms may occur:
lThe smart access system with push-button start and wireless remote control will
not function properly.
lThe operational range is reduced.
nWhen 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.
CAUTION
nRemoved 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
nFor normal operation after replacing the battery
Observe the following precautions to prevent accidents:
lAlways work with dry hands.
Moisture may cause the battery to rust.
lDo not touch or move any other components inside the remote control.
lDo not bend either of the battery terminals.

498
4-3. Do-it-yourself maintenance
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.
Remove the engine compartment cover. (→P. 464)
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”
for details about which fuse to check. (→P. 501)
STEP1
STEP2
STEP3
STEP4