maintenance LEXUS RX350 2016 Workshop Manual

5957-3. Do-it-yourself maintenance
7
Maintenance and care
RX350_U_OM48E90U ■
Instructions for checking tire inflation pressure
When checking tire inflation pressure, observe the following: ●
Check only when the tires are cold.
If your vehicle has been parked for at least 3 hours or has not been driven for more than
1 mile or 1.5 km, you will get an accurate cold tire inflation pressure reading. ●
Always use a tire pressure gauge.
It is difficult to judge if a tire is prop erly inflated based only on its appearance.●
It is normal for the tire inflation pressure to be higher after driving as heat is generated
in the tire. Do not reduce tire inflation pressure after driving. ●
Never exceed the vehicle capacity weight.
Passengers and luggage weight should be placed so that the vehicle is balanced.
WA R N I N G ■
Proper inflation is critical to save tire performance
Keep your tires properly inflated.
If the tires are not properly inflated, the following conditions may occur which could
lead to an accident resulting in death or serious injury: ●
Excessive wear ●
Uneven wear ●
Poor handling ●
Possibility of blowouts result ing from overheated tires●
Air leaking from between tire and wheel ●
Wheel deformation and/or tire damage ●
Greater possibility of tire damage while driving (due to road hazards, expansion
joints, sharp edges in the road, etc.)
NOTICE ■
When inspecting and adjust ing tire inflation pressure
Be sure to put the tire valve caps back on.
If a valve cap is not installed, dirt or moisture may get into the valve and cause an air
leak, resulting in decreased tire inflation pressure.

596 7-3. Do-it-yourself maintenance
RX350_U_OM48E90U 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: ●
Wheels of different sizes or types ●
Used wheels ●
Bent wheels that have been straightened ●
Use only Lexus wheel nuts and wrenches designed for use with your alumi-
num wheels. ●
When rotating, repairing or changing your tires, check that the wheel nuts are
still tight after driving 1000 miles (1600 km). ●
Be careful not to damage the aluminum wheels when using tire chains. ●
Use only Lexus genuine balance weights or equivalent and a plastic or rubber
hammer when balancing your wheels. ■
When replacing wheels
The wheels of your vehicle are equipped with tire pressure warning valves and transmit-
ters that allow the tire pressure warning system to provide advance warning in the event
of a loss in tire inflation pressure. Whenever wheels are replaced, tire pressure warning
valves and transmitters must be installed. (  P. 5 8 5 )Wheels If a wheel is bent, cracked or heavily corroded, it should be replaced. Other-
wise, the tire may separate from the whee l or cause a loss of handling control.
Wheel selection
Aluminum wheel precautions

5977-3. Do-it-yourself maintenance
7
Maintenance and care
RX350_U_OM48E90U WA R N I N G ■
When replacing wheels ●
Do 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. ●
Never 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. ■
Use of defective wheels prohibited
Do not use cracked or deformed wheels.
Doing so could cause the tire to leak air during driving, possibly causing an accident.
NOTICE ■
Replacing tire pressure warning valves and transmitters ●
Because tire repair or replacement may affect the tire pressure warning valves and
transmitters, make sure to have tires servic ed by your Lexus dealer or other qualified
service shop. In addition, make sure to pu rchase your tire pressure warning valves
and transmitters at your Lexus dealer. ●
Ensure that only genuine Lexus wheels are used on your vehicle.
Tire pressure warning valves and transmitte rs may not work properly with non-genu-
ine wheels. ■
Selectable Color Trim (if equipped) ●
If rattles, noise, or ot her problems occur while
Selectable Color Trim are installed, contact
your Lexus dealer. ●
Do not remove or install Selectable Color
Trim yourself, as it may be damaged. Have the
Selectable Color Trim removed and installed
by your Lexus dealer.

598 7-3. Do-it-yourself maintenance
RX350_U_OM48E90U Turn the engine switch off.
Open the glove box. Slide off the
damper.
Push in the glove box on the vehicle’s
outer side to disconnect the claws.
Then pull out the glove box and dis-
connect the lower claws.
Remove the cover.Air conditioning filter The air conditioning filter must be changed regularly to maintain air condi-
tioning efficiency.
Removal method 1
2
3
4

5997-3. Do-it-yourself maintenance
7
Maintenance and care
RX350_U_OM48E90U Remove the filter cover.
Unlock the filter cover.
Move the filter cover in the direc-
tion of the arrow, and then pull it
out of the claws.
Remove the filter case. There may be foreign objects on top of
the air conditioning filter.
Remove the air conditioning filter
from the filter case and replace it
with a new one. The “  UP” marks shown on the filter
and the filter case should be pointing up.
■
Checking interval
Inspect and replace the air conditioning filt er according to the ma intenance schedule. In
dusty areas or areas with heavy traffic flow, early replacement may be required. (For
scheduled maintenance informat ion, please refer to the “Owner’s Manual Supplement”
or “Scheduled Maintenance”.) ■
If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary. ■
Air conditioning filter with deodorizing function
When fragrances are placed in your vehicle, the deodorizing effect may become signifi-
cantly weakened in a short period.
When an air conditioning odor comes out cont inuously, replace the air conditioning filter.5
1
2
6
7

600 7-3. Do-it-yourself maintenance
RX350_U_OM48E90U NOTICE ■
When using the air conditioning system
Make sure that a filter is always installed.
Using the air conditioning system without a filter may cause damage to the system.■
To prevent damage to the filter cover
When moving the filter cover in the direction of
arrow to release the fitting, pay attention not to
apply excessive force to the claws. Otherwise,
the claws may be damaged.

6017-3. Do-it-yourself maintenance
7
Maintenance and care
RX350_U_OM48E90U Change the rest position of the windshield wipers to the service position using
the wiper lever and then lift a windshield wiper. (  P. 2 5 4 )
While pressing and holding the
wiper blade lock release button,
remove the wiper blade. When performing this operation, make
sure to hold the hook portion of the
wiper arm securely.
While disengaging the cap lock,
using a tool such as a flathead
screwdriver if necessary, remove the
wiper insert. Hold the cap on the end of the wiper
insert when removing the wiper insert.
(The cap is integrated into the wiper
insert.)
If using a screwdriver, make sure to wrap
its tip with tape to protect the wiper
blade.
Install a new wiper insert. Make sure to push the wiper insert firmly until the cap lock is engaged.
After installation, check that the cap lock is locked securely.
Install the wiper blade to the wiper arm. Make sure to push the wiper blade until it is locked.
When performing this operation, make sure to hold the hook portion of the wiper arm
securely.
After installation, check that the wiper blade is locked securely.Windshield wiper inserts Replacing a windshield wiper insert 1
Hook portion12
Cap lock3
14
5

602 7-3. Do-it-yourself maintenance
RX350_U_OM48E90U After replacing the wiper inserts, place the windshield wipers on the wind-
shield and lower them to the retracted position. (  P. 2 5 5 )Do not drive the vehicle with the windshield wipers lifted. ■
Replacing the rear wiper insert
Have the rear wiper insert re placed by your Lexus dealer.■
Handling of the windshield wiper blades and inserts
Improper handling of the windshield wiper blades and inserts may cause them to be
damaged. If it is difficult to follow the wiper blade and insert replacement procedure pre-
cisely, contact your Lexus dealer. 6

6037-3. Do-it-yourself maintenance
7
Maintenance and care
RX350_U_OM48E90U ●
Flathead screwdriver ●
Lithium battery CR2032
Take out the mechanical key.
Remove the cover. To prevent damage to the key, cover the
tip of the flathead screwdriver with a
tape.
Remove the depleted battery. Insert a new battery with the “+” termi-
nal facing up.Electronic key battery Replace the battery with a new one if it is depleted.
You will need the following items:
Replacing the battery 1
2
3

604 7-3. Do-it-yourself maintenance
RX350_U_OM48E90U ■
Use a CR2032 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 manufacturer. ●
Dispose of used batteries according to the local laws. ■
If the electronic key battery is depleted
The following symptoms may occur: ●
The smart access system with push-button start and wireless remote control will not
function properly. ●
The operational range will be reduced.
WA R N I N G ■
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.
NOTICE ■
For normal operation afte r 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 component inside the remote control. ●
Do not bend either of the battery terminals.