wheel LEXUS RX450h 2015 Manual Online

Maintenance and care
4
6334-1. Maintenance and care
Cleaning and protecting
the vehicle exterior............. 634
Cleaning and protecting
the vehicle interior .............. 637
4-2. Maintenance
Maintenance
requirements ........................ 640
General maintenance .......... 643
Emission inspection and
maintenance (I/M)
programs................................ 647 4-3. Do-it-yourself
maintenance
Do-it-yourself service
precautions ........................... 648
Hood ........................................... 651
Positioning a floor jack ......... 652
Engine compartment ........... 654
12-volt battery ........................ 664
Tires............................................. 670
Tire inflation pressure............ 679
Wheels ...................................... 683
Air conditioning filter ........... 685
Electronic key battery.......... 687
Checking and replacing
fuses ........................................ 689
Headlight aim ......................... 705
Light bulbs ................................ 708

6344-1. Maintenance and care
Cleaning and protecting the vehicle exterior
■
Automatic car washes ●
Before washing the vehicle:
•Fold the mirrors.
• Turn off the power back door system.●
Brushes used in automatic car washes may scratch the vehicle surface and
harm your vehicle’s paint.●
In certain automatic car washes, the re ar spoiler may interfere with machine
operation. This may prevent the vehicle fr om being cleaned properly or result in
damage to the rear spoiler.
■
High pressure car washes
●
Do not allow the nozzles of the car wash to come within close proximity of the
windows.
●
Before using the car wash, check that the fuel filler door on your vehicle is closed
properly.Perform the following to protect the vehicle and maintain it in prime condi-
tion:
● Working from top to bottom, liber ally apply water to the vehicle
body, wheel wells and underside of the vehicle to remove any dirt
and dust.
● Wash the vehicle body using a sponge or soft cloth, such as a
chamois.
● For hard-to-remove marks, use car wash soap and rinse thor-
oughly with water.
● Wipe away any water.
● Wax the vehicle when the waterproof coating deteriorates.If water does not bead on a clean surface, apply wax when the vehicle
body is cool.

6354-1. Maintenance and care
4
Maintenance and care ■
Aluminum wheels ●
Remove any dirt immediately by using a neutral detergent. Do not use hard
brushes or abrasive cleaners. Do not us e strong or harsh chemical cleaners.
Use the same mild detergent and wax as used on the paint.●
Do not use detergent on the wheels when they are hot, for example after driving
for long distance in the hot weather.●
Wash detergent from the wheels immediately after use.■
Bumpers
Do not scrub with abrasive cleaners.
CAUTION■
When cleaning the windshield (vehicles with rain-sensing windshield wipers)
●
When the upper part of the windshield where the raindrop sensor is located is
touched by hand●
When a wet rag or similar is held close to the raindrop sensor●
If something bumps against the windshield●
If you directly touch the ra indrop sensor body or if something bumps into the
raindrop sensor■
Precautions regarding the exhaust pipe
Exhaust gasses cause the exhaus t pipe to become quite hot.
When washing the vehicle, be careful not to touch the pipe until it has cooled suffi-
ciently, as touching a hot exhaust pipe can cause burns. Set the wiper switch to off.
If the wiper switch is in , the wipers
may operate unexpected ly in the following
situations, and may result in hands being
caught or other serious injuries and cause
damage to the wiper blades.OFF

6364-1. Maintenance and care
NOTICE■
To prevent paint deterioration and corros ion on the body and components (alu-
minum wheels etc.) ●
Wash the vehicle immediately in the following cases:
• After driving near the sea coast
• After driving on salted roads
• If you see coal tar or tree sap on the paint surface
• If you see dead in sects, insect droppings or bird droppings on the paint
• After driving in an area contaminated with soot, oily smoke, mine dust, iron
powder or chemical substances
• If the vehicle becomes heavily soiled in dust or mud
• If liquids such as benzene and gasoline are spilled on the paint surface●
If the paint is chipped or scratched, have it repaired immediately.●
To prevent the wheels from corroding, remove any dirt and store in a place with
low humidity when storing the wheels.■
Cleaning the exterior lights ●
Wash carefully. Do not use organic substances or scrub with a hard brush.
This may damage the surfaces of the lights.●
Do not apply wax to the surfaces of the lights.
Wax may cause damage to the lenses.■
To prevent damage to the windshield wiper arms
When lifting the wiper arms away from th e windshield, pull the driver side wiper
arm upward first, and repeat for the passenger side. When returning the wipers to
their original position, do so from the passenger side first.■
When using an automatic car wash (vehicle s with rain-sensing windshield wipers)
Set the wiper switch to the off position.
If the wiper switch is in , the wipers may operate and the wiper blades may
be damaged.

6454-2. Maintenance
4
Maintenance and care Items Check points
Indicators/buzzers • Do the indicators and buzzers
function properly?
Lights • Do all the lights come on?
• Are the headlights aimed cor-
rectly? (  P. 7 0 5 )
Pa r k i n g b r a ke • Does the parking brake pedal
move smoothly?
• When parked on a slope and the
parking brake is on, is the vehicle
securely stopped?
Seat belts • Do the seat belts operate
smoothly?
• The seat belts should not be dam-
aged.
Seats • Do the seat controls operate prop-
erly?
Steering wheel • Does the steering wheel rotate
smoothly?
• Does the steering wheel have the
correct amount of free play?
• There should not be any strange
sounds coming from the steering
wheel.

6464-2. Maintenance
Vehicle exterior Items Check points
Doors • Do the doors operate smoothly?
Engine hood • Does the engine hood lock system
work properly?
Fluid leaks • There should not be any signs of
fluid leakage after the vehicle has
been parked.
Ti r e s • Is the tire inflation pressure cor-
rect?
• The tires should not be damaged or
excessively worn.
• Have the tires been rotated
according to the maintenance
schedule?
• The wheel nuts should not be loose.
Windshield wipers • The wiper blades should not show
any signs of cracking, splitting,
wear, contamination or deforma-
tion.
• The wiper blades should clear the
windshield without streaking or
skipping.
CAUTION
■
If the hybrid system is operating
Turn the hybrid system off and ensure that there is adequate ventilation before per-
forming maintenance checks.

6714-3. Do-it-yourself maintenance
4
Maintenance and care
Installing tire pressure warning valves and transmitters
When replacing tires or wheels, tire pressure warning valves and trans-
mitters must also be installed.
When new tire pressure warning va lves and transmitters are installed,
new tire pressure warning valve and transmitter ID codes must be regis-
tered in the tire pressure warning co mputer and the tire pressure warning
system must be initialized. Have tire pressure warning valve and transmit-
ter ID codes registered by your Lexus dealer. (  P. 6 7 3 )
Initializing the tire pressure warning system
■ The tire pressure warning system must be initialized in the following
circumstances:
● When rotating the tires
● When the tire inflation pressure is changed such as when changing
travelling speed or load weight
● When changing the tire size
When the tire pressure warning sy stem is initialized, the current tire
inflation pressure is set as the benchmark pressure.■ The tire pressure warning system
Your Lexus is equipped with a tire pressure warning system that uses
tire pressure warning valves and tr ansmitters to detec t low tire infla-
tion pressure before serious problems arise. (  P. 7 3 6 )

6734-3. Do-it-yourself maintenance
4
Maintenance and care Registering ID codes
The tire pressure warning valve and transmitter is equipped with a unique
ID code. When replacing a tire pressure warning valve and transmitter, it
is necessary to register the ID code. Ha ve the ID code registered by your
Lexus dealer. ■
When to replace your vehicle’s tires
Tires should be replaced if: ●
You have tire damage such as cuts, splits, cracks deep enough to expose the
fabric, and bulges indicating internal damage.●
A tire goes flat repeatedly or cannot be properly repaired due to the size or
location of a cut or other damage.
If you are not sure, consult with your Lexus dealer.■
Replacing tires and wheels
If the ID code of the tire pressure warn ing valve and transmitter is not registered,
the tire pressure warning system will not work properly. After driving for about 20
minutes, the tire pressure warning light blin ks for 1 minute and stays on to indicate a
system malfunction.■
Tire life
Any tire over 6 years old must be checked by a qualified technician even if it has sel-
dom or never been used or damage is not obvious.■
If the tread on snow tires wears down below 0.16 in. (4 mm)
The effectiveness of the tires as snow tires is lost.■
Routine tire inflation pressure checks
The tire pressure warning system does not replace routine tire inflation pressure
checks. Make sure to check tire inflation pressure as part of your routine of daily
vehicle checks.

6744-3. Do-it-yourself maintenance
■
Maximum load of tire
Check that the number given by dividing the maximum load by 1.10 of the replace-
ment tire is greater than 1 /2 of the Gr oss Axle Weight Ratings (GAWR) of either
the front axle or the rear axle, whichever is greater.
■
Tire types
1 Summer tires
Summer tires are high-speed performance tires best suited to highway driving
under dry conditions. Since summer tires do not have the same traction perfor-
mance as snow tires, summer tires are inadequate for driving on snow-covered
or icy roads. For driving on snow-covered roads or icy roads, the use of snow tires
is recommended. When installing snow tires, be sure to replace all four tires.
2 All season tires
All season tires are designed to provide better traction in snow and to be ade-
quate for driving in most winter conditions , as well as for use year round. All sea-
son tires, however, do not have adequa te traction performance compared with
snow tires in heavy or loos e snow. Also, all season tires fall short in acceleration
and handling performance compared with summer tires in highway driving.
3Snow tires
For driving on snow-covered roads or ic y roads, we recommend using snow tires.
If you need snow tires, select tires of the same size, construction and load capac-
ity as the originally installed tires. Since your vehicle has radial tires as original
equipment, make sure your snow tires also have radial construction. Do not install
studded tires without first checking local regulations for possible restrictions.
Snow tires should be installed on all wheels. (  P. 3 0 2 )For the GAWR, see the Certification Label.
For the maximum load of the tire, see the load
limit at maximum cold tire inflation pressure
mentioned on the sidewall of the tire.
(
 P. 8 1 3 )

6784-3. Do-it-yourself maintenance
NOTICE■
Repairing or replacing tires, wheels, ti re pressure warning valves, transmitters
and tire valve caps ●
When removing or fitting the wheels, tires or the tire pressure warning valves and
transmitter, contact your Lexus dealer as the tire pressure warning valves and
transmitters may be damage d if not handled correctly.●
When replacing tire valve caps, do not us e tire valve caps other than those speci-
fied. The cap may become stuck.■
To avoid damage to the tire pressure warning valves and transmitters
When a tire is repaired with liquid seal ants, the tire pressure warning valve and
transmitter may not operate properly. If a liquid sealant is used, contact your Lexus
dealer or other qualified service shop as so on as possible. Make sure to replace the
tire pressure warning valve and transmitter when replacing the tire. (  P. 6 7 1 )■
Driving on rough roads
Take particular care when driving on roads with loose surfaces or potholes.
These conditions may cause losses in tire inflation pressure, reducing the cushion-
ing ability of the tires. In addition, driv ing on rough roads may cause damage to the
tires themselves, as well as the vehicle’s wheels and body.■
If tire inflation pressure of each tire becomes low while driving
Do not continue driving, or your tires and/or wheels may be ruined.