driver LEXUS RX450H 2016 Owners Manual

4636-1. Maintenance and care
6
Maintenance and care
RX450h_U_OM0E013U
■Caring for leather areas
Lexus recommends cleaning the interior of the vehicle at least twice a year to maintain
the quality of the vehicle’s interior.
■Shampooing the carpets
There are several commercial foaming-type cleaners available. Use a sponge or brush to
apply the foam. Rub in overlapping circles. Do not use water. Wipe dirty surfaces and let
them dry. Excellent results are obtained by keeping the carpet as dry as possible.
■Seat belts
Clean with mild soap and lukewarm water using a cloth or sponge. Also check the belts
periodically for excessive wear, fraying or cuts.
WARNING
■Water in the vehicle
●Do not splash or spill liquid in the vehicle, su ch as on the floor, in the hybrid battery
(traction battery) air vents, and in the luggage compartment.
Doing so may cause the hybrid battery, elec trical components, etc. to malfunction or
catch fire.
●Do not get any of the SRS components or wiring in the vehicle interior wet. (P. 40)
An electrical malfunction may cause the airbags to deploy or not function properly,
resulting in death or serious injury.
●Vehicles with wireless charger:
Do not let the wireless charger ( P. 434) get wet. Failure to do so may cause the
charger to become hot and cause burns or could cause electric shock resulting in
death or serious injury.
■Cleaning the interior (especially instrument panel)
Do not use polish wax or polish cleaner. Th e instrument panel may reflect off the wind-
shield, obstructing the driver’s view and leading to an accident, resulting in death or
serious injury.

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6
Maintenance and care
6-3. Do-it-yourself maintenance
Do-it-yourself service precautions
If you perform maintenance by yourself, be sure to follow the correct proce-
dure as given in these sections.
ItemsParts and tools
12-volt battery con-
dition (P. 483)•Grease
• Conventional wrench (for terminal clamp bolts)
Brake fluid level
( P. 481)
• FMVSS No.116 DOT 3 or SAE J1703 brake fluid
• Rag or paper towel
• Funnel (used only for adding brake fluid)
Engine/power con-
trol unit coolant level
( P. 479)
• “Toyota Super Long Life Coolan t” or a similar high quality
ethylene glycol-based non-silicate, non-amine, non-nitrite
and non-borate coolant with long-life hybrid organic acid
technology
For the U.S.A.:
“Toyota Super Long Life Coolant” is pre-mixed with 50%
coolant and 50% deionized water.
For Canada:
“Toyota Super Long Life Cool ant” is pre-mixed with 55%
coolant and 45% deionized water.
• Funnel (used only for adding coolant)
Engine oil level
(  P. 476)
• “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses ( P. 508)• Fuse with same amperage rating as original
Headlight aim*
(  P. 511)• Phillips-head screwdriver
Light bulbs
( P. 513)• Bulb with same number and wattage rating as original
• Flathead screwdriver•Wrench
Radiator and con-
denser ( P. 480)
Tire inflation pres-
sure (P. 496)• Tire pressure gauge• Compressed air source

4886-3. Do-it-yourself maintenance
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Your vehicle is equipped with a tire pressure warning system that uses tire pres-
sure warning valves and transmitters to detect low tire inflation pressure before
serious problems arise.
◆Installing tire pressure warning valves and transmitters
When replacing tires or wheels, tire pr essure warning valves and transmitters
must also be installed.
When new tire pressure wa rning valves and transmitters are installed, new ID
codes must be registered in the tire pressure warning computer and the tire
pressure warning system must be initia lized. Have tire pressure warning valve
and transmitter ID codes registered by your Lexus dealer. ( P. 489)
◆Initializing the tire pressure warning system
■The tire pressure warning system must be initialized in the following circum-
stances:
●When the tire inflation pressure is changed such as when changing travel-
ing speed.
●When the tire inflation pressure is changed such as when the tire size is
changed.
●When rotating the tires
When the tire pressure warning system is initialized, the current tire inflation
pressure is set as the benchmark pressure.
Tire pressure warning system
●The tire pressure detected by the tire
pressure warning system can be dis-
played on the multi-information display.
The illustration used is intended as an exam-
ple, and may differ from the image that is
actually displayed on the multi-information
display.
●If the tire pressure drops below a prede-
termined level, the driver is warned by a
screen display and a warning light.
( P. 538)
The illustration used is intended as an exam-
ple, and may differ from the image that is
actually displayed on the multi-information
display.

5046-3. Do-it-yourself maintenance
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Change the rest position of the windshie ld wipers to the service position using
the wiper lever and then lift a windshield wiper. ( P. 263)
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 th e 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 portion
12
Cap lock
3
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5066-3. Do-it-yourself maintenance
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●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

5086-3. Do-it-yourself maintenance
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Turn the power 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.
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have blown. If
this happens, check and repl ace the fuses as necessary.
1
2

5116-3. Do-it-yourself maintenance
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Maintenance and care
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Adjustment bolt A
Adjustment bolt B
Make sure the vehicle has a full tank of gasoline and the area around the
headlight is not deformed.
Park the vehicle on level ground.
Sit in the driver’s seat.
Bounce the vehicle several times.
Headlight aim (vehicles with single-beam head-
lights)
Vertical movement adjusting bolts
1
2
Before checking the headlight aim
1
2
3
4

5126-3. Do-it-yourself maintenance
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Using a Phillips-head screwdriver,
turn bolt A in either direction.
Remember the turning direction and the
number of turns.
Turn bolt B the same number of turns
and in the same direction as step .
If the headlight cannot be adjusted using
this procedure, take the vehicle to your
Lexus dealer to adjust the headlight aim.
Adjusting the headlight aim
1
2
1

5166-3. Do-it-yourself maintenance
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■Front side marker lights (vehicle s with single-beam headlights)
To ensure enough space to per-
form work, turn the steering
wheel to rotate the front wheel
away from the bulb to be
replaced.
Remove the 3 fender liner clips.
Turn the steering wheel to the left
when replacing the right side light
bulb, and turn the steering wheel to
the right when replacing the left side
light bulb.
When removing a fender liner clip,
use a flathead screwdriver to pry the
center portion out and then remove
the whole clip.
Pull back the fender liner until the
connector is visible.
Partially remove the fender liner
and turn the bulb base counter-
clockwise and remove it.
Replacing light bulbs
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5186-3. Do-it-yourself maintenance
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■Front turn signal lights (vehic les with single-beam headlights)
To ensure enough space to per-
form work, turn the steering
wheel to rotate the front wheel
away from the bulb to be
replaced.
Remove the 3 fender liner clips.
Turn the steering wheel to the left
when replacing the right side light
bulb, and turn the steering wheel to
the right when replacing the left side
light bulb.
When removing a fender liner clip,
use a flathead screwdriver to pry the
center portion out and then remove
the whole clip.
Pull back the fender liner until the
connector is visible.
Partially remove the fender liner
and turn the bulb base counter-
clockwise and remove it.
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