2018 LEXUS RX450h audio

5096-2. Using the air conditioning system and defogger
RX450h_RX450hL _U_OM48F85U 6
Interior features 
Lexus Display Audio screen
Adjust the left-hand side tempera-
ture setting
Adjust the fan speed setting
Select to set auto mode on/off
Select to set eco mode on/off
( → P. 519)
Select to set cooling and dehumidifi-
cation function on/off If the indicator is turned off, the system will blow ambi ent temperature air
or heated air.
Display the option control screen ( → P. 510)
Select the air flow mode
Adjust the right-hand side temperature setting 
Navigation system screen
Adjust the left-hand side tempera-
ture setting
Adjust the fan speed setting
Select the air flow mode
Adjust the right-hand side tempera-
ture setting
Display the option control screen
( → P. 510)
Select to set automatic mode on/off
Select to set cooling and de humidification function on/offIf the indicator is turned off, the system will blow ambient temperature air
or heated air.
Select to set eco mode on/off ( → P. 519)Control screen (RX450h) 1
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510 6-2. Using the air conditio ning system and defogger
RX450h_RX450hL _U_OM48F85U■
Option control screen
Select on the air conditioning control screen to display the option
control screen. The functions can be switched on and off.
Prevent ice from building up on the windshield and wiper blades (if
equipped) ( → P. 516)
Select to set S-FLOW mode ( → P. 514)■
Side display operation screen (Vehicle s with a navigation system [12.3-inch
display])
Select the air flow mode
Adjust the left-hand side tem-
perature setting
Adjust the fan speed setting
Adjust the right-hand side tem-
perature setting
Select to set auto mode on/off
Select to set cooling and dehu-
midification function on/off If the indicator is turned off, the system will blow ambient temperature air
or heated air. 
Lexus Display Audio screen 
Navigation system screen
1
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5
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5116-2. Using the air conditioning system and defogger
RX450h_RX450hL _U_OM48F85U 6
Interior features 
Lexus Display Audio screen
Adjust the left-hand side tempera-
ture setting
Adjust the fan speed setting
Select to set auto mode on/off
Select to set eco mode on/off
( → P. 519)
Select to set cooling and dehumidifi-
cation function on/off If the indicator is turned off, the system will blow ambi ent temperature air
or heated air.
Adjust the temperature for driver, passe nger and rear seats separately (“3-
ZONE” mode) ( → P. 513)
Display the rear air condit ioning control screen ( → P. 515)
Display the option control screen ( → P. 512)
Select the air flow mode
Adjust the right-hand side temperature setting 
Navigation system screen
Adjust the left-hand side tempera-
ture setting
Adjust the fan speed setting
Select the air flow mode
Adjust the right-hand side tempera-
ture setting
Display the option control screen
( → P. 512)
Select to set automatic mode on/off
Select to set cooling and de humidification function on/offIf the indicator is turned off, the system will blow ambient temperature air
or heated air.
Adjust the temperature for driver, passe nger and rear seats separately (“3-
ZONE” mode) ( → P. 513)
Select to set eco mode on/off ( → P. 519)
Display the rear air condit ioning control screen ( → P. 515)Control screen (RX450hL) 1
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512 6-2. Using the air conditio ning system and defogger
RX450h_RX450hL _U_OM48F85U■
Option control screen
Select on the air conditioning control screen to display the option
control screen. The functions can be switched on and off.
Prevent ice from building up on the windshield and wiper blades (if
equipped) ( → P. 516)
Select to set S-FLOW mode ( → P. 514)■
Side display operation screen (Vehicle s with a navigation system [12.3-inch
display])
Select the air flow mode
Adjust the left-hand side tem-
perature setting
Adjust the fan speed setting
Adjust the right-hand side tem-
perature setting
Select to set auto mode on/off
Select to set cooling and dehu-
midification function on/off If the indicator is turned off, the system will blow ambient temperature air
or heated air.
Adjust the temperature for driver, passenger and rear seats separately (“3-
ZONE” mode) ( → P. 513)
Lexus Display Audio screen 
Navigation system screen
1
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5156-2. Using the air conditioning system and defogger
RX450h_RX450hL _U_OM48F85U 6
Interior features Press the “REAR” button or select on the air conditioning control screen
to display the rear air conditioning control screen.
Adjust the temperature setting
Adjust the fan speed setting
Select to set auto mode on/off
Turn the fan off ■
Using the automatic mode
Select the “REAR AUTO”.
Adjust the temperature setting.
To stop the operation, select “REAR OFF”.■
Automatic mode indicator
If the fan speed setting or air flow modes are operated, the automatic mode
indicator goes off. However, automati c mode for functions other than that
operated is maintained.Changing the rear seat settings (RX450hL)
Lexus Display Audio screen 
Navigation system screen
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548 6-5. Using the other interior features
RX450h_RX450hL _U_OM48F85U 
Vehicles with a Lexus Display Audio system
The clock can be adjusted by pressing
the buttons.
Pressing and holding will move the
clock hands backward.
Pressing and holding will move the
clock hands forward. 
Vehicles with a navigation system
The GPS clock's time is automatically
adjusted by utilizing GPS time informa-
tion. For details, refer to “NAVIGATION
SYSTEM OWNER’S MANUAL”.
A portable device, such as a smartphone or mobile battery, can be charged by
just placing it on the charging area, prov ided the device is compatible with the Qi
wireless charging standard created by the Wireless Power Consortium.
The wireless charger cannot be used with a portable device that is larger than
the charging area. Additionally, dependin g on the portable device, the wireless
charger may not operate properly. Refer to the operation manual of the portable
device. ■
The “Qi” symbol
The “Qi” symbol is a trademark of the Wireless Power Consortium.Clock 1
2
Wireless charger (if equipped)

586 7-1. Maintenance and care
RX450h_RX450hL _U_OM48F85UNOTICE ■
Cleaning detergents ●
Do not use the following types of detergent, as they may discolor the vehicle interior
or cause streaks or damage to painted surfaces:
• Non-seat portions: Organic substances su ch as benzene or gasoline, alkaline or
acidic solutions, dye, and bleach
• Seats: Alkaline or ac idic solutions, such as thinner, benzene, and alcohol●
Do not use polish wax or polis h cleaner. The instrument pane l’s or other interior part’s
painted surface may be damaged. ■
Preventing damage to leather surfaces
Observe the following precautions to avoid damage to and deterioration of leather
surfaces: ●
Remove any dust or dirt from leather surfaces immediately.●
Do not expose the vehicle to direct sunlight for extended periods of time. Park the
vehicle in the shade, especially during summer. ●
Do not place items made of vinyl, plastic, or containing wax on the upholstery, as they
may stick to the leather su rface if the vehicle interior heats up significantly.■
Water on the floor
Do not wash the vehicle floor with water.
Vehicle systems such as the audio system ma y be damaged if wate r comes into contact
with electrical components such as the au dio system above or un der the floor of the
vehicle. Water may also cause the body to rust. ■
When cleaning the inside of the windshield
Do not allow glass cleaner to contact the lens. Also, do not touch the lens.
( → P. 281) ■
Cleaning the inside of the rear window ●
Do not use glass cleaner to clean the rear window, as this may cause damage to the
rear window defogger heater wires or antenna. Use a cloth dampened with luke-
warm water to gently wipe the window clean. Wipe th e window in strokes running
parallel to the heater wires or antenna. ●
Be careful not to scratch or damage the heater wires or antenna.

6658-2. Steps to take in an emergency
8
When trouble arises
RX450h_RX450hL _U_OM48F85U■
The tire pressure warning light ma y come on due to natural causes
The tire pressure warning light may come on due to natural causes such as natural air
leaks and tire inflation pressure changes caus ed by temperature. In this case, adjusting
the tire inflation pressure will turn off the warning light (aft er a few minutes).■
When a tire is replaced with a spare tire
The compact spare tire is not equipped with a tire pressure warning valve and transmit-
ter. If a tire goes flat, the tire pressure warning light will not turn off even though the flat
tire has been replaced with the spare tire. Replace the spare tire with the repaired tire
and adjust the tire inflation pressure. The tire pressure warnin g light will go off after a few
minutes. ■
Conditions that the tire pressure wa rning system may not function properly
→ P. 616 ■
Warning buzzer
In some cases, the buzzer ma y not be heard due to being in a noisy location or audio
sound. ■
Customization
Some functions can be customized. ( → P. 736)
WARNING ■
If both the ABS and the brake sy stem warning lights remain on
Stop your vehicle in a safe place immediat ely and contact your Lexus dealer. The vehi-
cle will become extremely unstable during br aking, and the ABS system may fail, which
could cause an accident resultin g in death or serious injury.■
When the electric power steering system warning light comes on
When the light comes on yellow, the assist to the power steering is restricted. When the
light comes on red, the assist to the power steering is lost and ha ndling operations of
the steering wheel become extremely heavy. When steering wheel operations are
heavier than usual, grip the steering wheel firmly and operate it using more force than
usual. ■
If the tire pressure warning light comes on
Be sure to observe the following precaution s. Failure to do so could cause a loss of
vehicle control and result in death or serious injury.●
Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pressure
immediately. ●
If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire . Check the tires. If a tire is flat, change it
with the spare tire and have the flat tire repaired by the nearest Lexus dealer. ●
Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could lose
control of the steering wheel or the brakes. ■
If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.