ECU LEXUS RX450H 2020 Workshop Manual

2534-3. Operating the lights and wipers
4
Driving
RX350/RX350L_U
With the headlights on, push the
lever away from you to turn on the
high beams.
Pull the lever toward you to the center
position to turn the high beams off.
Pull the lever toward you and release
it to flash the high beams once.
You can flash the high beams with the
headlights on or off.
AFS (Adaptive Front-lighting System) secures excellent visibility at intersections
and on curves by automatically adjusting the direction of the light axis of the
headlights according to vehicle speed and the degree of the tire’s angle as con-
trolled by steering input.
AFS operates at speeds of 6 mph (10 km/h) or higher.
●When the steering wheel or turn signal lever is operated while the headlights
are on (low beam), a cornering light w ill turn on and light up the direction of
movement of the vehicle. The cornerin g lights are designed to ensure excel-
lent visibility when making a turn at an intersection.
However, when vehicle speed is approximately 22 mph (35 km/h) or higher, the cor-
nering lights will not turn on.
●When the shift lever is in R while the headlights are on (low beam), both cor-
nering lights will turn on. This is desi gned to enhance visibility when parking.
Turning on the high beam headlights
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2
AFS (Adaptive Front-lighting System) (if equipped)
Cornering lights (if equipped)

2604-3. Operating the lights and wipers
RX350/RX350L_U
(U.S.A.) or (Canada) Turns the fog lights off
Turns the fog lights on
■Fog lights can be used when
The headlights are on in low beam.
Fog light switch
The fog lights secure excellent visibility in difficult driving conditions, such as
in rain and fog.
Operating instructions
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2704-4. Refueling
RX350/RX350L_U
WARNING
■When refueling the vehicle
Observe the following precautions while refueling the vehicle. Failure to do so may
result in death or serious injury.
●After exiting the vehicle and before opening the fuel door, touch an unpainted metal
surface to discharge any static electricity. It is important to discharge static electricity
before refueling because sparks resulting fr om static electricity can cause fuel vapors
to ignite while refueling.
●Always hold the grips on the fuel tank cap and turn it slowly to remove it.
A whooshing sound may be heard when the fu el tank cap is loosened. Wait until the
sound cannot be heard before fully removing the cap. In hot weather, pressurized fuel
may spray out of the filler neck and cause injury.
●Do not allow anyone that has not discharged static electricity from their body to come
close to an open fuel tank.
●Do not inhale vaporized fuel.
Fuel contains substances th at are harmful if inhaled.
●Do not smoke while refueling the vehicle.
Doing so may cause the fuel to ignite and cause a fire.
●Do not return to the vehicle or touch any pe rson or object that is statically charged.
This may cause static electricity to build up, resulting in a possible ignition hazard.
■When refueling
Observe the following precautions to prevent fuel overflowing from the fuel tank:
●Securely insert the fuel nozzle into the fuel filler neck.
●Stop filling the tank after the fuel nozzle automatically clicks off.
●Do not top off the fuel tank.
NOTICE
■Refueling
Do not spill fuel during refueling.
Doing so may damage the vehicle, such as causing the emission control system to
operate abnormally or damaging fuel system components or the vehicle’s painted sur-
face.

2714-4. Refueling
4
Driving
RX350/RX350L_U
With the doors unlocked, press the
center of the rear edge of the fuel
filler door.
Push inward and take your hand away to
slightly open the fuel filler door. Then
open the door fully by hand.
Open the fuel filler door until it is securely locked.
Turn the fuel tank cap slowly and
remove it, then put it into the holder
on the fuel filler door.
Opening the fuel tank cap
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2
3

3204-5. Using the driving support systems
RX350/RX350L_U
■Conditions under which the BSM function may not function correctly
●The BSM function may not detect vehicles correctly in the following situations:
• When the sensor is misaligned due to a stro ng impact to the sensor or its surround-
ing area
• When mud, snow, ice, a sticke r, etc. is covering the sensor or surrounding area on
the rear bumper
• When driving on a road surf ace that is wet with standing water during bad weather,
such as heavy rain, snow, or fog
• When multiple vehicles are approaching wi th only a small gap between each vehicle
• When the distance between your vehicle and a following vehicle is short
• When there is a significant difference in speed between your vehicle and the vehicle that enters the detection area
• When the difference in speed between your vehicle and another vehicle is changing
• When a vehicle enters a detection area traveling at about the same speed as your vehicle
• As your vehicle starts from a stop, a vehicle remains in the detection area
• When driving up and down cons ecutive steep inclines, such as hills, dips on the road,
etc.
• When driving on roads with sharp bends, consecutive curves, or uneven surfaces
• When vehicle lanes are wide, or when driving on the edge of a lane, and the vehicle in an adjacent lane is far away from your vehicle
• When towing a trailer (vehicles with towing package)
• When items such as a bicycle carrier are installed on the rear of the vehicle
• When there is a significant difference in height between your vehicle and the vehicle that enters the detection area
• Immediately after the BSM function is turned on
●Instances of the BSM function unnecessarily detecting a vehicle and/or object may
increase in the following situations:
• When the sensor is misaligned due to a stro ng impact to the sensor or its surround-
ing area
• When the distance between your vehicle and a guardrail, wall, etc. that enters the detection area is short
• When driving up and down cons ecutive steep inclines, such as hills, dips on the road,
etc.
• When vehicle lanes are narrow, or when driv ing on the edge of a lane, and a vehicle
traveling in a lane other than the ad jacent lanes enters the detection area
• When driving on roads with sharp bends, consecutive curves, or uneven surfaces
• When the tires are slipping or spinning
• When the distance between your vehicle and a following vehicle is short
• When a bicycle carrier or other accessory is installed to the rear of the vehicle
• When towing a trailer (vehicles with towing package)

4265-4. Using the radio
RX350/RX350L_U
■If the satellite radio does not operate normally
If a problem occurs with the XM tuner, a message will appear on the screen. Refer to the
table below to identify the problem, an d take the suggested corrective action.
Contact the XM Listener Care Center at 1-877-447-0011 (U.S.A.) or 1-877-438-9677
(Canada).
SAT Check Antenna
The XM antenna is not connected. Check whether the XM
antenna cable is attached securely.
There is a short-circuit in the antenna or the surrounding
antenna cable. See a Lexus certified dealer.
SAT Ch Unauthorized
You have not subscribed to XM Satellite Radio. The radio is
being updated with the latest encryption code. Contact XM
Satellite Radio for subscripti on information. When a con-
tract is canceled, you can choose “Ch000” and all free-to-
air channels.
The premium channel you selected is not authorized. Wait
for about 2 seconds until the radio returns to the previous
channel or “Ch001”. If it does not change automatically,
select another channel. To listen to the premium channel,
contact XM Satellite Radio.
SAT No SignalThe XM signal is too weak at the current location. Wait until
your vehicle reaches a location with a stronger signal.
SAT LoadingThe unit is acquiring audio or program information. Wait
until the unit has rece ived the information.
SAT Channel Off AirThe channel you selected is not broadcasting any program-
ming. Select another channel.
-----There is no song/program title or artist name/feature asso-
ciated with the channel at that time. No action is required.
SAT Chan Unavailable
The channel you selected is no longer available. Wait for
about 2 seconds until the radio returns to the previous
channel or “Ch001”. If it does not change automatically,
select another channel.

4455-7. Connecting Bluetooth®
5
Lexus Display Audio system
RX350/RX350L_U
Turn the Bluetooth® connection setting of your device set to on.
Go to “Bluetooth
* Setup”: “MENU” button  “Setup”  “Bluetooth*”
Move the controller to the left and then select “Add Device”.
When this screen is displayed,
search for the device name dis-
played on this screen on your
Bluetooth
® device.
For operation of the Bluetooth® device,
see the manual that comes with your
Bluetooth
® device.
Register the Bluetooth® device
using your Bluetooth® device.
A PIN code are not required for SSP (Secur e Simple Pairing) compatible Bluetooth®
devices. Depending on the device, you may need to select Yes to register, or No to
cancel on the device.
If an error message is displayed, follow the guidance on the screen to try again.
*: Bluetooth is a registered trademark of Bluetooth SIG, Inc.
Go to “Bluetooth* Setup”: “MENU” button  “Setup”  “Bluetooth*”
Move the controller to the left and then select “Remove Device”.
Select the device to remove.
*: Bluetooth is a registered trademark of Bluetooth SIG, Inc.
Registering a Bluetooth® device
Bluetooth® compatible phones (HFP) and portable audio players (AVP) can
be registered simultaneously. You can register up to 5 Bluetooth® devices.
How to register a Bluetooth® device
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2
3
4
5
Removing a Bluetooth® device
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2
3

4755-11. Bluetooth®
5
Lexus Display Audio system
RX350/RX350L_U
In other situations
Even though all conceivable measures have been taken, the symptom status does not
change.
The cellular phone is not close enough to this system.
 Bring the cellular phone closer to this system.
The cellular phone is the most likely cause of the symptom.
 Turn the cellular phone off, remove and reinstall the battery pack, and then
restart the cellular phone.
 Enable the cellular phone’s Bluetooth
® connection.
 Stop the cellular phone’s security software and close all applications.
 Before using an application installed on the cellular phone, carefully check its
source and how its operation might affect this system.

5366-4. Using the storage features
RX350/RX350L_U
Pull down the hook to use. The cargo hooks are provided for securing loose items.
To hang the cargo net, use the cargo
net hooks and rear cargo hooks.
Luggage compartment features
Cargo hooks
RX350RX350L
WARNING
To avoid injury, always return the hooks to their stowed positions when not in use.
Cargo net hooks
WARNING
To avoid injury, always return the hooks to their stowed positions when not in use.

5576-5. Using the other interior features
6
Interior features
RX350/RX350L_U
The HomeLink® wireless control system in your vehicle has 3 buttons which can
be programmed to operate 3 different de vices. Refer to the programming meth-
ods on the following pages to determine the method which is appropriate for the
device.
HomeLink
® indicator light
Garage door operation indicators
HomeLink
® icon
Illuminates while HomeLink® is operat-
ing.
Buttons
■Before programming HomeLink®
●During programming, it is possible that garage doors, gates, or other
devices may operate. For this reason, make sure that people and objects
are clear of the garage door or other devices. ( P. 563)
●It is recommended that a new batter y be placed in the remote control
transmitter for more accurate programming.
●Garage door opener motors manufa ctured after 1995 may be equipped
with rolling code protection. If this is the case, you may need a stepladder
or other sturdy, safe device to reach the “Learn” or “Smart” button on the
garage door opener motor.
Garage door opener
The garage door opener can be programmed to operate garage doors, gates,
entry doors, door locks, home lightin g systems, security systems, and other
devices.
Programming the HomeLink®
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