battery LEXUS RX350 2019 Owner's Manual

2854-5. Using the driving support systems
4
Driving
RX350/RX350L_U ■
Operational conditions
The pre-collision system is enabled and the sy stem determines that the possibility of a
frontal collision with a vehicle or pedestrian is high.
Each function is operationa l at the following speeds:●
Pre-collision warning:
• Vehicle speed is between approximately 7 and 110 mph (10 and 180 km/h). (For
detecting a pedestrian, vehicle speed is between approximately 7 and 50 mph [10
and 80 km/h].)
• The relative speed between your vehicle and the vehicle or pedestrian ahead is
approximately 7 mph (10 km/h) or more. ●
Pre-collision brake assist:
• Vehicle speed is between approximately 20 and 110 mph (30 and 180 km/h). (For
detecting a pedestrian, vehicle speed is between approximately 20 and 50 mph
[30 and 80 km/h].)
• The relative speed between your vehicle and the vehicle or pedestrian ahead is
approximately 20 mph (30 km/h) or more. ●
Pre-collision braking:
• Vehicle speed is between approximately 7 and 110 mph (10 and 180 km/h). (For
detecting a pedestrian, vehicle speed is between approximately 7 and 50 mph [10
and 80 km/h].)
• The relative speed between your vehicle and the vehicle or pedestrian ahead is
approximately 7 mph (10 km/h) or more.
The system may not operate in the following situations: ●
If a battery terminal has been disconnected and reconnected and then the vehicle has
not been driven for a certain amount of time ●
If the shift lever is in R ●
If VSC is disabled (only the pre-collis ion warning function will be operational)■
Pedestrian detection function
■
Cancelation of the pre-collision braking
If either of the following occur while the pre-co llision braking function is operating, it will
be canceled: ●
The accelerator pedal is depressed strongly. ●
The steering wheel is turned sharply or abruptly.The pre-collision system detects pedestrians
based on the size, prof ile, and motion of a
detected object. However, a pedestrian may not
be detected depending on the surrounding
brightness and the motion, posture, and angle of
the detected object, preventing the system from
operating properly. (  P. 289)

3474-5. Using the driving support systems
4
Driving
RX350/RX350L_U ■
If a battery terminal has been disconnected and reconnected
The system needs to be initialized.
To initialize the system, drive the vehicle stra ight ahead for 5 seconds or more at a speed
of approximately 22 mph (35 km/h) or more. ■
If “ICS Unavailable” is displayed on the mu lti-information display and the ICS OFF indi-
cator is flashing ●
A sensor may be covered with ice, snow, dirt, etc. Remove the ice, snow, dirt, etc., from
the sensor to return the system to normal.
Also, due to ice forming on a sensor at low temperatures, a warning message may be
displayed or the sensor may not be able to detect an object. Once the ice melts, the
system will return to normal. ●
If this message continues to be displayed even after cleaning the se nsor, or is displayed
even though the sensor is clean, have the vehicle inspected by your Lexus dealer. ●
Initialization may not have been performed after a battery terminal was disconnected
and reconnected. Init ialize the system. (  P. 347)■
If “ICS Malfunction Visit Your Dealer” is di splayed on the multi-in formation display and
the ICS OFF indicator is flashing
The system may be malfunctioning. Have th e vehicle inspected by your Lexus dealer.

370 4-5. Using the driving support systems
RX350/RX350L_U  The estimated course lines move even though the steering wheel is straight
There is a malfunction in the signals being
output by the steering sensor. Have the vehicle inspected by your Lexus
dealer.
 Guide lines are not displayed
The back door is open. Close the back door.
If this does not resolve the symptom, have
the vehicle inspected by your Lexus
dealer.
 The estimated course lines are not displayed
• The steering wheel has been moved
while the battery was being reinstalled.
• Battery power is low.
• The steering sensor has been rein-
stalled.
• There is a malfunction in the signals
being output by the steering sensor. Stop the vehicle, and turn the steering
wheel as far as it will go to the left and
right.
If this does not resolve the symptom, have
the vehicle inspected by your Lexus
dealer.Likely cause Solution

384
RX350/RX350L_U 4-6. Driving tips
●
Use fluids that are appropriate to the prevailing outside temperatures.
•Engine oil
• Engine coolant
• Washer fluid ●
Have a service technician inspect the condition of the battery. ●
Have the vehicle fitted with four snow tires or purchase a set of tire chains for
the front tires. Ensure that all tires are of the specified size and the same brand, and that chains
match the size of the tires.
Perform the following according to the driving conditions: ●
Do not try to forcibly open a window or move a wiper that is frozen. Pour
warm water over the frozen area to me lt the ice. Wipe away the water imme-
diately to prevent it from freezing. ●
To ensure proper operation of the c limate control system fan, remove any
snow that has accumulated on the air inlet vents in front of the windshield. ●
Check for and remove any excess ice or snow that may have accumulated on
the exterior lights, vehicle’s roof, chassi s, around the tires or on the brakes.●
Remove any snow or mud from the bottom of your shoes before getting in the
vehicle.Winter driving tips Carry out the necessary preparations an d inspections before driving the vehi-
cle in winter. Always drive the vehicle in a manner appropriate to the prevail-
ing weather conditions.
Pre-winter preparations
Before driving the vehicle

3995-1. Basic Operations
5
Lexus Display Audio system
RX350/RX350L_U ■
When using the screen ●
Under extremely cold conditions, the Lexus Display Audio controller may react slowly.●
If the screen is cold, the display may be da rk, or the system may seem to be operating
slightly slower than normal. ●
The screen may seem dark and hard to see when viewed through sunglasses. Change
your angle of viewing, adjust the display on the “Display” screen (  P. 411) or remove
your sunglasses. ■
Using cellular phones
Interference may be heard through the audi o system’s speakers if a cellular phone is
being used inside or close to the vehicle while the audio system is operating.
WARNING ■
Using the Lexus Display Audio controller
Be careful when touching the Lexus Display Audio controller in extreme temperatures
as it may become very hot or cold due to the temperature inside the vehicle. ■
Laser product ●
CAUTION
USE OF CONTROL OR ADJUSTMENT OR PERFORMANCE OF PROCE-
DURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARD-
OUS RADIATION EXPOSURE. ●
CAUTION
THE USE OF OPTICAL INSTRUMENTS WITH THIS PRODUCT WILL
INCREASE EYE HAZARD.
NOTICE ■
To prevent Lexus Display Au dio controller malfunction●
Do not allow the Lexus Display Audio controll er to come into contact with food, liq-
uid, stickers or lit cigarettes as doing so may cause it to change color, emit a strange
odor or stop functioning. ●
Do not subject the Lexus Display Audio cont roller to excessive pressure or strong
impact as the controller may bend or break off.■
To prevent battery discharge
Do not leave the audio system on longer than necessary when the engine is off. ■
To avoid damaging the audio system
Take care not to spill drinks or other fluids on the audio system.

4355-6. Using an external device
5
Lexus Display Audio system
RX350/RX350L_U ■
iPod cover art ●
Depending on the iPod and songs in the iPod, iPod cover art may be displayed.●
This function can be changed to on/off. (  P. 416)●
It may take time to display iPod cover art, and the iPod may not be operated while the
cover art display is in process. ■
iPod functions ●
When an iPod is connected and the audio sour ce is changed to iPod mode, the iPod will
resume play from the same poin t in which it was last used.●
Depending on the iPod that is connected to the system, certain functions may not be
available. If a function is unavailable due to a malfunction (as opposed to a system spec-
ification), disconnecting th e device and reconnecting it may resolve the problem.●
Depending on the iPod, while connected to the system, the iPod cannot be operated
with its own controls. It is necessary to us e the controls of the vehicle’s audio system
instead. ●
When the battery level of an iP od is very low, the iPod may not operate. If so, charge the
iPod before use. ●
Compatible models (  P. 437)■
iPod problems
To resolve most problems encountered when using your iPod, disconnect your iPod from
the vehicle iPod connection and reset it. For in structions on how to reset your iPod, refer
to your iPod Owner’s Manual.

455
5
Lexus Display Audio system
RX350/RX350L_U 5-9. Bluetooth ®
Phone
Before making a phone call, check the connection status, battery charge, call
area and signal strength. ( 
P. 456)
If a Bluetooth ®
device cannot be connected, chec k the connection status. If the
device is not connected, either register or reconnect it. ( 
P. 445, 448)
To display the screen shown below, press the off-hook switch on the steering
wheel or select “Phone” on the “Menu” screen.
Phone name
Bluetooth ®
connection status
(  P. 456)
Displays the call history screen
(  P. 459)
Displays the favorites screen
(  P. 459)
Displays the contacts screen
(  P. 457)
Displays the dial pad screen (  P. 457)
Displays the message inbox screen (  P. 463)Using a Bluetooth ®
PhoneThe hands-free system is a function that allows you to use your cellular phone
without touching it.
This system supports Bluetooth ®
. Bluetooth ®
is a wireless data system that
allows the cellular phone to wirelessly connect to the hands-free system and
make/receive calls.
Phone top screen 1
2
3
4
5
6
7

456 5-9. Bluetooth ®
Phone
RX350/RX350L_U ◆ Phone switch (  P. 465)
◆ Microphone
The vehicle’s built-in microphone is
used when talking on the phone.
The person to whom you are speak-
ing to can be heard from the front
speakers.
To use the hands-free system, you
must register your Bluetooth ®
phone in the system. (  P. 445)
You can check indicators such as signal strength and battery charge on any
screen.
Connection status
Signal strength
Battery charge Type A
Type B
Status display 1
2
3
Indicators Conditions
Connection status Good Poor Not connected
(Blue) (Gray)
Signal strength Excellent Poor
Battery charge Full Empty

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 clos e 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.

476 5-11. Bluetooth ®
RX350/RX350L_U ■
When using the Bluetooth ®
audio system●
In the following situations, the system may not function.
• If the portable audio player is turned off
• If the portable audio player is not connected
• If the portable audio player’s battery is low ●
There may be a delay if a cellular phon e connection is made during Bluetooth ®
audio
play. ●
Depending on the type of portable audio play er that is connected to the system, opera-
tion may differ slight ly and certain functions may not be available.■
When using the hands-free system ●
The audio system is mu ted when making a call.●
If both parties speak at the same time, it may be difficult to hear.●
If the received call volume is over ly loud, an echo may be heard.
If the Bluetooth ®
phone is too close to the system, quality of the sound may deteriorate
and connection status may deteriorate. ●
In the following situations, it may be difficult to hear the other party:
• When driving on unpaved roads
• When driving at high speeds
• If a window is open
• If the air conditioning is blow ing directly on the microphone
• If there is interference from the network of the cellular phone●
Depending on the type phone, certain functions may not be available. ■
Conditions under which th e system will not operate●
If using a cellular phone that does not support Bluetooth ®
●
If the cellular phone is turned off ●
If you are outside of cellular phone service coverage ●
If the cellular phone is not connected ●
If the cellular phone’s battery is low ●
When outgoing calls are controlled, due to heavy traffic on phone lines, etc. ●
When the cellular phone itself cannot be used ●
When transferring phonebook da ta from the cellular phoneBluetooth ®