Page 506 of 748
506 6-2. Using the air conditio ning system and defogger
RX350_U_OM48E90U Turns the heated steering wheel on/off The indicator light comes on when the
heated steering wheel is operating. ■
Operation condition
The heated steering wheel can be used when the engine switch is in IGNITION ON
mode. ■
Timer
The heated steering wheel will automati cally turn off after about 30 minutes.
When any switch is pressed, the system is set to automatic mode and the
“AUTO” indicator (green) lights up.
Each time the switch is pressed, the
operation condition changes as follows.
Hi (3 segments lit) Mid (2 segments
lit) Lo (1 segment lit) OffThe level indicator (amber) lights up
during operation.
■
Operation condition
The front seat heaters can be used when th e engine switch is in IGNITION ON mode.■
Customization
Some functions can be customized. ( P. 6 9 9 )Heated steering wheel
Front seat heaters
Level
indicator“A U T O ”
indicator
Page 507 of 748
5076-2. Using the air conditioning system and defogger
6
Interior features
RX350_U_OM48E90U Each time the switch is pressed, the
operation condition changes as follows.
Hi (3 segments lit) Mid (2 segments
lit) Lo (1 segment lit) OffThe level indicator (amber) lights up
during operation.
■
Operation condition
The rear seat heaters can be used wh en the engine switch is in IGNITION
ON mode.
When any switch is pressed, the system
is set to automatic mode and the
“AUTO” indicator (green) lights up.
Each time the switch is pressed, the
operation condition changes as follows.
Hi (3 segments lit) Mid (2 segments
lit) Lo (1 segment lit) OffThe level indicator (g reen) lights up dur-
ing operation. ■
Operation condition
The seat ventilators can be used when the engine switch is in IGNITION ON mode.■
Customization
Some functions can be customized. ( P. 6 9 9 )Rear seat heaters Level indicator
Seat ventilators Level
indicator“A U T O ”
indicator
Page 527 of 748

5276-5. Using the other interior features
6
Interior features
RX350_U_OM48E90U ■
If a cover or accessory is attached to the portable device
Do not charge a portable device if a cover or accessory which is not Qi compatible is
attached. Depending on the type of cover and/or accessory attached, it may not be pos-
sible to charge the portable device. If the portable device is placed on the charging area
and does not charge, remove the cover and/or accessories. ■
If interference is heard in AM radio broadcasts while charging
Turn off the wireless charger and check if the noise is reduced. If noise is reduced, press
and hold the power supply switch of the wire less charger for 2 seconds. The frequency of
the wireless charger is changed and noise may be reduced. When the frequency is
changed, the operation indicator light will blink (orange) 2 times.■
Charging precautions ●
If the electronic key cannot be detected in the cabin, charging cannot be performed.
When a door is opened and closed, ch arging may be temporarily suspended.●
While charging, the wireless charger and the portable device will become warm. This is
not a malfunction.
If a portable device becomes warm while ch arging and charging stops due to the pro-
tection function of the portable device, wait until the portable device cools down and
charge it again. ■
Sound generated du ring operation
When the power supply switch is turned on or while a portable device is being identified,
operation sounds may be heard. This is not a malfunction. ■
Cleaning the wireless charger
P. 5 6 2 ■
Certification for the wireless charger
FCC Note: This equipment has been tested and found to comply with Part 18 of the FCC
Rules. These limits are designed to provide reasonable protection against harmful inter-
ference in a residential installation.
FCC Caution: Any changes or modification s not expressly approved by the party
responsible for compliance could void the user’s authority to operate this equipment.
Page 590 of 748

590 7-3. Do-it-yourself maintenance
RX350_U_OM48E90U ■
Warning performance of the tire pressure warning system
The warning of the tire pressure warning syst em will change in accordance with the con-
ditions under which it was initialized. For this reason, the system may give a warning even
if the tire pressure does not reach a low enough level, or if the pressure is higher than the
pressure that was adjusted to when the system was initialized. ■
When initialization of the tire pressure warning system has failed
Initialization may take longer to complete if the vehicle is driven on an unpaved road.
When performing initialization, drive on a pa ved road if possible. Depending on the driv-
ing environment and condition of the tires, initialization will be completed in approxi-
mately 10 to 30 minutes. If initialization is not complete af ter driving approximately 10 to
30 minutes, continue driving for a while.
If the inflation pressure of each tire is not displayed after driving for approximately 1 hour,
perform the following procedure. ●
Park the vehicle in a safe place for approxim ately 20 minutes. Then drive straight (with
occasional left and right turns) at approximately 25 mph (40 km/h) or more for
approximately 10 to 30 minutes.
However, in the following situations, the tire inflation pressure will not be recorded and
the system will not operate properly. Perform initialization again. ●
When operating the tire pressure warning reset switch, the tire pressure warning light
does not blink 3 times. ●
After performing initialization, the tire pres sure warning light blinks for 1 minute then
stays on while driving.
If the inflation pressure of each tire is st ill not displayed, have the vehicle inspected by
your Lexus dealer.
Page 664 of 748

664 8-2. Steps to take in an emergency
RX350_U_OM48E90U ■
Stopping the engine
Shift the shift lever to P, set the parking br ake, and press the engine switch as you nor-
mally do when stop ping the engine.■
Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the electronic
key battery be replaced immediately when the battery is depleted. ( P. 6 0 3 )■
Changing engine switch modes
Release the brake pedal and press the engine switch in step above.
The engine does not start and modes will be changed each time the switch is pressed.
( P. 221) ■
When the electronic key does not work properly ●
Make sure that the smart access system wi th push-button start has not been deacti-
vated in the custom ization setting. If it is off, turn the function on.
(Customizable features P. 699)●
Check if battery-saving mo de is set. If it is se t, cancel the function. ( P. 1 4 8 )
WA R N I N G ■
When using the mechanical key and operating the power windows or the moon roof
or panoramic moon roof
Operate the power window or the moon roof or panoramic moon roof after checking
to make sure that there is no possibility of any passenger ha ving any of their body parts
caught in the window or the moon roof or panoramic moon roof.
Also, do not allow children to operate the mech anical key. It is possible for children and
other passengers to get caught in the powe r window or the moon roof or panoramic
moon roof. 3
Page 707 of 748

7079-2. Customization
9
Vehicle specifications
RX350_U_OM48E90U ■
Tu r n s i g n a l l e v e r ( P. 2 3 4 )
■
Automatic light control system ( P. 2 4 1 )
■
Lights (
P. 2 4 1 )
* 1
: Except for Canada
* 2
: If equipped■
Rain-sensing windshield wipers
* (
P. 2 5 0 )
* : If equipped Function Default setting Customized setting
The number of times the turn sig-
nal lights flash automatically
when the turn signal lever is
moved to the first position during
a lane change 3 5
— O7
Off 1 2
Function Default setting Customized setting
Light sensor sensitivity Standard -2 to 2 O O
Time elapsed before headlights
automatically turn off after doors
are closed 30 seconds Off
OO
60 seconds
90 seconds 1 2
Function Default setting Customized setting
Daytime running lights On Off
* 1
O O
We l c o m e l i g h t i n g On Off — O
AFS (Adaptive Front-lighting
System)
* 2
On Off — O 1 2
Function Default setting Customized setting
Wiper operation when the wiper
switch is in the “AUTO” position Rain-sensing oper-
ation Intermittent opera-
tion linked to vehi-
cle speed (with
interval adjuster) — O 1 2
Page 711 of 748

7119-2. Customization
9
Vehicle specifications
RX350_U_OM48E90U ■
Seat belt reminder ( P. 636)■
Vehicle customization ●
When the smart access system with push-but ton start is off, the entry unlock function
cannot be customized. ●
When the doors remain closed after unlocking the doors and the timer activated auto-
matic door lock function activates, signals will be generated in accordance with the
operation buzzer volume and operational si gnal (Emergency flashers) function set-
tings. ●
Some settings can be changed using a switch or the audio system screen. If a setting is
changed using a switch, the changed setting will not be reflected on the audio system
screen until the engine switch is turn ed off and then to IGNITION ON mode.Function Default setting Customized setting
Vehicle speed linked seat belt
reminder buzzer On Off — O
WA R N I N G ■
Cautions during customization
As the engine needs to be running during customization, ensure that the vehicle is
parked in a place with adequate ventilation. In a closed area such as a garage, exhaust
gases including harmful carbon monoxide (CO) may collect and enter the vehicle. This
may lead to death or a serious health hazard.
NOTICE ■
During customization
To prevent battery discharge, ensure that the engine is running while customizing fea-
tures. 1 2