Page 546 of 748
546 6-5. Using the other interior features
RX350_U_OM48E90U WA R N I N G ■
While driving the vehicle
Do not adjust the display. Adjust the di splay only when the vehicle is stopped.■
When doing the circling calibration
Secure a wide space, and watch out for people and vehicles in the vicinity. Do not vio-
late any local traffic rules while performing circling calibration.
NOTICE ■
To avoid compass malfunctions
Do not place magnets or any metal objects near the inside rear view mirror.
Doing this may cause the compass sensor to malfunction. ■
To ensure normal operation of the compass ●
Do not perform a circling calibration of the compass in a place where the earth’s
magnetic field is subject to interfer ence by artificial magnetic fields.●
During calibration, do not operate elec tric systems (moon roof, panoramic moon
roof, power windows, etc.) as they may interfere with the calibration.
Page 558 of 748

558 7-1. Maintenance and care
RX350_U_OM48E90U WA R N I N G ■
When washing the vehicle
Do not apply water to the inside of the en gine compartment. Doing so may cause the
electrical components etc. to catch fire. ■
When cleaning the windshield (vehicles with rain-sensing windshield wipers)
●
When the upper part of the windshield where the raindrop sensor is located is
touched by hand ●
When a wet rag or similar is held close to the raindrop sensor ●
If something bumps against the windshield ●
If you directly touch the raindrop sensor body or if something bumps into the raindrop
sensor ■
Precautions regarding the exhaust pipes and rear bumper diffusers
Exhaust gasses cause the exhaust pipes and rear bumper diffusers to become quite
hot.
When washing the vehicle, be careful not to touch the pipes and diffusers until they
have cooled sufficiently, as touching hot exhaust pipes and rear bumper diffusers can
cause burns. ■
Precautions regarding the rear bumper with Blind Spot Monitor (if equipped)
If the paint of the rear bumper is chipped or scratched, the syst em may malfunction. If
this occurs, consult your Lexus dealer.Set the wiper switch to off.
If the wiper switch is in “A U T O ” , t h e w i p e r s m a y
operate unexpectedly in the following situa-
tions, and may result in hands being caught or
other serious injuries and cause damage to the
wiper blades.
Off
Page 636 of 748

636 8-2. Steps to take in an emergency
RX350_U_OM48E90U (If equipped)
PCS warning light
When the warning light flashes (and a buzzer sounds):
Indicates a malfunction in the PCS (Pre-Collision System)
Have the vehicle inspected by your Lexus dealer immediately.
When the warning light flashes (and a buzzer does not sound):
Indicates that the PCS (Pre-Collision System) is temporarily
unavailable, possibly due to either of the following:
• An area around the radar sensor or camera sensor being dirty,
fogged up or covered with co ndensation, ice, stickers, etc.
Clear the dirt, fog, condensation, ice, stickers, etc.
( P. 2 6 5 , 2 6 6 )
• Radar sensor or camera sensor temperature being outside of its
operational range
Wait for a while until the area around the front sensor has cooled
down sufficiently.
When the warning ligh t is illuminated:
Either the VSC (Vehicle Stability Control) system or PCS (Pre-
Collision System) is disabled or both are disabled.
To enable the PCS, enable both the VSC system and PCS.
( P. 2 74 , 3 7 7 )
Low fuel level warning light
Indicates that remaining fuel is approximately 2.8 gal. (10.8 L,
2.3 Imp. gal.) or less
Refuel the vehicle.
Seat belt reminder light (warning buzzer)
*Warns the driver and/or front passenger to fasten their seat belts
Fasten the seat belt.
If the front passenger’s seat is occupied, the front passenger’s
seat belt also needs to be fa stened to make the warning light
(warning buzzer) turn off.
Tire pressure warning light
Indicates the following:
• Low tire pressure due to flat tire;
• Low tire pressure due to natural causes; or
• The tire pressure warning system is malfunctioning
Immediately stop the vehicle in a safe place.
Handling method ( P. 6 3 8 )
Master warning light
A buzzer sounds and the warning light comes on and flashes to
indicate that the master warning system has detected a malfunc-
tion.
P. 6 4 1Warning light Warning light/Details/Actions
Page 637 of 748

6378-2. Steps to take in an emergency
8
When trouble arises
RX350_U_OM48E90U * : Driver's and front passenger' s seat belt warning buzzer:
The driver’s seat belt warning buzzer sounds to alert the driver that his or her seat belt
is not fastened. Once the engine switch is turned to IGNITION ON mode, the
buzzer sounds for 6 seconds. If the vehicl e reaches a speed of 12 mph (20 km/h), the
buzzer sounds once. If the seat belt is still unfastened afte r 24 seconds, the buzzer will
sound intermittently for 10 seconds. Then, if the seat belt is still unfastened, the buzzer
will sound in a different tone for 20 more seconds.
The front passenger’s seat belt warning buzzer sounds to alert the front passenger
that his or her seat belt is not fastened. The buzzer sounds once if the vehicle reaches
a speed of 12 mph (20 km/h). If the seat belt is still unfastened after 24 seconds, the
buzzer will sound intermittently for 10 seconds. Then, if the seat belt is still unfastened,
the buzzer will sound in a different tone for 20 more seconds. ■
SRS warning light
This warning light system monitors the airbag sensor assembly, front impact sensors, side
impact sensors (front door), side impact se nsors (rear), driver’s seat position sensor,
driver’s seat belt buckle swit ch, front passenger occupant classification system (ECU and
sensors), “AIR BAG ON” indicator light, “A IR BAG OFF” indicator light, front passen-
ger’s seat belt buckle switch, driver’s seat belt pretensioner, front passenger’s seat belt
pretensioner and force limiter, airbags, in terconnecting wiring and power sources.
( P. 3 6 ) ■
Front passenger detection sensor, seat belt reminder and warning buzzer●
If luggage is placed on the front passenger seat, the front passenger detection sensor
may cause the warning light to flash and the warning buzzer to sound even if a passen-
ger is not sittin g in the seat.●
If a cushion is placed on th e seat, the sensor may not detect a passenger, and the warn-
ing light may not operate properly. ■
Electric power steering system warning light (warning buzzer)
When the battery charge becomes insufficie nt of the voltage te mporarily drops, the
electric power steering system warning light may come on and the warning buzzer may
sound. ■
If the malfunction indicator lamp comes on while driving
First check the following: ●
Is the fuel tank empty?
If it is, fill the fuel tank immediately. ●
Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving trips.
If the light does not go off even after severa l trips, contact your Lexus dealer as soon as
possible.
Page 702 of 748
702 9-2. Customization
RX350_U_OM48E90U ■
Power back door ( P. 1 3 0 )
* :If equipped Function Default setting Customized setting
Power back door switch opera-
tion Press for 1 second One short press — O
Automatic closing of the back
door when lowered On Off — O
Automatic opening of the back
door using the back door opener
switch On Off — O
Power back door opening posi-
tion 5 1 to 5 O O
Buzzer volume Level 3 Level 1
— O
Level 2
Power back door/touchless sen-
sor
* On Power back door:
On
Touchless sensor:
Off — O
Off
Power back door open/close
buzzer When the back
door begins to
operate: On
While the back
door is operating:
Off Off
— OWhen the back
door begins to
operate: Off
While the back
door is operating:
On
On
Sound pattern of the buzzer
when the power back door
begins to operate Sound pattern A Sound pattern B
— O
Sound pattern C
Touchless sensor
* sensitivity Level 1 (standard) Level 1 (standard) to
level 3 (highest) — O 1 2
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 708 of 748
708 9-2. Customization
RX350_U_OM48E90U ■
Intuitive parking assist
* 1
( P. 3 3 0 )
* 1
:If equipped
* 2
: When intuitive parking assist is operating.■
BSM (Blind Spot Monitor)
* ( P. 3 5 5 )
* : If equipped Function Default setting Customized setting
Detection distance of the front
center sensor Far Near O O
Detection distance of the rear
center sensor Far Near O O
Buzzer volume 3 1 to 5 O O
Display setting
* 2
All sensors dis-
played Display off O O 1 2
Function Default setting Customized setting
Outside rear view mirror indica-
tor brightness Bright Dim O O
Alert timing for presence of
approaching vehicle (BSM func-
tion only) Intermediate Early
O OLate
Only when in blind
spot
RCTA buzzer volume Level 2 Level 1
O —
Level 3 1 2
Page 709 of 748
7099-2. Customization
9
Vehicle specifications
RX350_U_OM48E90U ■
Driving mode select switch ( P. 3 6 9 )
* :If equipped ■
Automatic air conditioning system ( P. 4 9 5 )
* : If equipped■
Seat heaters
* /seat ventilators
* ( P. 506, 507)
* : If equipped Function Default setting Customized setting
Powertrain control in customized
mode
* Normal Po w e r
O —
Eco
Chassis control in customized
mode
* Normal Sport O —
Air conditioning operation in
customized mode
* Normal Eco O — 1 2
Function Default setting Customized setting
A/C auto switch operation On Off O O
Exhaust gas sensor sensitivity
* Standard -3 to 3 O O 1 2
Function Default setting Customized setting
Driver’s seat temperature prefer-
ence in automatic mode Standard -2 (cooler) to 2
(warmer) O O
Front passenger’s seat tempera-
ture preference in automatic
mode Standard -2 (cooler) to 2
(warmer) O O 1 2