
696 9-1. Specifications
RX350_U_OM48E90U Intended outboard sidewall (a) The sidewall that contains a whitewall, bears white
lettering, or bears manu facturer, brand, and/or
model name molding that is higher or deeper than
the same molding on the other sidewall of the tire, or
(b) The outward facing sidewall of an asymmetrical tire
that has a particular side that must always face out-
ward when mounted on a vehicle
Light truck (LT) tire A tire designated by its manufacturer as primarily
intended for use on lightweight trucks or multipurpose
passenger vehicles
Load rating The maximum load that a tire is rated to carry for a given
inflation pressure
Maximum load rating The load rating for a tire at the maximum permissible
inflation pressure for that tire
Maximum permissible infla-
tion pressure The maximum cold inflation pressure to which a tire may
be inflated
Measuring rim The rim on which a tire is fitted for physical dimension
requirements
Open splice Any parting at any junction of tread, sidewall, or inner-
liner that extends to cord material
Outer diameter The overall diameter of an inflated new tire
Overall width The linear distance between the exteriors of the side-
walls of an inflated tire, incl uding elevations due to label-
ing, decorations, or pr otective bands or ribs
Passenger car tire A tire intended for use on passenger cars, multipurpose
passenger vehicles, and trucks, that have a gross vehicle
weight rating (GVWR) of 10,000 lb. or less.
Ply A layer of rubber-coated parallel cords
Ply separation A parting of rubber compou nd between adjacent pliesTire related term Meaning

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

710 9-2. Customization
RX350_U_OM48E90U ■
Illumination ( P. 5 0 8 )
* : If equipped Function Default setting Customized setting
Time elapsed before the interior
lights turn off 15 seconds Off
O O7. 5 s e c o n d s
30 seconds
Operation after the engine
switch is turned off On Off — O
Operation when the doors are
unlocked On Off — O
Operation when you approach
the vehicle with the electronic
key on your person On Off — O
Footwell lights and front center
console light On Off — O
Instrument panel ornament
light
* and door trim ornament
lights
* On Off — O
Time elapsed before the outer
foot lights turn off 15 seconds Off
O O7. 5 s e c o n d s
30 seconds
Operation of the outer foot lights
when you approach the vehicle
with the electronic key on your
person On Off — O
Operation of the outer foot lights
when the doors are unlocked
with the power door lock switch On Off — O
Operation of the outer foot lights
when a door is opened On Off — O
Fading out of the outer foot lights
when they turn off Long Short — O 1 2

713
10 For owners
RX350_U_OM48E90U Reporting safety defects
for U.S. owners .......................................714
Seat belt instructions
for Canadian owners
(in French) ................................................715
SRS airbag instructions
for Canadian owners
(in French) ................................................716
Headlight aim instructions
for Canadian owners
(in French) ...............................................724

724
RX350_U_OM48E90U Boulon de réglage A
Boulon de réglage B
Vérifiez que le réservoir de carburant du véhicule est plein et que la zone
autour des phares n'est pas déformée.
Stationnez le véhicule sur une surface plane.
Installez-vous dans le siège conducteur.
Balancez le véhicule plusieurs fois.Headlight aim instructions for Canadian owners (in
French) (vehicles with single-beam headlights) The following is a French explanation of headlight aim instructions from the
headlight aim section in this manual.
Boulons de réglage du mouvement vertical 1
2
Avant de vérifier le réglage des phares 1
2
3
4

730 What to do if... (Troubleshooting)
RX350_U_OM48E90U ●
The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? ( P. 636)●
The parking brake indicator is on
Is the parking brake released? ( P. 2 3 5 )
Depending on the situation, other type s of warning buzzer may also sound.
( P. 6 3 4 , 6 4 1 ) ●
Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( P. 76 )
Do one of the following to stop the alarms: • Unlock the doors.
• Turn the engine switch to ACCESSORY or IGNITION ON mode, or start the
engine.
●
Is the message displayed on the multi-information display?
Check the message on the multi-information display. ( P. 6 4 1 )
●
When a warning light turns on or a warning message is displayed, refer to
P. 6 3 4 , 6 4 1 . A warning buzzer sounds during driving
An alarm is activated and the horn sounds
A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed

732
RX350_U_OM48E90U Alphabetical index
Alphabetical index A/C ............................................................ 495
Air conditioning filter....................... 598
Automatic air conditioning
system ................................................. 495
S-FLOW mode ................................. 496
ABS (Anti-lock Brake System)....... 374
Warning light .......................................634
Adaptive Front-lighting System
(AFS) ...................................................... 242
Adaptive Variable Suspension
System ................................................... 375
AFS (Adaptive Front-lighting
System) .................................................. 242
Air conditioning filter ..........................598
Air conditioning system ..................... 495
Air conditioning filter....................... 598
Automatic air conditioning
system ................................................. 495
S-FLOW mode ................................. 496
Airbags ........................................................ 36
Airbag operating conditions ........... 44
Airbag precautions for your
child .......................................................... 39
Airbag warning light .........................634
Correct driving posture .................... 28
Curtain shield airbag
operating conditions........................ 44
Curtain shield airbag
precautions ........................................... 42 Front passenger occupant
classification system......................... 49
General airbag precautions ........... 39
Locations of airbags............................ 36
Modification and disposal of
airbags .................................................... 43
Seat cushion airbag ............................. 36
Side airbag operating
conditions ............................................. 44
Side airbag precautions .................... 39
Side and curtain shield airbags
operating conditions ....................... 44
Side and curtain shield airbags
precautions .......................................... 39
SRS airbag instructions for
Canadian owners ............................ 716
SRS airbags ............................................. 36
Alarm ............................................................ 76
All-wheel drive lock mode ................373
Anchor brackets...................................... 59
Antenna
Radio ..........................................................419
Smart access system
with push-button start....................146
Anti-lock Brake System (ABS) .......374
Warning light ....................................... 634
Approach warning .................... 309, 321
Armrest .................................................... 534
Assist grips .............................................. 535A

733Alphabetical index
RX350_U_OM48E90U Audio system (with Lexus
Display Audio System) ................... 390
Antenna ................................................... 419
Audio input........................................... 399
AUX port.............................................. 399
Bluetooth ®
audio ............................. 448
CD player .............................................. 422
iPod ...........................................................429
MP3/WMA disc ............................... 422
Optimal use ......................................... 409
Portable music player ...................... 437
Radio ......................................................... 416
Setup menu ...........................................402
Steering wheel audio
switches .............................................. 396
USB memory .......................................433
Audio system
(with navigation system)
*Automatic air conditioning
system .................................................... 495
Air conditioning filter....................... 598
S-FLOW mode ................................. 496
Automatic headlight leveling
system .................................................... 243
Automatic High Beam ....................... 245
Automatic light control system.........241
Automatic transmission .......... 225, 229
If the shift lever cannot be
shifted from P .................................. 660
M mode ....................................................231
Paddle shift switches ............. 230, 231
S mode .................................................... 226
AUX port................................................. 399
Auxiliary boxes ..............................517, 521 Back door
Power back door ............................... 130
Touchless power back door.......... 132
Wireless remote control................. 130
Back-up lights
Replacing light bulbs ........................ 610
Wattage ................................................. 682
Battery
Battery checking ................................. 581
If the battery is discharged............665
Preparing and checking before
winter................................................... 380
Warning light ....................................... 634
Blind Spot Monitor (BSM) ............... 355
Blind Spot Monitor function.........359
Rear Cross Traffic
Alert function.................................... 363
Bluetooth ®
............................................... 471
Audio system ....................................... 448
Hands-free system
(for cellular phone) .......................450
Bottle holders .......................................... 515
Brake
Brake Hold ........................................... 239
Fluid ......................................................... 680
Parking brake ...................................... 235
Warning light ....................................... 634
Brake assist ..............................................374
Brake Hold.............................................. 239
Warning light .......................................635
Break-in tips ............................................. 194
Brightness control
Instrument panel light control ........ 87 B
* : Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.