
666 8-2. Steps to take in an emergency
RX350_U_OM48E90U Connect the clamp at the other end of the negative cable to a solid, station-
ary, unpainted metallic point away from the battery and any moving parts,
as shown in the illustration.
Start the engine of the second vehicle. Increase the engine speed slightly and
maintain at that level for approximately 5 minutes to recharge the battery of
your vehicle.
Open and close any of the doors of your vehicle with the engine switch off.
Maintain the engine speed of the second vehicle and start the engine of your
vehicle by turning the engine switch to IGNITION ON mode.
Once the vehicle’s engine has started, remove the jumper cables in the exact
reverse order from which they were connected.
Once the engine starts, have the vehicle inspected at your Lexus dealer as soon
as possible. ■
Starting the engine when the battery is discharged
The engine cannot be started by push-starting. ■
To prevent battery discharge ●
Turn off the headlights and the audio system while the engine is off. ●
Turn off any unnecessary electrical components when the vehicle is running at a low
speed for an extended period, such as in heavy traffic. ■
Charging the battery
The electricity stored in the battery will discharge gradually even when the vehicle is not
in use, due to natural discharg e and the draining effects of certain electrical appliances. If
the vehicle is left for a long time, the battery may discharge, and the engine may be
unable to start. (The battery recharges automatically during driving.) ■
When the battery is removed or discharged ●
In some cases, it may not be possible to unlock the doors using the smart access system
with push-button start when the battery is discharged. Use the wireless remote control
or the mechanical key to lock or unlock the doors. ●
The engine may not start on the first attempt after the battery has recharged but will
start normally after the second attempt. This is not a malfunction. ●
The engine switch mode is memorized by the vehicle. When the battery is recon-
nected, the system will return to the mode it was in before the battery was discharged.
Before disconnecting the battery, turn the engine switch off.
If you are unsure what mode the engine switch was in before the battery discharged, be
especially careful when reconnecting the battery. ●
The power back door must be initialized. ( P. 1 3 8 )4
4
5
6
7

699
RX350_U_OM48E90U 9
Vehicle specifications 9-2. Customization
When customizing vehicle features, ensure that the vehicle is parked in a safe
place with the shift lever in P and the parking brake set. ■
Changing on the audio system screen
Vehicles with a navigation system
Press the “MENU” button on the Remote Touch.
Select on the “Menu” screen and select .
Various setting can be changed. Refer to the list of settings that can be
changed for details.
Vehicles with a Lexus Display Audio system
Press the “MENU” button on the Lexus Display Audio controller.
Select “Setup” on the “Menu” screen and select “Vehicle”.
Various setting can be changed. Refer to the list of settings that can be
changed for details. ■
Changing using the multi-information display
P. 9 6Customizable features Your vehicle includes a variety of electronic features that can be personalized
to suit your preferences. The settings of these features can be changed using
the multi-information display, on the audio system screen, or at your Lexus
dealer.
Customizing vehicle features 1
2
1
2

700 9-2. Customization
RX350_U_OM48E90U Some function settings are changed simultaneously with other functions being
customized. Contact your Lexus dealer for further details.
Settings that can be changed on the audio system screen
Settings that can be changed by your Lexus dealer
Definition of symbols: O = Available, – =Not available ■
Gauges, meters and multi-information display ( P. 8 5 , 8 9 )
* 1
: The default setting varies according to countries.
* 2
:Except F SPORT modelsCustomizable Features 1
2
Function Default setting Customized setting
Language English French
O—
Spanish
Units
* 1
miles (MPG US) miles
(MPG Imperial)
O —
km (L/100 km)
km (km/ L)
Color
* 2
Color 1 Color 2
O —
Suggestion function On Off — O 1 2

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

727
Index
RX350_U_OM48E90U What to do if...
(Troubleshooting)................................ 728
Alphabetical index................................. 732
For vehicles with a navigation system, refer to the “NAVIGATION
SYSTEM OWNER’S MANUAL” for information regarding the equip-
ment listed below.
• Navigation system
• Audio/visual system
• Rear seat entertainment sys-
tem •Panoramic view monitor
•Lexus Enform

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”.

739Alphabetical index
RX350_U_OM48E90U Keyless entry
Smart access system with
push-button start ............................. 146
Wireless remote control .......120, 130
Keys............................................................. 120
Battery-saving function .................... 148
Electronic key ....................................... 120
Engine switch .......................................220
If the electronic key does not
operate properly.............................. 661
Key number plate ............................... 120
Keyless entry ......................................... 120
Mechanical key ...................................... 121
Replacing the battery ...................... 603
Warning buzzer .................................. 125
Wireless remote control ................. 120
Knee airbags ............................................. 36
Lane Departure Alert
with steering control (LDA).......... 293
Lane-Keeping Assist (LKA)............. 283
Language (multi-information
display)...................................................... 101
LATCH anchors ...................................... 69
LDA (Lane Departure Alert
with steering control) ...................... 293
Lever
Auxiliary catch lever ......................... 572
Hood lock release lever ................. 572
Shift lever .................................... 225, 229
Turn signal lever ................................. 234
Wiper lever .............................. 250, 256
Lexus Climate Concierge ................ 494 Lexus Display Audio controller ..... 392
Lexus Enform
* Lexus Enform Remote
* .................... 552
LEXUS Enform Safety
Connect.................................................547
LEXUS Enform Service
Connect
* ............................................. 554
Lexus parking assist monitor ........... 339
Display..................................................... 340
Precautions ........................................... 346
Lexus Safety System+ .........................262
Automatic High Beam.................... 245
Dynamic radar cruise control ....... 314
Dynamic radar cruise control
with full-speed range ................... 302
LDA (Lane Departure Alert
with steering control) ................... 293
LKA (Lane-Keeping Assist)......... 283
PCS (Pre-Collision System) ....... 270
License plate lights
Light switch............................................. 241
Replacing light bulbs ........................ 610
Light
Automatic High Beam.................... 245
Cornering lights ................................. 242
Fog light switch ................................... 249
Headlight switch .................................. 241
Illuminated entry system.................... 511
Interior light list ................................... 508
Interior lights ....................................... 509
Luggage compartment light ..........136
Personal lights ...................................... 510
Replacing light bulbs ........................ 610
Turn signal lever ................................. 234
Vanity lights .......................................... 523K
L
* : Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.

744 Alphabetical index
RX350_U_OM48E90U Spark plug ............................................... 678
Specifications ......................................... 674
Speedometer ............................................ 85
Sport mode ............................................. 369
Steering wheel .........................................169
Adjustment ............................................. 169
Audio switches ................................... 396
Heated steering wheel ................... 506
Power easy access system ............ 162
Telephone switches ......................... 460
Stop lights
Replacing light bulbs ......................... 610
Storage feature .......................................512
Storage precautions..............................512
Stuck
If the vehicle becomes stuck ..........671
Sun visors ................................................. 523
Sunshade
Panoramic moon roof ...................... 185
Rear door...............................................534
Roof............................................................ 182 Switches
All-wheel drive lock switch .......... 373
Audio remote control
switches .............................................. 396
Automatic High Beam switch ..... 245
Brake hold switch.............................. 239
Cruise control
switch ............................ 302, 314, 326
Door lock switch.................................. 126
Driving mode select switch .......... 369
Driving position memory
switches ................................................ 162
Electronic sunshade switch ........... 185
Emergency flashers switch ........... 624
Engine switch ...................................... 220
Fog light switch ................................... 249
Garage door opener
switches .............................................. 536
Heated steering wheel switch.... 506
HUD (Head-up display)
switches ................................................107
Ignition switch...................................... 220
LDA (Lane Departure Alert)
switch ................................................... 296
Light switch............................................. 241
LKA (Lane-Keeping Assist)
switch ................................................... 287
Meter control switches ........................ 91
Moon roof switches ............................ 181
“ODO/TRIP” switch........................... 92