Page 591 of 652
5
591
5-2. Steps to take in an emergency
When trouble arises
RX350/270_EE
If the electronic key does not operate properly
Locking and unlocking the side doors and key linked functions
Use the mechanical key (→P. 2 7 )
in order to perform the following
operations (driver’s door only):
Locks all the doors
Closes the windows and moon
roof (turn and hold)
Unlocks all the doors
For some models:
An alarm will sound if the alarm is
set. (→P. 122)
Opens the windows and moon
roof (turn and hold)
If communication between the electronic key and vehicle is interrupted
(→P. 37) or the electronic key cannot be used because the battery is
depleted, the smart entry & start system and wireless remote control can-
not be used. In such cases, the doors can be opened and the engine can be
started by following the procedure below.
RX350_270_EE_48D77E.book 591 ページ 2014年1月24日 金曜日 午前10時4分
Page 593 of 652
5
593
5-2. Steps to take in an emergency
When trouble arises
RX350/270_EE
■Stopping the engine
Shift the shift lever to P and press the “ENGINE START STOP” switch as you nor-
mally do when stopping the engine.
■Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the elec-
tronic key battery be replaced immediately when the battery is depleted.
(→P. 5 0 1 )
■Alarm
Using the mechanical key to lock the doors will not set the alarm system.
If a door is unlocked using the mechanical key when the alarm system is set, the
alarm may be triggered. (→P. 1 2 2 )
■Changing “ENGINE START STOP” switch modes
Within 10 seconds of the buzzer sounding, release the brake pedal and press the
“ENGINE START STOP” switch.
The engine does not start and modes will be changed each time the switch is
pressed. (→P. 1 8 1 )
RX350_270_EE_48D77E.book 593 ページ 2014年1月24日 金曜日 午前10時4分
Page 596 of 652

596
5-2. Steps to take in an emergency
RX350/270_EE
■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.
■When the battery is removed or discharged
●The power back door must be initialized. (if equipped) (→P. 6 3 3 )
●Make sure that the key is not inside the vehicle when recharging or replacing
the battery. The key may be locked in the vehicle if the alarm is activated.
(→P. 1 2 5 )
■Charging the battery
The electricity stored in the battery will discharge gradually even when the vehi-
cle is not in use, due to natural discharge and the draining effects of certain
electrical appliances. If the vehicle is left for a long time, the battery may dis-
charge, and the engine may be unable to start. (The battery recharges automat-
ically during driving.)
Once the vehicle’s engine has started, remove the jumper
cables in the exact reverse order from which they were con-
nected.
Once the engine starts, have the vehicle inspected at any authorized
Lexus dealer or repairer, or another duly qualified and equipped pro-
fessional as soon as possible.STEP6
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Page 624 of 652
624
6-2. Customization
RX350/270_EE
Customizable Features
Vehicles with a navigation system: Settings that can be changed using
the screen of the navigation system
Vehicles with a navigation system: Settings that can be changed using
the multi-information switches
Vehicles without a navigation system: Settings that can be changed
using the multi-information switches
Settings that can be changed by authorized Lexus dealer or repairer,
or another duly qualified and equipped professional for further details
Definition of symbols: O = Available, — = Not available
ItemFunctionDefault
settingCustom-
ized
setting
Door lock
(
→P. 5 6 ,
591)
Unlocking using
a keyAll doors
unlocked
in one step
Driver's
door
unlocked
in one step,
all doors
unlocked
in two
steps
O——O
Shifting gears to
P unlocks all
doors
OffOnO—OO
Opening
driver's door
unlocks all doors
OnOffO—OO
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Page 625 of 652
625
6-2. Customization
6
Vehicle specifications
RX350/270_EE
Smart entry
& start sys-
tem and
wireless
remote con-
trol
(
→P. 3 1 , 5 3 )
Operation signal
(emergency
flashers)
OnOffO—OO
Ti m e e l a p s e d
before the auto-
matic door lock
function is acti-
vated if a door is
not opened after
being unlocked
30 sec-
onds
60 sec-
onds
O—OO
120 sec-
onds
Smart entry
& start sys-
tem
(
→P. 3 1 )
Smart door
unlockingDriver’s
doorAll the
doorsO—OO
Smart entry &
start systemOnOffO—OO
Open door
warning buzzerOnOff———O
Wireless
remote con-
trol
(
→P. 5 3 )
Unlocking oper-
ationAll doors
unlocked
in one step
Driver's
door
unlocked
in one step,
all doors
unlocked
in two
steps
O—OO
ItemFunctionDefault
settingCustom-
ized
setting
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Page 627 of 652
627
6-2. Customization
6
Vehicle specifications
RX350/270_EE
Illumination
(
→P. 4 1 7 )
Ti m e e l a p s e d
before the inte-
rior lights turn off
15 seconds
7. 5 s e c -
onds
O—OO30 sec-
onds
Ti m e e l a p s e d
before the exte-
rior lights turn off
15 seconds
7. 5 s e c -
onds
O—OO30 sec-
onds
Operation when
the doors are
unlocked
OnOff———O
Operation after
the “ENGINE
START STOP”
switch turned off
OnOff———O
Operation when
you approach
the vehicle with
the electronic
key on your per-
son
OnOff———O
ItemFunctionDefault
settingCustom-
ized
setting
RX350_270_EE_48D77E.book 627 ページ 2014年1月24日 金曜日 午前10時4分
Page 639 of 652

639
Alphabetical index
RX350/270_EE
Child safety
Airbag precautions ............................. 137
Back door precautions ...................... 66
Child restraint system........................ 142
Child-protectors ................................... 57
How your child should wear
the seat belt ............................................ 91
Installing child restraints ...................152
Moon roof precautions ....................107
Power window lock switch.............. 101
Power window precautions .......... 103
Removed electronic key battery
precautions....................................... 503
Seat belt precautions .......................... 92
Seat heater precautions .................440
Battery precautions
...................................................... 481, 594
Child-protectors ...................................... 57
Cleaning
Exterior.................................................... 452
Interior .....................................................455
Seat belts................................................456
Clock* ....................................................... 432
Coat hooks .............................................. 442
Coin holder ............................................. 427
Condenser .............................................. 478
Console box ........................................... 426
Coolant
Engine coolant .................................... 477Cooling system
Engine overheating ..........................598
Cornering assist sensors ................... 248
Cruise control
Cruise control ..................................... 230
Dynamic radar cruise control ......234
Cup holders ............................................ 423
Curtain shield airbags ........................... 131
Customizable features....................... 622
Daytime running light system .......... 220
Defogger*
Rear window.......................................... 321
Side mirror .............................................. 321
Dimensions ............................................. 606
Display
Multi-information display............... 203
Trip information.................................. 206
Warning message ............................ 552
Do-it-yourself maintenance ............... 461
Door courtesy lights
Door courtesy lights .......................... 417
Wattage ................................................... 619
Door lock
Back door ................................................ 60
Side door .................................................. 56
Wireless remote control .................. 53
Door pockets ......................................... 422
D
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.
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Page 640 of 652

640
Alphabetical index
RX350/270_EE
Doors
Back door.................................................60
Door lock..................................31, 53, 56
Door windows ....................................... 101
Double locking system .......................121
Power back door..................................60
Side door .................................................. 56
Side mirrors ............................................. 98
Driver's seat belt reminder light .....546
Driving
Break-in tips ...........................................170
Correct posture ...................................129
Procedures ............................................ 168
Utility vehicle
precautions........................................289
Winter driving tips............................. 296
Driving position memory ....................... 81
Electric power steering ........................271
Electric sunshade................................... 108
Electronic features control ...............203
Electronic key
If the electronic key does not
operate properly ............................. 591
Electronic sunshade ............................. 108
Electronically modulated air
suspension ............................................ 256
Emergency brake signal .................... 272
Emergency flashers
Switch ...................................................... 532Emergency, in case of
If a warning buzzer sounds .......... 543
If a warning light turns on .............. 543
If a warning message is
displayed ............................................ 552
If the back door opener is
inoperative ........................................... 65
If the electronic key does not
operate properly ..............................591
If the engine will not start ............... 587
If the shift lever cannot be
shifted from “P” ...............................589
If the vehicle has a discharged
battery.................................................. 594
If you have a flat tire .........................572
If you lose your keys ........................590
If you think something is
wrong..................................................... 541
If your vehicle becomes stuck ......601
If your vehicle has to be
stopped in an emergency ......... 603
If your vehicle needs to be
towed ................................................... 533
If your vehicle overheats................598
Engine
Accessory mode ................................ 180
Compartment ..................................... 468
Engine switch ....................................... 180
Hood ....................................................... 465
How to start the engine .................. 180
Identification number....................... 607
If the engine will not start ............... 587
Ignition switch ...................................... 180
Overheating ........................................598
E
RX350_270_EE_48D77E.book 640 ページ 2014年1月24日 金曜日 午前10時4分