
466
5-2. Steps to take in an emergency
ES350_U*: If the engine does not start when the electronic key is inside the vehicle,
the electronic key battery may be de pleted or there may be difficulties
receiving the signal from the key. ( →P. 30)
Interior
buzzerExterior buzzerWarning messageDetailsCorrection
procedure
Once
Indicates that a
door has been
opened or closed
and the “ENGINE
S TA R T S TO P ”
switch has been
switched twice to
ACCESSORY
mode from OFF.
Press the
“ENGINE START
STOP” switch
while applying the
brakes.
(Comes on for 15 seconds.)
(Flashing)
Indicates that the
steering lock has
not released.
Press the
“ENGINE START
STOP” switch
again while turn-
ing the steering
wheel with the
brake pedal
depressed.
OnceIndicates that the
electronic key
does not operate
properly.
→ P. 4 8 1

480
5-2. Steps to take in an emergency
ES350_U
If the electronic key does not operate properly
Locking and unlocking the doors and key linked functions
Use the mechanical key built in to the electronic keys to operate the
doors. (→ P. 2 4 )
Remove the cover on the driver’s
door handle.
Locks all doors
Closes the windows/standard
moon roof (turn and hold)
Unlocks the door
Turning the key rearward unlocks
the driver's door. Turning the key
once again unlocks the other
doors.
Opens the windows/standard
moon roof (turn and hold)
If communication between the electronic key and vehicle is interrupted
(→ P. 30) or the electronic key cannot be used because the battery is
depleted, smart access system with push-button start and wireless remote
control cannot be used. In such cases, the doors can be opened or the
engine can be started by following the procedure below.
STEP1
STEP2

482
5-2. Steps to take in an emergency
ES350_UTo change “ENGINE START ST
OP” switch modes: Within 10
seconds of the buzzer sounding, release the brake pedal and
press the “ENGINE START STOP” switch. Modes can be
changed each time the switch is pressed. (→ P. 1 2 6 )
To start the engine: Press the “ENGINE START STOP” switch
within 10 seconds after the buzzer sounds, keeping the brake
pedal depressed.
In the event that the “ENGINE START STOP” switch still cannot be oper-
ated, contact your Lexus dealer.
■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 the temporary measure, it is recommend that the elec-
tronic key battery be replaced immediately when the battery depletes. ( →P. 411)
STEP3

546
Alphabetical index
ES350_U
Child safetyAirbag precautions.............................. 92
Battery precautions ............. 392, 485
Child restraint system........................102
Child-protectors ..................................... 41
How your child should wear
the seat belt .......................................... 60
Installing child restraints .................. 106
Moon roof precautions ..................... 75
Power window lock switch.............. 68
Power window precautions ............ 70
Removed electronic key
battery precautions ......................... 412
Seat belt comfort guide..................... 58
Seat belt extender precautions ..... 62
Seat belt precautions .......................... 60
Seat heater precautions .....330, 333
Trunk precautions ................................ 46
Child-protectors ....................................... 41
Cigarette lighter....................................328 Cleaning
Exterior ....................................................362
Interior..................................................... 365
Seat belts ............................................... 366
Clock ......................................................... 326
Coat hooks.............................................. 338
Compass .................................................. 349
Condenser ..............................................388
Console box .............................................319
Cooling system Engine overheating.......................... 486
Cornering assist sensors ...................... 171
Cruise control Cruise control....................................... 155
Dynamic radar crui se control.......158
Cup holders ..............................................321
Curtain shield airbags ........................... 86
Customizable features .........................517

547
Alphabetical index
ES350_U
Daytime running light system............ 149
DefoggerRear window.......................................... 215
Side mirror .............................................. 215
Dimension ................................................492
Dinghy towing ....................................... 204
Display Dynamic radar cruise control ...... 158
Trip information .................................... 143
Warning message ............................ 455
Do-it-yourself maintenance.............. 374
Door courtesy lights Door courtesy lights .......................... 314
Wattage .................................................. 501
Doors Door glasses........................................... 68
Door lock ............................... 26, 38, 40
Side mirrors............................................. 66
Driver's seat belt reminder light ..... 447
Driving Break-in tips .............................................119
Correct posture .................................... 84
Procedures .............................................. 118
Winter driving tips ................................191
Driving position memory ......................49 Electronic key
If the electronic key does not
operate properly ........................... 480
Emergency, in case of
If the electronic key does not operate properly ........................... 480
If the engine will not start................ 476
If the shift lever cannot be shifted from P ...................................478
If the vehicle battery is
discharged ........................................ 483
If the warning buzzer sounds ......445
If the warning light turns on...........445
If the warning message is
displayed............................................ 455
If you have a flat tire ......................... 467
If you lose your keys ......................... 479
If you think something is
wrong .....................................................441
If your vehicle becomes stuck .... 489
If your vehicle has to be stopped in an emergency ......... 490
If your vehicle needs to be towed....................................................435
If your vehicle overheats ............... 486DE

553
Alphabetical index
ES350_U
Radar cruise control .............................158
Radiator.................................................... 388
Radio................................................................ 219
Radio data system................................ 220
RDS............................................................ 220
Rear side marker lights
Replacing light bulbs ........................424
Wattage .................................................. 501
Rear sunshade....................................... 335
Rear turn signal lights Replacing light bulbs ........................424
Wattage .................................................. 501
Rear window defogger ........................ 215
Replacing Electronic key battery .........................411
Fuses .......................................................... 413
Light bulbs .............................................424
Reporting safety defects for
U.S. owners ......................................... 528 Safety Connect......................................353
Seat belts
Adjusting the seat belt ....................... 58
Automatic Locking Retractor.........59
Child restraint system installation............................................ 106
Cleaning and maintaining the seat belts .................................... 366
Emergency Locking Retractor ......59
How to wear your seat belt ............. 57
How your child should wear the seat belt ..........................................60
Pregnant women, proper seat belt use .........................59
Reminder light ..................................... 447
Seat belt extenders ..............................60
Seat belt pretensioners ..................... 58
Seat heaters ................................ 330, 332
Seat position memory ............................ 53
Seat ventilators ...................................... 332
Seating capacity ..................................... 190RS

557
Alphabetical index
ES350_U
Warning messagesDynamic radar
cruise control ...................... 456, 458
Engine oil level ....................................458
Engine oil maintenance..................458
Engine oil pressure........................... 455
Hood .......................................................458
Intuitive parking assist
sensor ..................................... 456, 458
Moon roof ............................................. 458
Open door ...........................................458
Parking brake ......................................458
Pre-collision system ............ 456, 458
Smart access system with
push-button start............................ 464
Steering lock ........................................ 456
Trunk ........................................................ 458
Washer fluid......................................... 458 Washer
Checking ...............................................393
Preparing and checking before winter ....................................... 191
Switch........................................................ 152
Washing and waxing ........................... 362
Weight Cargo capacity .................................... 187
Load limits .............................................. 190
Weight..................................................... 492
Wheels ...................................................... 407
Window glasses ...................................... 68
Window lock switch ............................... 68
Windows Power windows .....................................68
Rear window defogger.................... 215
Washer .................................................... 152
Windshield wipers
Position..................................................... 194
Windshield wipers ............................. 152
Wireless remote control key Replacing the battery.......................... 411
Wireless remote control key ..........38
WMA disc ............................................... 233

558
ES350_U
What to do if...
What to do if...
A tire puncturesP. 4 6 7If you have a flat tire
The engine does not start
P. 4 76If the engine will not start
P. 7 9Engine immobilizer system
P. 4 8 3If the vehicle battery is discharged
The shift lever cannot be
moved outP. 4 7 8If the shift lever cannot be shifted
from P
The engine coolant temperature
gauge enters the red zone
Steam can be seen coming
from under the hood
P. 4 8 6If your vehicle overheats
The key is lostP. 4 7 9If you lose your keys
The battery runs outP. 4 8 3If the vehicle battery is discharged
The doors cannot be lockedP. 4 0Doors
The horn begins to soundP. 8 1Alarm
The vehicle is stuck in mud or
sandP. 4 8 9If the vehicle becomes stuck