
502
ES350_OM_OM33C68U_(U)8-2. Steps to take in an emergency
If the engine will not start
One of the following may be the cause of the problem:
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
●The engine may be flooded.
Try to restart the engine again following correct starting procedures.
(
→ P. 1 5 4 )
●There may be a malfunction in the engine immobilizer system. ( →P. 6 5 )
One of the following may be the cause of the problem:
●The battery may be discharged. ( →P. 5 0 6 )
●The battery terminal connections may be loose or corroded.
The engine starting system may be malfunctioning due to an electrical problem
such as electronic key battery depletion or a blown fuse. However, an interim
measure is available to start the engine. ( →P. 5 0 3 )
One of the following may be the cause of the problem:
●One or both of the battery terminals may be disconnected.
●The battery may be discharged. ( →P. 5 0 6 )
●There may be a malfunction in the steering lock system.
Contact your Lexus dealer if the problem cannot be repaired, or if repair procedures
are unknown.
If the engine will not start even though correct starting procedures are being
followed ( →P. 154), consider each of the following points:
The engine will not start even though the starter motor operates nor-
mally.
The starter motor turns over slowly , the interior lights and headlights
are dim, or the horn does not so und or sounds at a low volume.
The starter motor does not turn over
The starter motor does not turn over , the interior lights and headlights
do not turn on, or the horn does not sound.

5088-2. Steps to take in an emergency
ES350_OM_OM33C68U_(U)
■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 stopped.
●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 discharge 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 recharging or replacing the battery
●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.

520
ES350_OM_OM33C68U_(U)9-1. Spec
ifications
Cooling system
Capacity 9.7 qt. (9.2 L, 8.1 Imp.qt.)
Coolant type
Use either of the following:
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based non-sili-cate, non-amine, non-nitrite, and non-borate cool-
ant with long-life hybrid organic acid technology
Do not use plain water alone.
Ignition system
Spark plug
MakeDENSO FK20HR11
Gap0.043 in. (1.1 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
Electrical system
Battery
Open voltage at 68 °F
(20 °C):12.3 V or higher
(Voltage is checked 20 minutes after the engine and all
lights are turned off.)
Charging rates5 A max.

524
ES350_OM_OM33C68U_(U)9-1. Spec
ifications
A: H9 halogen bulbs B: Wedge base bulbs (amber)
C: Wedge base bulbs (clear)
Light bulbs
Light bulbsBulb No.WTy p e
Exterior
Headlights high beam
(halogen bulbs)65A
Front turn signal lights7444NA28 /8B
Front side marker lightsW5W5C
Rear turn signal lightsWY21W21B
Back-up lightsW16W16C
Outer foot lightsW5W5C
Interior
Door courtesy lights5C
Vanity lights8C
Trunk light5C

ES350_OM_OM33C68U_(U)
5459-2. Customization
9
Vehicle specifications
■Automatic light control system (→P. 1 6 5 )
■Lights (→P. 1 6 5 )
*:Except for Canada
■Intuitive parking assist (if equipped) ( →P. 223)
■Automatic air conditioning system ( →P. 3 6 8 )
FunctionDefault settingCustomized
setting
Adjust the sensitivity of the
ambient light sensor0-2 to 2O—O
Adjust the time elapsed
before the headlights auto-
matically turn off
30 seconds
Off
O—O60 seconds
90 seconds
Welcome light illumination
controlOnOff——O
123
FunctionDefault settingCustomized setting
Daytime running lights can be
disabled*OnOffO—O
123
FunctionDefault settingCustomized setting
Detection distance of the
front/rear center sensorFarNearO—O
Alert volume can be adjusted31 to 5O—O
Display setting
(when intuitive parking assist
is operating)All sensors displayedDisplay offO—O
123
FunctionDefault settingCustomized
setting
A/C Auto switch operationOnOffO—O
Exhaust gas sensor sensitivity0-3 to 3O—O
123

546
ES350_OM_OM33C68U_(U)9-2. Customization
■Illumination (
→P. 3 7 9 )
*: If equipped
FunctionDefault settingCustomized
setting
Interior lights illumination
controlOnOff——O
Ti m e e l a p s e d b e f o r e t h e i n t e -
rior lights turn off15 seconds
Off
O—O7. 5 s e c o n d s
30 seconds
Operation after the engine
switch is turned offOnOff——O
Operation when the doors
are unlockedOnOff——O
Operation when you
approach the vehicle with the
electronic key on your personOnOff——O
Footwell lightingOnOff——O
Outer foot lightsOnOff——O
Time elapsed before the outer
foot lights turn off15 seconds
Off
O—O7. 5 s e c o n d s
30 seconds
Enable/disable operation of
the ornament lights (“Ambi-
ent Illumin.”)*
OnOff—OO
Enable/disable operation of
the outer foot lights when you
approach the vehicle with the
electronic key on your person
OnOff——O
Enable/disable operation of
the outer foot lights when the
doors are unlocked with the
power door lock switch
OnOff——O
123

565Alphabetical index
ES350_OM_OM33C68U_(U)
Armrest door ......................................... 393
Assist grip ................................................ 394
Audio input.............................................. 279
Audio system
*....................................... 270
Audio input............................................ 279
AUX port ............................................... 279
Bluetooth
® audio ............................. 328
CD player ............................................. 302
iPod .......................................................... 309
MP3/WMA disc .............................. 302
Optimal use ......................................... 289
Portable music player ........................317
Radio ........................................................296
Setup menu ...........................................282
Steering wheel audio switches ............................................... 276
USB memory ........................................ 313
Automatic air conditioning
system .................................................... 368
Automatic headlight leveling
system ...................................................... 167
Automatic High Beam ........................ 168
Automatic light control system ......................................................165
Automatic transmission ...................... 159 If the shift lever
cannot be shifted from P ............. 162
AUX port
*.............................................. 279
Auxiliary box ..........................................385 Back-up lights
Replacing light bulbs ....................... 469
Wattage ................................................. 524
Battery ...................................................... 439 If the battery
is discharged ................................... 506
Preparing and checking before
winter.................................................... 263
Bluetooth
®*
Audio system ........................................ 318
Hands-free system
(for cellular phone) ....................... 329
Brake
Fluid ..........................................................438
Parking brake ........................................164
Warning light ....................................... 482
Brake assist ............................................. 258
Break-in tips ............................................. 142
Brightness control
Instrument panel light control ......... 77
BSM (Blind Spot Monitor) ............... 250
Care Aluminum wheels ................................415
Exterior ..................................................... 414
Interior ....................................................... 417
Seat belts..................................................418
Cargo capacity ........................................ 151
Cargo hooks .......................................... 386
CD player
*............................................. 302
Chains........................................................264
B
C
*: For vehicles with navigation system, refer to the
“NAVIGATION SYSTEM OWNER’S MANUAL”.

567Alphabetical index
ES350_OM_OM33C68U_(U)
Display Audio system ......................... 270Display settings ................................... 287
Setup menu ...........................................282
Do-it-yourself maintenance ..............427
Door courtesy lights Location ..................................................379
Wattage ..................................................524
Doors
Automatic door locking and unlocking system......................98
Door glasses ........................................... 131
Door lock .................................................. 97
Outside rear view mirrors .............. 128
Rear door child-protector................98
Driver’s seat position memory ........... 117 Driving position memory .................. 118
Memory recall function...................... 119
Power easy access system .............. 117
Driving Break-in tips ...........................................142
Correct driving posture ....................28
Driving mode select switch ..........248
Procedures ............................................ 140
Winter drive tips ................................. 263
Dynamic radar cruise control Function ................................................. 208
Eco drive mode ..................................... 248
Eco Driving Indicator............................. 84
EDR (Event data recorder) ...................10 Electric Power Steering (EPS)
Function .................................................. 259
Warning light .......................................483
Electronic key ............................................92
Battery-saving function ..................... 110
If the electronic key does not operate properly ............................504
Replacing the battery ...................... 457
Emergency, in case of If a warning buzzer
sounds ................................................. 482
If a warning light turns on .............. 482
If a warning message is displayed ....................................... 488
If the battery is discharged........... 506
If the electronic key does not operate properly........504
If the engine will not start ...............502
If you have a flat tire ............................491
If you think something
is wrong ............................................. 480
If your vehicle becomes
stuck........................................................513
If your vehicle has to be
stopped in an emergency.......... 475
If your vehicle needs
to be towed ....................................... 476
If your vehicle overheats ................. 510
Emergency flashers ............................. 474
E