Page 419 of 576
ES350_OM_OM33B64U_(U)
4197-2. Maintenance
7
Maintenance and care
Vehicle exterior
ItemsCheck points
Doors/trunk• Do the doors/trunk operate smoothly?
Engine hood• Does the engine hood lock system work properly?
Fluid leaks• There should not be any signs of fluid leakage after
the vehicle has been parked.
Ti r e s
• Is the tire inflation pressure correct?
• The tires should not be damaged or excessively worn.
• Have the tires been rotated according to the mainte- nance schedule?
• The wheel nuts should not be loose.
Windshield wipers
• The wiper blades should no t show any signs of crack-
ing, splitting, wear, contamination or deformation.
• The wiper blades should clear the windshield without
streaking or skipping.
WA R N I N G
■If the engine is running
Turn the engine off and ensure that there is adequate ventilation before performing
maintenance checks.
Page 433 of 576

ES350_OM_OM33B64U_(U)
4337-3. Do-it-yourself maintenance
7
Maintenance and care
Check the battery as follows.
■Battery exterior
Make sure that the battery terminals are not corroded and that there are no
loose connections, cracks, or loose clamps. Make sure that the terminal cov-
ers are secured over the battery terminals.Te r m i n a l s
Hold-down clamp
■Before recharging
When recharging, the battery produces hydrogen gas which is flammable and explosive.
Therefore, observe the following before recharging:
●If recharging with the battery installed on the vehicle, be sure to disconnect the ground
cable.
●Make sure the power switch on the charger is off when connecting and disconnecting
the charger cables to the battery.
■After recharging/reconnecting the battery
The engine may not start. Follow the proc edure below to initialize the system.
Shift the shift lever to P.
Open and close any of the doors.
Restart the engine.
●Unlocking the doors using the smart access system with push-button start may not be
possible immediately after reconnecting the battery. If this happens, use the wireless
remote control or the mechanical key to lock/unlock the doors.
●Start the engine with the engine switch in ACCESSORY mode. The engine may not
start with the engine switch turned off. However, the engine will operate normally from
the second attempt.
●The engine switch mode is recorded by the vehicle. If the battery is reconnected, the
vehicle will return the engine switch mode to the status it was in before the battery was
disconnected. Make sure to turn off the en gine before disconnect the battery. Take
extra care when connecting the battery if the engine switch mode prior to discharge is
unknown.
If the engine will not start even after mult iple attempts, contact your Lexus dealer.
Battery
1
2
1
2
3
Page 499 of 576

499
ES350_OM_OM33B64U_(U)8-2. Steps to take in an emergency
8
When trouble arises
If the electronic key do
es not operate properly
■Doors
Use the mechanical key (P. 9 0 ) i n
order to perform the following oper-
ations:
Locks all the doors
Closes the windows and moon
roof (turn and hold)
*
Unlocks the door
Turning the key rearward unlocks the
driver’s door. Turning the key once
again within 5 seconds unlocks the
other doors.
Opens the windows and moon roof (turn and hold)*
*
: This setting must be customized at your Lexus dealer.
■Tr u n k
Turn the mechanical key clockwise
to open.
If communication between the electronic key and vehicle is interrupted
( P. 108) or the electronic key cannot be used because the battery is
depleted, the smart access system with push-button start and wireless
remote control cannot be used. In su ch cases, the doors and trunk can be
opened and the engine can be started by following the procedure below.
Locking and unlocking the doors, un locking the trunk and key linked
functions
1
2
3
4
Page 501 of 576
501
ES350_OM_OM33B64U_(U)8-2. Steps to take in an emergency
8
When trouble arises
If the battery is discharged
If you have a set of jumper (or booster)
cables and a second vehicle with a 12-volt
battery, you can jump start your vehicle by following the steps below.
Confirm that the electronic key is
being carried.
When connecting the jumper (or
booster) cables, depe nding on the situa-
tion, the alarm may activate and doors
locked. ( P. 6 8 )
Open the hood ( P. 4 2 3 )
Remove the engine cover.
The following procedures may be used to start the engine if the vehicle’s bat-
tery is discharged.
You can also call your Lexus dealer or a qualified repair shop.
1
2
3
Page 503 of 576

5038-2. Steps to take in an emergency
ES350_OM_OM33B64U_(U)
8
When trouble arises
■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 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 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.
Page 536 of 576
536
ES350_OM_OM33B64U_(U)9-2. Customization
■AFS (Adaptive Front-lighting System) (if equipped) (
P. 1 6 2 )
■Door lock ( P. 93, 499)
FunctionDefault
settingCustomized setting
AFS (Adaptive Front-lighting
System)OnOff—O—
123
FunctionDefault settingCustomized setting
Allows all doors to be
unlocked by turning the
mechanical key twice in the
driver’ doorOn (Driver’s
door unlocked in one step, all
doors unlocked in two steps)
Off (All doors
unlocked in one
step)——O
All doors are automatically
lockedShifting the shift
lever to position other than P
Off
O—OVehicle speed is
approximately 12
mph (20 km/h) or higher
All doors are automatically
unlockedShifting the shift lever to POff
O—ODriver’s door is opened
Locking/unlocking of the
trunk when all doors are
locked/unlocked
OnOff——O
123
Page 537 of 576

ES350_OM_OM33B64U_(U)
5379-2. Customization
9
Vehicle specifications
■Smart access system with push-button start and wireless remote control
( P. 9 3 )
■Smart access system with push-button start ( P. 9 3 )
FunctionDefault settingCustomized
setting
Adjust the volume of buzzer
sounds5
Off
O—O
1 to 7
Enable/disable the operation
of the emergency flashers
when the vehicle is locked or
unlocked
OnOffO—O
Adjust the time elapsed
before the automatic door
lock function is activated if a
door is not opened after
being unlocked
60 seconds
Off
O—O30 seconds
120 seconds
Operation buzzer (When the
vehicle is locked or unlocked)OnOff——O
Open door reminder buzzer
(When locking the vehicle)OnOff——O
123
FunctionDefault settingCustomized setting
Smart access system with
push-button start can be dis-
abledOnOff——O
The doors that are unlocked
using the smart access system
with push-button start can be
selected
Driver’s doorAll the doorsO—O
Number of consecutive door
lock operations2 timesAs many as desired——O
123
Page 538 of 576

538
ES350_OM_OM33B64U_(U)9-2. Customization
■Wireless remote control (
P. 9 3 )
■Driving position memory* ( P. 115)
*: If equipped
■Powe r w i n d ow s ( P. 129) and moon roof ( P. 1 3 2 )
FunctionDefault settingCustomized
setting
Wireless remote controlOnOff——O
Allows all doors to be
unlocked by pressing
on the electronic key twice
On (Driver’s
door unlocked in one step, all
doors unlocked in two steps)
Off (All doors
unlocked in one
step)O—O
Trunk unlocking operationPress and hold (short)
One short press
——O
Push twice
Press and hold (long)
Off
Alarm (panic mode)OnOff——O
123
FunctionDefault settingCustomized
setting
Driver’s seat movement when
exiting the vehicleFullOffO—OPa r t i a l
Selecting the door linking
driving position memory with
door unlock operation
Driver’s doorAll doors——O
123
FunctionDefault settingCustomized setting
Mechanical key linked opera-
tionOffOn——O
Wireless remote control
linked operation (Open only)OffOn——O
Buzzer sounds if operated
using wireless remote controlOnOff——O
123