Page 811 of 908

8117-2. Steps to take in an emergency
ES350 300h_OM_OM33A01U_(U)
7
When trouble arises
■Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
■To prevent 12-volt battery discharge
●Turn off the headlights and the audio system while the hybrid system 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 12-volt battery
The electricity stored in the 12-volt battery will discharge gradually even when the
vehicle is not in use, due to natural discharge and the draining effects of certain elec-
trical appliances. If the vehicle is left for a long time, the 12-volt battery may dis-
charge, and the hybrid system may be unable to start. (The 12-volt battery recharges
automatically while the hybrid system is operating.)
■When recharging or replacing the 12-volt battery
●Make sure the key is not inside the vehicl e when recharging or replacing the 12-volt
battery to prevent the doors from being locked with the key left inside the vehicle
when the alarm operates.
●In some cases, it may not be possible to unlock the doors using the smart access
system with push-button start when the 12-volt battery is discharged. Use the wire-
less remote control or the mechanical key to lock or unlock the doors.
●The hybrid system may not start on the fir st attempt after the 12-volt battery has
recharged but will start normally after the second attempt. This is not a malfunction.
●The “POWER” switch mode is memorized by the vehicle. When the 12-volt battery
is reconnected, the system will return to the mode it was in before the 12-volt bat-
tery was discharged. Before disconnectin g the 12-volt battery, turn the “POWER”
switch off.
If you are unsure what mode the “POWER” switch was in before the 12-volt battery
discharged, be especially careful when reconnecting the 12-volt battery.
Page 832 of 908
832
ES350 300h_OM_OM33A01U_(U)
8-1. Specifications
Gasoline vehicles
Hybrid vehicles
Ignition system
Spark plug
Make
Gasoline vehicles
DENSO FK20HR11
Hybrid vehicles
DENSO FK16HR-A8
Gap
Gasoline vehicles
0.043 in. (1.1 mm)
Hybrid vehicles
0.031 in. (0.8 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
Electrical system
12-volt battery
Specific gravity reading
at 68 F (20 C): 1.2501.290 Fully charged
1.160 1.200 Half charged
1.060 1.100 Discharged
Charging rates
Quick charge
Slow charge15 A max.
5 A max.
12-volt battery
Open voltage at 68 F
(20 C):12.612.8 V Fully charged
12.2 12.4 V Half charged
11.8 12.0 V Discharged
(Voltage is checked 20 minutes after the hybrid sys-
tem and all lights are turned off.)
Charging rates5 A max.
Page 836 of 908
836
ES350 300h_OM_OM33A01U_(U)
8-1. Specifications
Light bulbs
Light BulbsBulb No.WTy p e
Exterior
HeadlightsHigh beam
Low beam (halogen bulbs)
Low beam (discharge bulbs)
9005
605535A B
C
Fog lights19D
Front turn signal lights7444NA28 /8E
Front side marker lightsW5W5F
Rear turn signal lightsWY21W21E
Back-up lightsW16W16F
Outer foot lightsW5W5F
Interior
Door courtesy lights5F
Vanity lights5F
Interior light8F
Pe r s o n a l l i g h t s8F
Tr u n k l i g h t5F
A: HB3 halogen bulbs
B: H11 halogen bulbs
C: D4S discharge bulbs D: H16 halogen bulbs E: Wedge base bulbs (amber)F: Wedge base bulbs (clear)
Page 856 of 908
856
ES350 300h_OM_OM33A01U_(U)
8-2. Customization
■Smart access system with push-button start (P. 123) and wireless
remote control ( P. 136)
FunctionDefault
settingCustom-
ized setting
“Lock/Unlock Feedback-
To n e ”
(Adjust the volume of
buzzer sounds)
5
Off
O—O—OO1 to 7
“Lock/Unlock Feedback-
Lights”
(Enable/disable the opera-
tion of the emergency
flashers when the vehicle is
locked or unlocked)
OnOffO—O—OO
“A u t o R e l o c k Ti m e r ”
(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—O—OO
30 seconds
120
seconds
Operation buzzer (When
the vehicle is locked or
unlocked)
OnOff—————O
Open door reminder
buzzer (When locking the
vehicle)
OnOff—————O
123456
Page 860 of 908
860
ES350 300h_OM_OM33A01U_(U)
8-2. Customization
■Automatic light control system (P. 224)
■Lights ( P. 2 2 4 )
*:Except for Canada
FunctionDefault
settingCustom-
ized setting
“Headlamps-On Sensitiv-
ity”
(Adjust the sensitivity of the
ambient light sensor)
Standard-2 to 2O—O——O
“Headlamps Auto-Off
Ti m e r ”
(Adjust the time
elapsed before the head-
lights automatically turn
off)
30 seconds
Off
O—O—OO60 seconds
90 seconds
Welcome light illumination
controlOnOff—————O
123456
FunctionDefault settingCustom-
ized setting
“Daytime Running Lights”
(Daytime running lights
can be disabled)
*
OnOffO—O—OO
123456
Page 862 of 908

862
ES350 300h_OM_OM33A01U_(U)
8-2. Customization
■Illumination (P. 603)
FunctionDefault
settingCustom-
ized setting
Interior lights illumination
controlOnOff—————O
“Interior Lights Off Timer”
(Time elapsed before the
interior lights turn off)
15 seconds
Off
O—O—OO7. 5 s e c o n d s
30 seconds
Operation after the
“START STOP ENGINE”
<“POWER”> switch is
turned off
OnOff—————O
Operation when the doors
are unlockedOnOff—————O
Operation when you
approach the vehicle with
the electronic key on your
person
OnOff—————O
Footwell lightingOnOff—————O
Outer foot lightsOnOff—————O
“Exterior Lights Off Timer”
(Time elapsed before the
outer foot lights turn off)
15 seconds
Off
O—O—OO7. 5 s e c o n d s
30 seconds
“Ambient illumin. (instru-
ment panel)”
(Enable/disable operation
of the ornament lights on
the instrument panel)*
OnOff—O—OOO
Sensitivity of the ambient
light sensor used for dim-
ming the meter lights etc.
Standard-2 to +2——O——O
Sensitivity of the ambient
light sensor used for
brightening the meter
lights etc.
Standard-2 to +2——O——O
123456
Page 863 of 908
ES350 300h_OM_OM33A01U_(U)
8638-2. Customization
8
Vehicle specifications
*:If equipped
■Rear sunshade* ( P. 6 2 3 )
*:If equipped
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
FunctionDefault
settingCustom-
ized setting123456
FunctionDefault settingCustom-
ized setting
Reverse operationOnOff—————O
Ti m e e l a p s e d b e f o r e t h e
reverse operation feature
activates
0.7 seconds
0 second
—————O0.9 seconds
1.2 seconds
123456
Page 864 of 908

864
ES350 300h_OM_OM33A01U_(U)
8-2. Customization
■Vehicle customization
●When the “Auto Lock by Speed” and “Auto Lock by Shift from P” are both on, the
door lock operates as follows.
• When shifting the shift lever to any position other than P, all the doors will be
locked.
• If the vehicle is started with all the door s locked, the “Auto Lock by Speed” would
not operate.
• If the vehicle is started with any door unlocked, the “Auto Lock by Speed” will operate.
●When the smart access system with push-b utton start is off, the “Select Doors to
Unlock” cannot be customized.
●When the doors remain closed after un locking the doors and the “Auto Relock
Timer” activates, the signals will be generated in accordance with the “Lock/
Unlock Feedback-Tone” and the “Lock/Unlock Feedback-Lights” settings.
■When customizing using the Remote Touch
Stop the vehicle in a safe place, apply the parking brake, and shift the shift lever to P.
Also, to prevent 12-volt battery discharge, leave the engine running
while customizing the features.
CAUTION
■During customization
As the engine needs to be running during customiza-
tion, 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 12-volt battery discharge, ensure that the engine is run-
ning while customizing features.