Page 787 of 917
7867-2. Steps to take in an emergency
ES350_300h_OM_OM33A60U_(U)
InteriorbuzzerExterior
buzzerWa r n i n g m e s s a g eDetailsCorrection procedure
OnceCon-
tinuous
An attempt was
made to exit the
vehicle with the
electronic key and
lock the doors with-
out first turning the
“START STOP
ENGINE”
<“POWER”> switch
off when the shift
lever was in P.
Tu r n t h e
“START
STOP
ENGINE”
<“POWER”>
switch off
and lock the
doors again.
9
times
An attempt was
made to drive when
the regular key was
not inside the vehi-
cle.Confirm
that the
electronic
key is inside
the vehicle.
Con-
tinuous
The driver’s door
was opened when
the shift lever was
not in P and the
“START STOP
ENGINE”
<“POWER”> switch
was not turned off.
Shift the
shift lever to
P.
(Displayed alternately)
(Flashes)
(Flashes)
(Flashes)
Page 788 of 917

7877-2. Steps to take in an emergency
ES350_300h_OM_OM33A60U_(U)
7
When trouble arises
InteriorbuzzerExterior
buzzerWa r n i n g m e s s a g eDetailsCorrection procedure
Con-
tinuousCon-
tinuous
The driver’s door
was opened and
closed while the
electronic key was
not in the vehicle,
the shift lever was
not in P and the
“START STOP
ENGINE”
<“POWER”> switch
was not turned off.
• Shift the shift lever
to P.
•Bring the elec-
tronic key
back into
the vehi-
cle.
Con-
tinuous
An attempt was
made to lock the
doors using the
smart access sys-
tem with push-but-
ton start while the
electronic key was
still inside the vehi-
cle.
Retrieve the
electronic
key from the
vehicle and
lock the
doors again.
OnceCon-
tinuous
An attempt was
made to lock either
front door by open-
ing a door and put-
ting the inside lock
button into the lock
position, then clos-
ing the door with
the electronic key
still inside the vehi-
cle.
Retrieve the
electronic
key from the
vehicle and
lock the
doors again.
(Displayed alternately)
(Flashes)
(Flashes)
(Flashes)
Page 812 of 917
8117-2. Steps to take in an emergency
ES350_300h_OM_OM33A60U_(U)
7
When trouble arises
■Trunk
Turn the mechanical key clock-
wise to open.
Ensure that the shift lever is in P and depress the brake pedal.
Touch the Lexus emblem side of
the electronic key to the “START
STOP ENGINE” <“POWER”>
switch.
The “START STOP ENGINE”
<“POWER”> switch will turn to IGNI-
TION ON mode.
When the smart access system with
push-button start is deactivated in
customization setting, the “START
STOP ENGINE” <“POWER”> switch
will turn to ACCESSORY mode.
Firmly depress the brake pedal and check that is shown on the
multi-information display.
Press the “START STOP ENGINE” <“POWER”> switch.
In the event that the engine still cannot be started, contact
your Lexus dealer.
Starting the engine
1
2
3
4
Page 825 of 917

824
ES350_300h_OM_OM33A60U_(U)
7-2. Steps to take in an emergency
If your vehicle overheats (hybrid vehicles)
■If the needle of the engine coolant temperature gauge enters the red
zone
Stop the vehicle in a safe place an d turn off the air conditioning sys-
tem, and then stop the hybrid system.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the hybrid system has cooled down sufficiently, inspect the
hoses and cooling system for leaks.
Radiator
Cooling fans
If a large amount of coolant
leaks, immediately contact your
Lexus dealer.
The following may indicate that your vehicle is overheating.
●The needle of the engine coolant temperature gauge ( P. 9 5 )
enters the red zone or a loss of hybrid system power is experienced.
(For example, the vehicle speed does not increase.)
●“Hybrid System Overheat” ( P. 780) is shown on the multi-informa-
tion display.
●Steam comes out from under the hood.
Correction procedures
1
2
3
1
2
Page 828 of 917

8277-2. Steps to take in an emergency
ES350_300h_OM_OM33A60U_(U)
7
When trouble arises
Start the hybrid system and check for the multi-information display.
If the message does not disappear:
Stop the hybrid system and contact your Lexus dealer.
If the message is not displayed:
Have the vehicle inspected at the nearest Lexus dealer.
CAUTION
■When inspecting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
●If steam is seen coming from under the hood, do not open the hood until the
steam has subsided. The engine compartment may be very hot.
●After the hybrid system has been turned off, check that the indicator on the
“POWER” switch and the “READY” indicator are off.
When the hybrid system is operating, the gasoline engine may automatically
start, or the cooling fan may suddenly oper ate even if the gasoline engine stops.
Do not touch or approach rotating parts such as the fan, which may lead to fin-
gers or clothing (especially a tie, a scarf or a muffler) getting caught, resulting in
serious injury.
●Do not loosen the radiator cap or the coolant reservoir cap while the hybrid sys-
tem and radiator are hot. High temper ature steam or coolant could spray out.
NOTICE
■When adding engine/power control unit coolant
Add coolant slowly after the hybrid syst em has cooled down sufficiently. Adding
cool coolant to a hot hybrid system too quickly can cause da mage to the hybrid
system.
■To prevent damage to the cooling system
Observe the following precautions:
●Avoid contaminating the coolant with foreign matter (such as sand or dust etc.).
●Do not use any coolant additives.
6
Page 863 of 917
862
ES350_300h_OM_OM33A60U_(U)
8-2. Customization
Customizable features
■Changing by using Remote Touch (vehicles with a navigation system)
Refer to “Navigation System Owner’s Manual”.
■Changing by using the Lexus Display Audio system screen
P. 3 4 8
■Changing by using the “DISP” button
P. 1 0 5
Your vehicle includes a variety of electronic features that can be per-
sonalized to your preferences. Th ese preferences can be changed by
using the “DISP” button, by using Remote Touch, Lexus Display Audio
system screen, or at your Lexus dealer.
Customizing vehicle features
Page 864 of 917
ES350_300h_OM_OM33A60U_(U)
8638-2. Customization
8
Vehicle specifications
Some function settings are changed simultaneously with other functions
being customized. Contact your Lexus dealer for further details.
Vehicles with a Lexus Display Au dio system: Settings that can be
changed using the Lexus Display Audio system
Vehicles with a Lexus Display Au dio system: Settings that can be
changed using the “DISP” button
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 “DISP” button
Vehicles without a Lexus Display Audio system and navigation system:
Settings that can be changed using the “DISP” button
Settings that can be changed by your Lexus dealer
Definition of symbols: O = Available, — = Not available
Customizable features
1
2
3
4
5
6
Page 865 of 917
864
ES350_300h_OM_OM33A60U_(U)
8-2. Customization
■Multi-information display (P. 100)
FunctionDefault
settingCustom-
ized setting
“Language”*“English” (English)(French)—O—OO—
(Spanish)
“Units”*“miles
(MPG)”“km (km/L)”
—O—OO—“km (L/
100km)”
“ECO lamp”
(gasoline vehicles)
ECO lamp/Eco Driving
Indicator Light“On (Self- lighting)”/ ”Off”
“Off”/”Off”
—O—OO—
“On
(Always)”/ “Off”
“On
(Always)”/ “On”
“Off”/”On”
“ECO lamp”
(hybrid vehicles)“On (Self-lighting)”“Off”
—O—OO—“On
(Always)”
“Drive monitor”“Outside”
“Fuel con- sumption”
—O—OO—“Cruising range”
“Tachometer Settings”
(hybrid vehicles)“On (Self-lighting)”
“HV Meter (Always)”
—O—OO—“Tachome- ter
(Always)”
123456