2015 Lexus GS450h battery

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GS450h_QG_OM30F72U_(U)
Hybrid System
■Hybrid System Indicator
Charge area
Shows regenerative charging.
Hybrid Eco area
Shows that gasoline engine power is
not being used very often.
The gasoline engine will automatically
stop and restart under various condi-
tions.
Eco area
Shows that the vehicle is being driven
in an Eco-friendly manner.
Po w e r a r e a
Shows that an Eco-friendly driving
range is being exceeded (during full
power driving etc.)
● Hybrid System Indicator is displayed when the driving mode is other than the sport
mode.
● By keeping the indicator needle within Ec o area, more Eco-friendly driving can be
achieved.
● Charge area indicates regeneration
* status. Regenerated energy will be used to charge
the battery.
*: When used in this manual, “regeneration” refers to the conversion of energy created by the movement of the vehicle into electrical energy.
Your vehicle is a hybrid vehicle. It has characteristics different from conventional vehicles.
Be sure you are closely familiar with the char acteristics of your vehicle, and operate with
care.
The hybrid system combines the use of a gaso line engine and an electric motor (traction
motor) according to driving conditions, impr oving fuel efficiency and reducing exhaust
emissions.
For details, refer to the “OWNER’S MANUAL”.
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GS450h_QG_OM30F72U_(U)
■Charging the hybrid ba ttery (traction battery)
If the shift lever is in N, the hybrid battery (t raction battery) will not be charged. Always put
the shift lever in P when the vehicle is stoppe d. When driving in heavy traffic, operate the
vehicle with the shift lever in D or S to avoid discharging the battery.
■ Regenerative braking
In the following situations, kinetic energy is converted to electric energy and deceleration
force can be obtained in conjunction with the recharging of the hybrid battery (traction bat-
tery).
● The accelerator pedal is released while driving with the shift position in D or S.
● The brake pedal is depressed while driving with the shift position in D or S.
■Sounds and vibrations specific to a hybrid vehicle
There may be no engine sounds or vibration even though the vehicle is able to move. For
safety, apply the parking brake and make sure to shift the shift position to P when parked.
The following sounds or vibrations may occur when the hybrid system is operating and are
not a malfunction:
● Motor sounds may be heard from the engine compartment.
● Sounds may be heard from the hybrid battery (traction battery) behind the rear seats
when the hybrid system starts or stops.
● Sounds from the hybrid system may be heard when the trunk lid is open.
● Sounds may be heard from the hybrid transm ission when the hybrid system starts or
stops.
● Engine sounds may be heard when accelerating sharply.
● Sounds may be heard due to regenerative braking when the brake pedal is depressed.
● Vibration may be felt when the ga soline engine starts or stops.
● Cooling fan sounds may be heard from the air intake vents on the both sides of the rear
seatback.
■Running out of fuel
When the vehicle has run out of fuel and the hybrid system cannot be started, refuel the
vehicle with at least enough gasoline to make the low fuel level warning light go off. If there is
only a small amount of fuel, the hybrid syst em may not be able to start. (The minimum
amount of fuel to add to make the low fuel level warning light go out is about 2.6 gal. [10.0 L,
2.2 Imp.gal.], when the vehicle is on a level surface. This value may vary when the vehicle is
on a slope.)

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GS450h_QG_OM30F72U_(U)
Energy Monitor/Consumption Screen
■Energy monitor
● How to display on the Remote Touch screen
Press the “MENU” button on the Remote Touch, then select on the “Menu”
screen, and then select “Fuel Consumption”.
If the “Trip Information” or “Past Record ” screen is displayed, select “Energy”.
● How to display on the mu lti-information display
Press the “DISP” button on the steering wheel several times to select the energy monitor
display.
You can view the status of your hybrid syst em on the multi-information display and the
Remote Touch screen.
Vehicles with a 12.3-inch display: The energy monitor or consumption screen can be dis-
played on the side display.
The flow of energy is displayed on the Remote Touch screen.
Red: gasoline energy
Amber: electrical energy
Light blue: energy recovery A light blue arrow appears when regenerative braking
occurs.
The flow of energy is indicated by the movement of the arrows
on the multi-information display.
The displayed energy flow, battery level, etc. wi ll change in response to the current driving
conditions.

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GS450h_QG_OM30F72U_(U)
EV Drive Mode
Turns EV drive mode on/offWhen EV drive mode is turned on, “EV
MODE” will be displayed on the multi-
information display. Pressing the switch
when in EV drive mode will return the
vehicle to normal driving (using the gas-
oline engine and electric motor [traction
motor]).
In EV drive mode the electric motor (traction motor), powered by the hybrid battery
(traction battery), is used to drive the vehicle.

What to do if...
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GS450h_QG_OM30F72U_(U)
■Starting the hybrid system
Ensure that the shift lever is in P and
depress the brake pedal.
Touch the Lexus emblem side of the
electronic key to the power switch.
The power switch will turn to ON
mode.
When the smart access system with
push-button start is deactivated in cus-
tomization setting, the power switch
will turn to ACCESSORY mode.
Firmly depress the brake pedal and
check that is shown on the
multi-information display.
Press the power switch.
In the event that the hybrid system still cannot be operated, contact your Lexus dealer.
If the hybrid system doesn’t start
Make sure that the correct operating procedures have been followed. Make sure that the brake pedal is firmly
depressed when attempting to start the
hybrid system. (P. 2 1 )
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If the electronic key battery becomes depleted, replace it with a new battery. For instruc-
tions on replacing the battery, refer to th e OWNER’S MANUAL. If you need further assis-
tance, contact your Lexus dealer.
Brake pedal
If the hybrid system still do es not start, see the OWNER’S MANUAL for more information
or contact your Lexus dealer.