2016 Lexus GS450h brake

GS450h_OM_OM30E99U_(U)
1814-2. Driving procedures
4
Driving
Stop the vehicle completely.
Shift the shift lever to P.
Set the parking brake. (P. 1 9 3 )
Press the power switch.
Release the brake pedal and check that “POWER ON” on the multi-informa-
tion display is off.
Modes can be changed by pressing the po wer switch with brake pedal released.
(The mode changes each time the switch is pressed.)
Off
*
The emergency flashers can be used.
“POWER ON” will not be displayed on
the multi-information display.
ACCESSORY mode
Some electrical components such as the
audio system can be used.
”POWER ON” will be displayed on the
multi-information display.
ON mode
All electrical components can be used.
“POWER ON” will be displayed on the
multi-information display.
*: If the shift lever is in a position other than P when turning off the hybrid system, the power switch will be turned to ACCESSORY mode, not to off.
Stopping the hybrid system
Changing power switch modes
1
2
3
4
5

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4-2. Driving procedures
If the hybrid system is stopped with the shift lever in a position other than P, the
power switch will not be turned off but instead be turned to ACCESSORY
mode. Perform the following procedure to turn the switch off:Check that the parking brake is set.
Shift the shift lever to P.
Check that “Turn Off Vehicle” is displayed on the multi-information display
and then press the power switch once.
Check that “Turn Off Vehicle” on the multi-information display is off.
■Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes or ON mode (the
hybrid system is not operating) for more than an hour with the shift lever in P, the power
switch will automatically turn off. However, this function cannot entirely prevent 12-volt
battery discharge. Do not leave the vehicle with the power switch in ACCESSORY or
ON mode for long periods of time when the hybrid system is not operating.
■Sounds and vibrations specific to a hybrid vehicle
 P. 6 8
■Electronic key battery depletion
P. 118
■When the ambient temperature is low, such as during winter driving conditions
When starting the hybrid system, the flas hing time of the “READY” indicator may be
long. Leave the vehicle as it is until the “REA DY” indicator is steady on, as steady means
the vehicle is able to move.
■Conditions affe cting operation
 P. 1 3 5
■Notes for the entry function
P. 1 3 6
■If the hybrid system does not start
●The immobilizer system may no t have been deactivated. (P. 74 )
Contact your Lexus dealer.
●Check that the shift lever is se curely set in P. The hybrid system may not start if the shift
lever is displaced out of P. “Shift to P position to Start” will be displayed on the multi-
information display.
■Steering lock
After turning the power switch off and opening and closing the doors, the steering wheel
will be locked due to the stee ring lock function. Operating the power switch again auto-
matically cancels the steering lock.
When stopping the hybrid system with the shift lever in a position other
than P
1
2
3
4

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4-2. Driving procedures
■Switching to EV drive mode when the gasoline engine is cold
If the hybrid system is started while the gasoline engine is cold, the gasoline engine will
start automatically in order to warm up. In th is case, you will become unable to switch to
EV drive mode.
■Automatic cancelation of EV drive mode
When driving in EV drive mode, the gasoline engine may automatically restart in the fol-
lowing situations. When EV drive mode is ca nceled, a buzzer will sound and the EV drive
mode indicator will flash and go off.
●The hybrid battery (traction battery) becomes low.
The remaining battery level indicated in the “Energy Monitor” display is low.
(  P. 1 0 8 )
●Vehicle speed high.
●The accelerator pedal is depressed firm ly or the vehicle is on a hill etc.
When it is possible to inform the driver of automatic cancelation in advance, a prior
notice screen will appear on the multi-information display.
■Possible driving distance when driving in EV drive mode
EV drive mode’s possible driving distance ra nges from a few hundred meters to approxi-
mately 0.6 mile (1 km). However, dependin g on vehicle conditions, there are situations
when EV drive mode cannot be used.
(The distance that is possible depends on the hybrid battery [traction battery] level and
driving conditions.)
■Fuel economy
The hybrid system is designed to achieve the best possible fuel economy during normal
driving (using the gasoline engine and electric motor [traction motor]). Driving in EV
drive mode more than necessary may lower fuel economy. To prevent gasoline engine warm up in order to
reduce noises, start the hybrid system without
starting the gasoline engine, pressing the power
switch with fully depressing the brake pedal and
pressing the EV drive mode switch.
WA R N I N G
■Caution while driving
When driving in EV drive mode no engine noise is made. As such, pedestrians, people
riding bicycles or other people and vehicles in the surrounding area may not be aware
of the vehicle starting off or approaching them. Therefore, take extra care while driving
even if the vehicle proximity notification system is active.

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GS450h_OM_OM30E99U_(U)4-2. Driving procedures
4
Driving
Hybrid transmission
While the power switch is in ON mode, move the shift lever with the brake
pedal depressed.
When shifting the shift lever between P and D, make sure that the vehicle is com-
pletely stopped.
*1: To improve fuel efficiency and reduce noises, set the shift lever in D for normal driving.
*2: By selecting shift ranges using S mode, you can control accelerating forces and
engine braking forces.
Shifting the shift lever
Shift position purpose
Shift positionObjective or function
PParking the vehicle/starting the hybrid system
RReversing
NNeutral (Condition in which the power is not transmitted)
DNormal driving*1
SS mode driving*2 (  P. 1 9 0 )

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Driving
Parking brake
Sets the parking brake
The parking brake indicator light will
come on. ( P. 1 9 4 )
Press and hold the parking brake switch
if an emergency occurs and it is neces-
sary to operate the parking brake while
driving.
Releases the parking brake
Operate the parking brake switch while
depressing the brake pedal. Make sure
that the parking brake indicator light
goes off.
The parking brake is set or released automatically according to shift lever opera-
tion.
Turns automatic mode on/off
●When the shift lever is moved out of
P, the parking brake will be released.
●When the shift lever is moved into P,
the parking brake will be set.
Operate the shift lever with the brake
pedal depressed.
A selections can be made as de sired from the following modes.
Manual mode
U.S.A. Canada
1
2
Automatic mode

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4-2. Driving procedures
■Parking brake operation
●When the power switch is not in ON mode, the parking brake cannot be released using
the parking brake switch.
●When the power switch is not in ON mode, automatic mode (automatic brake setting
and releasing) is not available.
●If the parking brake is operated repeatedly over a short period of time, the system may
restrict operation to prevent overheating. If this happens, refrain from operating the
parking brake. Normal operation will return after about 1 minute.
●In situations such as when parking on a steep slope*, the maximum amount of braking
force can be used by pressing the parking brake switch with the parking brake already
set.
*: Use wheel chocks when parking on a steep slope.
■Parking brake operation sound
When the parking brake operates, a motor sound (whirring sound) may be heard. This
does not indicate a malfunction.
■Parking brake indicator light
●Depending on the power switch mode, the parking brake indicato r light will come on
and stay on as described below:
ON mode: Comes on until the parking brake is released.
Not in ON mode: Stays on for approximately 15 seconds.
●When the power switch is turned off with th e parking brake set, the parking brake indi-
cator light will stay on for about 15 seco nds. This does not indicate a malfunction.
■When there is a malfunction in the system
Warning lights and/or warning message will turn on or flash. ( P. 4 0 2 , 4 0 6 )
Depending on the condition, the par king brake indicator light may flash.
■Parking brake engaged warning buzzer
P. 4 1 2
■Usage in winter time
P. 2 7 5
NOTICE
■When parking the vehicle
Before you leave the vehicle, set the parking brake, shift the shift lever to P and make
sure that the vehicle does not move.
■When the system malfunctions
Stop the vehicle in a safe place and check the warning messages.
■When the parking brake cannot be released due to a malfunction
Use the parking brake release tool to manually release the parking brake. (P. 4 4 9 )
Driving the vehicle with the parking brake set will lead to brake components overheat-
ing, which may affect braking perf ormance and increase brake wear.

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Driving
Brake Hold
Turns the brake hold system on
The brake hold standby indicator
(green) comes on. Wh ile the system is
holding the brake, the brake hold oper-
ated indicator (yellow) comes on.
■Brake hold system operating conditions
The brake hold system cannot be turn ed on in the following conditions:
●The driver’s door is not closed.
●The driver is not wearing the seat belt.
●“EPB Activation Stopped Incompletely” or “Electronic Parking Brake Malfunction Visit
Your Dealer” is displayed on the multi-information display.
If any of the conditions above are detected when the brake hold system is enabled, the
system will turn off and the brake hold standby indicator light will go of f. In addition, if any
of the conditions are detected while the sy stem is holding the brake, a warning buzzer
will sound and a message will be shown on th e multi-information display. The parking
brake will then be set automatically.
■Brake hold function
●If the brake pedal is left released for a period of about 3 minutes after the system has
started holding the brake, the parking brake w ill be set automatically. In this case, a
warning buzzer sounds and a message is shown on the multi-information display.
●To turn the system off while the system is holding the brake, firmly depress the brake
pedal and press the button again.
●The brake hold function may not hold the vehicle when the vehicle is on a steep incline.
In this situation, it may be necessary for the driver to apply the brakes. A warning
buzzer will sound and the multi-information di splay will inform the driver of this situa-
tion. ( P. 4 0 6 )
The brake hold system keeps the brake applied when the shift lever is in D, S or
N with the system on and the brake pedal has been depressed to stop the vehi-
cle. The system releases the brake when the accelerator pedal is depressed
with the shift lever in D or S to allow smooth start off.

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4-2. Driving procedures
■When the parking brake is set automatically while the system is holding the brakes
The parking brake will not be released auto matically. Perform one of the following proce-
dures to release the parking brake and conf irm that the parking brake indicator light
turns off. ( P. 1 9 3 )
●With the brake pedal depressed, operate the parking brake switch.
●Fasten your seat belt, check that the shift leve r is in either D or R and slowly depress the
accelerator pedal.
■Warning message and buzzers
Warning messages and buzzers are used to indicate a system malfunction or to inform
the driver of the need for caution. ( P. 4 0 6 )
WA R N I N G
■When the vehicle is on a steep incline
When using the brake hold system on a stee p incline exercise caution. The brake hold
function may not hold the vehicle in such a situation.
■When stopped on a slippery road
The system cannot stop the vehicle when the gripping ability of the tires has been
exceeded. Do not use the system when stopped on a slippery road.
NOTICE
■When parking the vehicle
The brake hold system is not designed for use when parking the vehicle for a long
period of time. Turning the power switch off while the system is holding the brake may
release the brake, which would cause the vehicle to move. When operating the power
switch, depress the brake pedal, set the parking brake and shift the shift lever to P.