Page 73 of 860

731-2. Hybrid system
GS450h_U (OM30D01U)
1
For safety and security
■After the 12-volt battery has discharged or has been changed or removed
The gasoline engine may not stop even if the vehicle is running on the hybrid battery
(traction battery). If this continues for a few days, contact your Lexus dealer.
■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 tran smission 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 gasoline engine starts or stops.
●Cooling fan sounds may be heard from the ai r intake vents on the both sides of the
rear seatback.
■Vehicle proximity notification system
In the following cases, the vehicle proximity notification system may be difficult for
surrounding people to hear.
●In very noisy areas
●In the wind or the rain
Also, as the vehicle proximity notification system is installed on the front of the vehi-
cle, it may be more difficult to hear from the rear of the vehicle compared to the
front.
■Maintenance, repair, recycling, and disposal
Contact your Lexus dealer regarding main tenance, repair, recycling and disposal.
Do not dispose of the vehicle yourself.
■Customization
Settings (e.g. on/off operation of the EV indicator) can be changed.
(Customizable features P. 8 0 7 )
Page 77 of 860

771-2. Hybrid system
GS450h_U (OM30D01U)
1
For safety and security
CAUTION
■High voltage precautions
The vehicle has high voltage DC and AC systems as well as a 12-volt system. DC
and AC high voltage is very dangerous and can cause severe burns and electric
shock that may result in death or serious injury.
●Never touch, disassemble, remove or re place the high voltage parts, cables or
their connectors.
●The hybrid system will become hot after starting as the system uses high voltage.
Be careful of both the high voltage and the high temperature, and always obey
the caution labels attached to the vehicle.
■Road accident cautions
Observe the following precautions to reduce the risk of death or serious injury:
●Pull your vehicle off the road, apply the parking brake, shift the shift lever to P, and
turn the hybrid system off.
●Do not touch the high voltage parts, cables and connectors.
●If electric wires are exposed inside or outside your vehicle, an electric shock may
occur. Never touch exposed electric wires.
●If a fluid leak occurs, do not touch the flui d as it may be strong alkaline electrolyte
from the hybrid battery (traction battery). If it comes into contact with your skin or
eyes, wash it off immediately with a large amount of water or, if possible, boric
acid solution. Seek imme diate medical attention.
●If a fire occurs in the hybrid vehicle, leave the vehicle as soon as possible. Never
use a fire extinguisher that is not meant for electric fires. Using even a small
amount of water may be dangerous.
●If your vehicle needs to be towed, do so with rear wheels raised. If the wheels
connected to the electric motor (traction motor) are on the ground when towing,
the motor may continue to generate electricity. This may cause an electricity
leakage leading to a fire. ( P. 7 0 4 )
●Carefully inspect the ground under the vehicle. If you find that liquid has leaked
onto the ground, the fuel system may have been damaged. Leave the vehicle as
soon as possible.
●Never try to open the service plug access
hole located behind the rear seats. The ser-
vice plug is used only when the vehicle is
serviced and is subject to high voltage.
Page 117 of 860
117
GS450h_U (OM30D01U)
3
Operation of
each component
3-1. Key information
Keys ....................................................118
3-2. Opening, closing and locking the doors and trunk
Smart access system with push-button start .............. 121
Wireless remote control .......... 134
Doors ................................................ 137
Trunk ................................................... 141
3-3. Adjusting the seats Front seats ...................................... 148
Driving position memory ......... 150
Head restraints ............................ 155
3-4. Adjusting the steering wheel and mirrors
Steering wheel ............................. 158
Inside rear view mirror.............. 159
Outside rear view mirrors ......... 161
3-5. Opening, closing the windows and moon roof
Power windows ............................ 164
Moon roof ....................................... 167
Page 140 of 860
140
GS450h_U (OM30D01U)
3-2. Opening, closing and locking the doors and trunk
CAUTION
■To prevent an accident
Observe the following precautions while driving the vehicle.
Failure to do so may result in a door opening and an occupant throwing out of the
vehicle, resulting in death or serious injury.
●Ensure that all doors are properly closed and locked.
●Do not pull the inside handle of the doors while driving.
Be especially careful for the front doors, as the doors may be opened even if the
inside lock buttons are in locked position.
●Set the rear door child-protector locks when children are seated in the rear seats.
Page 148 of 860
148
GS450h_U (OM30D01U)
3-3. Adjusting the seats
Front seats
Ty p e A
Ty p e B
Adjustment procedure
Seat position adjustment switch
Seatback angle adjustment
switch
Seat cushion (front) angle adjust-
ment switch
Vertical height adjustment switch
Seatback upper angle adjust-
ment switch (if equipped)Lumbar support adjustment
switch
Pelvic support adjustment
switch (if equipped)
Seat cushion length adjustment
switch (if equipped)
Seatback side support adjust-
ment switch (if equipped)1
2
3
4
5
6
7
8
9
Page 149 of 860

GS450h_U (OM30D01U)
1493-3. Adjusting the seats
3
Operation of each component
■Power easy access system
The driver’s seat and steering wheel move in accordance with power switch mode
and the driver’s seat belt condition. The passenger’s seat moves when the passen-
ger’s door is opened. (P. 1 5 3 )
CAUTION
■When adjusting the seat position
●Take care when adjusting the seat positi on to ensure that other passengers are
not injured by the moving seat.
●Do not put your hands under the seat or near the moving parts to avoid injury.
Fingers or hands may become jammed in the seat mechanism.
■Seat adjustment
To reduce the risk of sliding under the lap belt during a collision, do not recline the
seat more than necessary.
If the seat is too reclined, the lap belt may slide past the hips and apply restraint
forces directly to the abdomen, or your neck may contact the shoulder belt,
increasing the risk of de ath or serious injury in the event of an accident.
Adjustments should not be made while dr iving as the seat may unexpectedly move
and cause the driver to lose control of the vehicle.
■When adjusting the seat positions
Make sure to leave enough space around the feet so they do not get stuck.
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150
GS450h_U (OM30D01U)
3-3. Adjusting the seats
Driving position memory
Check that the shift lever is in P.
Turn the power switch to ON mode.
Adjust the driver’s seat, steering wheel, and outside rear view mirrors to
the desired positions. (When memorizing the front passenger’s seat,
adjust the front passenger’s se at to the desired positions.)
While pressing the “SET” button,
or within 3 seconds after the
“SET” button is pressed, press
button “1”, “2” or “3” until the sig-
nal beeps.
If the selected button has already
been preset, the previously recorded
position will be overwritten.
Your preferred driving position (the position of the driver’s seat, steer-
ing wheel and outside rear view mirrors) can be memorized and
recalled by pressing a button. It is also possible to set this function to
activate automatically when the doors are unlocked.
Three different driving positions can be entered into memory.
The same buttons are found on the front passenger’s side, allowing the
position of the front passenger’s seat to be memorized (if equipped).
Entering a position to memory
1
2
3
4
Page 151 of 860
GS450h_U (OM30D01U)
1513-3. Adjusting the seats
3
Operation of each component
Check that the shift lever is in P.
Turn the power switch to ON mode.
Press button “1”, “2” or “3” to
recall the desired position.
■When you want to stop the position recall operation part-way through
Perform any of the following operations:
●Press the “SET” button.
●Press button “1”, “2” or “3”.
●Adjust the seat using the switches (only cancels seat position recall).
■The adjusted positions that can be memorized
Vehicles without seatback side support adjustment switch
The adjusted positions other than the positi on adjusted by lumber support switch can
be memorized.
Vehicles with seatback side support adjustment switch
All adjusted positions can be memorized.
Recalling the memorized position
1
2
3