Page 84 of 1014

831-2. Hybrid system
1
GS450h_300h_OM_OM30D53E_(EE)
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 any autho-
rized Lexus dealer or repairer, or another duly qualified and equipped profes-
sional.
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 transmission 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 air intake vents on the both sides
of the rear seatback.
Maintenance, repair, recycling, and disposal
Contact any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional regarding maintenance, repair, recycling and dis-
posal. Do not dispose of the vehicle yourself.
Customization
Settings (e.g. on/off operation of the EV indicator) can be changed.
(Customizable features: P. 942)
Page 88 of 1014
871-2. Hybrid system
1
GS450h_300h_OM_OM30D53E_(EE)
For safety and security
CAUTION
High voltage precautions
The vehicle has high voltage DC and AC systems as well as a 12-volt sys-
tem. 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 replace 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.
Never try to open the service plug
access hole located behind the rear
seats. The service plug is used only
when the vehicle is serviced and is sub-
ject to high voltage.
Page 138 of 1014
137
3
Operation of
each component
GS450h_300h_OM_OM30D53E_(EE)3-1. Key information
Keys .................................. 138
3-2. Opening, closing and locking
the doors and trunk
Smart entry & start system 143
Wireless remote control .... 168
Doors ................................ 183
Trunk................................. 187
3-3. Adjusting the seats
Front seats ......................... 194
Driving position memory.. 198
Head restraints .................. 204
3-4. Adjusting the steering wheel
and mirrors
Steering wheel .................. 207
Inside rear view mirror ..... 208
Outside rear view mirrors ..211
3-5. Opening, closing the windows
and moon roof
Power windows................. 215
Moon roof ......................... 218
Page 187 of 1014
1863-2. Opening, closing and locking the doors and trunk
GS450h_300h_OM_OM30D53E_(EE)
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.
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 195 of 1014
1943-3. Adjusting the seats
GS450h_300h_OM_OM30D53E_(EE)
Front seats
Type A
Adjustment procedure
Type BType C
Page 196 of 1014
1953-3. Adjusting the seats
3
Operation of each component
GS450h_300h_OM_OM30D53E_(EE)
Seat position adjustment
switch
Seatback angle adjustment
switch
Seat cushion (front) angle
adjustment switch
Vertical height adjustment
switch
Seatback upper angle adjust-
ment switch (if equipped)
Lumbar support adjustment
switchPelvic support adjustment
switch (if equipped)
Seat cushion length adjust-
ment switch (if equipped) /
ottoman angle adjustment
switch (if equipped for front
passenger’s side)
Seatback side support adjust-
ment switch (if equipped)1
2
3
4
5
6
7
8
9
Page 197 of 1014

1963-3. Adjusting the seats
GS450h_300h_OM_OM30D53E_(EE)
Tilts the seatback forward
Tilts the seatback backward
Moves the seat forward
Moves the seat backward
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 passenger’s door is opened. (P. 199)
Seat operation switches on the side of the front passenger’s
seat (if equipped)
1
2
3
4
CAUTION
When adjusting the seat position
Take care when adjusting the seat position 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 death or serious injury in the event of
an accident.
Adjustments should not be made while driving as the seat may unexpect-
edly move and cause the driver to lose control of the vehicle.
Page 198 of 1014

1973-3. Adjusting the seats
3
Operation of each component
GS450h_300h_OM_OM30D53E_(EE)
CAUTION
Operating the front passenger’s seat from the driver’s seat (if equipped)
Do not operate the front passenger’s seat when a passenger is seated in it. In
addition, do not let anyone sit down in the front passenger’s seat while the
seat is being operated. The front passenger may catch their legs between the
instrument panel and seat, resulting in injury.
When adjusting the seat positions or the ottoman (if equipped)
Make sure to leave enough space around the feet so they do not get stuck.
When using the ottoman (if equipped)
Do not operate the ottoman when the vehicle is moving.
Failure to do so may cause death or serious injury in the event of sudden
braking or a collision.
Do not sit on the ottoman of the passenger seat.
Doing so may cause seat belts to be worn improperly, which may lead to
serious injury or death in the event of sudden braking or a collision.
Do not step on the ottoman.
Doing so could damage the ottoman, or could cause you to seriously
injure yourself by falling over.
Stow the ottoman when you get in or out of the vehicle or when the otto-
man is not in use to avoid stumbling over it.
Do not allow anyone to put their hands or feet under the passenger seat
when stowing the ottoman.