2018 Lexus GS450h seats

681-2. Hybrid system
GS450h_OM_OM30G62U_(U)
■Conditions in which the gasoline engine may not stop
The gasoline engine starts and stops automati cally. However, it may not stop automati-
cally in the following conditions:
●During gasoline engine warm-up
●During hybrid battery (traction battery) charging
●When the temperature of the hybrid battery (traction battery) is high or low
●When the heater is switched on
■Charging the hybrid battery (traction battery)
As the gasoline engine charges the hybrid battery (traction battery), the battery does not
need to be charged from an ou tside source. However, if the vehicle is left parked for a
long time the hybrid battery (traction batter y) will slowly discharge. For this reason, be
sure to drive the vehicle at least once every few months for at least 30 minutes or 10
miles (16 km). If the hybrid battery (traction battery) beco mes fully discharged and you
are unable to start the hybrid system, contact your Lexus dealer.
■Charging the 12-volt battery
→ P. 459
■After the 12-volt battery has discharged or when the terminal has been removed and
installed during exchange, etc.
The gasoline engine may not stop even if the vehicle is being driven by the hybrid battery
(traction battery). If this continues fo r a few days, contact your Lexus dealer.
■Sounds and vibrations specific to a hybrid vehicle
There may be no engine sound or vibration even though the vehicle is able to move with
the “READY” indicator is illuminated. For sa fety, apply the parking brake and make sure
to shift the shift lever to P when parked.
The following sounds or vibrations may occu r 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.
●Relay operating sounds such as a snap or so ft clank will be emitted from the hybrid bat-
tery (traction battery), behind the rear se ats, when the hybrid system is started or
stopped.
●Sounds from the hybrid system may be heard when the trunk lid is open.
●Sounds may be heard from the transmission wh en the gasoline engine starts or stops,
when driving at low spee ds, or during idling.
●Engine sounds may be heard when accelerating sharply.
●Sounds may be heard due to regenerative braking when the brake pedal is depressed
or as the accelerator pedal is released.
●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.

721-2. Hybrid system
GS450h_OM_OM30G62U_(U)
WARNING
■High voltage precautions
This 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 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 warn-
ing 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 park ing 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 ou tside 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 immedi ate 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 el ectric 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 con-
nected to the electric motor (traction motor) are on the ground when towing, the
motor may continue to generate elec tricity. This may cause a fire. (→P. 398)
●Carefully inspect the ground under the vehicl e. 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 ser-
viced and is subject to high voltage.

117
GS450h_OM_OM30G62U_(U)
3
Operation of
each component
3-1. Key information
Keys ....................................................118
3-2. Opening, closing and locking the doors and trunk
Doors ................................................122
Trunk ................................................ 128
Smart access system with push-button start ............ 135
3-3. Adjusting the seats Front seats...................................... 143
Driving position memory ......... 145
Head restraints ............................ 150
3-4. Adjusting the steering wheel and mirrors
Steering wheel ............................. 153
Inside rear view mirror ............. 154
Outside rear view mirrors....... 156
3-5. Opening, closing the windows and moon roof
Power windows ........................... 160
Moon roof ...................................... 163

GS450h_OM_OM30G62U_(U)
1273-2. Opening, closing and locking the doors and trunk
3
Operation of each component
WARNING
■To prevent an accident
Observe the following precautions while driving the vehicle.
Failure to do so may result in a door openin g and an occupant throwing out of the vehi-
cle, resulting in deat h 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.

143
GS450h_OM_OM30G62U_(U)3-3. Adjusting the seats
3
Operation of each component
Front seats
Adjustment procedure
Seat position adjustment switch
Seatback angle adjustment switch
Seat cushion (front) angle adjust-
ment switch
Vertical height adjustment switch
Seatback upper angle adjustment
switch (if equipped) Lumbar support ad
justment switch
Pelvic support adjustment switch (if
equipped)
Seat cushion length adjustment
switch (if equipped)
Seatback side support adjustment
switch (if equipped)1
2
3
4
5
6
7
8
9

144
GS450h_OM_OM30G62U_(U)
3-3. Adjusting the seats
■When adjusting the seat
Take care when adjusting the seat so that the head restraint does not touch the ceiling.
■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. 145)
WARNING
■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.
●Make sure to leave enough space around the feet so they do not get stuck.
■Seat adjustment
To reduce the risk of sliding under the lap be lt 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 shou lder belt, increasing the risk
of death or serious injury in the event of an accident.
Adjustments should not be made while drivin g as the seat may unexpectedly move and
cause the driver to lose control of the vehicle.

145
GS450h_OM_OM30G62U_(U)3-3. Adjusting the seats
3
Operation of each component
Driving position memory
The seat and steering wheel are automati cally adjusted to allow the driver or
front passenger to enter an d exit the vehicle easily.
■Driver’s seat
When all of the following have been
performed, the driver’s seat and
steering wheel are automatically
adjusted to a position that allows
driver to enter and exit the vehicle
easily. • The shift lever has been shifted to P.
• The power switch has been turned off.
• The driver’s seat belt has been unfastened.
When any of the following has been perf ormed, the driver’s seat and steering
wheel automatically return to their original positions. • The power switch has been turned to ACCESSORY mode or ON mode.
• The driver’s seat belt has been fastened.
■Front passenger’s seat (if equipped)
If the front passenger’s door is open ed while the vehicle is stopped, the
adjusted lumbar support, side support (if equipped), etc. will return to its orig-
inal position.
■Operation of the power easy access system
When exiting the vehicle, the power easy ac cess system may not operate if the seat is
already close to the rearmost position, etc.
■Customization
The seat movement amount settings of th e power easy access system can be custom-
ized. (Customizable features: →P. 494)
This feature automatically adjusts the front seats, steering wheel and outside
rear view mirrors to make entering and exiting the vehicle easier or to suit
your preferences.
Power easy access system

146
GS450h_OM_OM30G62U_(U)
3-3. Adjusting the seats
Your preferred driving position (the position of the driver’s seat, steering wheel,
outside rear view mirrors and HUD [head-up display] [if equipped]) can be
recorded and recalled by pressing a button.
Three different driving positions can be recorded into memory.
■Recording procedure
Check that the shift lever is in P.
Turn the power switch to ON mode.
Adjust the driver’s seat, steering wh eel, outside rear view mirrors and HUD
(head-up display) (if equipped) 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
buzzer sounds.
If the selected button has already
been preset, the previously recorded
position will be overwritten.
Vehicles with the driving position me mory for the front passenger’s seat: To
record the position of the front passenger’s seat, adjust the front passenger’s
seat to the desired position and perfor m step using the buttons on the front
passenger’s side.
■Recall procedure
Check that the shift lever is in P.
Turn the power switch to ON mode.
Press one of the buttons for the
driving position you want to recall
until the buzzer sounds.
Driving position memory
1
2
3
4
4
1
2
3