Page 49 of 1014

491-1. For safe use
1
For safety and security
GS450h_300h_OM_OM30D53E_(EE)
CAUTION
SRS airbag precautions
SRS airbag precautions
Do not hang coat hangers or hard objects on the coat hooks. All of these
items could become projectiles and may cause death or serious injury,
should the SRS curtain shield airbags deploy.
If a vinyl cover is put on the area where the SRS knee airbag will deploy,
be sure to remove it.
Do not use seat accessories which cover the parts where the SRS side air-
bags inflate as they may interfere with inflation of the airbags. Such
accessories may prevent the side airbags from activating correctly, disable
the system or cause the side airbags to inflate accidentally, resulting in
death or serious injury.
Do not allow anyone to kneel on the
passenger seats toward the door or put
their head or hands outside the vehicle.
Do not attach anything to or lean any-
thing against areas such as the dash-
board, steering wheel pad, lower
portion of the instrument panel and
door of the glove box.
These items can become projectiles
when the SRS driver, front passenger
and knee airbags deploy.
Do not attach anything to areas such as a
door, windshield glass, side door glass,
front or rear pillar, roof side rail and
assist grip. (Except for the speed limit
sticker P. 896)
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 209 of 1014
2083-3. Adjusting the seats
GS450h_300h_OM_OM30D53E_(EE)
Adjusting the height of the head restraints
Adjusting the rear seat head restraint
Always raise the head restraint one level from the stowed position when
using. Make sure that the head restraints are
adjusted so that the center of the head
restraint is closest to the top of your ears.
CAUTION
Head restraint precautions
Observe the following precautions regarding the head restraints. Failure to
do so may result in death or serious injury.
Use the head restraints designed for each respective seat.
Adjust the head restraints to the correct position at all times.
After adjusting the head restraints, push down on them and make sure
they are locked in position.
Do not drive with the head restraints removed.
Page 506 of 1014
4885-2. Using the air conditioning system and defogger
GS450h_300h_OM_OM30D53E_(EE)
Disabling the switches on the rear armrest.
Select .
Rear seat heater switches (P.
704) are also locked.
Operates pollen removal mode
on/off.
Outside air mode switches to
(recirculated air) mode. Pol-
len is removed from the air and the
air flows to the upper part of the
body.
Usually the system will turn off
automatically after approximately
1 to 3 minutes.
Operates S-FLOW mode on/off.
When the S-FLOW mode button is
pressed, the airflow changes as fol-
lows.
Without rear air conditioning sys-
tem: Air flows to the front seats
only.
With rear air conditioning system:
Air flows to the front seats only,
and if the passenger seat is unoccu-
pied, the set temperature, outside
humidity and temperature inside
Pollen removal mode button
S-FLOW mode button
Page 750 of 1014

7266-1. Maintenance and care
GS450h_300h_OM_OM30D53E_(EE)
NOTICE
Cleaning detergents
Do not use the following types of detergent, as they may discolor the vehi-
cle interior or cause streaks or damage to painted surfaces:
• Non-seat portions: Organic substances such as benzene or gasoline,
alkaline or acidic solutions, dye, and bleach
• Seats: Alkaline or acidic solutions, such as thinner, benzene, and alco-
hol
Do not use polish wax or polish cleaner. The instrument panel’s or other
interior part’s painted surface may be damaged.
Preventing damage to leather surfaces
Observe the following precautions to avoid damage to and deterioration of
leather surfaces:
Remove any dust or dirt from leather surfaces immediately.
Do not expose the vehicle to direct sunlight for extended periods of time.
Park the vehicle in the shade, especially during summer.
Do not place items made of vinyl, plastic, or containing wax on the uphol-
stery, as they may stick to the leather surface if the vehicle interior heats
up significantly.
Water on the floor
Do not wash the vehicle floor with water.
Vehicle systems such as the audio system may be damaged if water comes
into contact with electrical components such as the audio system above or
under the floor of the vehicle. Water may also cause the body to rust.