trunk Lexus GS300h 2013 Repair Manual

1893-2. Opening, closing and locking the doors and trunk
3
Operation of each component
GS450h_300h_OM_OM30D53E_(EE)
Trunk light
The trunk light turns on when the trunk is opened.
Trunk easy closer (vehicles with power trunk lid)
In the event that the trunk lid is left slightly open, the trunk easy closer will
automatically close it to the fully closed position.
Function to prevent the trunk being locked with the electronic key inside
When all doors are being locked, closing the trunk lid with the electronic
key left inside the trunk will sound an alarm.
In this case, the trunk lid can be opened pressing the trunk release button on
the trunk lid.
Even when the spare electronic key is put in the trunk with all the doors
locked, the key confinement prevention function can be activated so the
trunk can be opened. In order to prevent theft, take all electronic keys with
you when leaving the vehicle.
Even when the electronic key is put in the trunk with all the doors are
locked, the key may not be detected depending on the places and the sur-
rounding radio wave conditions. In this case, the key confinement preven-
tion function cannot be activated, causing the doors to lock when the trunk
is closed. Make sure to check where the key is before closing the trunk.
The key confinement prevention function cannot be activated if any one of
the doors is unlocked. In this case, open the trunk using the trunk opener.
Overload protection function (vehicles with power trunk lid)
The trunk lid will not operate when excessive load is present on the top of the
trunk lid.
Fall-down protection function (vehicles with power trunk lid)
While the trunk lid is opening automatically, applying excessive force to it
will stop the opening operation to prevent the trunk lid from rapidly falling
down.

1903-2. Opening, closing and locking the doors and trunk
GS450h_300h_OM_OM30D53E_(EE)
Jam protection function (vehicles with power trunk lid)
While the trunk lid is closing automatically, the trunk lid will stop closing
and open if something gets caught.
Using the mechanical key
The trunk can be also opened using the mechanical key. (P. 909)
When leaving a key to the vehicle with a parking attendant
P. 1 4 0
Customization
The trunk unlocking operation can be changed.
(Customizable features: P. 945)
CAUTION
Observe the following precautions.
Failure to do so may result in death or serious injury.
Before driving
Make sure that the trunk lid is fully closed. If the trunk lid is not fully
closed, it may open unexpectedly while driving and hit near-by objects or
luggage in the trunk may be thrown out, causing an accident.
Do not allow children to play in the trunk.
If a child is accidentally locked in the trunk, they could suffer from heat
exhaustion, suffocation or other injuries.
Do not allow a child to open or close the trunk lid.
Doing so may cause the trunk lid to open unexpectedly, or cause the
child’s hands, head, or neck to be caught by the closing trunk lid.
Important points while driving
Never let anyone sit in the trunk. In the event of sudden braking or a colli-
sion, they are susceptible to death or serious injury.

1913-2. Opening, closing and locking the doors and trunk
3
Operation of each component
GS450h_300h_OM_OM30D53E_(EE)
CAUTION
Using the trunk
Observe the following precautions.
Failure to do so may cause parts of the body to be caught, resulting in seri-
ous injury.
Remove any heavy loads, such as snow and ice, from the trunk lid before
opening it. Failure to do so may cause the trunk lid to suddenly shut again
after it is opened.
When opening or closing the trunk lid, thoroughly check to make sure the
surrounding area is safe.
If anyone is in the vicinity, make sure they are safe and let them know that
the trunk is about to open or close.
Use caution when opening or closing the trunk lid in windy weather as it
may move abruptly in strong wind.
Do not attach any accessories other than genuine Lexus parts to the trunk
lid. Such additional weight on the trunk lid may cause the lid to suddenly
shut again after it is opened.
The trunk lid may suddenly shut if it is
not opened fully. It is more difficult to
open or close the trunk lid on an incline
than on a level surface, so beware of the
trunk lid unexpectedly opening or clos-
ing by itself. Make sure that the trunk
lid is fully open and secure before using
the trunk.
When closing the trunk lid, take extra
care to prevent your fingers etc. from
being caught.
When closing the trunk lid, make sure
to press it lightly on its outer surface. If
the trunk grip is used to fully close the
trunklid itmayresultinhandsorarms

1923-2. Opening, closing and locking the doors and trunk
GS450h_300h_OM_OM30D53E_(EE)
CAUTION
Trunk easy closer (vehicles with power trunk lid)
Power trunk lid (if equipped)
Observe the following precautions when operating the power trunk lid.
Failure to do so may cause serious injury.
Check the safety of the surrounding area to make sure there are no obsta-
cles or anything that could cause any of your belongings to get caught.
If anyone is in the vicinity, make sure they are safe and let them know that
the trunk is about to open or close.
If the trunk closer switch is pressed while the trunk lid is opening during
automatic operation, the trunk lid stops opening. Take extra care when on
an incline, as the trunk lid may open or close suddenly.
On an incline, the trunk lid may suddenly shut after it opens automatically.
Make sure the trunk lid is fully open and secure before using the trunk.
In the following situations, the power trunk lid may detect an abnormality
and automatic operation may be stopped. In this case, the trunk lid has to
be operated manually. Take extra care in this situation, as the stopped
trunk lid may suddenly shut, causing an accident.
• When the trunk lid contacts an obstacle
• When the 12-volt battery voltage suddenly drops, such as when the
power switch is turned to ON mode or the hybrid system is started
during automatic operation
Do not attach any accessories other than genuine Lexus parts to the trunk
lid. The power trunk lid may not operate, causing itself to malfunction, or
the trunk lid may suddenly shut again after it is opened.
In the event that the trunk lid is left
slightly open, the trunk easy closer will
automatically close it to the fully closed
position. It takes several seconds before
the trunk easy closer begins to operate.
Be careful not to catch fingers or any-
thing else in the trunk lid, as this may
cause bone fractures or other serious

1933-2. Opening, closing and locking the doors and trunk
3
Operation of each component
GS450h_300h_OM_OM30D53E_(EE)
CAUTION
Jam protection function (vehicles with power trunk lid)
Observe the following precautions.
Failure to do so may cause serious injury.
Never use any part of your body to intentionally activate the jam protec-
tion function.
The jam protection function may not work if something gets caught just
before the trunk lid fully closes. Be careful not to catch fingers or any-
thing else in the trunk lid.
The jam protection function may not work depending on the shape of the
object that is caught. Be careful not to catch fingers or anything else.
NOTICE
To prevent trunk easy closer malfunctions (vehicles with power trunk lid)
Do not apply force to the trunk lid while the trunk easy closer is operating.
To prevent damage to the power trunk lid (vehicles with power trunk lid)
Make sure that there is no luggage or snow on the trunk lid before operat-
ing the power trunk lid. In addition, make sure that there is no ice between
the trunk lid and frame that prevents movement of the trunk lid. Operating
the power trunk lid when excessive load is present on the trunk lid may
cause a malfunction.
Do not apply excessive force to the trunk lid while the power trunk lid is
operating.

2364-1. Before driving
GS450h_300h_OM_OM30D53E_(EE)
Cargo and luggage
Take notice of the following information about storage precau-
tions, cargo capacity and load:
CAUTION
Things that must not be carried in the trunk
The following things may cause a fire if loaded in the trunk:
Receptacles containing gasoline
Aerosol cans
Storage precautions
Observe the following precautions.
Failure to do so may prevent the pedals from being depressed properly, may
block the driver’s vision, or may result in items hitting the driver or passen-
gers, possibly causing an accident.
Stow cargo and luggage in the trunk whenever possible.
Do not place cargo or luggage in or on the following locations.
• At the feet of the driver
• On the front passenger or rear seats (when stacking items)
• On the package tray
• On the instrument panel
• On the dashboard
• In front of the Remote Touch screen
Secure all items in the occupant compartment.
Load and distribution
Do not overload your vehicle.
Do not apply loads unevenly.
Improper loading may cause deterioration of steering or braking control
which may cause death or serious injury.

2724-2. Driving procedures
GS450h_300h_OM_OM30D53E_(EE)
Brake Hold
Turns the brake hold system on
The brake hold standby indicator
(green) comes on. While the sys-
tem is holding the brake, the brake
hold operated indicator (yellow)
comes on.
Brake hold system operating conditions
The brake hold system cannot be turned on in the following conditions:
The trunk or hood is not closed.
The driver’s door is not closed.
The driver is not wearing the seat belt.
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 off. In addition, if any of the conditions are detected while the system
is holding the brake, a warning buzzer will sound and a message will be
shown on the 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 will be set automat-
ically. 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 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 vehicle. The system releases the brake when
the accelerator pedal is depressed with the shift lever in D or S to
allow smooth start off.

2754-3. Operating the lights and wipers
4
Driving
GS450h_300h_OM_OM30D53E_(EE)
Daytime running light system
To make your vehicle more visible to other drivers, the front position lights
turn on automatically whenever the hybrid system is started and the parking
brake is released. Daytime running lights are not designed for use at night.
Headlight control sensor
Automatic light off system
When the light switch is in : The headlights turn off automatically if the
power switch is turned to ACCESSORY mode or turned off.
When the light switch is in : The headlights and all lights turn off auto-
matically if the power switch is turned to ACCESSORY mode or turned off.
To turn the lights on again, turn the power switch to ON mode, or turn the
light switch off once and then back to or .
If any of the doors or trunk lid is kept open, the lights automatically turn off
after 20 minutes.
Light reminder buzzer
A buzzer sounds when the power switch is turned off or turned to ACCES-
SORY mode and the driver’s door is opened while the lights are turned on.
Automatic headlight leveling system
The level of the headlights is automatically adjusted according to the number
of passengers and the loading condition of the vehicle to ensure that the
headlights do not interfere with other road users. The sensor may not function properly if
an object is placed on the sensor, or any-
thing that blocks the sensor is affixed to
the windshield.
Doing so interferes with the sensor
detecting the level of ambient light and
may cause the automatic headlight system
to malfunction.

2964-4. Refueling
GS450h_300h_OM_OM30D53E_(EE)
When the fuel filler door cannot be opened by pressing the rearward of the
fuel filler door
Remove the cover inside the trunk and
pull the lever.

3174-5. Using the driving support system
4
Driving
GS450h_300h_OM_OM30D53E_(EE)
CAUTION
When the sensor may not be correctly detecting the vehicle ahead
Apply the brakes as necessary when any of the following types of vehicles
are in front of you.
As the sensor may not be able to correctly detect these types of vehicles, the
approach warning (P. 308) will not be activated, and a fatal or serious
accident may result.
Vehicles that cut in suddenly
Vehicles traveling at low speeds
Vehicles that are not moving
Vehicles with small rear ends (trailers with no load on board etc.)
Motorcycles traveling in the same lane
Conditions under which the vehicle-to-vehicle distance control may not
function correctly
Apply the brakes as necessary in the following conditions as the radar sen-
sor may not be able to correctly detect vehicles ahead, and a fatal or serious
accident may result:
When water or snow thrown up by a the surrounding vehicles hinders the
functioning of the sensor
When your vehicle is pointing upwards (caused by a heavy load in the
trunk etc.)
When the road curves or when the lanes are narrow
When steering wheel operation or your position in the lane is unstable
When the vehicle ahead of you decelerates suddenly