2015 Lexus GS300h warning

1202. Instrument cluster
GS450h_300h_OM_OM30F00E_(EE)
●Vehicle speed
●Hybrid System Indicator (→P. 1 2 3 )
●Tachometer
●Shift position and shift range
Displays the selected shift posi tion or selected shift range ( →P. 2 2 4 )
●Road signs recognized by the RS A (Road Sign Assist) (if equipped)
(→ P. 2 9 8 )
●Audio display*
Displays audio information for approximately 3 seconds when the audio system is
operated
●Route guidance display (vehicles with navigation system) ( →P. 1 2 3 )
When approaching an intersection while the navigation system is giving route guid-
ance, an arrow will automatically be displayed to indicate the direction of travel.
●Lane departure warning display (LDA [Lane Departure Alert with steering
control], LKA [Lane-Keeping Assist]) (if equipped) ( →P. 4 8 3 )
●Approach warning display (dynamic radar cruise control, dynamic radar
cruise control with full-speed range) (if equipped) ( →P. 4 8 3 )
●Pre-crash warning message (PCS [Pre-Crash Safety system])
(if equipped) ( →P. 4 8 2 )
*: The default setting is off
Head-up display contents

1543-2. Opening, closing and locking the doors and trunk
GS450h_300h_OM_OM30F00E_(EE)
■Alarms and warning indicators
An alarm sounds and warning message displays shown on the multi-information display
are used to protect against unexpected accidents or theft of the vehicle resulting from
erroneous operation. When a warning message is displayed, take appropriate measures
based on the displayed message. ( →P. 5 1 2 )
When only an alarm sounds, circumstances and correction procedures are as follows.
■Battery-saving function (vehicles with entry function)
The battery-saving function will be activated in order to prevent the electronic key bat-
tery and the 12-volt battery from being discha rged while the vehicle is not in operation
for a long time.
●In the following situations, the smart entry & start system may take some time to unlock
the doors.
• The electronic key has been left in an area of approximately 2 m (6 ft.) of the outside
of the vehicle for 10 minutes or longer.
• The smart entry & start system has not been used for 5 days or longer.
●If the smart entry & start system has not been used for 14 days or longer, the doors can-
not be unlocked at any doors except the driver’s door. In this case, take hold of the
driver’s door handle, or use the wireless remote control or the mechanical key, to
unlock the doors.
AlarmSituationCorrection procedure
Exterior alarm sounds
once for 5 seconds
The trunk was closed while
the electronic key was still
inside the trunk and all the
doors were locked.Retrieve the electronic key
from the trunk and close
the trunk lid.
An attempt was made to
lock the vehicle while a
door was open.Close all of the doors and
lock the doors again.
Interior alarm sounds con-
tinuously
The power switch was
turned to ACCESSORY
mode while the driver’s
door was open (or the
driver’s door was opened
while the power switch was
in ACCESSORY mode).
Turn the power switch off
and close the driver’s door.

1943-5. Opening, closing the windows and moon roof
GS450h_300h_OM_OM30F00E_(EE)
■When the window cannot be opened or closed
When the jam protection function or catch protection function operates unusually and
the door window cannot be opened or closed , perform the following operations with the
power window switch of that door.
●Stop the vehicle. With the power switch in ON mode, within 4 seconds of the jam pro-
tection function or catch protection func tion activating, continuously operate the
power window switch in the one-touch clos ing direction or one-touch opening direc-
tion so that the door window can be opened and closed.
●If the door window cannot be opened and closed even when performing the above
operations, perform the following pr ocedure for function initialization.
Turn the power switch to ON mode.
Pull and hold the power window switch in the one-touch closing direction and com-
pletely close the door window.
Release the power window switch for a moment, resume pulling the switch in the
one-touch closing direction, and hold it there for approximately 6 seconds or more.
Press and hold the power window switch in the one-touch opening direction. After
the door window is completely opened, cont inue holding the switch for an additional
1 second or more.
Release the power window switch for a mo ment, resume pushing the switch in the
one-touch opening direction, and hold it there for approximately 4 seconds or
more.
Pull and hold the power window switch in the one-touch closing direction again.
After the door window is completely clos ed, continue holding the switch for a fur-
ther 1 second or more.
If you release the switch while the window is moving, start again from the beginning.
If the window reverse and cannot be fully closed or opened, have the vehicle inspected
by any authorized Lexus dealer or repairer, or another duly qualified and equipped pro-
fessional.
■Door lock linked window operation
●The power windows can be opened and closed using the mechanical key.* ( → P. 5 4 8 )
●The power windows can be opened and closed using the wireless remote control.*(→ P. 1 3 9 )
*: These settings must be customized at any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
■When the 12-volt battery is disconnected
The window lock switch is disabled. If nece ssary, press the window lock switch after
reconnecting the 12-volt battery.
■Power windows open warning buzzer
The buzzer sounds and a message is shown on the multi-information display in the instru-
ment cluster when the power switch is turned off and the driver’s door is opened with the
power windows open.
■Customization
Settings (e.g. linked door lock operation) can be changed.
(Customizable features: →P. 5 8 1 )
1
2
3
4
5
6

1983-5. Opening, closing the windows and moon roof
GS450h_300h_OM_OM30F00E_(EE)
■Moon roof open warning buzzer
The buzzer sounds and a message is shown on the multi-information display in the instru-
ment cluster when the power switch is turned off and the driver’s door is opened with the
moon roof open.
■Customization
Settings (e.g. linked door lock operation) can be changed.
(Customizable features: →P. 5 8 1 )
WA R N I N G
Observe the following precautions.
Failure to do so may cause death or serious injury.
■Opening the moon roof
●Do not allow any passengers to put their hands or heads outside the vehicle while it is
moving.
●Do not sit on top of the moon roof.
■Closing the moon roof
●The driver is responsible for moon roof opening and closing operations.
In order to prevent accidental operation, especially by a child, do not let a child oper-
ate the moon roof. It is possible for children and other passengers to have body parts
caught in the moon roof.
●Check to make sure that all passengers do not have any part of their body in a posi-
tion where it could be caught when the moon roof is being operated.
●When using the wireless remote control or mechanical key and operating the moon
roof, operate the moon roof after checking to make sure that there is no possibility of
any passenger having any of their body parts caught in the moon roof. Also, do not let
a child operate moon roof by the wireless remote control or mechanical key. It is pos-
sible for children and other passengers to get caught in the moon roof.
●When exiting the vehicle, turn the power switch off, carry the key and exit the vehicle
along with the child. There may be accidental operation, due to mischief, etc., that
may possibly lead to an accident.
■Jam protection function
●Never use any part of your body to intent ionally activate the jam protection function.
●The jam protection function may not work if something gets caught just before the
moon roof fully closes.

2014-1. Before driving
4
Driving
GS450h_300h_OM_OM30F00E_(EE)
■When starting off on a uphill
The hill-start assist control is available. (→P. 3 4 5 )
■For fuel-efficient driving
Keep in mind that hybrid vehicles are similar to conventional vehicles, and it is necessary
to refrain from activities such as sudden acceleration, etc. Refer to “Hybrid vehicle driv-
ing tips”. ( →P. 3 5 1 )
■Driving in the rain
●Drive carefully when it is raining, becaus e visibility will be reduced, the windows may
become fogged-up, and the road will be slippery.
●Drive carefully when it starts to rain, beca use the road surface will be especially slip-
pery.
●Refrain from high speeds when driving on an expressway in the rain, because there may
be a layer of water between the tires and the road surface, preventing the steering and
brakes from operating properly.
■Restraining hybrid system output (Brake Override System)
●When the accelerator and brake pedals are depressed at the same time, the hybrid sys-
tem output may be restrained.
●A warning message is displayed on the mult i-information display while the system is
operating. ( →P. 5 0 3 )
■Restraining sudden start (Drive-Start Control)
●When the following unusual operation is performed, the hybrid system output may be
restrained.
• When the shift lever is shifted from R to D, D to R, N to R, P to D, or P to R (D
includes S) with the accelerator pedal depressed, a warning message appears on
the multi-information display. ( →P. 4 8 9 )
• When the accelerator pedal is depressed too much while the vehicle is in reverse.
●While Drive-Start Control is being activated, your vehicle may have trouble escaping
from the mud or fresh snow. In such case, deactivate TRC ( →P. 346) to cancel Drive-
Start Control so that the vehicle may become able to escape from the mud or fresh
snow.
■Breaking in your new Lexus
To extend the life of the vehicle, observing the following precautions is recommended:
●For the first 300 km (186 miles):
Avoid sudden stops.
●For the first 800 km (500 miles):
Do not tow a trailer.
●For the first 1000 km (621 miles):
• Do not drive at extremely high speeds.
• Avoid sudden acceleration.
• Do not drive continuously in low gears.
• Do not drive at a constant speed for extended periods.

2284-2. Driving procedures
GS450h_300h_OM_OM30F00E_(EE)
■Automatic deactivation of shift range selection in the D position
Shift range selection in the D position will be deactivated in the following situations:
●When the vehicle comes to a stop
●If the accelerator pedal is depressed for more than a certain period of time
●When the shift lever is shifted to other than D
■Downshifting restrictions warning buzzer
To help ensure safety and driving performance, downshifting operation may sometimes
be restricted. In some circumstances, downsh ifting may not be possible even when the
shift lever or paddle shift switch is operated. (A buzzer will sound twice.)
■Snow mode automatic deactivation
Snow mode is automatically deactivated if the power switch is turned off after driving in
snow mode.
■When driving with cruise control, dynamic radar cruise control or dynamic radar
cruise control with full-speed range activated
Even when performing the following actions with the intent of enabling engine braking,
engine braking will not activate because cruise control, dynamic radar cruise control or
dynamic radar cruise control with full-speed range will not be canceled.
●GS450h: While driving in the D position or S mode, downshifting to 7, 6, 5 or 4.
( → P. 303, 315, 327)
●GS300h: While driving in the D position, downshifting to 5 or 4. ( →P. 303, 315, 327)
●When switching the driving mode to sport mode while driving in D position. ( →P. 330)
■Restraining sudden start (Drive-Start Control)
●When the following unusual operation is performed, the engine output may be
restrained.
• When the shift lever is shifted from R to D, D to R, N to R, P to D, or P to R (D
includes S) with the accelerator pedal depressed, a warning message appears on
the multi-information display. ( →P. 4 8 2 )
• When the accelerator pedal is depressed too much while the vehicle is in reverse.
■If the shift lever cannot be shifted from P
→ P. 5 4 5
WA R N I N G
■When driving on slippery road surfaces
Be careful of downshifting and sudden acceler ation, as this could result in the vehicle
skidding to the side or spinning.

2324-2. Driving procedures
GS450h_300h_OM_OM30F00E_(EE)
■Parking brake operation
●When the power switch is not in ON mode, the parking brake cannot be released using
the parking brake switch.
●When the power switch is not in ON mode, automatic mode (automatic brake setting
and releasing) is not available.
●If the parking brake is operated repeatedly over a short period of time, the system may
restrict operation to prevent overheating. If this happens, refrain from operating the
parking brake. Normal operation will return after about 1 minute.
●Vehicles with towing package: In situations such as when parking while towing a trailer,
the maximum amount of braking force can be used by pressing the parking brake
switch with the parking brake already set.
●Vehicles without towing package: In situations such as when parking on a steep slope*,
the maximum amount of braking force can be used by pressing the parking brake
switch with the parking brake already set.
*: Use wheel chocks when parking on a steep slope.
■Parking brake operation sound
When the parking brake operates, a motor sound (whirring sound) may be heard. This
does not indicate a malfunction.
■Parking brake indicator light
●Depending on the power switch mode, the parking brake indicator light will come on
and stay on as described below:
ON mode: Comes on until the parking brake is released.
Not in ON mode: Stays on for approximately 15 seconds.
●When the power switch is turned off with the parking brake set, the parking brake indi-
cator light will stay on for about 15 seco nds. This does not indicate a malfunction.
■When there is a malfunction in the system
Warning lights and/or warning message will turn on or flash. (→P. 4 7 8 , 4 8 2 )
Depending on the condition, the park ing brake indicator light may flash.
■Parking brake engaged warning buzzer
→P. 4 8 8
■Usage in winter time
→P. 3 5 4

2334-2. Driving procedures
4
Driving
GS450h_300h_OM_OM30F00E_(EE)
NOTICE
■When parking the vehicle
Before you leave the vehicle, set the parking brake, shift the shift lever to P and make
sure that the vehicle does not move.
■When the system malfunctions
Stop the vehicle in a safe place and check the warning messages.
■When the parking brake cannot be released due to a malfunction
Use the parking brake release tool to manually release the parking brake. (→P. 5 4 6 )
Driving the vehicle with the parking brake set will lead to brake components overheat-
ing, which may affect braking performance and increase brake wear.