2015 Lexus GS350 ignition

721-2. Theft deterrent system
GS350_OM_OM30E15U_(U)
Alarm
The alarm uses light and sound to give an alert when an intrusion is
detected.
The alarm is triggered in the following situations when the alarm is set:
●A locked door or trunk is unlocked or opened in any way other than
using the entry function, wireless remote control or mechanical key.
(The doors will lock again automatically.)
●The hood is opened.
Close the doors, trunk and hood,
and lock all the doors. The system
will be set automatically after 30
seconds.
The indicator light changes from
being on to flashing when the system
is set.
Do one of the following to deactivate or stop the alarms:
●Unlock the doors or open the trunk.
●Turn the engine switch to ACCE SSORY or IGNITION ON mode, or
start the engine. (The alarm will be deactivated or stopped after a few
seconds.)
The alarm
Setting the alarm system
Deactivating or stopping the alarm

78
GS350_OM_OM30E15U_(U)
2. Instrument cluster
*1: These lights turn on when the engine switch is turned to IGNITION ON mode to
indicate that a system check is being performed. They will turn off after the engine
is on, or after a few seconds. There may be a malfunction in a system if the lights
do not come on, or turn off. Have the vehicle inspected by your Lexus dealer.
*2: The light flashes to indicate a malfunction.
*2
(Canada)
Parking brake indicator
(  P. 4 7 2 )*1Seat belt reminder light
( P. 4 7 3 )
*1Brake system warning light
( P. 4 7 2 )*1Master warning light
( P. 4 7 3 )
*1
Open door warning light
( P. 4 7 3 )*1, 2
(if equipped)
“PCS” warning light
( P. 4 7 2 , 4 8 2 )
*1Low fuel level warning light
( P. 4 7 3 )*1Tire pressure warning light
( P. 4 74 )

80
GS350_OM_OM30E15U_(U)
2. Instrument cluster
*1: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’SMANUAL”.
*2: These lights turn on when the engine sw itch is turned to IGNITION ON mode to
indicate that a system check is being performed. They will turn off after the engine
is on, or after a few seconds. There may be a malfunction in a system if the lights
do not come on, or turn off. Have the vehicle inspected by your Lexus dealer.
*3: The light flashes to indicate that the system is operating.
*4: The light comes on when the system is turned off. The light flashes faster than
usual to indicate that the system is operating.
*5: In order to confirm operation, the BSM ou tside rear view mirror indicators illumi-
nate in the following situations:
• When the engine switch is turned to IGNITION ON mode while the BSM main switch is set to ON.
• When the BSM main switch is set to ON while the engine switch is in IGNI- TION ON mode.
If the system is functioning correctly, the BSM outside rear view mirror indicators
will turn off after a few seconds.
If the BSM outside rear view mirror indicato rs do not illuminate or do not turn off,
there may be a malfunction with the system.
If this occurs, have the vehicle inspected by your Lexus dealer.
CAUTION
■If a safety system warning light does not come on
Should a safety system light such as the ABS and SRS warning light not come on
when you start the engine, this could mean that these systems are not available to
help protect you in an accident, which coul d result in death or serious injury. Have
the vehicle inspected by your Lexus dealer immediately if this occurs.

GS350_OM_OM30E15U_(U)
832. Instrument cluster
2
Instrument cluster
■The meters and display illuminate when
The engine switch is in IGNITION ON mode.
■Instrument panel brightness adjustment
The instrument panel brightness levels when the tail lights are on and off can be
adjusted individually. However, when the surroundings are bright (daytime, etc.),
turning on the tail lights will not change th e instrument panel brightness. At this time,
any adjustments made to the instrument panel brightness levels will be applied to
both settings at once.
■Limitation of brightness adjustment
The brightness of the instrument panel ligh ts is automatically adjusted based on the
light sensor detecting how bright the surroundings are. However, if the instrument
panel brightness has been manually set to ei ther the brightest or darkest setting, the
automatic adjustment will not be performed.
■ECO lamp and SPORT lamp
●When sport mode is selected, SPORT lamp (red) will illuminate.
●When all of the following conditions are satisfied and Eco-friendly driving, ECO
lamp (blue) will illuminate. (ECO lamp will become brighter the more Eco-friendly
driving you perform. Also, while the acceleration exceeds Zone of Eco driving,
ECO lamp turns off. [P. 90] However, when Eco drive mode is selected, while
the acceleration exceeds Zone of Eco driving, ECO lamp does not turn off.):
• Driving with the shift lever in D
• Paddle shift switch is not operated.
• Either normal mode or Eco drive mode is selected.
• The vehicle speed is approximately 80 mph (130 km/h) or below.
■Customization
Settings (e.g. on/off operatio n of ECO lamp) can be changed.
(Customizable features: P. 5 6 1 )
NOTICE
■To prevent damage to the engine and its components
●Do not let the indicator needle of the tachometer enter the red zone, which indi-
cates the maximum engine speed.
●The engine may be overheating if the engine coolant temperature gauge is in the
red zone (H). In this case, immediately stop the vehicle in a safe place, and check
the engine after it has cooled completely. ( P. 5 2 9 )

90
GS350_OM_OM30E15U_(U)
2. Instrument cluster
■System check display
After turning the engine switch to IGNITION ON mode, “SYSTEM CHECK” is dis-
played while system operation is checked.
■Eco Driving Indicator Zone Display
Eco Driving Indicator will not operate in the following conditions:
●The shift lever is anything other than D.
●Paddle shift switch is operated.
●Neither normal mode nor Eco drive mode is selected. ( P. 2 4 4 )
●The vehicle speed is approximatel y 80 mph (130 km/h) or higher.
■Outside temperature display
In the following situations, the correct outside temperature may not be displayed, or
the display may take longer than normal to change.
●When stopped, or driving at low speeds (less than 12 mph [20 km/h])
●When the outside temperature has changed suddenly (at the entrance/exit of a
garage, tunnel, etc.)
■Setting display automatic cancelation
In the following situations, setting display in which the settings can be changed
through the “DISP” button will automatically be turned off.
●When a warning message appears whil e the setting display is displayed
●When the vehicle begins to move while the setting display is displayed
Suggests Zone of Eco driving and Eco driving
ratio based on acceleration.
Eco driving ratio based on acceleration
If the acceleration exceeds Zone of Eco
driving, the right side of Eco Driving Indica-
tor Zone Display blinks.
Zone of Eco driving
1
2

GS350_OM_OM30E15U_(U)
912. Instrument cluster
2
Instrument cluster
■Tire inflation pressure (if equipped)
●It may take a few minutes to display the tire inflation pressure after the engine
switch is turned to IGNITION ON mode. It may also take a few minutes to display
the tire inflation pressure after inflation pressure has been adjusted.
●“---” may be displayed if the tire information cannot be determined due to unfavor-
able radio wave conditions.
●Tire inflation pressure changes with temperature. The displayed values may also be
different from the values measured using a tire pressure gauge.
■Liquid crystal display
Small spots or light spots may appear on th e display. This phenomenon is character-
istic of liquid crystal displays, and there is no problem continuing to use the display.
■Customization
Setting of available languages can be changed. (Custo mizable features: P. 5 6 1 )
CAUTION
■The information display at low temperatures
Allow the interior of the vehicle to warm up before using the liquid crystal informa-
tion display. At extremely low temperatures, the information display monitor may
respond slowly, and display changes may be delayed.
For example, there is a lag between the dr iver’s shifting and the new gear number
appearing on the display. This lag could ca use the driver to downshift again, caus-
ing rapid and excessive engine braking and possibly an accident resulting in death
or injury.
■Cautions during setting up the display
As the engine needs to be running during setting up the display, ensure that the
vehicle is parked in a place with adequate ventilation. In a closed area such as a
garage, exhaust gases including harmful carbon monoxide (CO) may collect and
enter the vehicle. This may lead to death or a serious health hazard.
NOTICE
■During setting up the display
To prevent battery discharge, ensure that the engine is running while setting up the
display features.

98
GS350_OM_OM30E15U_(U)
2. Instrument cluster
■Head-up display
●The head-up display may seem dark and hard to see when viewed through sun-
glasses, especially polarized sunglasses.
Adjust the brightness of the head-up display or remove your sunglasses.
●When the head-up display is turned off, it will remain off even if the engine switch is
turned to IGNITION ON mode after th e engine switch has been turned off.
●The startup image will be displayed on the head-up display after the engine switch
has been turned to IGNITION ON mode wh ile the head-up display switch is set to
on.
■When the battery is disconnected
The customize settings of the head-up display will be reset.
CAUTION
■Before using the head-up display
Check that the position and brightness of the head-up display image does not
interfere with safe driving. Incorrect adjustment of the image’s position or bright-
ness may obstruct the driver’s view and lead to an accident, resulting in death or
serious injury.
NOTICE
■To prevent damage to components
●Do not place any drinks near the head-up
display projector. If the projector gets wet,
electrical malfunctions may result.
●Do not place anything on or put stickers
onto the head-up display projector.
Doing so could interrupt head-up display
indications.
●Do not touch the inside of the head-up dis-
play projector or thrust sharp edges or the
like into the projector.
Doing so could cause mechanical malfunc-
tions.

100
GS350_OM_OM30E15U_(U)
2. Instrument cluster
Press the “MENU” button on the Remote Touch, then select on the
“Menu” screen, and then select “Fuel Consumption”.
■Trip information
If the “Past Record” screen is di splayed, select “Trip Information”.
Resetting the consumption
data
Fuel consumption in the past
15 minutes
Current fuel consumption
Average vehicle speed since
the engine was started.
Elapsed time since the engine was started.
Cruising range ( P. 1 0 1 )
Average fuel consumption for the past 15 minutes is divided by color into past
averages and averages attained since the engine switch was last turned to
IGNITION ON mode. Use the displayed average fuel consumption as a ref-
erence.
The image is an example only, and may vary slightly from actual conditions.
Fuel consumption
1
2
3
4
5
6