2015 Lexus GS450h ECO mode

291-1. For safe use
GS450h_OM_OM30F70U_(U)
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For safety and security
CAUTION
Observe the following precautions.
Failure to do so may cause the driver’s floor mat to slip, possibly interfering with the
pedals while driving. An unexpectedly high speed may result or it may become diffi-
cult to stop the vehicle. This could lead to an accident, resulting in death or serious
injury.
■When installing the driver’s floor mat
●Do not use floor mats designed for other models or different model year vehicles,
even if they are Lexus Genuine floor mats.
●Only use floor mats designed for the driver’s seat.
●Always install the floor mat securely using the retaining hooks (clips) provided.
●Do not use two or more floor mats on top of each other.
●Do not place the floor mat bo ttom-side up or upside-down.
■Before driving
●Check that the floor mat is securely fixed in
the correct place with all the provided
retaining hooks (clips). Be especially care-
ful to perform this check after cleaning the
floor.
●With the hybrid system stopped and the
shift lever in P, fully depress each pedal to
the floor to make sure it does not interfere
with the floor mat.

831-3. Theft deterrent system
GS450h_OM_OM30F70U_(U)
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For safety and security
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 power switch to ACCESS ORY or ON mode, or start the
hybrid system. (The alarm will be deactivated or stopped after a few
seconds.)
The alarm
Setting the alarm system
Deactivating or stopping the alarm

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GS450h_OM_OM30F70U_(U)
2. Instrument cluster
*1: These lights turn on when the power switch is turned to ON mode to indicate that
a system check is being performed. They will turn off after the hybrid system is on,
or after a few seconds. There may be a ma lfunction 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. 505)*1Master warning light
( P. 5 0 6 )
*1
Brake system warning light
( P. 5 0 6 )*1, 2
(if equipped)
“PCS” warning light
( P. 504, 515)
Open door warning light
( P. 5 0 6 )*1
Slip indicator ( P. 505)
Low fuel level warning light
( P. 5 0 6 )*1Tire pressure warning light
( P. 5 0 7 )
Seat belt reminder light
( P. 5 0 6 )

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GS450h_OM_OM30F70U_(U)
2. Instrument cluster
*1: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’SMANUAL”.
*2: These lights turn on when the power switch is turned to ON mode to indicate that
a system check is being performed. They will turn off after the hybrid system is on,
or after a few seconds. There may be a ma lfunction 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 power switch is turned to ON mode while the BSM main switch is set
to ON.
• When the BSM main switch is set to ON while the power switch is in 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.
*5
(if equipped)
BSM (Blind Spot Monitor)
outside rear view mirror
indicators ( P. 300)*2“A I R B A G O N /
OFF” indicator
( P. 4 9 )
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 hybrid system, this co uld mean that these systems are not avail-
able to help protect you in an accident, wh ich could result in death or serious injury.
Have the vehicle inspected by your Lexus dealer immediately if this occurs.

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2. Instrument cluster
Engine coolant temperature gauge
Displays the engine coolant temperature
Hybrid System Indicator
Displays hybrid system output or regeneration level ( P. 9 4 )
ECO lamp and SPORT lamp
Changes colors or brightness according to driving mode or way of driving
( P. 9 5 )
Multi-information display
Presents the driver with a variety of driving-related data ( P. 9 6 )
Speedometer
Displays the vehicle speed
Fuel gauge
Displays the quantity of fuel remaining in the tank
Shift position and shift range
Displays the selected shift position or selected shift range ( P. 2 0 3 )
Odometer and trip meter display
Odometer:
Displays the total distance the vehicle has been driven
Tr i p m e t e r :
Displays the distance the vehicle has been driven since the meter was last reset.
Trip meters “A” and “B” can be used to record and display different distances inde-
pendently.
Tachometer
Displays the engine speed in revolutions per minute
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2
3
4
5
6
7
8
9

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2. Instrument cluster
■The meters and display illuminate when
The power switch is in 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.
■Hybrid System Indicator
●Hybrid System Indicator is displayed when the driving mode is other than the sport
mode.
●By keeping the indicator needle within Ec o area, more Eco-friendly driving can be
achieved.
●Charge area indicates regeneration* status. Regenerated energy will be used to
charge the battery.
*: When used in this manual, “regeneration” refers to the conversion of energy cre-
ated by the movement of the vehicle into electrical energy. Charge area
Shows regenerative charging.
Hybrid Eco area
Shows that gasoline engine power is not
being used very often.
The gasoline engine will automatically stop
and restart under various conditions.
Eco area
Shows that the vehicle is being driven in an
Eco-friendly manner.
Po w e r a r e a
Shows that an Eco-friendly driving range is
being exceeded (during full power driving
etc.)
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2
3
4

GS450h_OM_OM30F70U_(U)
952. Instrument cluster
2
Instrument cluster
■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 vehicle is stopped or the acceleration exceeds
Zone of Eco driving, ECO lamp turns off. [P. 9 4 ] H o w e v e r, w h e n E c o d r i v e
mode is selected, while the vehicle is stopped or 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.
■Tachometer
Hybrid System Indicator switches to the ta chometer when driving mode is in sport
mode.
■Engine speed
On hybrid vehicles, engine speed is precis ely controlled in order to help improve
fuel efficiency and reduce exhaust emissions etc.
There are times when the engine speed that is displayed may differ even when vehi-
cle operation and driving conditions are the same.
■Customization
Settings (e.g. on/off operatio n of ECO lamp) can be changed.
(Customizable features: P. 5 9 9 )
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. 566)

GS450h_OM_OM30F70U_(U)
1273-2. Opening, closing and locking the doors and trunk
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Operation of each component
■Alarms and warning indicators
An alarm sounds and warning message displays shown on the multi-information dis-
play are used to protect against unexpected accidents or theft of the vehicle result-
ing from erroneous operation. When a warning message is displayed, take
appropriate measures based on the displayed message. ( P. 5 3 4 )
When only an alarm sounds, circumstance s and correction procedures are as fol-
lows.
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
continuously
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.