ECO mode Lexus GS250 2012 Owner's Manual

8
GS350/250_EE (OM30C36E)
For your information
Please note that this manual applies to all models and explains all equipment,
including options. Therefore, you may find some explanations for equipment
not installed on your vehicle.
All specifications provided in this manual are current at the time of printing.
However, because of the Lexus policy of continual product improvement, we
reserve the right to make changes at any time without notice.
Depending on specifications, the vehicle shown in the illustrations may differ
from your vehicle in terms of color and equipment.
Both genuine Lexus and a wide variety of other spare parts and accessories
for Lexus vehicles are currently available on the market. Should it be deter-
mined that any of the genuine Lexus parts or accessories supplied with the
vehicle need to be replaced, Lexus recommends that genuine Lexus parts or
accessories, be used to replace them. Other parts or accessories of matching
quality can also be used. Lexus cannot accept any liability or guarantee spare
parts and accessories which are not genuine Lexus products, nor for replace-
ment or installation involving such parts. In addition, damage or performance
problems resulting from the use of non-genuine Lexus spare parts or accesso-
ries may not be covered under warranty.
Main Owner’s Manual
Accessories, spare parts and modification of your Lexus

351-1. For safe use
1
For safety and security
GS350/250_EE (OM30C36E)
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 difficult to stop the vehicle, leading to an accident, or leading to
death or a 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) pro-
vided.
Do not use two or more floor mats on top of each other.
Do not place the floor mat bottom-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 careful to perform this check
after cleaning the floor.
With the engine stopped and the shift
lever in P, fully depress each pedal to
the floor to make sure it does not inter-
fere with the floor mat.

871-2. Theft deterrent system
1
GS350/250_EE (OM30C36E)
For safety and security
Do one of the following to deactivate or stop the alarm:
Unlock the doors or open the trunk using the entry function or
wireless remote control.
Turn the engine switch to ACCESSORY or IGNITION ON
mode, or start the engine. (The alarm will be deactivated or
stopped after a few seconds.)
System maintenance
The vehicle has a maintenance-free type alarm system.
Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure of
the following:
Nobody is in the vehicle.
The windows and moon roof (if equipped) are closed before the alarm is
set.
No valuables or other personal items are left in the vehicle.
Deactivating or stopping the alarm

952. Instrument cluster
2
Instrument cluster
GS350/250_EE (OM30C36E)Warning lights inform the driver of malfunctions in the indicated
vehicle’s systems.
*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 malfunc-
tion in a system if the lights do not come on, or turn off. Have the vehicle
Warning lights
*1Brake system warning
light
(P. 749)*1, 2
(if
equipped)
“AFS OFF” indicator
(P. 751)
*1Charging system warn-
ing
light (P. 7 5 0 )*2Parking brake indicator
(P. 751)
*1Malfunction indicator
lamp (P. 750)*1Brake system warning
light (P. 7 5 1 )
*1SRS warning light
(P. 750)Open door warning light
(P. 752)
*1ABS warning light
(P. 750)Low fuel level warning
light (P. 7 5 2 )
*1Electric power steering
system warning light
(P. 751)Seat belt reminder light
(P. 752)
*1, 2
(if
equipped)
“PCS” warning light
(P. 751)
*1
Master warning light
(P. 752)
*1Slip indicator
(P. 751)*1Tire pressure warning
light
(P. 753)

982. Instrument cluster
GS350/250_EE (OM30C36E)
*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 malfunc-
tion in a system if the lights do not come on, or turn off. Have the vehicle
inspected by any authorized Lexus dealer or repairer, or another duly qual-
ified and equipped professional.
*2: The light flashes to indicate that the system is operating.
*3: The light comes on when the system is turned off. The light flashes faster
than usual to indicate that the system is operating.
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 could result in death
or serious injury. Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional
immediately if this occurs.

992. Instrument cluster
2
Instrument cluster
GS350/250_EE (OM30C36E)
Gauges and meters
The units used on the speedometer may differ depending on the target
region.
Engine coolant temperature gauge
Displays the engine coolant temperature
Tachometer
Displays the engine speed in revolutions per minute
ECO lamp and SPORT lamp
Changes colors according to driving mode
Multi-information display
Presents the driver with a variety of driving-related data (P. 102)
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. 214)
1
2
3
4
5
6
7

101
2 2. Instrument cluster
Instrument cluster
GS350/250_EE (OM30C36E)
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 (day-
time, etc.), turning on the tail lights will not change the instrument panel
brightness.
Limitation of brightness adjustment
The brightness of the instrument panel lights 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 either 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. 109) 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 130 km/h (80 mph) or below.
Customization
Settings (e.g. on/off operation of ECO lamp) can be changed.
(Customizable features P. 857)
NOTICE
To prevent damage to the engine and its components
Do not let the indicator needle of the tachometer enter the red zone, which
indicates 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. 829)

109
2 2. Instrument cluster
Instrument cluster
GS350/250_EE (OM30C36E)
System check display
After turning the engine switch to IGNITION ON mode, “SYSTEM
CHECK” is displayed 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. 326)
The vehicle speed is approximately 130 km/h (80 mph) or higher.
Outside temperature display
In the following situations, the correct outside temperature may not be dis-
played, or the display may take longer than normal to change.
When stopped, or driving at low speeds (less than 20 km/h [12 mph])
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 while 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
Indicator Zone Display blinks.
Zone of Eco driving
1
2

1273-2. Opening, closing and locking the doors and trunk
3
Operation of each component
GS350/250_EE (OM30C36E)
Alarms and warning indicators
An alarm sounds and warning message displays shown on the multi-informa-
tion display are used to protect against unexpected accidents or theft of the
vehicle resulting from erroneous operation. When a warning message is dis-
played, take appropriate measures based on the displayed message. (P.
757)
When only an alarm sounds, circumstances and correction procedures are as
follows.
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 engine switch was
turned to ACCES-
SORY mode while the
driver’s door was open
(or the driver’s door
was opened while the
engine switch was in
ACCESSORY mode).
Turn the engine switch
off and close the
driver’s door.

1313-2. Opening, closing and locking the doors and trunk
3
Operation of each component
GS350/250_EE (OM30C36E)
Note for the entry function
Even when the electronic key is within the effective range (detection areas),
the system may not operate properly in the following cases:
• The electronic key is too close to the window or outside door handle,
near the ground, or in a high place when the doors are locked or
unlocked.
• The electronic key is near the ground or in a high place, or too close to
the rear bumper center when the trunk is opened.
• The electronic key is on the instrument panel, rear package tray or floor,
or in the door pockets or glove box when the engine is started or engine
switch modes are changed.
Do not leave the electronic key on top of the instrument panel or near the
door pockets when exiting the vehicle. Depending on the radio wave recep-
tion conditions, it may be detected by the antenna outside the cabin and the
door will become lockable from the outside, possibly trapping the elec-
tronic key inside the vehicle.
As long as the electronic key is within the effective range, the doors may be
locked or unlocked by anyone. However, only the doors detecting the elec-
tronic key can be used to unlock the vehicle.
Even if the electronic key is not inside the vehicle, it may be possible to
start the engine if the electronic key is near the window.
The doors may unlock or lock if a large amount of water splashes on the
door handle, such as in the rain or in a car wash when the electronic key is
within the effective range. (The doors will automatically be locked after
approximately 30 seconds if the doors are not opened and closed.)
If the wireless remote control is used to lock the doors when the electronic
key is near the vehicle, there is a possibility that the door may not be
unlocked by the entry function. (Use the wireless remote control to unlock
the doors.)