2012 Lexus GS350 check engine

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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
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1182. Instrument cluster
GS350/250_EE (OM30C36E)
Head-up display
The head-up display may seem dark and hard to see when viewed through
sunglasses, 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 the engine switch has been
turned off.
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 brightness may obstruct the driver’s view and lead to an accident, result-
ing 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 dis-
play indications.
Do not touch the inside of the head-up
display projector or thrust sharp edges
or the like into the projector.
Doing so could cause mechanical mal-

1553-2. Opening, closing and locking the doors and trunk
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Operation of each component
GS350/250_EE (OM30C36E)
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 fall 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 fall, causing an accident.
• When the trunk lid contacts an obstacle
• When the battery voltage suddenly drops, such as when the engine
switch is turned to IGNITION ON mode or the engine 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 fall closed 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

1623-3. Adjusting the seats
GS350/250_EE (OM30C36E)
Driving position memory
Check that the shift lever is in P.
Turn the engine switch to IGNITION ON mode.
Adjust the driver’s seat, steering wheel, and outside rear view
mirrors to the desired positions. (When memorizing the front
passenger’s seat, adjust the front passenger’s seat to the desired
positions.)
While pressing the “SET” but-
ton, or within 3 seconds after
the “SET” button is pressed,
press button “1”, “2” or “3”
until the signal beeps.
If the selected button has already
been preset, the previously
recorded position will be overwrit-
ten.
Your preferred driving position (the position of the driver’s seat,
steering wheel and outside rear view mirrors) can be memorized
and recalled by pressing a button. It is also possible to set this func-
tion to activate automatically when the doors are unlocked.
Three different driving positions can be entered into memory.
The same buttons are found on the front passenger’s side, allowing
the position of the front passenger’s seat to be memorized (if
equipped).
Entering a position to memory
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1633-3. Adjusting the seats
3
Operation of each component
GS350/250_EE (OM30C36E)Check that the shift lever is in P.
Turn the engine switch to IGNITION ON mode.
Press button “1”, “2” or “3” to
recall the desired position.
Vehicles with front passenger’s
seat calf support:
The memorized position will only
be recalled if the calf support is in
a position higher than the memo-
rized position. It will not move in
an upward direction.
When you want to stop the position recall operation part-way through
Perform any of the following operations:
Press the “SET” button.
Press button “1”, “2” or “3”.
Adjust the seat using the switches (only cancels seat position recall).
The adjusted positions that can be memorized
Vehicles without seatback side support adjustment switch
The adjusted positions other than the position adjusted by lumber support
switch can be memorized.
Vehicles with seatback side support adjustment switch
All adjusted positions can be memorized.
Automatic calf support adjustment
While the memorized position is being recalled, if it appears that the front
edge of the cushion will make contact with the area surrounding the instru-
ment panel, the calf support will be automatically stowed.
Recalling the memorized position
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1803-5. Opening, closing the windows and moon roof
GS350/250_EE (OM30C36E)
Door lock linked window operation
The power windows can be opened and closed using the mechanical key.*
(P. 821)
The power windows can be opened and closed using the wireless remote
control.
* (P. 141)
*: These settings must be customized at any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
When the battery is disconnected
The window lock switch is disabled. If necessary, press the window lock
switch after reconnecting the battery.
Power windows open warning buzzer
The buzzer sounds and a message is shown on the multi-information display
in the instrument cluster when the engine 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. 855)
CAUTION
Observe the following precautions.
Failure to do so may result in death or serious injury.
Closing the windows
Check to make sure that all passengers do not have any part of their body
in a position where it could be caught when a window is being operated.
Do not allow children to operate the power windows.
Closing a power window on someone can cause serious injury, and in
some instances, even death.
Jam protection function
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 window fully closes.

1843-5. Opening, closing the windows and moon roof
GS350/250_EE (OM30C36E)
Moon roof open warning buzzer
The buzzer sounds and a message is shown on the multi-information display
in the instrument cluster when the engine 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. 855)
CAUTION
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 vehi-
cle while it is moving.
Do not sit on top of the moon roof.
Closing the moon roof
Check to make sure that all passengers do not have any part of their body
in a position where it could be caught when the moon roof is being oper-
ated.
Do not allow children to operate the moon roof.
Closing the moon roof on someone can cause death or serious injury.
Jam protection function
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 moon roof fully closes.

1914-1. Before driving
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Driving
GS350/250_EE (OM30C36E)
CAUTION
Observe the following precautions.
Failure to do so may result in death or serious injury.
When driving the vehicle
During normal driving, do not turn off the engine. Turning the engine off
while driving will not cause loss of steering or braking control, but the
power assist to these systems will be lost. This will make it more difficult
to steer and brake, so you should pull over and stop the vehicle as soon as
it is safe to do so.
However, in the event of an emergency, such as if it becomes impossible
to stop the vehicle in the normal way: P. 7 3 9
Use engine braking (downshift) to maintain a safe speed when driving
down a steep hill.
Using the brakes continuously may cause the brakes to overheat and lose
effectiveness. (P. 214)
Do not adjust the positions of the steering wheel, the seat, or the inside or
outside rear view mirrors while driving.
Doing so may result in a loss of vehicle control.
Always check that all passengers’ arms, heads or other parts of their body
are not outside the vehicle.
When driving on slippery road surfaces
Sudden braking, acceleration and steering may cause tire slippage and
reduce your ability to control the vehicle.
Sudden acceleration, engine braking due to shift changing, or changes in
engine speed could cause the vehicle to skid.
After driving through a puddle, lightly depress the brake pedal to make
sure that the brakes are functioning properly. Wet brake pads may prevent
the brakes from functioning properly. If the brakes on only one side are
wet and not functioning properly, steering control may be affected.