engine Lexus GS350 2008 Do-it-yourself maintenance / LEXUS 2008 GS460/350 QUICK GUIDE OWNER'S MANUAL (OM30B04U)

4
Quick_GS_G_U
January 29, 2008 5:02 pm
“ENGINE START STOP” switch P.21
Air conditioning system P.36
Emergency flashers P.24
Rear window and outside rear 
view mirror defoggers
P.33
Security indicator P.11
Audio system P.38
Glove box P.44
Trunk opener main switch P.54
See P.7
 : If equipped

Topic 1
Entering and Exiting
9
Quick_GS_G_U
January 29, 2008 5:04 pm
Keys
■Electronic key
● Locks and unlocks the doors
● Opens the trunk
● Starts and stops the engine
■Mechanical key
● Locks and unlocks the doors
● Opens the trunk
● Locks and unlocks the glove box
The mechanical key is stored inside the electronic
key. To extract the key, release the latch and pull.
■ Wireless remote control
Locks the doors
Unlocks the doors
Opens the trunk
Sounds the alarm
(To stop the alarm, push any button on the
wireless remote control.)1
2
3
4
The wireless remote control can also be used to open the windows and moon roof. 
To do so, simply press and hold button.

Topic 1
Entering and Exiting
10
Entering and Exiting
When Driving
Rain and
Night Driving
Driving Comfort
Opening and Closing
What to do if ...
Customizing Your Lexus
Before DrivingBefore Driving
Quick_GS_G_U
January 29, 2008 5:04 pm
Smart Access System with Push-button Start
■ Entering the vehicle
To unlock the vehicle, simply grasp the door han-
dle.
■Exiting the vehicle
To lock the vehicle, press the button on the door
handle.
■Opening the trunk
To open the trunk, press the button.
The smart access system with push-button start allows you to enter and exit the vehicle
or start the engine by simply carrying th e electronic key in your pocket or bag.
For details on starting the engine, see page 21.
For details on what to do when the electronic key does not operate properly, see page 58.

Topic 1
Entering and Exiting
11
Quick_GS_G_U
January 29, 2008 5:04 pm
Theft Deterrent System
■Immobilizer system
The immobilizer system prevents the engine from
being started in the event that an attempt is made
to start the vehicle using an unregistered key.
The security indicator light flashes to indicate that
the system is set.
■ Alarm
The system sounds the alarm and flashes light when an attempt to steal the vehicle is
detected.
To set the alarm: close the doors, trunk and hood, and lock all doors. The indicator light
comes on to indicate that the alarm is in it s preparation state. When the indicator light
begins to flash, the system is armed.
To deactivate or stop the alarm: turn the "ENGINE START STOP" switch to the ACCES-
SORY or IGNITION ON mode, or unlock the doors or trunk.
■ Steering lock
The steering lock is engaged when the driver’s
door is opened with the “ENGINE START STOP”
switch OFF.
The theft deterrent system includes the following features to help protect your vehicle from
theft.

Topic 2
Before Driving
18
Entering and Exiting
Before Driving
When Driving
Rain and
Night Driving
Driving Comfort
Opening and Closing
What to do if ...
Customizing Your Lexus
Quick_GS_G_U
January 29, 2008 5:04 pm
Inside Rear View Mirror
To turn auto mode on/off, press the auto button.
The indicator comes on when auto mode is
turned on.
Steering Wheel
Up
Down
Away from the driver
Toward the driver
Odometer/Trip Meter and Trip Meter Reset 
Buttons
Changes the display.
Resets the trip meter driving range to “0”.
The mirror uses a sensor to detect light from vehicles behind and automatically reduces glare.
1
2
3
4
The steering wheel retracts automatically when the “ENGINE START STOP” switch is
turned OFF to allow for easy exit and entry. The steering wheel returns automatically to its
previously set position when the “ENGINE START STOP” switch is switched to ACCES-
SORY or IGNITION ON mode.
1
2

Topic 3
When Driving
21
Quick_GS_G_U
May 15, 2008 12:07 pm
Starting
■Starting the engine
Make sure the parking brake is engaged and the
shift lever is in “P”.
Depress the brake pedal. The “ENGINE START STOP” switch indi-
cator light turns green.
Press the “ENGINE START STOP” switch.
■ Stopping the engine
Engage the parking brake and shift the shift lever to “P”.
Press the “ENGINE START STOP” switch.
■Changing “ENGINE START STOP” switch modes
To change “ENGINE START STOP” switch mode s without turning on the engine, press the
“ENGINE START STOP” switch without depres sing the brake pedal. The modes can be
changed in the following order:
With the electronic key on your person, the engine can be started by simply pressing the
“ENGINE START STOP” switch, while depressing the brake pedal.
(The mechanical key cannot be used to start the engine.)
ACCESSORY mode IGNITION ON mode
(Indicator light: amber)
OFF
(Indicator light: off)

Topic 3
When Driving
22
Entering and Exiting
Before DrivingBefore Driving
When Driving
Rain and
Night DrivingRain and
Night Driving
Driving Comfort
Opening and Closing
What to do if ...
Customizing Your Lexus
Quick_GS_G_U
May 15, 2008 12:07 pm
Automatic Transmission
■ Shift positions
P Pa r k *
R Reverse
N Neutral (drive not engaged)
D Drive
S “S” mode
*: The engine can only be started in “P”.
The vehicle can only be shifted out of “P” when the “ENGINE START STOP” switch is
in IGNITION ON mode and the brake pedal
is depressed.
■ “S” mode
“S” mode allows the driver to select the shift range manually based on driving conditions.
Shift the shift lever to “S”.
To u p s h i f t : shift the shift lever toward “+”.
To d o w n s h i f t : shift the shift lever toward “-”.
The selected shift range is displayed on the
instrument cluster.
Parking Brake
To s e t : firmly depress the parking brake pedal.
To r e l e a s e : depress the parking brake pedal
again.

Topic 4
Rain and Night Driving
33
Quick_GS_G_U
May 15, 2008 12:54 pm
Headlight Cleaner (If Equipped)
The headlight cleaner can be used only when the
“ENGINE START STOP” switch is in IGNITION
ON mode and the headlights are on.
Rear Window and Outside Rear View 
Mirror Defoggers
To defog the rear window and outside mirrors,
press the button.
Press again to cancel.

Instrument Panel Light Control
Brighter
Darker
Maximum brightness
Changes the cluster glass tint
The system turns off automatically after 15 minutes.
1
2
3
4

58
Entering and Exiting
Before Driving
When Driving
Rain and
Night Driving
Driving Comfort
Opening and Closing
What to do if ...
Customizing Your Lexus
Quick_GS_G_U
December 3, 2007 7:01 pm
If the electronic key does not operate properly
■ Unlocking and locking the doors
To unlock or lock the vehicle, use the mechanical
key. The mechanical key is stored inside the elec-
tronic key.
Unlocks
Locks
■Starting the engine
Depress the brake pedal.
Touch the Lexus emblem side of the electronic
key to the “ENGINE START STOP” switch.
Press the “ENGINE START STOP” switch
within 10 seconds after the buzzer sounds,
keeping the brake pedal depressed.
1
2
If the electronic key battery becomes depleted, replace it with a new battery. For instruc-
tions on replacing the battery, refer to the Ow ner’s Manual. If you need further assistance,
contact your Lexus dealer.

What to do if ...
59
Quick_GS_G_U
December 3, 2007 7:01 pm
If the engine does not start
Make sure that the correct operating procedures have been followed.Make sure that the brake pedal is firmly
depressed when attempting to start the engine.
( P. 2 1 )
u
Make sure that the steering lock is released.
To release the steering lock, gently turn the wheel
left or right while pressing the “ENGINE START
STOP” switch. ( P.1 1 )
Brake pedal
Steering lock
If the engine still does not st art, see the Owner’s Manual fo r more information or contact
your Lexus dealer.