Page 119 of 573

1183-2. Opening, closing and locking the doors and trunk
IS350/250_U (OM53758U)
■When the vehicle is not driven for extended periods
●To prevent theft of the vehicle, do not leave the electronic key within 6 ft. (2 m) of the
vehicle.
●The smart access system with push-button start can be deactivated in advance.
( P. 5 2 5 )
■To operate the system properly
●Make sure to carry the electronic key when operating the system. Do not get the elec-
tronic key too close to the vehicle when op erating the system from the outside of the
vehicle.
Depending on the position and holding condit ion of the electronic key, the key may not
be detected correctly and the system may no t operate properly. (The alarm may go off
accidentally, or the door lock prev ention function may not operate.)
●Do not leave the electronic key inside the luggage compartment.
The key confinement prevention function ma y not operate, depending on the location
of the key (close to a spare tire, the inside edge of the luggage compartment), condi-
tions (inside a metal bag, close to metallic objects) and the radio waves in the surround-
ing area. ( P. 111)
■If the smart access system with push-button start does not operate properly
●Locking and unlocking the doors and open ing the trunk: Use the mechanical key.
( P. 4 8 8 )
●Starting the engine: P. 4 8 9
■Customization
Settings (e. g. smart access system with push-button start) can be changed.
(Customizable features: P. 5 2 5 )
■If the smart access system with push-butto n start has been deactivated in a customized
setting
●Locking and unlocking the d oors and opening the trunk:
Use the wireless remote control or mechanical key. ( P. 103, 109, 488)
●Starting the engine and changing engine switch modes: P. 4 8 9
●Stopping the engine: P. 1 5 9
Page 126 of 573

1253-3. Adjusting the seats
3
Operation of each component
IS350/250_U (OM53758U)
A desired driving position can be recalled linked with the unlocking of the door.
■Setting procedure
Record your driving position to button “1”, “2” or “3” before performing the
following:
Carrying only the key (including the card key) to which you want to link the
driving position, shift the shift lever to P and then close the driver’s door.
If 2 or more keys are in the vehicle, the driving position cannot be linked prop-
erly.
Turn the engine switch to IGNITION ON mode and recall the position
which you want to link.
While pressing the button to
recall the position, press the
driver’s door lock switch (either
lock or unlock) until the buzzer
sounds.
The driving position is recalled when
the driver’s door is unlocked using
the entry function or wireless remote
control and the driver’s door is
opened.
■Cancelation procedure
Carry only the key for which you want to cancel the linked door unlock opera-
tion.
If 2 or more keys are in the vehicle, the driving position cannot be canceled
properly.
Turn the engine switch to IGNITION ON mode.
While pressing the “SET” button, press the driver’s door lock switch (either
lock or unlock) until the buzzer sounds.
Linking driving position memory with door unlock operation
1
2
1
2
Page 127 of 573

1263-3. Adjusting the seats
IS350/250_U (OM53758U)
■When driving position memory is linked with door unlock operation
If the driver’s door is opened, the driver’s seat will move toward the memorized position
but stop slightly beforehand to allow easy access to the vehicle.
Turning the engine switch to ACCESSORY or IGNITION ON mode, or fastening the
driver’s seat belt moves the seat fully into the memorized position.
■Operating the driving position memory after turning the engine switch off
Memorized seat positions can be activated up to 180 seconds after the driver’s door is
opened and another 60 seconds after it is closed again. Memorized steering wheel posi-
tion can be activated by pr essing the engine switch.
■Correct seat position
When the seat is in the most forward or mo st backward position, and the seat is being
moved in those directions, the system may not correctly recognize the current position
and the memorized position will not be correctly recalled.
■The auto away function for exiting
If the seat is already close to the rearmost position, the auto away function may not oper-
ate when the driver exits the vehicle.
■When the driving position is recalled by a memory linked door unlock operation
●Since each memorized driving position is regi stered to a specific electronic key, the
driving position recalled may be different depending on the carried key.
●When only doors other than the driver’s d oor are unlocked by the smart access system
with push-button start, the driving position will not be recalled. In this case, press a driv-
ing position memory button to recall the desired driving position.
■Customization
The distance that the driver’s seat moves b ackward during the auto away function can be
changed. (Customizable features: P. 5 2 5 )
CAUTION
■Seat adjustment caution
Take care during seat adjustment so that th e seat does not strike the rear passenger or
squeeze your body against the steering wheel.
Page 140 of 573

1393-5. Opening, closing the windows and moon roof
3
Operation of each component
IS350/250_U (OM53758U)
■Door lock linked window operation
●The power windows can be opened and closed using the mechanical key.*( P. 4 8 8 )
●The power windows can be opened us ing the wireless remote control.* ( P. 1 0 3 )
*: These settings must be customized at your Lexus dealer.
■When the battery is disconnected
The window lock switch is disabled. If nece ssary, 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 instru-
ment 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. 5 2 5 )
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 posi-
tion 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 intentio nally activate the jam protection function.
●The jam protection function may not work if something gets caught just before the
window fully closes.
Page 142 of 573

1413-5. Opening, closing the windows and moon roof
3
Operation of each component
IS350/250_U (OM53758U)
■The moon roof can be operated when
The engine switch is in IGNITION ON mode.
■Operating the moon roof after turning the engine off
The moon roof can be operated for approximately 45 seconds after the engine switch is
turned to ACCESSORY mode or turned off. It cannot, however, be operated once either
front door is opened.
■Jam protection function
If an object is detected between the moon roof and the frame while the moon roof is clos-
ing or tilting down, travel is stoppe d and the moon roof opens slightly.
■Sunshade
The sunshade can be opened and closed manually. However, the sunshade will open
automatically when the moon roof is opened.
■Door lock linked moon roof operation
●The moon roof can be opened and closed using the mechanical key.* ( P. 4 8 8 )
●The moon roof can be opened us ing the wireless remote control.* ( P. 1 0 3 )
*: These settings must be customized at your Lexus dealer.
Page 147 of 573

146
IS350/250_U (OM53758U)4-1. Before driving
P. 1 5 9
With the brake pedal depressed, shift the shift lever to D. ( P. 1 6 4 )
Release the parking brake. ( P. 1 7 2 )
Gradually release the brake pedal and gently depress the accelerator pedal
to accelerate the vehicle.
With the shift lever in D, depress the brake pedal.
If necessary, set the parking brake.
If the vehicle is to be stopped for an extended period of time, shift the shift lever to P or
N. ( P. 1 6 4 )
With the shift lever in D, depress the brake pedal.
Set the parking brake. ( P. 1 7 2 )
Shift the shift lever to P. ( P. 1 6 4 )
If parking on a hill, block the wheels as needed.
Press the engine switch to stop the engine.
Lock the door, making sure that you have the electronic key on your person.
Make sure that the parking brake is set and shift the shift lever to D.
Gently depress the accelerator pedal.
Release the parking brake.
Driving the vehicle
The following procedures should be observed to ensure safe driving:
Starting the engine
Driving
Stopping
Parking the vehicle
Starting off on a steep uphill
1
2
3
1
2
1
2
3
4
5
1
2
3
Page 160 of 573
159
4
Driving
IS350/250_U (OM53758U)4-2. Driving procedures
Check that the parking brake is set.
Check that the shift lever is in P.
Firmly depress the brake pedal.
and a message will be displayed on
the multi-information display.
If it is not displayed, the engine cannot be started.
Press the engine switch.
The engine will crank until it starts or for
up to 30 seconds, whichever is less.
Continue depressing the brake pedal
until the engine is completely started.
The engine can be started from any
engine switch mode.
Stop the vehicle.
Shift the shift lever to P.
Set the parking brake. ( P. 1 7 2 )
Press the engine switch.
Release the brake pedal and check that the display on the meters is off.
Engine (ignition) switch
Performing the following op erations when carrying the electronic key on your
person starts the engine or changes engine switch modes.
Starting the engine
1
2
3
4
Stopping the engine
1
2
3
4
5
Page 162 of 573

1614-2. Driving procedures
4
Driving
IS350/250_U (OM53758U)
■Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes or IGNITION ON
mode (the engine is not running) for more than an hour with the shift lever in P, the engine
switch will automatically turn off. However, this function cannot entirely prevent battery
discharge. Do not leave the vehicle with the engine switch in ACCESSORY or IGNI-
TION ON mode for long periods of ti me when the engine is not running.
■Electronic key battery depletion
P. 1 0 1
■Conditions affe cting operation
P. 116
■Notes for the entry function
P. 117
■If the engine does not start
●Check that the shift lever is securely set in P. The engine may not start if the shift lever is
displaced out of P.
●The engine immobilizer system may not have been deactivated. ( P. 6 9 )
Contact your Lexus dealer.
■Steering lock
After turning the engine switch off and opening and closing the doors, the steering wheel
will be locked due to the stee ring lock function. Operating the engine switch again auto-
matically cancels the steering lock.
■When the steering lock cannot be released
■Steering lock motor overheating prevention
To prevent the steering lock motor from over heating, operation of the motor may be sus-
pended if the engine is turned on and off repeat edly in a short period of time. In this case,
refrain from operating the engine switch. After about 10 seconds, the steering lock
motor will resume functioning. “Steering Lock active” will be displayed on the
multi-information display.
Check that the shift lever is in P. Press the
engine switch while turning the steering wheel
left and right.