2012 Lexus IS250 Using the air conditioning system and defogger / 2012 IS250,IS350 OWNERS MANUAL QUICK GUIDE (OM53A98U)

9
Smart Access System with Push-button Start
■Entering the vehicle
To unlock the vehicle, simply grasp either of the
front door handles.
■Exiting the vehicle
To lock the vehicle, press the lock button on either
of the front door handles.
■Opening the trunk
To open the trunk, press and hold the trunk
release 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 14.
For details on what to do when the electronic key does not operate properly, see page 75.

10
Theft Deterrent System
■Engine immobilizer system
The engine 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 ligh t flashes to indicate that
the system is set.
■ Alarm
The system sounds the alarm and flashes lights when forcible entry is detected.
To set the alarm: lock all the doors from outside the vehicle. The security indicator light
comes on to indicate that the alarm is in its 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 ACCESSORY
or IGNITION ON mode, start the engine by pressing the “ENGINE START STOP” switch,
or unlock the doors or trunk.
■ Steering lock
The steering wheel locks when the “ENGINE
START STOP” switch is OFF.
When the steering lock cannot be released, the
green indicator light on the “ENGINE START
STOP” switch will flash and a message will be
shown on the multi-information display. To release
it, gently turn the wheel left or right while pressing
the “ENGINE START STOP” switch.
The theft deterrent system includes the followi ng features to help protect your vehicle from
theft.

11
Seats (Manual)
■Adjusting seat position
With the lever raised, slide the seat forward or
backward.
■Adjusting seatback angle
With the lever raised, tilt the seatback forward or
backward.
■ Adjusting seat height
Raises the seat
Lowers the seat
■Adjusting the front of the seat cushion
Raises the front of the seat cushion
Lowers the front of the seat cushion
1
2
1
2

12
Seats (Power)
■Adjusting seat position
Moves the seat forward
Moves the seat backward
■Adjusting seatback angle
Tilts the seatback forward
Reclines the seatback
■Adjusting the seat cushion
Raises and lowers the front of the cushion
Raises and lowers the entire seat
■Adjusting the lumbar support (driver’s seat only)
Firmer
Softer
1
2
1
2
1
2
1
2

13
Head Restraints
■Vertical adjustment
To r a i s e : push the head restraint upward.
To lower (front and center rear seats) : push the
head restraint down while pressing the lock
release button.
To lower (outside rear seats) : push the head
restraint down.
■ Folding (outside rear seats only)
Pull the head restraint up while pressing the lock
release button.
Seat Belts
■Adjusting shoulder belt height (front seats only)
To r a i s e : pull the anchor upward.
To l o w e r : depress the button and push the anchor
down.
■ Seat belt comfort guides (outside rear seats only)
If the shoulder belt sits close to the neck, slide the
comfort guide forward.
Lock
release
button
Lock release button

14
Engine (ignition) Switch
■Starting the engine
Automatic transmission
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.
Manual transmission
Make sure the parking brake is engaged and the
shift lever is in N.
Depress the clutch 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 (for automatic transmission) or N
(for manual transmission).
Press the “ENGINE START STOP” switch.
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 or clutch pedal.
(The mechanical key cannot be used to start the engine.)

15
■Changing power modes
To change power modes without turning on the engine, press the “ENGINE START STOP”
switch without depressing the brake pedal (for automatic transmission) or the clutch pedal
(for manual transmission). The modes can be changed in the following order:
Automatic Transmission (If Equipped)
■ Shift positions
P Pa r k
R Reverse
N Neutral (drive not engaged)
D Drive
S S mode
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.
ACCESSORY mode IGNITION ON mode
(Indicator light: amber)
OFF
(Indicator light: off)

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■Changing shift ranges in the D position
Operating the shift paddle switches allows shift ranges to be selected to suit the driving con-
ditions.
Pull the “-” shift paddle switch toward you.The indicator in the meter cluster will dis-
play the selected shift range.
Higher shift range:
Pull the “+” shift paddle switch toward you.
Lower shift range:
Pull the “-” shift paddle switch toward you.
Pulling and holding the “+” shif t paddle switch for a certain pe riod of time allows you to
return to normal D position dr iving. If the accelerator pedal is depressed for more than a
certain period of time in one range, shift range selection in the D position will be automati-
cally deactivated.