lock Lexus IS250C 2012 Instrument cluster / LEXUS 2012 IS250C,IS350C (OM53A62U) Service Manual

64
1-3. Adjustable components (seats, mirrors, steering wheel)
■Canceling the linked door unlock operation
Close the driver's door and turn the “ENGINE START STOP” switch
OFF.
Using the wireless remote control: While pushing the “SET” button, press
on the wireless remote control until the signal beeps.
Using the door lock switch: While pressing the “SET” button, press the
lock or unlock side on the door lock switch until the signal beeps.
■Operating the driving position memory after turning the “ENGINE START
STOP” switch OFF
Memorized positions (except for the steering wheel positions) can be activated up
to 180 seconds after the driver's door is opened and another 60 seconds after it is
closed again, even after turning the “ENGINE START STOP” switch OFF.
■To cancel seat position recall
Perform any of the following operations.
●Push the “SET” button.
●Push button “1”, “2” or “3”.
●Adjust the seat using the switches (only cancels seat position recall).
■If the battery is disconnected
The memorized positions are erased when the battery is disconnected.
CAUTION
■Seat adjustment caution
Take care during seat adjustment that the seat does not strike the rear passenger or
child restraint system, or squeeze your body against the steering wheel.
STEP1
STEP2

67
1
1-3. Adjustable components (seats, mirrors, steering wheel)
Before driving
Head restraints
Head restraints are provided for all seats.
Vertical adjustment (front seats)Up
Pull the head restraints up.
Down
Push the head restraint down
while pushing the lock release
button.
Folding operation (rear seats)
Pull the lever.
When reversing etc., folding
down the head restraints
enables a better view of the area
behind the vehicle.
To return the head restraints,
raise them by hand.
Lock release button

68
1-3. Adjustable components (seats, mirrors, steering wheel)
■Removing the head restraints (front seats)
■Installing the head restraints (front seats)
■Adjusting the height of the head restraints (front seats)
Pull the head restraint up while pressing the
lock release button.
Align the head restraint with the installation
holes and push it down to the lock position.
Press and hold the lock release button when
lowering the head restraint.
Make sure that the head restraints are
adjusted so that the center of the head
restraint is closest to the top of your ears.

69
1-3. Adjustable components (seats, mirrors, steering wheel)
1
Before driving
CAUTION
Observe the following precautions when the head restraints are in use. Failure to do
so may result in death or serious injury.
■Front head restraints
●Use the head restraints design ed for each respective seat.
●Adjust the head restraints to the correct position at all times.
●After adjusting the head restraints, push down on them and make sure they are
locked in position.
●Do not drive with the head restraints removed.
■Rear head restraints
●Do not sit in the rear seats with the head restraints in the folded position.
●Do not fold the head restraints when pa ssengers are seated in the rear seats.
●Do not allow passengers to sit on the folded head restraints.
NOTICE
■Rear head restraints
Do not press down excessively on the folded head restraints as doing so may cause
damage.

72
1-3. Adjustable components (seats, mirrors, steering wheel)
Seat belt pretensioners (front seats)
The pretensioner helps the seat
belt to quickly restrain the occu-
pant by retracting the seat belt
when the vehicle is subjected to
certain types of severe frontal colli-
sion.
The pretensioner may not activate
in the event of a minor frontal
impact, a side impact or a rear
impact.
Pre-collision seat belts (front seats of vehicles with pre-collision system)
If the pre-collision sensor detects that a collision is unavoidable, the pre-
collision system will retract the seatbe lt, thus enhancing the effectiveness
of the seat belt pretensioner in a crash.
The same will happen if the driver ma kes an emergency braking or loses con-
trol of the vehicle. ( P. 2 2 7 )
■Emergency locking retractor (ELR)
The retractor will lock the belt during a sudd en stop or on impact. It may also lock if
you lean forward or pull out the belt too quickly. Allow the belt to fully retract, and
then slowly extend the belt. If the belt cannot be pulled out of the retractor, firmly
pull the belt and release it. You will then be able to smoothly pull the belt out of the
retractor.
■Automatic locking retractor (ALR)
When a passenger's shoulder belt is completely extended and then retracted even
slightly, the belt is locked in that position and cannot be extended. This feature is
used to hold the child restraint system (CRS) firmly. To free the belt again, fully
retract the belt and then pull the belt out once more. ( P. 1 2 7 )

75
1-3. Adjustable components (seats, mirrors, steering wheel)
1
Before driving
CAUTION
■Seat belt damage and wear
●Do not damage the seat belts by allowing the belt, plate, or buckle to be jammed
in the door.
●Inspect the seat belt system periodically. Check for cuts, fraying, and loose parts.
Do not use a damaged seat belt until it is replaced. Damaged seat belts cannot
protect an occupant from death or serious injury.
●Ensure that the belt and tab are locked and the belt is not twisted.
If the seat belt does not function correctly, immediately contact your Lexus
dealer.
●Replace the seat assembly, including the belt s, if your vehicle has been involved in
a serious accident, even if there's no obvious damage.
●Do not attempt to install, remove, modify, disassemble or dispose of the seat belts.
Have any necessary repairs carried out by your Lexus dealer. Inappropriate han-
dling of the pretensioner may prevent it from operating properly resulting in
death or serious injury.
■Using a seat belt extender
●Do not wear the seat belt extender if you can fasten the seat belt without the
extender.
●Do not use the seat belt extender when installing a child restraint system because
the belt will not securely hold the child restraint system, increasing the risk of
death or serious injury in the event of an accident.
●The personalized extender may not be safe on another vehicle, when used by
another person, or at a different seatin g position other than the one originally
intended.
NOTICE
■When using a seat belt extender
When releasing the seat belt, press on the buckle release button on the extender,
not on the seat belt.
This helps prevent damage to the vehi cle interior and the extender itself.

83
1-4. Opening and closing the windows and retractable hardtop
1
Before driving
Lock switchPress the switch down to lock the
passenger window switches.
Use this switch to prevent children
from accidentally opening or clos-
ing a passenger window.
■The power windows can be operated when
The “ENGINE START STOP” switch is in IGNITION ON mode.
■Door lock linked window operation
The power windows can be opened using the wireless remote control. ( P. 44)
■Front side window open/close function linked to rear side window operation
When a rear side window is opened, the adjacent front side window will also open
slightly. The front side window cannot be closed completely while the rear side win-
dow is open.
■Operating the power windows after turning the “ENGINE START STOP” switch
OFF
The power windows can be operated for ap proximately 45 seconds even after the
“ENGINE START STOP” switch is switched to ACCESSORY mode or turned
OFF. They cannot, however, be operated once either side door is opened.
■Jam protection function (front windows)
If an object becomes caught between the window and the body, window travel is
stopped and the window is opened slightly.

100
1-6. Theft deterrent system
Alarm
The system sounds the alarm and flashes the lights when forcible entry is
detected.
■ Triggering of the alarm
The alarm is triggered in the following situations when the alarm is
set.
●A locked door or trunk is unlocked or opened in any way other
than using the entry function, wi reless remote door lock function
or mechanical key.
● The hood is opened.
■ Setting the alarm system
If the retractable hardtop is
open, close it.
Close the doors, trunk and
hood, and lock both side doors.
The system will be set automati-
cally after 30 seconds.
The indicator light changes from
being on to flashing when the
system is set.
■Deactivating or stopping the alarm
Do one of the following to deactivate or stop the alarm.
●Unlock the doors or trunk using the entry function, wireless
remote door lock function or mechanical key.
● Turn the “ENGINE START STOP” switch to ACCESSORY or
IGNITION ON mode, or start the engine. (The alarm will be
deactivated or stopped after a few seconds.)

101
1-6. Theft deterrent system
1
Before driving
■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 retractable hardtop are closed before the alarm is set.
●No valuables or other personal items are left in the vehicle.
■Tr i g g e r i n g o f t h e a l a r m
The alarm may be triggered in the following situations.
Stopping the alarm deactivates the system.
●A person inside the vehicle opens a door,
the trunk or hood.
●The battery is recharged or replaced
when the vehicle is locked.

102
1-6. Theft deterrent system
■When the battery is disconnected
Be sure to deactivate the alarm system.
If the battery is disconnected before deactivating the alarm system, the alarm may
be triggered when the battery is reconnected.
■Alarm-operated door lock
●When the alarm is operating, the door s are locked automatically to prevent
intruders.
●Do not leave the key inside the vehicle when the alarm is operating, and make
sure the key is not inside the vehicle when recharging or replacing the battery.
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If mo dified or removed, the proper operation
of the system cannot be guaranteed.