2010 Lexus IS 250 Owners Manual - Page 117

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1-2. Opening, closing and locking the doors and trunk

■

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.

■

Security feature

If a door is not opened within approximately 60 seconds after the vehicle is

unlocked, the anti-theft system automatically locks the vehicle again.

■

Alarms and warning indicators

A combination of exterior and interior alarms as well as warnings displayed on the

multi-information display are used to prevent theft of the vehicle and unforeseeable

accidents resulting from erroneous operation. Take appropriate measures in

response to any warning indications on the multi-information display. (

→

P. 478)

The following table describes circumstances and correction procedures when only

alarms are sounded.

Alarm

Situation

Correction procedure

Exterior alarm

sounds once for 2

seconds

Tried to lock the doors using

the entry function while the

electronic key is still inside

the passenger compartment

Retrieve the electronic

key from the passenger

compartment and lock

the doors again.

Closed the trunk while the

electronic key is still inside

and both side doors are

locked

Retrieve the electronic

key from the trunk and

close the trunk lid.

Exterior alarm

sounds once for 60

seconds

Tried to exit the vehicle with

the electronic key and lock

the doors without first turning

the “ENGINE START STOP”

switch OFF

Turn the “ENGINE

START STOP” switch

OFF and lock the doors

again.

Exterior alarm

sounds once for 10

seconds

Tried to lock the vehicle using

the entry function while a

door is open

Close all of the doors

and lock the doors

again.