Lexus IS 250C 2014 Manual page 48

1-2. Opening, closing and locking the doors and trunk
Locking the doors from the outside without a key
The door cannot be locked if the "ENGINE START STOP" switch is in
ACCESSORY or IGNITION ON mode, or the electronic key is left
inside the vehicle.
Depending on the position of the electronic key, the key may not be detected
correctly and the door may be locked.
Automatic door locking and unlocking systems
The following functions can be set or cancelled:
Function
Shift position linked door
locking function
Shift position linked door
unlocking function
Speed linked door locking
function
Driver's door linked door
unlocking function
48
Operation
Shifting the shift lever out of P when the engine
is running locks both side doors.
Shifting the shift lever to P when the "ENGINE
START STOP" switch is in IGNITION ON
mode unlocks both side doors.
Both side doors are locked when the vehicle
speed is approximately 12 mph (20 km/h) or
higher.
Both side doors are unlocked when the driver's
door is opened within approximately 45 sec-
onds after turning the "ENGINE START STOP"
switch OFF.