TATA Motors Indigo eCS Owner's Manual & Service Book page 40

BEFORE DRIVING
c) If no door is opened, immobilizer will automatically
arm within 5 mins.
d) After receiving unlock command, if door open /key in/
ignition on is not sensed by ECU, immobilizer will
automatically arm within 5 mins. of unlock button press.
In any of the above cases (a) and (b), only the engine
immobiliser will auto arm. The instrument cluster LED
will start blinking. And there will be no automatic locking
of doors or automatic of alarm in these cases.
To start the vehicle press Unlock push-button of remote
unit from outside the vehicle or after switching ON the
Ignition.
5. Auto Locking / Unlocking of doors
When the vehicle is started, every time the Ignition key
returns from "Crank Position" to the "Ignition ON
Position", all doors get locked after approx. 5 seconds
(only doors get locked, no immobilization takes place).
As soon as the Ignition is switched OFF, all doors unlock
automatically.
6. Open Door Sensing
i. When door is locked manually from driver door, if any
door is open, then the driver door knob will spring back
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ELECTRICAL SECURITY SYSTEM
to unlock position immediately and rest of doors will
not lock.
ii. When locking is done through remote, if any door is
open, the system will go into panic state (alarm mode).
In this condition to stop the alarm, the user has to press
Unlock push-button of the remote once. The audio alarm
will stop, all doors will unlock and system will disarm.
Now close all the doors properly and press Lock push-
button of remote to lock the vehicle and arm the sytem.
7. Prevention of Remote Battery Discharge
In case any push push-button of the remote is
accidentally pressed for more than 25 seconds, the
Remote stops functioning till the time the push-button
is pressed. The LED on the Remote also stops glowing.
The function of the remote gets reinstated immediately
when the user stops pressing the push-button of remote.
Note : In case of Learning of new remotes, wherein the
push-button has to be pressed for a longer duration than
25 seconds (till the instrument cluster LED goes OFF),
stop pressing the push-button as soon as the LED on
the remote stops glowing and immediately press again
till the instrument cluster LED goes OFF.