Lexus RX400h2006, Owner'S Manual

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KEYS AND DOORS
59
If the auxiliary battery becomes discharged due to the vehicle
being unused for a long time, etc., when the battery is
recharged or replaced, the system will give the alarm. If this
happens, immediately unlock any of the doors with the key or
the wireless remote control, and the alarm will stop.
If any door is unlocked and the ignition key is not in the ignition
switch during the alarm sounding, the door is automatically
locked.
To stop the alarm: Use either of the following methods.
Unlock the door using an ignition key or wireless remote
control.
Turn the ignition switch on.
Testing the system
1. Open all the windows.
2. Set the system as described above.
The side doors and back door should be locked with the ignition
key or wireless remote control. Be sure to wait until the
indicator light starts flashing.
3. Unlock one of the doors from the inside.
The system should activate the alarm.
4. Unlock any of the doors with a key or the wireless
remote control to cancel the system.
5. Repeat this operation for the other doors and hood.
When testing the hood, also check that the system is activated
when the terminal of the auxiliary battery is disconnected and
then reconnected.
If the system does not work properly, have it checked by your
Lexus dealer.