Alarm System Maintenance; Items To Check Before Locking The Vehicle; Triggering Of The Alarm; Alarm-Operated Door Lock - Lexus rx450h Service Manual

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1-4. Theft deterrent system
System maintenance
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The vehicle has a maintenance-free type alarm system.

Items to check before locking the vehicle

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To prevent unexpected triggering of the alarm and vehicle theft, make sure of the follow-
ing:
Nobody is in the vehicle.
●
The windows and moon roof or panoramic moon roof are closed before the alarm is
●
set.
No valuables or other personal items are left in the vehicle.
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Triggering of the alarm

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The alarm may be triggered in the following situations:
(Stopping the alarm deactivates the alarm system.)
A person inside the vehicle opens a door or
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hood, or unlocks the vehicle.
The 12-volt battery is recharged or replaced
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when the vehicle is locked. (P. 570)

Alarm-operated door lock

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In the following cases, depending on the situation, the door may automatically lock to
prevent improper entry into the vehicle:
When a person remaining in the vehicle unlocks the door and the alarm is activated.
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While the alarm is activated, a person remaining in the vehicle unlocks the door.
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When recharging or replacing the 12-volt battery
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NOTICE
To ensure the system operates correctly
■
Do not modify or remove the system. If modified or removed, the proper operation of
the system cannot be guaranteed.
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