Items To Check Before Locking The Vehicle - Lexus IS250 2009 Service Manual

1-6. Theft deterrent 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
following.
Nobody is in the vehicle.
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The windows and moon roof are closed before the alarm is set.
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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 system.
A person inside the vehicle opens a door, the trunk or hood.
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The battery is recharged or replaced when the vehicle is locked.
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When the battery is disconnected
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Be sure to deactivate the alarm system.
If the battery is disconnected before deactivating the alarm system, the alarm may
be triggered when the battery is reconnected.
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