Honda ACF110CBTR Owner's Manual page 54

Answer Back System
III CA type
Alarm/Answer
The answer back system is a device to find
back button
the location of your vehicle.
When the immobilizer is active and you press
the Alarm/Answer back button on the Honda
SMART Key with the ignition switch in the
(Off) or (Lock) position, the turn signals
light, the buzzer rings, informing you of your
vehicle's location.
The answer back system uses low-intensity
radio waves. It may affect medical equipment
such as a cardiac pacemaker.
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