Mazda MX-5 Owner's Manual page 260

When Driving
i-ACTIVSENSE
NOTE
When the ignition is switched off,
the condition before the system
was turned off is maintained.
For example, if the ignition is
switched OFF while the Blind
Spot Monitoring (BSM) and Rear
Cross Traf c Alert (RCTA) systems
are operational, the Blind Spot
Monitoring (BSM) and Rear Cross
Traf c Alert (RCTA) systems remain
operational the next time the ignition
is switched ON.
The Blind Spot Monitoring (BSM)
and Rear Cross Traf c Alert (RCTA)
systems are turned off when the
battery is disconnected such as
when the battery terminals or fuses
have been removed and re-installed.
To turn the Blind Spot Monitoring
(BSM) and Rear Cross Traf c Alert
(RCTA) systems back on, press
the Blind Spot Monitoring (BSM)
switch.
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