Mazda 3 Owner's Manual page 80

Before Driving
Keys
Key Suspend Function
If a key is left in the vehicle, the
functions of the key left in the vehicle are
temporarily suspended to prevent theft of
the vehicle.
The following are inoperable:
Starting the engine using the push button
start.
(With the advanced keyless function)
Operating the request switches.
To restore these functions, perform any
one of the following:
Press a button on the key which has had
its functions temporarily suspended.
(Manual transaxle)
When carrying another key, depress the
clutch pedal until the KEY indicator
light (green) illuminates.
(Automatic transaxle)
When carrying another key, depress the
brake pedal until the KEY indicator light
(green) illuminates.
Refer to Warning/Indicator Lights on
page 4-40 .
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