Mazda 2012 CX-9 Owner's Manual page 134

Knowing Your Mazda
Security System
NOTE
The advanced keys (including auxiliary key)
l
carry a unique electronic code. For this
reason, and to assure your safety, obtaining
a replacement advanced key (including
auxiliary key) requires some waiting time.
They are only available through an
Authorized Mazda Dealer.
Always keep a spare advanced key in case
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one is lost. If an advanced key is lost,
consult an Authorized Mazda Dealer as
soon as possible.
If you lose an advanced key (including
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auxiliary key), an Authorized Mazda Dealer
will reset the electronic codes of your
remaining advanced keys (including
auxiliary keys) and immobilizer system.
Bring all the remaining advanced keys
(including auxiliary keys) to an Authorized
Mazda Dealer to reset.
Starting the vehicle with a key that has not
been reset is not possible.
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