Nothing to worry about - it means that currently your vehicle has two
keyfob transponders associated with it.  Not knowing the year of your
vehicle, I can't tell you exactly what you did to get this message, but
on my 2002 9-3, if I push the "trunk release" button while the key is
in the ignition (maybe just when it's on ACC or ON, I can't remember),
this displays.

Useful when test driving a used vehicle, it will tell you if there's
anyone out there with a keyfob that can open your vehicle!