IFD400 Series Pilot Guide
6-24 General
Traffic sensor altitude unavailable
If the problem persists, contact a local dealer for service.
The aircraft is climbing through 250 feet below the transition
altitude xxx as defined in the Setup Page. The message is
displayed for 5 seconds and then removed. It will not be
enabled for display again until the aircraft has descended
more than 500 feet below the transition altitude.
The aircraft is descending through 250 feet above the
transition level xxx as defined in the Setup Page. The
message is displayed for 5 seconds and then removed. It
will not be enabled for display again until the aircraft has
climbed more than 500 feet above the transition level.
Unsupported Bluetooth Input - <f>
Bluetooth keyboard key <f> was pressed but is not
functional with the type of IFD being used.
UTC Time Mismatch. Please restart IFD
when possible
The internal clock does not match the time received from
the GPS. Power cycling the IFD will update the time.
Cross track error limit exceeded
Enroute VNAV is no longer available because the cross
track error exceeds 2NM.
Unsupported
Bluetooth Input