Garmin GPS 400 - Manual (Page 223)

GPS 400 Pilot’s Guide and Reference 190-00140-60 Rev. H
SECTION 12 – MESSAGES,
ABBREVIATIONS, & NAV TERMS
12-7
Message Description
Waypoint memory is
full All 1000 user waypoint locations in the GPS 400’s memory have been used. Delete
unwanted waypoints to make room for new entries.