Garmin G1000 NXi Pilot's Manual page 461

ADDITIONAL FEATURES
Figure 8-39 Text Messaging Page
Message Symbol Description
Received text message that has not been opened.
Received text message that has been opened.
Saved text message, draft not sent.
System is sending text message.
Text message has been sent.
System failed to send text message.
Predefined text message.
Table 8-4 Text Message Symbols
Garmin G1000 NXi Pilot's Guide for the Cessna NAV III
190-02177-02 Rev. A 441