Garmin G600 Pilot's Manual page 195

SafeTaxi Database is Current SafeTaxi Database has Expired
SafeTaxi Database Not Available
Figure 5-10 Power-up Page, SafeTaxi Database
The SafeTaxi Region, Version, Cycle, Effective date and Expires date of the
database cycle can also be found on the AUX - System Status page. SafeTaxi
information appears in white and yellow text. The EFFECTIVE date appears in
white when data is current and in yellow when the current date is before the
effective date. The EXPIRES date appears in white when data is current and in
yellow when expired. SafeTaxi REGION NOT AVAILABLE appears in white if
SafeTaxi data is not available on the database card. Expired SafeTaxi data is never
disabled.
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190-00601-02 Rev. B Garmin G600 Pilot's Guide