Garmin G1000 Pilot's Manual page 633

ADDITIONAL FEATURES
Figure 8-116 Enter Security Code
7) Press the ENT Key. 'OK' will be highlighted.
8) Press the ENT Key again.
9) The SAVE SETTINGS window is now displayed with the cursor highlighting 'SAVE CONNECTION'.
Figure 8-117 Save Option
190-00962-04 Rev. A Garmin G1000 Pilot's Guide for the Diamond DA42NG 617