Garmin G1000 NXi Pilot's Manual page 245

Compensated
Altitudes
Cancelling temperature compensated altitude:
1) From the Active Flight Plan Page, press the MENU Key. The Page Menu is displayed.
2) Turn the FMS Knob to highlight 'Temperature Compensation'.
3) Press the ENT Key. The Temperature Compensation Window is displayed.
4) Press the ENT Key. 'Cancel Compensation?' is highlighted.
5) Press the ENT Key. The temperature compensated altitude at the FAF is cancelled.
Activating/cancelling temperature compensation for the loaded approach altitudes does not select/
NOTE:
deselect temperature compensated minimums (MDA/DH), nor does selecting/deselecting temperature
compensated minimums activate/cancel temperature compensated approach altitudes.
190-02177-00 Rev. A
Figure 5-81 Temperature Compensation in the Active Flight Plan
Garmin G1000 NXi Pilot's Guide for Cessna Nav III
FLIGHT MANAGEMENT
Uncompensated
Altitudes
231