Garmin G1000 Reference Manual page 83

Backcourse Mode (BC)
NOTe: When making a backcourse approach,
set the Selected Course to the localizer front
course.
Backcourse Mode captures and tracks a localizer
signal. The mode may be selected by pressing the BC
Key. Backcourse Mode is armed if the CDI is greater than
one dot when the mode is selected. The flight director
creates steering commands from the Selected Course and
deviation when in Backcourse Mode.
LOC2 is Selected Navigation Source
190-00384-09 Rev. A
Backcourse Pitch Hold
Mode Active Mode Active
Figure 6-25 Backcourse Mode
Garmin G1000 Cockpit Reference Guide for the Cessna Nav III
Changing the Selected Course
The Selected Course on the PFD is controlled using the
CRS Knob. Pressing the CWS Button and hand-flying
the aircraft does not change course while in Backcourse
Mode. The autopilot guides the aircraft back to the
Selected Course when the CWS Button is released.
Command Bars Hold Pitch Attitude
SECTION 6 – AUTOMATIC
FLIGHT CONTROL
6-21