What is indicated when the autopilot is engaged in approach mode?

When the autopilot is engaged in approach mode, it indicates autoland capability. In this mode, the aircraft is able to perform an automated landing under certain conditions, including proper alignment with the runway and appropriate guidance from the instrument landing system (ILS).

During the approach, the autoland system can manage both lateral and vertical navigation, allowing the aircraft to descend and line up properly for landing without requiring manual control from the pilot. This system enhances safety and precision, especially in instrument meteorological conditions where visibility may be low.

The other options do not represent what is indicated by the approach mode. Manual control required does not apply since autoland means the autopilot is handling the landing. Heading hold is more associated with cruise and en route operations rather than the final approach phase. Vertical speed hold is a separate function that maintains a set rate of climb or descent, which is not the primary role of the approach mode when focusing on landing.