The EGPWS is a Terrain Awareness and Alerting system providing terrain alerting and display functions with additional features.

The EGPWS uses aircraft inputs including geographic position, attitude, altitude, airspeed, and glideslope deviation. These are used with internal terrain, obstacles, and airport databases to
predict a potential conflict between the aircraft flight path and terrain or an obstacle. A terrain or obstacle conflict results in the EGPWS providing a visual and audio caution or warning alert. Additionally, the EGPWS provides alerts for excessive glideslope deviation, too low with flaps or gear not in landing configuration, and optionally provides bank angle and altitude callouts based on system program pin selection. Detection of severe windshear conditions is also provided for selected aircraft types when enabled.

• Honeywell's reactive windshear alerting provides visual and aural warnings of impending windshear.
• The geometric altitude algorithm overcomes barometric altimetry limitations, like cold weather operations.
• Honeywell’s peaks display depicts the highest and lowest elevation terrain within the display range at any altitude, when most TAWS displays would be blank, which can be useful in the event of an unplanned descent.
• The runway field clearance floor (RFCF) feature provides protection against inadvertent landings below airport runway thresholds at airports that are much higher than surrounding terrain.
• The vertical situation display (VSD) provides altitude awareness in relation to the terrain, as well as an aircraft trend vector.
• Our radar autotilt feature allows the EGPWS to provide terrain elevation data to compatible radars for controlling the tilt of the radar antenna during its scan.
• The Mark V also hosts SmartRunway® and SmartLanding® functions to enable protection against runway incursions and excursions.
• Using envelope modulation, Honeywell’s Mark V reduces the rate of nuisance alarms to increase pilot confidence.
• The Mark V has auto pop-up to change from radar to terrain display in the event of a terrain alert, reducing pilot workload during this critical time.
• The Mark V features altitude callouts of height above terrain or field elevation during final approach.