Warning Lights, Switches and Button
GPWS - G/S Button
GPWS - Illuminates red when any GPWS mode is activated. Also illuminates with EGPWS caution or warning. Both are accompanied by an aural warning.
G/S - Illuminates amber when a glideslope warning is activated and the GLIDESLOPE aural warning sounds.
If the button is pressed momentarily while a glideslope warning is active, the G/S light extinguishes and the GLIDESLOPE aural warning stops. On the ground, pushing the button momentarily sounds some aural warnings and switch lights illuminate. Pushing the button continuously sounds all aural warnings.