An amber light.
Amber
Amber
amber
Amber
Amber
Amber
amber
I believe you are referring to the cruise control light. This light means that the cruise control feature has been engaged.
When passing through a Lock an amber light means approchthe lock under full controll
/first of all its u boat
Amber
A steady green light typically indicates that you should approach the lock under full control. This means maintaining a slow and controlled speed as you navigate through the lock to ensure safety and proper alignment with the lock gates.