Symbol 3625 from ISO 7000 - Title/Meaning: Tail lift Function/description: To identify the control that operates the tail lift. To indicate the operational status of the tail lift.
Additional information: 
The truck cabin icon may be omitted if not needed
Arrows may be added to indicate the movement directions.
Own work using: iso.org/obp/graphics/grs/40cb6ec7-912b-42d3-b3f4-bad2e7404468 200.png
Vectorization:  Mrmw