Mercury Mariner Hybrid 2007 - Manual (Page 116)

Seat mounted cup holders (if equipped)
Deploy by pressing the button on
top of the cupholder.
The cupholder is designed to detach from the seat when subjected to
heavy load. The cupholder can be reinstalled by returning to the closed
position.
Use only soft cups in the cupholder. Hard objects can injure you
in a collision.
2007 Monterey (mty)
Owners Guide (post-2002-fmt)
USA (fus)
Seating and Safety Restraints
116