The Ben my Chree will spend up to two weeks in drydock in July as she undergoes routine maintenance.
In Tynwald this week, Treasury Minister Alex Allinson faced questions about the vessel from Central Douglas MHK Chris Thomas.
He wanted to know what work needed to be done on the ferry.
Dr Allinson said a wide variety of work was planned, including overhaul work on generators:
Difficult to compare Island's Hospice funding with UK, says minister
Mountain Road to close because of gales
New amber warning issued for tonight's storm
Police appeal over theft of building materials
One of capital's oldest buildings may become housing
New NHS safety rule to be brought in on Island
Two city streets to shut for over six months
Politician questions cost of emergency care