In common with other Calmac "Loch Class" ferries, cars and passengers are loaded via folding ramps at either end of the vessel.

In 2024, at a time when flood protection work in Millport meant a lot of heavy traffic, the hinges to both ramps on Loch Shira were damaged beyond repair, forcing her withdrawal from service on 5 April.

CalMac attributed the problem to unidentified "large commercial vehicles" exceeding the ramp design loading, and replacement parts had to be made in Poland to get regulatory approval.

By 24 May the parts were delivered and work put in hand,[8] followed by "extensive sea and berthing trials across the Clyde area before a planned return to service on Wednesday August 7.

Loch Tarbert was removed from service for ramp repairs, and Isle of Cumbrae gave short term cover.