Steel was invited to be involved in the BBC’s strategic decision-making by director of comms Paul Mylrea, and has been working closely with acting director-general Tim Davie.
Steel has spent six days at the BBC during the past two weeks, providing an external perspective on the ongoing crisis.
Tony Hall was appointed director-general last week after George Entwistle held the role for just 54 days.
Steel is not currently working on any further BBCs efforts, but remains on-call if further help is required.
He was at the BBC for 22 years, most recently working as chief comms adviser during his final year.
Steel already counted the BBC as one of his clients for training and advice, but this is understood to be the first time he has advised the broadcaster over the Savile issue.
Steel was caught on cameras when he was present at the press conference given by Hall last week.