CHICAGO--(BUSINESS WIRE)--Fitch Ratings has affirmed and revised the Ratings Outlooks on the notes issued by various Sierra Timeshare Receivables transactions as detailed at the end of this commentary. KEY RATING DRIVERS These affirmations reflect the ability of each transaction's credit enhancement to provide loss coverage consistent with the current rating levels. The Stable Rating Outlooks reflect Fitch's expectation that the notes will remain sufficiently enhanced to cover the stressed loss