Surface Transportation Savings Act of 2011 - Rescinds specified amounts authorized for FY2010 and for October 1, 2010-March 4, 2011, under the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (SAFETEA-LU) for: (1) safety belt performance grants; (2) administrative expenses of the National Highway Traffic Safety Administration (NHTSA); (3) the National Driver Register; (4) NHTSA operations and research; and (5) transit formula and bus grants.