Drunk Driving Repeat Offender Prevention Act of 2011 - Directs the Secretary of Transportation (DOT) to withhold specified graduated percentages of a state's apportionment of certain federal-aid highway funds for FY2014-FY2016 if the state has not enacted and is not enforcing a law requiring the installation of an ignition interlock device for a minimum of 180 days on each motor vehicle operated by an individual convicted of driving while intoxicated or driving under the influence (having a blood alcohol concentration of 0.08% or greater).