Harley-Davidson's testing indicates that if brake fluid is not flushed for a prolonged period of time beyond the 2-year maintenance schedule specified in the owner’s manual and service manual, a braking issue may develop on certain Anti-lock Braking System (ABS)-equipped model year 2008 – 2011 Touring, CVO Touring, Touring Police and VRSC (V-Rod) motorcycles built in the US from 05/26/2006 through 07/11/2011 and in Brazil from 02/18/2007 through 12/13/2011. Specifically, over an extended period of time, the DOT 4 brake fluid, which is hygroscopic (i.e., it will absorb water from the atmosphere), may begin to gel, which can lead to the formation of deposits on the brake components. If these deposits happen to form on the apply valve in the ABS Hydraulic Control Unit (HCU), the valve may stick. If this condition remains undetected, it may lead to a loss of brake function on the affected wheel without notice, increasing the risk of a crash.
While this condition is related to maintenance, following extensive discussions with National Highway Traffic Safety Administration (NHTSA), Harley-Davidson has agreed to voluntarily conduct a safety recall (Campaign 0171) of the subject motorcycles to address it.