TSB: REVISION NOTICE: April 18, 2017 Rev1: G458The Parts Information and Required Tools and Equipment sections have been updated. Some 2004 ? 2009 model year Prius and 2006 ? 2007 model year Highlander HV vehicles may exhibit a condition where the brake, ABS, and/or TRAC warning light(s) are ON and/or a Check VSC message is displayed. Diagnostic Trouble Code (DTC) C1391, C1252, C1253 or C1256 may be stored. This condition may be caused by a small internal brake fluid leak inside the brake actuator.
