Dealer message - American Honda (AHM) is investigating certain 2013-2014 RDXs with a complaint of fuel cap warning light on with or without DTC P455(EVAP System Large Leak Detected) and/or P456(EVAP System Very Small Leak Detected) Stored.
To fully understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to your attempting any further repair of any kind.