All Williams/Williams by Bachmann locomotives are designed and manufactured for conventional transformer control. We do not make locomotives equipped with Lionel LEGACY, TrainMaster Command Control, or MTH Electric Trains Digital Command Systems. However, you can still control Williams locomotives using a command control remote in conventional mode only. Consult your command control system's instruction manual for specific directions.
Some suppliers offer aftermarket upgrade kits for DCS and TMMC that can be installed on Williams locomotives. However, Bachmann Trains does not offer installations and cannot provide support for these command control upgrade kits.