As part of the expansion of Heilbronn Stadtbahn northern branch, the Bad Rappenau–Bad Friedrichshall section was closed for upgrading between 7 January 2014 and 1 May 2015.

[8] At the same time, Bad Rappenau station was upgraded to make it accessible for the disabled and given a third platform track.

It now houses the Bahnhofsgalerie ("Station gallery"), which includes a small flower shop, a Schmitt&Hahn bookshop, a customer centre of the AOK health insurance company and a bakery.

Bad Rappenau is in the area where fares are set by the Heilbronner Hohenloher Haller Nahverkehr GmbH (HNV) transport association.

Until early January 2014, the Regional-Express service RE 2 ran between Mannheim, Heidelberg, Sinsheim and Heilbronn every two hours.