The Germany international believes the Bavarians are the favourites to win the league title, while revealing his happiness at Signal Iduna Park amid speculation over his future
Jurgen Klopp's men had to settle for second spot in the table last term - finishing 19 points behind Bayern - and Reus has warned that they must be more consistent this season if they are to threaten the Bavarians.
"It will be all about Bayern Munich again in the Bundesliga, even if they weren't crowned champions in 2007 and 2011 the season after a World Cup," Reus told Kicker.
"As for Dortmund, we will have to ensure we don't drop as many points again as we did halfway through last season.
"We did very well at the start of the campaign and toward the end, but were not at the same level halfway through the season."
The 25-year-old also briefly discussed his future and insisted that he is happy at his current club amid reports linking him with a summer transfer.
"I can only repeat what I have already said before. I am very happy to be playing for Dortmund.
"My main objective for now is to get back to peak fitness. Everything else isn't important for me at the moment."
Reus has a contract with Dortmund until the summer of 2017, but has a clause in his deal that allows him to leave BVB for €35 million at the end of the 2014-15 campaign.