Rudd did not enter a plea during his brief appearance.
The 60-year-old is charged with threatening to kill, which comes with a maximum prison sentence of seven years, as well as possessing methamphetamine and marijuana.
Citing a lack of evidence, prosecutors earlier dropped a more serious charge that alleged Rudd tried to hire a hit-man to kill two people.
The New Zealand Herald newspaper reported that during his appearance, Rudd winked at reporters, drummed a rhythm on the dock and then sped away from the courthouse in a black sports car.
Rudd’s future with the popular Australian band remains uncertain.
Rudd remains free on bail with his next court appearance scheduled for Dec. 2. That’s coincidentally the same day that AC/DC’s new album Rock or Bust is due to be released.
Rudd’s lawyer could not be immediately contacted for comment Wednesday.