Riders rated four-out-of-five stars or lower will be banned for six months. Ratings are based on feedback left by drivers after each journey.
Uber is to block customers in Australia and New Zealand from its ride service if they do not behave.
Riders rated four-out-of-five stars or lower will be banned for six months. Ratings are based on feedback left by drivers after each journey.
The move is aimed at improving passenger behaviour, the company said.
Uber told the BBC that Australia and New Zealand had been identified as a place to bring in the rule after feedback from drivers.
An Uber spokeswoman said only “a few thousand” of its 2.8 million users in Australia and New Zealand currently had ratings of below 4.0. The "vast majority" - believed to be more than 90% - had ratings of at least 4.5, the company said.
Passengers will receive several warnings before they are banned.
In other news, Uber Technologies chief executive Dara Khosrowshahi says the ride-hailing company is on track to launch an initial public offering next year and has no plans to sell its self-driving car research arm.
Khosrowshahi told Reuters in an interview that the company was not planning to sell its Advanced Technologies Group "at this time”.
"Ultimately, it is a big asset that we are building and we can monetise that in whatever way we want to. It's not something we're thinking about it at this point," he said.
Khosrowshahi also said Uber was "quite optimistic" it would be able to resume testing of self-driving cars later this year after a fatal crash involving an autonomous Uber car in Tempe, Arizona in March.