A ride pass offers you a guaranteed price - or a guaranteed discount, for some passes - on qualifying rides in exchange for an upfront fee. The guaranteed price passes have a max redeemable value - for example, a pass may only cover the first $25 of a trip. So for trips where the actual fare would exceed that max amount, you'll pay the guaranteed price plus the overage.
For those few trips that happen to fall below the price guaranteed by the pass, we'll charge you the lesser amount, but your pass will still be redeemed.
Most passes expire after 28 days and are currently available for purchase in select U.S. cities. Details of pass offers and max values vary by city.