What is "autoexpreso"

AutoExpreso is an electronic toll collection system used on most tollways in Puerto Rico. The system uses passive transponders (similar to SunPass Mini in Florida) where payment status is indicated by a light at the toll plazas. AutoExpreso transponders can be replenished at all Puma and select Total stations in Puerto Rico or at designated replenishment lanes at select toll plazas.

In 2012, AutoExpreso became the exclusive form of payment on most of Puerto Rico's tollways, with cash no longer being accepted. However, cash is still accepted on PR-5 and PR-22 due to the privatization of those tollways.

AutoExpreso is not interoperable with other electronic toll collection systems outside Puerto Rico (such as E-ZPass in the northeastern United States or SunPass in Florida).