AutoExpreso is an electronic toll collection system used on tollways in Puerto Rico. The system uses passive transponders where payment status is indicated by a light at the 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, until 2015, cash was still accepted on PR-5 and PR-22 due to the privatization of those tollways.