There are several surrounding parking structures around the Convention Center. The convention center’s subterranean parking structure is shared with the Sheraton Pasadena. Enter from Euclid Avenue. Cost is $15.00. There's a map on the Pasadena Convention Center website with alternative parking locations: http://pasadenacenter.visitpasadena.com/directions-parking/
The best spot is around the corner in an underground parking structure. But there is parking all over the place
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