An electrical connector includes a dielectric housing having at least one contact cavity extending along a longitudinal axis between a mating end and an opposite contact loading end. A primary terminal lock extends from an interior wall of the housing and is configured to engage a terminal contact to retain the terminal contact in the at least one contact cavity. A secondary locking member is integrally formed with the housing. The secondary locking member has a flexible hinge member proximate the contact loading end that pivotably connects the secondary locking member to the housing. The secondary locking member includes an engagement end that is received in the housing in a direction transverse to the axis of the at least one contact cavity to provide a visible indication of a seating condition of the terminal contact.