Manriquez began her career in 1974, after she was named "El Rostro del Heraldo" by an important Mexican newspaper.
Her first role in television was in the telenovela Lo Imperdonable (1975) with the Spanish actress Amparo Rivelles.
She played characters in the movie La Casta Divina (1976) and in telenovelas as Un rostro en mi pasado (1991), Pueblo chico, infierno grande (1997) with Verónica Castro, Laberintos de Pasion (1999), Entre el amor y el odio (2002), Mundo de Fieras (2006), Dos hogares (2011) and recently Amores verdaderos (2012–2013).
[2] Silvia is divorced and she has two children named Xareni and Lliv.
[4] She played Jovita Ruán in the telenovela Pueblo chico, infierno grande, with Verónica Castro.