To ensure equitable access to education for emergent multilingual learners, teachers should hold certain beliefs (Lucas et al., 2015) about language, including sociolinguistic consciousness, a value for linguistic diversity, and knowledge of the sociopolitical positioning of language (Lucas, 2011). This study examines possible effects of critical language awareness (CLA) (Fairclough, 1992) coursework on the development of critical consciousness related to language, identity, ideologies and culturally sustaining pedagogies multilingual preservice teachers of color. The research question is: What are some effects of the CMLA coursework on multilingual preservice teachers' perceptions about the following measures: language ideologies, supporting students' multiple languages outside the classroom, advocating for students' multiple languages in the classroom, and critical perspectives? ANOVA analyses on pre- and post-survey data from 48 preservice teachers suggest that CLA coursework had a significant impact on three of the four critical consciousness measures, at varying levels of significance. This study shows that critical content delivered through well-designed pedagogical treatments can help improve preservice teachers' understanding of the language use in their future classrooms, empower them through reflection on their language, identities, and ideologies, and guide them toward more asset-based approaches to teaching and learning.