is the language being used still?
No, The language is severely endangered.
Kawaiisu language
In 1994, the language was severely endangered, with perhaps fewer than 20 remaining speakers.

what is manzanar? It is the site of one of ten American concentration camps. who were the residents? Japanese Americans. which war led them to the camp? World War II. how long they had to be there? From March 1942 to November 1945. where was the camp set? It is located at the foot of the Sierra Nevada mountains. who were the inhabitants? Martis people and indigenous people. who were the latter's descendants? UNANSWERABLE are the latter belong to tribal community? Yes, they were the Northern Paiute tribes on the east side, with the Mono tribe and Sierra Miwok tribe on the western side, and the Kawaiisu and Tübatulabal tribes in the southern Sierra. what language did the third community spoke? Kawaiisu language.
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Kawaiisu language [SEP] Revitalization
In 1994, the language was severely endangered, with perhaps fewer than 20 remaining speakers. In 2011, The Kawaiisu Project received the Governor's Historic Preservation Award for its efforts to document the Kaiwaiisu language and culture, including "the Handbook of the Kawaiisu, language teaching and the Kawaiisu Language and Cultural Center [and] the Kawaiisu exhibit at the Tehachapi Museum." As of 2012, the Kawaiisu Language and Cultural Center offers language classes and DVDs for home learning, as well as training for other groups seeking to create language learning programs and materials.