Hi I am from Hawaii, my mother has a Chinese passport and was wondering how would she renew it?

I know that the consulate went to Hawaii before to renew the passport for Chinese citizens in Hawaii, but currently, I have never heard of this news. Maybe you can contact with the consulate of PRC in Los Angeles and inquire about that.
Or you can go to the consulate and renew the passport for your mother. Those documents are needed for the renewal: a completed application form, 2 passport-style photos, passport and its copy, her residence permit in USA as well as other documents required by the consular officers.

Thank you for your helpful answer, but I was wondering where is the consulate in Hawaii located?

There is no consulate in Hawaii. You should ho to the consulate general of PRC in Los Angeles do it. Address: 443 Shatto Place, Los Angeles, CA 90020.
The Passport & Visa Office is located at 3rd Floor, 500 Shatto Place, Los Angeles, CA 90020