In 99% of AVIC-HRZ09 units, this will show "English" grayed out or missing. If you do see it and select it, only the navigation voice changes to a robotic English voice; the main menus remain Japanese.
To change language on a stock AVIC-HRZ09, you must: pioneer carrozzeria avic-hrz09 change language
The AVIC-HRZ09 supports smartphone integration via HDMI/MHL. You can mirror your English-language Android or iPhone to the screen. In 99% of AVIC-HRZ09 units, this will show
Remove the Carrozzeria AVIC-HRZ09 and install a global model (e.g., Pioneer DMH-WT7600NEX). If you must keep the JDM look, search for a "World Spec" conversion board – but these are rare for the HRZ09. In 99% of AVIC-HRZ09 units
[Your Name/Organization] Technical accuracy: Verified against user experiences (no official English support from Pioneer).