Gen 2 Prius Stealth EV Mode Button Install.

I Installed the EV Mode Button in my Gen 2 Prius converting the Headlight Flasher to a Stealth EV Mode Button. The EV Mode Button is normally a hidden feature in the American Gen 2 Prius. The Software for EV Mode is installed... But Toyota did not include the actual button/wire to activate it for American Markets. If you install the wire and button yourself... you can access the EV Mode Function.

Below is a complete tutorial of the whole process as well as testing the EV Mode Button behavior with graphed data using the app Realtime Charts for Torque on Android. This was my 2nd time doing this install and it worked both times.

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The 1st time I did this install I ran into a lot of problems because I followed the Evan Fusco Method to a T here on PriusChat... You can cause some serious damage doing the install this way... Mostly because you take the Headlight Stalk Connector Pin, and insert it into the Hybrid Control ECU. This Connector Pin is not right for the Hybrid Control ECU Connector at all, and it will not lock right doing it this way. However, all of the other directions were very helpful. A compilation explaining the issues I had the 1st time doing this install is below. The install still worked out in the end.

Below is just a quick compilation of the problems I experienced and explains why doing this install the Evan Fusco way is not advisable.

 

Watch the final chapter/10 minutes of the YouTube vid. I explain and show the behavior of the EV Mode button and why it exists.