What's Wrong With My 2001 Prius ?!

Jun 07, 2013 2 Replies

Have had perfect light service for 12 years to 60,000 miles with not a single issues whatsoever.



Now all of a sudden, the charging has gone Strange under a variety of conditions.



e.g. - when stopped at long light, the ICE would always typically shut down, but then start up spontaneously, presumably to charge the Battery as might specially be needed. It always had don this. Now it shuts off immediately and completely and remains off until I throttle-up to go again, when it starts again.



The energy graphic is showing a lot of things that don't make sense, including no energy transfer whatsoever at odd times when energy is obviously in transit.



Any help, most graciously appreciated, and thanks ...


Thanks all !!!

charging the whole battery will fix that, but connecting a charger directly

I would not recommend ANYONE do ANYTHING with a Prius battery unless you have prior experience with battery powered systems of this magnitude!

There is a very spcific way of removing the Prius battery pack and connectors. The Toyota techs that work on the Prius are sent to school for a couple weeks learning how to work on this system.

Why? Because there is enough current in the battery pack to KILL you, and even some techs have been killed removing the battery from the electrical circuit!!!

Leave this to a qualifed tachnician.

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