Battery problems of the 2010 Toyota Prius

The contact owns a 2010 Toyota Prius hybrid. The contact stated that while driving 10 mph, the vehicle stalled and a hybrid system failure message came on the instrument panel. The vehicle was taken to the dealer who was unable to come up with a concrete diagnosis but stated that the failure might had been caused by a one volt over charge on the hybrid battery which happen as a result of excessive braking. The manufacturer was made aware of the failure who offered no assistance. The failure mileage was 41,000 and the current mileage was 43,000.

I own a 2010 Prius. I have owned the car since oct 2009. Twice I let the car sit in my garage without driving it for 6 days. The battery completely discharge over the 6 days such that the car has to be jumped in order for it to start. Both times I took the car to Toyota service center and both times they did not find anything wrong with the car. There solution was to not let the car sit undriven for that long. However, if I took the car to the airport and left it while I was gone for a week, it would not start when I return. This is not acceptable to me since I travel a lot. According to Toyota I have no recourse.

I was on a trip to arizona and when driving in my 2010 Prius from flagstaff to phoenix during the evening, the batter display's top segment glowed red many times in the descent from flagstaff. It was a very difficult to drive to keep the top segment from turning red as the vehicle was coasting and I did not want to exceed the speed limit so I really did not now what to do. I decided to shift to neutral so the engine was not breaking. However in neutral I was wearing out my vehicles brakes which also worried me because of the possibility of overheating the brakes. I looked in my vehicle manual but nothing as in the booklet about this type of occurrence. So I asked my Toyota service personnel at rudy luther Toyota in golden valley, mn and they had not heard of this problem. He gave me a the telephone number for customer service representatives at Toyota and after discussing this incident with many people in customer service at Toyota, the end result was "that the battery was fully charged and when this occurs the top bar will glow red but this will not effect the battery". I do not know if this is true or Toyota is just putting me off but others at the following Toyota forum have also experienced this problem. Is this a safety problem, I do not know. Is it a battery warranty problem, I do not know. But please look at this forum thread and maybe you can discuss this more fully with Toyota. . Read more...