I was having a particular perplexing problem last week. On Friday, the temperature was well above 100 (about 110 or so). Because I had Friday off, I was running errands all day. In the morning, everything was working just fine. By the afternoon, my regen braking was not working and my battery was not getting a charge. Whether I was coasting or braking softly or a bit harder, it would only go to the first blue block past zero. As the afternoon dragged on even more, my regen braking would not go below the zero line (to me, that seemed as if it was not regen at all). In addition, the battery was not getting charged - which was not a surprise if the regen brakes were not working. It would actually regen more on a slow coast than it did when I was braking.

Anyone ever encounter this or have any suggestions?