Greetings. My 2010 Prius Gen III has stalled at least six times in the last year. By "stalls", I mean I give it gas, but the car does not accelerate. I believe it is stalling primarily in hot weather when the A/C is on. It does NOT give any codes or dash warning lights. I have driven with a code reader connected, but after it stalls, I still don't get any codes. It stalled at 65mph on a highway, several times in bumper to bumper traffic, and twice as I was creeping up to an intersection very slowly. Once it stalls, I turn it off, then on again, and it starts with no problem. It runs fine for several weeks/months, then stalls again. I cleaned the MFS, but that didn't help. When I put the car in ready and check the inverter coolant reservoir, I see the fluid level is flat, but goes up and down slightly. Is that normal, or should it be bubbling/churning? Would a bad inverter coolant pump cause stalling? Any other possibilities? I thought I read somewhere that there is a part inside the inverter that can overheat and cause stalling? Thoughts on that? Any help would be greatly appreciated. John
