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Today, I was doing great on a 60mpg plus tank and started a recal event. I had a 43% SoC when I noticed I couldn't go EV and the battery SoC started climbing. I got to a 58% SoC, but it would climb no more. Still could get regen, but MG1 would not let it go any higher with the generator. Then I noticed I got motor Assist during acceleration and the battery SoC would drop. Still, no EV mode and I was in this horrible drop in MPG with a battery SoC in the upper 50's. At first, I thought my HV battery went south, but I noticed my battery fans running hard. It only got to 81F here today, but a recal could heat-up the generator if the Electronic Coolant Pump failed. Also, the battery could be over heating if the battery A/C wasn't working. Looks like a first for me at any point. I'll be doing some more test to see what the problem is, but does anyone have any guesses?

GaryG

Did you pull up the Tav xgauge to see what the battery temp was? For the motor/generator and ME temps I think that different xgauges are needed for 2009 and up. Also, during recal you can pull up a gauge that says why the recal occurred and what the status is. Maybe blend door or rear A/C?

Mine recalibrated last week, recalibrate went smoothly and quickly, but the next day I encountered the same situation as you experienced. I suspect the battery was hot as I heard the rear a/c running, but I haven't bothered to program Tav into my ScanGauge yet, so I had no idea how hot the battery was.

I think overheating of the generator or HV battery was preventing a recal completion. I'm still stuck in this mode until a cooling matter is repaired or the HV battery is replaced. I'm leaning to an Aux A/C issue, but have not had any time to investigate yet. My odometer is at ~30,100 miles, but I don't think that is in play at this point. I never run my cabin A/C, but the Aux A/C runs all the time in my hot weather. I've never had a battery blend door trouble, so I don't think that's an issue. This is the first time for prolonged non-EV mode, so heating must be the problem.

GaryG

I think overheating of the generator or HV battery was preventing a recal completion. I'm still stuck in this mode until a cooling matter is repaired or the HV battery is replaced. I'm leaning to an Aux A/C issue, but have not had any time to investigate yet. My odometer is at ~30,100 miles, but I don't think that is in play at this point. I never run my cabin A/C, but the Aux A/C runs all the time in my hot weather. I've never had a battery blend door trouble, so I don't think that's an issue. This is the first time for prolonged non-EV mode, so heating must be the problem.

GaryG

If so Tav and MeC xgauges will tell the story. Is there any condensation from the battery A/C?

Okay, I haven't had time to test the MECP or the A/C, but when I came home today I think I'm closer to knowing what was causing the EV problem. Under the left front of my '09 FEH was a large wet spot and something is now dripping. This just started within the last 4 hours and it appears to be MECP fluid. I haven't started or moved my FEH since I parked it before my post here. I haven't heard that the pump will leak when it goes bad (anyone?), so it might be just a leaky hose or something.

GaryG

Hi Gary:

Any updates on the repair?

Wayne