There may also be a ghost that eats the 12V battery. About every other time, if the engine is running when I turn the car off, all the dash displays stay lit and won't turn off. This continues past the 5 minute limit. It is necessary to turn the car on, then off again, with no foot on the brake pedal, then it shuts down completely. I went to the owner's section on Chrysler's website and tried to tell them about it, but the morons there just kept saying I should take it to the dealer. No thanks.
I guess the solution to that one is to make sure the car is on battery operation before attempting to turn it off.
In that regard, it's just another reason the PacHy should have the ability to manually toggle between ICE and battery operation. This was a major gripe from owners of the first 2011-12 Chevy Volts. GM actually responded and the 2013 Volt (and, I presume, all newer versions) did, indeed, include a ICE/battery toggle in the menu.
Seriously, the reason
Volt owners wanted to be able to manually switch between ICE/battery was to 'save' the charged battery for the most optimum times. For example, when it was known that a long, highway journey would be undertaken, one could immediately switch to ICE and save the battery for later, in-town use. Without the toggle, highway operation quickly uses up the battery (zero brake regeneration) and ICE operation would be at its highest efficiency.
I can't for the life of me understand this omission by FCA on the PacHy. I would have thought they would have done extensive research on what early Volt adopters said about their cars' operation, which is virtually identical to the PacHy. If they had, this would have been one of the first concerns that lept out on the initial Volts.
OTOH, maybe they they were afraid owners would save the battery as a reserve and run the gas tank empty or, worse, constantly run the PacHy as a pure BEV devoid of any fuel in the tank, at all, to save weight. The problem with that is I've read that running the gas tank empty is not such a great idea because the fuel pump is located in the tank and relies on the surrounding gas to keep it from overheating. Exposing the running fuel pump with no gas to keep it cool may damage the pump.
And then there's the good old Fuel and Oil Refresh Mode (FORM). I have no idea how FORM would respond if someone tried to drive a PacHy on battery, alone, for an extended period of time with zero gas in the tank. I can sure see a major issue (i.e., immobilization) if FORM attempted to engage with no fuel in the tank.