good reply, z1.

Pedro, one thing I have not seen, though I may have missed it while scanning (sorry if I am asking redundant stuff)- has anyone else tried to replicate the problem? That is, have you or anyone sat in the passenger seat and gotten out in the exact same manner? You said Ford couldn't replicate it- have you? Process of elimination 101 sort of requires this, though I understand your hesitation to drive the vehicle or perform this experiment (and its not even in your posession at this point?) Its very hard for even an expert tech to figure out a problem that is a) sporadic b) occurs only with one person in a specific situation c) cannot be replicated. I am NOT doubting your daughter's claims; however I can say with fair certainty that Ford wil NEVER solve your mystery without the ability to replicate the problem. Nobody can. Ever.

As an EE, I lean strongly towards an explanation of a particularly nasty case of static. I used to be a helicopter refueling crewman- hotpumping when the rotors are turning generates a massive amount of static, and I've had shipmates knocked out cold by it when the groundstrap wasn't connected properly, and followup cardiograms (required after electrical shocks in the navy) do show differences. Static shocks normally feel like the ones we're used to from doorknobs, etc, but a larger charge buildup from a car, discharging more slowly because of resistances in paint, etc, can feel like live current for a moment as it takes longer to discharge through a suboptimal path.

For peace of mind, I recommend, as z1 did, that the HV system be checked- with you present, for peace of mind. You can personally check for unintentional grounds/connectivity to the vehicle, and if the system is properly isolated per the meter, then that's that- the test equipment doesn't know how to lie. The service manual should have minimum resistance values for 'proper' isolation- have them show you, and then compare it to the meter as they perform the check.

Truly- if the HV system is properly isolated (and the 12V properly grounded to the chasis), then the issue is NOT electrocution from a live energy source. Several electrical engineers have all provided the same advice at this point- nobody is trying to cover up anything.

I hope for your peace of mind, that you are able to find a satisfactory explanation.