There's been three occurrences. All times, it was while idling in gear with vehicle moving slowly - e.g. parking lot crawl. All electrical shuts off just like I had turned the key off. All lights off, AC off, radio off, engine off, everything off. No warning lights, nothing - just turns off. The vehicle restarts fine with no immediate recurrence. For some reason it simply turns itself off. It's going to be bad if this happens when pulling out into traffic.