Our 2011 Expedition recently began having an issue where the warning chime (the one that sounds if a door or rear hatch is open, or your washer fluid is low, etc) but when it does, there is no message in the info display, and no dash idiot lights lit up.
Sometimes it will do it 2-3 times within several minutes, and then it will not happen again for days. I made an appointment with the dealer (also needs parking brake adjusted, and it has a very harsh downshift from 2-1 when creeping along, and sometimes there feels like there's a misfire) but the service guy said its going to be extremely hard to diagnose. So we might have to just live with this annoyance.
Sometimes it will do it 2-3 times within several minutes, and then it will not happen again for days. I made an appointment with the dealer (also needs parking brake adjusted, and it has a very harsh downshift from 2-1 when creeping along, and sometimes there feels like there's a misfire) but the service guy said its going to be extremely hard to diagnose. So we might have to just live with this annoyance.