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It seems like a lot of Ford owners might have this problem, but I'm not finding any solid information about it being a bug. My 2016 with about 32K miles on it is showing the error message about 30 seconds after cranking up. I've got what looks like a brand new battery with tight contacts at the battery. AutoZone put the ODB on it and didn't find any problems with the alternator (or anything else.) I did some volt-meter testing before going to AutoZone and didn't find any problems with the battery at rest or under load (A/C, lights, radio, fog lights etc.). AutoZone also tested the battery. It checked with no problems, but the employee said he thought the cranking voltage dipped too low during the starter test. It went down to around 9.1 on the line graph. This alert box never appeared before updating from SYNC 1.0 to SYNC 3.0.
Does anyone know what components can trigger this warning? It only comes up shortly after cranking. When the alert is dismissed, the red battery icon light stays lit. The alert box hasn't reappeared once it gets dismissed. I'm going to take a ferry and put this truck on a remote beach later this month and want to nip any electrical problems in the bud.
Does anyone know what components can trigger this warning? It only comes up shortly after cranking. When the alert is dismissed, the red battery icon light stays lit. The alert box hasn't reappeared once it gets dismissed. I'm going to take a ferry and put this truck on a remote beach later this month and want to nip any electrical problems in the bud.