Not sure if there's a connection here but seems like one. Two days ago my 2012 Odyssey lost the normal connection to my cell , ( hands free link).
I was able to reload the phone but the connection broke within seconds. This was while we were away from home and had no trouble starting the engine. Today I was troubleshooting again by deleting the cell intending to reload it, ( had to enter the vehicle PIN), and the Nav screen went blank then restored. Tried to crank the engine and nothing. Checked the battery voltage and it was down to 11.5 volts - normal battery voltage is close to 13 volts with a charged battery, Will pick up a new battery and see what happens.