2018 f150 CC 3.5ecoboost
put key in and started truck, instruments did not respond, radio would not turn on, a/c would not work, power windows would not work.
turned off and started 3 more times before everything came online. ANY IDEAS?
pulling a camper 650 miles in 4 weeks, not wanting to risk it without knowing what caused this. OBD only shows the Evaporator and oxygen sensors flashing. Wouldn't think that would cause such an electrical glitch.

 

There is a good chance a poor connection is involved. It might be a good idea to check and clean the power and grounds that you can see.
Remember ,,, looking at them does nothing. They need to be removed, cleaned and reinstalled. There are methods to do voltage drop testing to check connections, but if you are not experienced and have the test equip to perform them, physically checking them is usually effective.