After getting home last night, everything was normal with the RL. About 8pm, we had one hell of a storm. Lightning, thunder, etc.

This morning, all of the radio presents are gone... Nav is displaying North Up.... AC is on dual with 68 and 75... radio sound is all center-lined... address book and personal info is blank. All of the messsages were still intacted.

Could a heavy electrical current in the air cause the system to reset?

 

Have you checked to see if the car recognizes you as driver1 or 2? It might be something simple like that.

 

Agreed - check this.