So I drove a few blocks for a meeting and parked for 2 hours. Came out and put the key in the ignition and nothing. No lights. Have new battery, RCM only 6 months old.
Disconnected the battery and tried to think of what it could be. After 5 minutes connected the battery and everything was good. Anyone have any idea of what to look for?

 

Perhaps dirty or corroded battery cables. You need to check both ends of the cables.

 

The fact you messed with the battery connections implies the issue is at the battery posts/battery clamps.
I get a picture of those posts and clamps might give us a clue.

But there is something - if it happens again, I understand you had no dash lights.
But if you turn the headlights on, do they come on? If not, I'd look at battery/connections. If they DO, then the issue is in the ignition switch or MAYBE RCM.

Of course, I am making assumptions, because 'no lights' is very vague, I know you think it isn't, but it IS vague.

 

Thanks for the suggestion.
I cleeaned everything so we will see if that solves the problem.

 

This happened to me when I first got my car. The negative cable was loose at the battery terminal. I tightened both cables at the terminal and all was good.
Here's a tip: When you put your battery cables on after removing them, tap them down so that a little bit of the terminal is above the battery cable connector. Battery terminals are a bit conical in shape, so if the cables aren't seated correctly, vibrations from driving will make them slide up and lose connection. That's what happened to mine.

 

Thanks

 

It has been 16 days since I cleaned my battery terminals and cables and tightned the connections. No problems since. Thanks everyone for their suggestions.

 

Thanks for coming back with the update.