Any ideas on what could cause this right out of the blue?

 

check your fuses. i had one fuse that would blow out of the blue for no apparent reason (got to be one though). in my case, it was just the taillight/running lights. still had headlight and brake lights. went through 3 fuses in a week, then none for the past year and a half.....

electrical gremlins suck. never could figure it out.

 

yea, that was the first thing I thought of but unfortunatley its not a fuse. Kinda odd that the passing lights, front turns and headlight. I suspect something under the nacelle perhaps but not sure.

 

Nah, all connect using different plugs inside nacelle, so I doubt you will find a single problem there causing all to not work.

WTF, you might as well start there, huh?

 

I'd think that would be a warranty problem,but if the moco won't fix it do you have a service manual and a volt meter? The wiring diagram shows a relay between the ign. sw. and the fuse block.The wiring diagrams in the 08 manual are considerably easier to trace out than the one I had with my 07 RKC. They color code them now.I'd check and make sure that you've got battery up to your fuse and start from there.Looks like the common apparatus that all those circuits have is the lighting relay. Maybe a bad relay or loose plug.