Wow, lots of over thinking in this thread.
If you get this message, then you need to pop the rear glass and unscrew the two screws in the middle near the latch. The sensor is on the drivers side near the middle. Unplug that and the message will go away.
To fix this, you need to reverse the wires.
For those that get this and can't access the plug right away, you do realize that you can dim your lights all the way off and you won't have your lights on, right?
05 WK LTD 5.7L Hemi QD II Midnight Blue Pearl, Blue WK Club member #30
Intune, AFE Stage 2 CAI, BT Catch Can, Gibson Cat-back, OME HD, 255/75/17 BFG KM1s, 1.25" Spidertrax, LED Interior, Reverse & Tail Lights, 3/4" Grille, Chrome Fuel Door & handles, SRT8 Pedals, Taylor Shorties, XK knob, 4xGuard Front 4 & Rear Diff.