It means it's either trying to engage or disengage.(Forgot to post pic)
View attachment 7163
Isn't this light just an indicator (when flashing) for attempted 4WD activation?
I didn't try leaving it in neutral for a few seconds, so that may have been a resolution to this issue...
I may have pressed an additional button near my fog switch when I started my truck. I was just concerned as I was driving home late with this light flashing for the entire drive.
Just what I thought. Nothing big...If you have the TRD off road, you might have hit the rear locker button if you didn't turn the 4wd selector... That's the only button that I can think of that's near the fog light button that has anything to do with the drive train...