I'm having this problem last few weeks.. I have a 2001 4runner automatic and having this problem, Doesn't happen to often, But when driving my 4wd indicator light comes on the dash flashing. I know it's not in 4wd and nothing hits the shifter or button. I then pull off road and played with shifter and would go off.. Getting worse Now, I have to turn the key off and on to make lights go off. The other day I started it up and put in gear and heard a clunk and it went into 4wd low gear. The shifter and button weren't touched. I had to keep turn the key on and off to get the lights off and out of 4wd low. I feel it's a solonid or something? Any Help???