04 Chevy Duramax 4x4, transmission selector light intermitent

[jeffscharbor]

I have never had a problem with my truck, until now. While driving yesterday, I noticed the transmission selector light that indicates which gear your in for example: PRND321 there's a small electronic light that moves to the gear selected, it's located underneath the above mentioned gears. The light went off, but the gears were still illuminated. The transmission was stuck in a middle gear and went into neutral at an intersection. I had to manually move the selector to 3 in order to move. I turned the engine off and then back on thinking maybe a computer reset would work. The selector light came back on for a few minutes and went out again, causing the same problem. Does anyone have any idea on what's going on and how to fix it?

Thanks,
Jeff

[ob_1jr]

Sounds like a Neutral Safety Back-Up Switch gone bad. They are pretty easy to change from what I have read. You might still be covered under warranty though.