Tow light not engageing?
 

Notice today on my 2002 Silverado, when I press the tow/overdrive button on my transmission colum, the tow light does not come on my dash or engages it.

Don't get me wrong, truck runs and shifts w/o any issues, just that this issue worries me.

Anyone know what it may be? I hope to find a simple fix. Thanks 4 any help / tips.

-Mike