How do I stop the warning bell from ringing when I start my Tahoe and put it in gear ?

if it dings all the time something wrong take to shop and have it checked,could be nothing,better still have it checked.

There isn't a fuse for this, but I would have your ignition switch checked. My wife had a Toyota Camry that did the same darn thing. Only solution was to turn the car off, then back on again, until the warning bell STOPPED going off. Annoying but there wasn't any easy fix besides digging in and cutting wires.

When i put my key inside the ignition switch that beeping nosie come on and it wont turn off in my 1999 tahoe LT what is wrong with that

Check your parking brake make sure it's not engaged at all this will cause the beeping sound to continue even while you're driving down the road