Gas gauge registers empty even after fill-up. I noticed several people have this same problem. Has GMC issued a recall for this problem as I know it will be expensive to fix?

Or bad float !!

I think its time to change your sending unit in the tank,not sending a signal to the gauge

Common problem is for the tiny stepper motor to go out in the back of the guage. Can buy off of E-bay, very cheap.

try alldata.com look up recalls and tech bulletins and also take your vin number to the dealer for any outstanding recalls.

you have 2 recalls
pcm update fuel pump replacement
fuel pump module replacement and pcm software

the float is punctured

The oxygen sensor has nothing to do with the fuel gauge. There are two possibilities for the gas gauge error, first it could be the in-tank gas level sensor or it could be a defective stepper motor which drives the gauge. A professional scan tool can determine the fuel level being sent by the in-tank sensor, if that disagrees with the gauge, then the stepper motor needs replacing.

No I dont believe theres a recall sound like your float is sticking

The sending unit in your tank is bad replace it.

It sounds to me like you have a short in your wiring harness at you fuel tank. there is a plug on top of your fuel tank that controls you fuel pump and your sending unit that tells you how much fuel is in the tank. This plug can be a real p.i.a to get to on some vehicles, you may have to take the vehicle to a shop to fix it, if you are not mechanically inclined.