I lost my key and I AM trying to move the car from gas pump?

You will need to jack the car up and move it on the floor jack or tow truck to remove it from the gas pump. Then you can have a locksmith come out to make a copy of the door lock which will work in the ignition key, this will enable you to move the steering wheel, but the immobilizer will be engaged. A GM dealer can program a replacement key for you using the VIN number and a new ignition lock. Here is how to change the ignition lock out in the images below. Check out the images (below). Please let us know if you need anything else to get the problem fixed.