This is an oldie. A 2001 Buick with the old GM “VATS” security chip. This type of key is the only “chip” key where you can actually see the chip. And it is the only chip system that can be bypassed. If you lose all your VATS keys, I can help. Your dealer can’t or won’t. We keep all 3 styles of GM vats keys in stock, along with all 15 chip values, so we are sure to have the exact one your car requires. We also have a “VATS Bypass” box that can be installed which eliminates the need for the expensive VATS key.