How do you change the tire of Cadillac CTS 3.6 2011?

To change the tire on a 2011 Cadillac CTS 3.6, start by ensuring the vehicle is on a flat surface and engaging the parking brake. Loosen the lug nuts slightly, then use a jack to lift the car until the tire is off the ground. Remove the lug nuts completely, take off the flat tire, place the spare tire on, and hand-tighten the lug nuts. Finally, lower the car back to the ground, and tighten the lug nuts in a crisscross pattern to secure the spare tire.