2008 Cadillac STS Brake Disc

The procedure is to inspect the fluid level in the brake master cylinder reservoir, raise and support the vehicle, remove brake fluid to the midway point before proceeding if the brake fluid level is higher than midway between the maximum-full point and the minimum allowable level, remove the tire and wheel assembly, insert a plastic flat-bladed trim tool between the rotor and inboard brake pad, apply pressure to the inboard brake pad until both caliper inner pistons are compressed into the caliper piston bores, insert a plastic flat-bladed trim tool between the rotor and outboard brake pad, apply pressure to the outboard brake pad until both caliper outer pistons are compressed into the bores, remove the brake hose to caliper bolt attaching the brake hose to the Brake Caliper, remove the brake hose from the brake caliper, remove and discard the 2 copper brake hose gaskets, plug the opening in the brake caliper and the brake hose to prevent fluid loss and contamination, remove the brake caliper bolts, remove the brake caliper.

You should road test a vehicle under safe conditions and while obeying all traffic laws, and not attempt any maneuvers that could jeopardize vehicle control.