Start by loosening, but not removing, the lug nuts on the front wheel you're working on. You'll need a lug wrench for this.
Step 2: Jack up the vehicle and remove the lug nuts.
Place a jack under the frame of the vehicle and jack it up until the wheel you're working on is off the ground. Then, remove the lug nuts and take off the wheel.
Step 3: Remove the brake caliper and rotor.
Locate the brake caliper, which is attached to the steering knuckle. There are two bolts that hold it in place. Remove these bolts and then remove the brake caliper. The brake rotor should now be visible. Remove it by removing the two bolts that hold it in place.
Step 4: Clean the brake rotor mounting surface.
Clean the brake rotor mounting surface on the steering knuckle with a wire brush. This will remove any dirt or rust that could interfere with the proper installation of the new brake rotor.
Step 5: Install the new brake rotor.
Place the new brake rotor onto the steering knuckle and align the bolt holes. Start the two bolts that hold the brake rotor in place. Then, tighten the lug nuts on the wheel.
Step 6: Lower the vehicle and test the brakes.
Lower the vehicle until it is resting on the ground. Then, test the brakes to ensure that they are working properly.