Hey guys. I’ve had the same problem.
no one has addressed their parking brake.
Car stopped wheels not rolling. Pressing brake hard causes the creaking. I thought it was the caliper pins or the pad backing plates where they ride on the caliper mount. Removed and luned all moving parts on service brake. No improvement. It isnt the friction material because it happens when not moving. The other day a guy parked next to me in his suburban, doing the same thing. It made a louder creak when setting his PARKING brake. Eureka!! I pulled the calipers off, and removed the rotor. I lubricated the parking shoes backing plate, and all the retaining springs holding shoes together. That fixed it. Pressing the brake causes the rotor to flex just enough to cause the rotor to move the parking brake shoes. Good luck.