CADILLAC SRX BRAKE LIGHT NOT WORKING

However, When I Put It In The Parking Light Position Or The On Position It Works Fine. What Is A Solution To The Problem Or The Best Way To...

When I Press My Brake Pedal The Brake Lights Do Not Work, But The Tail Lights Do Work.

Pass. Side Tail Lamp Lights But Turn Signal And Brake Lamp Do Not Work Front T/s Works Although