2016 Versa S sedan 5 speed manual. Last night while driving home I was in stop and go traffic. While stopped I noticed my brake pedal would drop every time the A/C compressor would cycle on. A few times the brake pedal went almost to the floor. I have never noticed this with my car before. I only have 3500 miles on the car. I am assuming the brake pedal will move slightly as the A/C cycles on. However going almost to the floor means there is something wrong. Fluid level is fine. Can anyone tell me if their brake pedal moves while the car is stopped and the A/C cycles on? I think moving a little is normal but what my car did means a trip to the dealer.