I can press on the brake pedal when car is off or on and there is a kind of quirky sound made. I can hear a pump sound and then a squeaking or quirky sound. It happens every time I press the pedal when it is stopped, either on or off.
If it's a sound you haven't heard before and you can't determine what the cause is.....best to have it checked at the dealer. Last thing you want is for you to not be able to stop properly because you've lost your power brakes.
