Controlling Audible Feedback You can use Park Assist with or without audible feedback. To turn chimes on or off, touch Controls > Safety & Security > Park Assist Chimes. To mute the chimes temporarily, press the scroll button on the left side of the steering wheel or touch the mute button in the corner of the Park Assist view. The chimes are muted until you shift into a different gear or drive over 5 mph (8 km/h).