Dodge RAM TRUCK 15002017 Owner's Manual page 156

154 UNDERSTANDING THE FEATURES OF YOUR VEHICLE
The system will indicate a detected obstacle by showing a
single arc in the left and/or right rear regions based on the
object's distance and location relative to the vehicle.
If an object is detected in the left and/or right rear region,
the display will show a single solid arc in the left and/or
right rear region and the system will produce a tone. As the
vehicle moves closer to the object, the display will show the
single arc moving closer to the vehicle and the tone will
change from a single 1/2 second tone to slow, to fast, to
continuous.
Slow Tone
Single 1/2 Second Tone