RAM 2500 2020 Owner's Manual page 305

If an obstacle is detected in the left and/or right
rear region, the display will show a single arc in
the left and/or right rear region and the system
will produce a tone. As the vehicle moves closer
to the obstacle, the display will show the single
Greater than
Rear Distance
79 inches
(inches/cm)
(200 cm)
Audible Alert
None
Chime
Arcs-Left None
Arcs-Center None
Arcs-Right None
Radio Volume
No
Reduced
arc moving closer to the vehicle and the tone
will change from a single 1/2 second tone to
slow, to fast, to continuous.
WARNING ALERTS FOR REAR
79-59 inches 59-47 inches
(200-150 cm) (150-120 cm)
Single 1/2
Slow
Second Tone
None None
6th Solid 5th Solid
None None
Yes Yes
The vehicle is close to the obstacle when the
display shows one flashing arc and sounds a
continuous tone. The following chart shows the
warning alert operation when the system is
detecting an obstacle:
47-39 inches 39-25 inches
(120-100 cm) (100-65 cm)
Slow Fast
None None
4th Solid 3rd Flashing
None None
Yes Yes
STARTING AND OPERATING 303
Less than
25-12 inches
12 inches
(65-30 cm)
(30 cm)
Fast Continuous
2nd Flashing 1st Flashing
2nd Flashing 1st Flashing
2nd Flashing 1st Flashing
Yes Yes
5