RAM 1500 CLASSIC 2020 Owner's Manual page 212

210 STARTING AND OPERATING
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:
Rear Distance
(inches/cm) 79 inches (200 cm)
Front Distance
(inches/cm) 47 inches (120 cm)
Audible Alert (Chime)
Arcs
Radio Volume Reduced
NOTE:
ParkSense will reduce the volume of the radio, if on, when the system is sounding an audio tone.
Greater than 79-45 inches
(200-115 cm)
Greater than 47-39 inches
(120-100 cm)
Single 1/2 Second
None
Tone (for rear only)
None 4th Solid
No Yes
WARNING ALERTS
45-31 inches
(115-80 cm)
39-25 inches
(100-65 cm)
Slow (for rear only)
3rd Solid
Yes
31-18 inches Less than
(80-45 cm) 18 inches (45 cm)
25-12 inches Less than
(65-30 cm) 12 inches (30 cm)
Fast Continuous
2nd Flashing 1st Flashing
Yes Yes