Dodge 2014 Grand Caravan Owner's Manual page 251

The following chart shows the warning alert operation
when the system is detecting an obstacle:
Rear Distance Greater than
(in/cm) 79 in (200 cm)
Audible Alert
Chime
Arcs
Radio Volume
Reduced
NOTE: ParkSense® will reduce the radio volume, if on,
when the system is sounding an audio tone.
WARNING ALERTS
79-39 in
(200-100 cm)
None Single 1/2
Second Tone
None 3 Solid
(Continuous)
No Yes
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 249
39-25 in 25-12 in
(100-65 cm) (65-30 cm)
Slow Fast
3 Slow 2 Slow
Flashing Flashing
Yes Yes
Less than
3
12 in (30 cm)
Continuous
1 Slow
Flashing
Yes