Dodge Charger SRT Hellcat 392 2016 Owner's Manual page 130

128 UNDERSTANDING THE FEATURES OF YOUR VEHICLE
Overtaking Traffic
If you pass another vehicle slowly (with a relative speed
of less than 16 mph (25 km/h) and the vehicle remains in
the blind spot for approximately 1.5 seconds, the warning
light will be illuminated. If the difference in speed
between the two vehicles is greater than 16 mph
(25 km/h), the warning light will not illuminate.
Overtaking/Approaching
The BSM system is designed not to issue an alert on
stationary objects such as guardrails, posts, walls, foliage,
berms, etc. However, occasionally the system may alert
on such objects. This is normal operation and your
vehicle does not require service.
Overtaking/Passing