Dodge 2014 Charger - Owner Manual - Manual (Page 120)

Overtaking Traffic
If you pass another vehicle slowly (with a relative speed
of less than 15 mph (24 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 15 mph
(24 km/h), the warning light will not illuminate.
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/Approaching
118 UNDERSTANDING THE FEATURES OF YOUR VEHICLE