The concept
If the vehicle is equipped with Active Cruise Control with Stop & Go, the collision warning is controlled via the cruise control radar sensor.
The system issues a two-phase warning of a danger of collision at speeds above approx.
10 mph/15 km/h. The time of these warnings may vary depending on the current driving situation.
The collision warning is available even if cruise control has been deactivated.

It responds to stationary or moving objects that are within the detection range of the radar system.
When the vehicle is intentionally brought into contact with a vehicle, the collision warning is delayed to avoid false warnings.
See also:
Low tire pressure message
The yellow warning lamp
lights up. A
Check Control message is displayed.
► There is a flat tire or a major loss in
tire inflation pressure.
► The system was not reset after ...
Warning triangle
The warning triangle is located in the cargo area. ...
Fuel quality
Fuels that are marked on the gas pump as containing
metal must not be used.
Refuel only with unleaded
gasoline without
metallic additives.
Do not refuel with any leaded gasoline or gasoline
...
