Mercedes-Benz GLB Owner's Manual page 236

The distance warning function can aid you in the following situations with an intermittent warning tone and a warning lamp:
Vehicles
travelling in
front
Vehicles Up to approx.
without Driv‐ 250 km/h
ing Assis‐
tance Pack‐
age
Vehicles with Up to approx.
Driving Assis‐ 250 km/h
tance Pack‐
age
Stationary Crossing
vehicles vehicles
Up to approx. No reaction
80 km/h
Up to approx. Up to approx.
100 km/h 70 km/h
Moving Stationary
pedestrians pedestrians
Up to approx. No reaction
80 km/h
Up to approx. Up to approx.
80 km/h 70 km/h
Driving and parking 233
Crossing Cyclists travel‐
cyclists ling in front
Up to approx. Up to approx.
60 km/h 80 km/h
Up to approx. Up to approx.
70 km/h 80 km/h
Stationary
cyclists
No reaction
Up to approx.
70 km/h