Mercedes-Benz GLC : Display messages and warning/indicator lamps / Warning and indicator lamps
Some systems will perform a self-test when the
ignition is switched on. Some indicator and
warning lamps may briefly light up or flash. This
behavior is non-critical...
Other information:
If Active Blind Spot Assist detects a risk of a side
impact in the monitoring range, a course-correcting
brake application is carried out. This is
designed to help you avoid a collision.
The course-correcting brake application is available
in the speed range between approximately
20 mph (30 km/h) and 125 mph (200 km/h)...
Y..