Mercedes-Benz S-Class Saloon W223 2021 Owner's Manual page 551

Display messages
Active Blind Spot Assist
inoperative
Active Lane Keeping Assist
currently unavailable See
Owner's Manual
Active Lane Keeping Assist
inoperative
Possible causes/consequences and
* Active Blind Spot Assist is malfunctioning.
Drive on
#
or
Stop the vehicle in accordance with the traffic conditions and restart the vehicle.
#
If the display message does not disappear: consult a qualified specialist workshop.
#
* Active Lane Keeping Assist is temporarily unavailable.
The ambient conditions are outside the system limits (
As soon as the ambient conditions are within the system limits, the system will become available again.
Drive on
#
* Active Lane Keeping Assist is malfunctioning.
Drive on
#
or
Stop the vehicle in accordance with the traffic conditions and restart the vehicle.
#
If the display message does not disappear: consult a qualified specialist workshop.
#
Solutions
M
page 256).
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P223 0288 02
Display messages and warning/indicator lamps 549