Mercedes-Benz CLA Owner's Manual page 592

Warning/indicator lamp
7
Seat belt warning lamp
flashes
Driving systems
Warning/indicator lamp
L
Warning lamp for distance
warning function
Possible causes/consequences and
If you have placed objects on the front passenger seat, the seat belt warning lamp may remain lit.
The red seat belt warning lamp flashes and an intermittent warning tone sounds.
The driver or front passenger has not fastened their seat belt while the vehicle is in motion.
Fasten your seat belt( page 39).
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There are objects on the front passenger seat.
Remove the objects from the front passenger seat.
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Possible causes/consequences and
The red distance warning lamp lights up while the vehicle is in motion.
The distance to the vehicle in front is too small for the speed selected.
If there is an additional warning tone, you are approaching an obstacle at too high a speed.
Be prepared to brake immediately.
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Increase the distance.
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Function of Active Brake Assist (
M M Solutions
M M Solutions
page 197).
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Display messages and warning/indicator lamps 589