Mercedes-Benz GLB Owner's Manual page 584

Display messages
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Before starting the engine,
turn the steering wheel.
Active bonnet malfunction
See Owner's Manual
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Possible causes/consequences and
* The electric steering lock could not unlock the steering.
Switch the ignition off.
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To unlock the steering, move the steering wheel slightly to the left and right.
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Switch the ignition back on.
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* The active bonnet (pedestrian protection) is malfunctioning or inoperative after having already been triggered.
Consult a qualified specialist workshop.
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* At least one door is open.
Close all doors.
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* The bonnet is open.
& WARNING Risk of accident due to driving with the engine bonnet unlocked
An unlocked engine bonnet may open up when the vehicle is in motion and block your view.
Never unlock the engine bonnet when driving.
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Before every trip, ensure that the engine bonnet is locked.
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Stop the vehicle immediately, paying attention to road and traffic conditions.
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Close the bonnet.
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Display messages and warning/indicator lamps 581
M M Solutions