Mercedes-Benz GLS Owner's Manual page 492

Display messages
Á
Please reduce speed
Á
Compressor is cooling
Cannot reach selected
level when rear fog lamp is
switched on
Parking Assist and
PARKTRONIC inoperative
See Owner's Manual
Possible causes/consequences and
* You are driving too fast for the selected vehicle level.
Drive more slowly and then select the desired vehicle level again.
#
You are driving too quickly with a trailer or the trailer hitch socket is being used, e.g. for a rear cycle rack.
Read the notes on trailer operation.
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* Due to frequent level changes within a short space of time, the compressor first needs to cool down in order to set
the selected vehicle level.
When the compressor has cooled down, the vehicle will continue rising to the selected vehicle level.
Drive on in a manner appropriate for the current level. Make sure that there is sufficient ground clearance.
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* You cannot select off-road level +3.
Switch off the rear fog lamp.
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* Vehicles with Active Parking Assist: Active Parking Assist and Parking Assist PARKTRONIC are malfunctioning.
Vehicles without Active Parking Assist: Parking Assist PARKTRONIC is malfunctioning.
Stop the vehicle in accordance with the traffic conditions and restart the vehicle.
#
If the display message still appears, consult a qualified specialist workshop.
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Display messages and warning/indicator lamps 489
M M Solutions