Mercedes-Benz GLC 200 4MATIC Owner's Manual page 487

484 Display messages and warning/indicator lamps
Display messages
Head-up display currently
unavailable See Owner's
Manual
Head-up display inoperative
Head-up display Brightness
currently reduced See Own-
er's Manual
Possible causes/consequences and
* The head-up display is temporarily unavailable. Possible causes:
malfunctions in the power supply
R
signal interference
R
Stop in accordance with the traffic conditions and switch the vehicle off and on again.
#
If the display message still appears, consult a qualified specialist workshop.
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* The head-up display has an internal error.
Consult a qualified specialist workshop.
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* The brightness of the head-up display is reduced. Possible causes:
Dirt on the windscreen in the camera's field of vision
R
Faulty exterior brightness signals
R
Switch on the windscreen wipers.
#
Clean the windscreen if necessary.
#
Switch the vehicle off and switch it back on
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If the display message still appears, consult a qualified specialist workshop.
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Solutions
M