Mercedes-Benz GLS Owner's Manual page 460

Display messages
Side running board not
retracted Observe the
excess width of the vehicle
Possible causes/consequences and
Uncouple the coupled trailer and secure it against rolling away.
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If the ball neck has been retracted: initiate a new swivel movement (
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The ball neck will engage vertically in the locked position and then engage beneath the bumper.
If the ball neck has been extended: initiate a new swivel movement (
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The ball neck will engage beneath the bumper.
If the display message does not disappear, the trailer hitch is malfunctioning and the ball neck is not locked.
Do not couple up the trailer. Drive on without the trailer. Note the reduced ground clearance due to the
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unlocked ball neck.
Consult a qualified specialist workshop.
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* Mercedes-Maybach vehicles: the running boards are not retracted.
The running boards can be retracted via the multimedia system only when the vehicle is stationary
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( page 88).
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The running boards and the side skirt must be free of dirt, ice and snow. Otherwise, they are unable to retract.
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Clean the running boards (
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Repeat the retraction of the running boards (
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If the running boards cannot be retracted again, consult a qualified specialist workshop.
If the running boards are not retracted, check the excess width of the vehicle.
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M M Solutions
page 379).
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page 87).
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Display messages and warning/indicator lamps 457
page 301).
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page 301).
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