See also:

Canceling Parking Guidance
Press the PARKTRONIC button on the center console. Parking Guidance is canceled immediately and PARKTRONIC is deactivated. Parking Guidance is canceled automatically if it is no longer poss ...

Mercedes-Benz M-Class Owners Manual
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Problems with your vehicle
If you should experience a problem with your vehicle, particularly one that you believe may affect its safe operation, we urge you to contact an authorized Mercedes-Benz Center immediately to ...