Driving and parking -> Vehicle towing instructions for Your Mercedes GLC Class SUV First generation (2015-2021)

Driving and parking 251  
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Uncouple the trailer.  
Place the cover on the ball neck mount.  
NOTE Damage when uncoupling in a  
state of overrun  
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Uncoupling in a state of overrun can damage  
the vehicle.  
Vehicle towing instructions  
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Do not uncouple trailers with an  
engaged overrun brake.  
The vehicle is not suitable for the use of tow bar  
systems that are used for flat towing or dinghy  
towing, for example. Attaching and using tow bar  
systems can lead to damage on the vehicle.  
When you are towing a vehicle with tow bar sys‐  
tems, safe driving characteristics cannot be  
guaranteed for the towing vehicle or the towed  
vehicle. The vehicle-trailer combination may  
swerve from side to side. Comply with the per‐  
mitted towing methods (/ page 449) and the  
instructions for towing with both axles on the  
ground (/ page 450).  
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WARNING Risk of becoming trapped  
when disconnecting the trailer cable  
Vehicles with level control system: The  
vehicle may lower when the trailer cable is  
disconnected.  
This could result in you or other people  
becoming trapped if your or their limbs are  
between the vehicle body and the tires or  
underneath the vehicle.  
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Make sure that nobody is underneath  
the vehicle or in the immediate vicinity  
of the wheel arches when you discon‐  
nect the trailer cable.  
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Disconnect the electrical connection  
between the vehicle and the trailer.