Mercedes-Benz GLC : Coupling/uncoupling a trailer / Uncoupling a trailer
WARNING Risk of being crushed and becoming trapped when uncoupling a trailer
When uncoupling a trailer with an engaged inertia-activated brake, your hand may become trapped between the vehicle and the trailer drawbar.
Do not uncouple trailers
with an
engaged overrun brake.
NOTE Damage when uncoupling in a state of overrun
Uncoupling in a state of overrun can damage the vehicle.
Do not uncouple trailers
with an
engaged overrun brake.
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.
Make sure that nobody is
underneath
the vehicle or in the immediate vicinity of the wheel arches when you disconnect
the trailer cable.
Disconnect the electrical
connection
between the vehicle and the trailer.
Uncouple the trailer.
Place the cover on the ball
neck mount.
Coupling up a trailer
NOTE Damage to the starter battery due
to full discharge
Charging the trailer battery using the power
supply of the trailer can damage the starter
battery...
Vehicle towing instructions
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...
Other information:
Mercedes-Benz GLC 2016-2025 Owners Manual: Refrigerant
Notes on refrigerant Observe the notes on operating fluids. NOTE Damage due to incorrect refrigerant If a non-approved refrigerant is used, the climate control system may be damaged. USA: use only R‑134a refrigerant. Canada: use only R‑1234yf refrigerant...
Mercedes-Benz GLC 2016-2025 Owners Manual: Adjusting the steering wheel mechanically
WARNING Risk of accident due to adjusting the vehicle settings while the vehicle is in motion You could lose control of the vehicle in the following situations in particular: If you adjust the driver's seat, the head restraint, the steering wheel or the mirror while the vehicle is in motion If you fasten your seat belt while the vehicle is in motion Before starting the engine: In particular, adjust the driver's seat, head restraint, steering wheel and mirror, and fasten your seat belt...
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Activating or deactivating the child safety lock for the rear side windows
To activate/deactivate: press button
. The rear side window can be opened or closed in the following cases:
is lit: via the switch on the driver's door
Indicator lamp 
is off: via the switch on the corresponding rear door or driver's door
