Mercedes-Benz GLS Owner's Manual page 305

302 Driving and parking
* NOTE Damage to the all-electric trailer
hitch due to additional pressure
The all-electric trailer hitch could be mechan‐
ically damaged by applying additional pres‐
sure when the ball neck is being extended or
retracted.
Do not make the ball neck extend/
#
retract faster by applying additional
pressure.
* NOTE Increased risk of damage to prop‐
erty due to folded-out ball neck
When the trailer is not coupled or the
#
bicycle rack is attached, fold in the ball
neck or, in the case of a fully electric
trailer hitch, retract the ball neck.
* NOTE Damage to the vehicle due to
incorrect use of the trailer hitch
When a trailer hitch is used to recover a vehi‐
cle, the vehicle may be damaged in the proc‐
ess.
Use the trailer hitch only for pulling a
#
trailer or attaching approved carrier
systems (e.g. a bicycle rack).
Requirements:
The vehicle is secured against rolling away.
R
The swivel range is clear.
R
The trailer cables or adapter plugs have been
R
removed.
Extending the ball neck fully electrically
Pull button 1.
#
Indicator lamp 2 will flash and the mes‐
sage Trailer coupling extending...
on the multifunction display.
The ball neck will extend fully electrically.
will appear