Mercedes-Benz GL-Class: Notes on towing a trailer
Important safety notes
WARNING 
When towing a trailer, incorrect equipment
and driving style could cause you to lose
control of the vehicle.
Towing incorrectly or not observing this
Operator's Manual could lead to damage to
the vehicle and/or serious injuries. Observe
the following guidelines to ensure safe trailer
towing.
Contact a Mercedes-Benz Center if you need
further explanation of the information
contained in this Operator's Manual.
General information
• Only install an approved trailer
coupling on
your vehicle.
Further information on availability and on
installation is available from any authorized
Mercedes-Benz Center.
• The bumpers of your vehicle are not
suitable for installing detachable trailer
couplings.
• Do not install hired trailer couplings or
other detachable trailer couplings on the
bumpers of your vehicle.
• To reduce the risk of damage to the ball
coupling, remove it from the ball coupling
recess when not in use.
Trailer towing
...
Coupling up a trailer
WARNING
While you are coupling or decoupling a trailer,
make sure nobody locks or unlocks the
vehicle and/or opens or closes doors or the
tailgate.
The vehicle's level could change an ...
See also:
Customer Assistance Offices (U.S. and Canada)
Buick encourages customers to call the toll-free number for assistance.
However, if a customer wishes to write or e-mail Buick, the letter should be
addressed to:
United States
Buick Customer Ass ...
Adjusting the head restraint heightelectrically
► To adjust the head restraint height:
slide
the switch for head restraint adjustment up or down in the direction of
the arrow. ...
Air bag system
WARNING
The components that make up the air bag system are sensitive to electrical or
physical interference, either of which could easily damage the system and cause
inadvertent operation or ...
