Mercedes-Benz 2013 GLS Class - Manual (Page 235)

R
on vehicles with a trailer tow hitch, the
electrical connection to the trailer has been
correctly established.
R ESP ® is deactivated.
R
the transmission is not in position D.
R
a loss of tyre pressure or a defective tyre
has been detected and displayed.
Active Lane Keeping Assist may is unable to
detect other road or traffic conditions. An
inappropriate brake application may be inter-
rupted at any time if:
R
you steer slightly in the opposite direction.
R
you use a turn signal.
R
you clearly brake or accelerate.
A lane-correcting brake application is inter-
rupted automatically if:
R
a driving safety system intervenes, such as
ESP
® , PRE-SAFE ® Brake or Active Blind
Spot Assist.
R
lane markings can no longer be recognised.
Activating Active Lane Keeping Assist
X Switch on Active Lane Keeping Assist using
the on-board computer; to do so, select
Standard or Adaptive ( Y page 254).
If you drive at speeds above 60 km/h and
lane markings are detected, the lines in the
assistance graphics display (
Y page 253)
are shown in green. Lane Keeping Assist is
ready for use.
If
Standard is selected, no warning vibra-
tion occurs if:
R
you have switched on the turn signals. In
this case, the warnings are suppressed
for a certain period of time.
R
a driving safety system intervenes, such
as ABS, BAS or ESP
® .
If Adaptive is selected, no warning vibra-
tion occurs if:
R
you have switched on the turn signals. In
this case, the warnings are suppressed
for a certain period of time.
R
a driving safety system intervenes, such
as ABS, BAS or ESP
® .
R
you accelerate hard, e.g. kickdown.
R
you brake hard.
R
you steer actively, e.g. swerve to avoid
an obstacle or change lane quickly.
R
you cut the corner on a sharp bend.
In order that you are warned only when nec-
essary and in good time if you cross the lane
marking, the system recognises certain con-
ditions and warns you accordingly.
The warning vibration occurs earlier if:
R
you approach the outer lane marking on a
bend.
R
the road has very wide lanes, e.g. a motor-
way.
R
the system recognises solid lane markings.
The warning vibration occurs later if:
R
the road has narrow lanes.
R
you cut the corner on a bend.
Towing a trailer
If you attach a trailer, make sure that you have
correctly established the electrical connec-
tion. This can be accomplished by checking
the trailer lighting.
Towing a trailer
Important safety notes
G WARNING
The braking system can overheat if you leave
your foot on the brake pedal while driving.
This increases the braking distance and could
even cause the braking system to fail. There
is a risk of an accident.
Never use the brake pedal as a footrest. Do
not simultaneously depress both the brake
pedal and the accelerator pedal while driving.
G WARNING
You could lose control of the vehicle/trailer
combination if it begins to swerve. The vehi-
cle/trailer combination could even overturn.
There is a risk of an accident.
Towing a trailer
233
Driving and parking
Z