Mercedes-Benz GLA Series Operator's Manual page 181

permitted within the urban area. The speed limit
display in the Instrument Display is always upda‐
ted when the vehicle is level with the traffic sign.
If there is no speed restriction on an unlimited
stretch of road (e.g. on a freeway), the recom‐
mended speed is automatically adopted as the
stored speed. The system uses the speed stored
on an unlimited stretch of road as the recom‐
mended speed. If you do not alter the stored
speed on an unlimited stretch of road, the rec‐
ommended speed is 80 mph (130 km/h).
If Active Distance Assist DISTRONIC has been
put into passive mode by pressing the accelera‐
tor pedal, only speed limits which are higher
than the set speed are adopted.
Observe the notes on driving systems and your
responsibility; you may otherwise fail to recog‐
nize dangers ( page 161).
/
System limits
The system limits of Traffic Sign Assist apply to
the detection of traffic signs .
Speed limits below 12 mph (20 km/h) are not
automatically adopted by the system as the
stored speed. Temporary speed restrictions (e.g.
for a certain time or due to weather conditions)
cannot be properly detected by the system. The
maximum permissible speed applying to a vehi‐
cle with a trailer is not detected by the system.
Adjust the speed in these situations.
& WARNING Risk of accident due to Active
Speed Limit Assist adapting the vehicle's
speed
The speed adopted by Active Speed Limit
Assist may be too high or incorrect in some
individual cases, such as:
at speed limits below 12 mph (20 km/h)
R
in wet conditions or in fog
R
when towing a trailer
R
Ensure that the driven speed complies
#
with traffic regulations.
Adjust the driving speed to suit current
#
traffic and weather conditions.
Driving and parking 179
Active Steering Assist
Function of Active Steering Assist
Active Steering Assist is only available up to a
speed of 130 mph (210 km/h). The system helps
you to stay in the center of the lane by means of
moderate steering interventions. Depending on
the speed driven, Active Steering Assist uses the
vehicles ahead and lane markings as a refer‐
ence.
% Depending on the country, in the lower
speed range Active Steering Assist can use
the surrounding traffic as a reference. If nec‐
essary, Active Steering Assist can then also
provide assistance when driving outside the
center of the lane, for example to form a res‐
cue lane.
If the detection of lane markings and vehicles
ahead is impaired, Active Steering Assist
switches to passive mode. The system provides
no support in this case.
Status display of Active Steering Assist in
the multifunction display
Ø (gray): activated and passive
R
Ø (green): activated and active
R