Mercedes-Benz GLA 180 Owner's Manual page 211

Driving systems
208
If Traffic Sign Assist is unable to determine a
maximum permitted speed from any of the avail-
able sources, no speed limit is displayed in the
instrument cluster either.
Traffic Sign Assist is not available in all coun-
tries. In this case, display : is shown in the
multifunction display.
Important safety notes
Traffic Sign Assist is only an aid and is not always
able to correctly display speed limits and over-
taking restrictions. Traffic signs always have pri-
ority over the Traffic Sign Assist display.
The system may be either functionally impaired
or temporarily unavailable in the following sit-
uations:
Visibility is poor, e.g. due to snow, rain, fog or
R
spray
Glare, e.g. from the sun being low in the sky
R
Dirt, ice or misting on the windscreen in the
R
vicinity of the camera
Traffic signs are hard to detect (dirt, ice,
R
snow)
Traffic signs are insufficiently lit at night
R
Signs are ambiguous (e.g. traffic signs on con-
R
struction sites or in adjacent lanes)
Information in the digital street map of the
R
navigation system is incorrect or out of date
Activating Traffic Sign Assist
If you have activated the Traffic Sign Assist dis-
play in the on-board computer, the traffic regu-
lations (speed limits and overtaking restrictions)
are displayed in the instrument cluster for five
seconds in each case. The wrong-way warning
and the traffic sign display for speed limits and
overtaking restrictions remain active in the
assistance graphic even when the display has
been deactivated.
Activate the Traffic Sign Assist display using
X
the on-board computer (
Instrument cluster display
Speed limit with unknown restriction
i
The following illustrations are examples of
vehicles with colour multifunction display.
The illustrations of vehicles with black and
white multifunction display differ from them.
i
The unit for the speed limit (km/h or mph)
depends on the country in which you are driv-
ing. It is generally shown neither on the traffic
sign nor in the instrument cluster but must be
taken into account when observing the max-
imum permitted speed.
Maximum permissible speed
:
Maximum permissible speed for vehicles for
;
which the restriction in the additional sign is
relevant
Additional sign for unknown restriction
=
A maximum permissible speed of 80 km/h
(80 mph) and a speed limit of 60 km/h (60 mph)
with an unknown restriction apply.
page 226).
Y