Mercedes-Benz GLA 180 Owner's Manual page 198

Automatic transmission:
Transmission posi-
tion
h
k, i or the vehicle
is rolling backwards
j
One or more segments light up as the vehicle
approaches an obstacle, depending on the vehi-
cle's distance from the obstacle. In addition,
warning tones are emitted.
When the distance to the obstacle is sufficient,
you will hear an intermittent warning tone. The
shorter the distance to the obstacle, the shorter
the frequency of the intermittent warning tones
becomes. When the minimum distance is
reached, you hear a continuous warning tone.
Problems with Parking Assist PARKTRONIC
Problem
Only the red segments in
the Parking Assist
PARKTRONIC warning
displays are lit. You also
hear a warning tone for
approximately two sec-
onds.
Parking Assist
PARKTRONIC is then
deactivated and the indi-
cator lamp on the
PARKTRONIC button
lights up.
Only the red segments in
the Parking Assist
PARKTRONIC warning
displays are lit. Parking
Assist PARKTRONIC is
then deactivated.
Warning display
Front area activated
Rear and front areas
activated
No areas activated
Possible causes/consequences and M M Solutions
Parking Assist PARKTRONIC is malfunctioning and has been deacti-
vated.
If problems persist, have Parking Assist PARKTRONIC checked at a
X
qualified specialist workshop.
The Parking Assist PARKTRONIC sensors are dirty or malfunctioning.
Clean the Parking Assist PARKTRONIC sensors (
X
Switch the ignition back on.
X
The problem may be caused by an external source of radio or ultra-
sound waves.
Check to see if Parking Assist PARKTRONIC functions in a different
X
location.
Activating/deactivating Parking Assist
PARKTRONIC
Indicator lamp
:
Deactivates/activates Parking Assist
;
PARKTRONIC
If indicator lamp : lights up, Parking Assist
PARKTRONIC is deactivated.
i
Parking Assist PARKTRONIC is automati-
cally activated when you turn the key to posi-
tion 2 in the ignition lock.
Driving systems
page 311).
Y
195
Z