Mercedes-Benz GLB Owner's Manual page 264

Problem
Rear 1 or all-round 2 segments light
up red. The é symbol appears in
the multifunction display.
Rear 1 or all-round 2 segments light
up red. At the same time, a warning
tone sounds for approximately two sec‐
onds every time the vehicle is started.
The é symbol appears in the multi‐
function display.
Function of the passive side impact protec‐
tion
Passive side impact protection is an additional
Parking Assist PARKTRONIC function which
warns the driver about obstacles at the side of
the vehicle. A warning is issued when obstacles
are detected between the front and rear detec‐
tion range. In order for an object on the side to
be detected, the sensors in the front and rear
bumper must first detect the object while you
are driving past it.
Possible causes/consequences and
Check if Parking Assist PARKTRONIC is working at a different location.
#
The sensors are dirty.
Clean the sensors and observe the notes on care of vehicle parts (
#
Parking Assist PARKTRONIC has been deactivated due to a malfunction.
Start the vehicle again.
#
If the problem persists, consult a qualified specialist workshop.
#
During the parking procedure or manoeuvring,
objects are detected as the vehicle drives past.
If you steer in the direction of a detected obsta‐
cle and there is a risk of a lateral collision, a
warning is issued. The segments on the sides
light up yellow or red, depending on the distance
to the obstacle.
M M Solutions
/
Segment colour depending on distance
Colour
Yellow
Red
In order for lateral front or rear segments to be
displayed, the vehicle must first travel a distance
of at least half of the vehicle length. Once the
vehicle has travelled the length of the vehicle, all
Driving and parking 261
page 497).
Lateral distance
Approx. 30 - 60 cm
Approx. < 30 cm