Mercedes-Benz GLA 250 2019 Operator's Manual page 222

Display messages
220
Display messages
Lane Keeping Lane Keeping
Assist Currently Assist Currently
Unavailable See Unavailable See
Operator's Manual Operator's Manual
Lane Keeping Lane Keeping
Assist Inoperative Assist Inoperative
Blind Spot Assist Blind Spot Assist
Currently Unavaila‐ Currently Unavaila‐
ble See Operator's ble See Operator's
Manual Manual
Blind Spot Assist Blind Spot Assist
Inoperative Inoperative
Active Parking Active Parking
Assist Canceled Assist Canceled
Possible causes/consequences and M M Solutions
Lane Keeping Assist is deactivated and temporarily inoperative.
Possible causes are:
the windshield in the camera's field of vision is dirty
R
visibility is impaired due to heavy rain, snow or fog
R
there have been no lane markings for an extended period
R
the lane markings are worn away, dark or covered up, e.g. by dirt
R
or snow
When the causes stated above no longer apply, the display message
disappears.
Lane Keeping Assist is operational again.
If the display message does not disappear:
Pull over and stop the vehicle safely as soon as possible, paying
X
attention to road and traffic conditions.
Secure the vehicle against rolling away (
X
Clean the windshield.
X
Lane Keeping Assist is defective.
Visit a qualified specialist workshop.
X
Blind Spot Assist is temporarily inoperative.
Possible causes are:
the radar sensor system is temporarily inoperative, e.g. due to
R
electromagnetic radiation emitted by nearby TV or radio stations
or other sources of electromagnetic radiation
the radar sensor system is outside the operating temperature
R
range
The yellow 9 indicator lamps also light up in the exterior mirrors.
When the causes stated above no longer apply, the display message
disappears.
Blind Spot Assist is operational again.
If the display message does not disappear:
Pull over and stop the vehicle safely as soon as possible, paying
X
attention to road and traffic conditions.
Secure the vehicle against rolling away (
X
Restart the engine.
X
Blind Spot Assist is malfunctioning.
The yellow 9 indicator lamps also light up in the exterior mirrors.
Visit a qualified specialist workshop.
X
The driver's door is open and the driver's seat belt has not been fas-
tened.
Repeat the parking process with the seat belt fastened and the
X
driver's door closed.
page 145).
Y
page 145).
Y