2022 MERCEDES-BENZ B-CLASS HATCHBACK Owners Manual

Display messages
Possible causes/consequences and P Solutions
6
Front left malfunction Con-
sult workshop (e
xample)* The corresponding restraint system is malfunctioning ( pag

e 48).&
WARNING Risk of injur
y due to malfunctions in the restraint system
Components in the restraint system may be activated unintentionally or not deploy as intended in an accident. 
Have the restraint system checked and repaired immediately at a q
ualiNed specialist workshop. Plug-in hybrid:
&
DANGER Risk of f
atal injuries due to restraint system malfunctions
Components in the restraint system may be activated unintentionally or not deploy as planned in an accident. In
t
he event of an accident, the high-voltage on-board electrical system may not be deactivated as intended.
You may suMer an electric shock if you touch the damaged components of the high-voltage on-board electrical
system. 
Have the restraint system checked and repaired immediately at a q
ualiNed specialist workshop. 
Aser an accident, switc
h oM the vehicle immediately. 422
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and P Solutions
6
Left windowbag malfunc-
tion Consult work-
shop (e
xample) * The corresponding restraint system is malfunctioning ( pag

e 48).&
WARNING Risk of injur
y or fatal injury due to a malfunction in the windowbag
The windowbag might be triggered unintentionally or might not be triggered at all in the event of an accident. 
Have the windowbag checked and repaired immediately at a q
ualiNed specialist workshop. Front-passenger airbag dis-
abled See Owner's Manual
* The front passenger airbag has been disabled even though an adult or a person of adult build is on the front passenger
seat. If additional f
orces are applied to the seat, the weight the system detects may be too low. &
WARNING !

Display messages
Possible causes/consequences and P Solutions
Front-passenger airbag
enabled See Owner's Man-
ual * The front passenger airbag will be enabled while the vehicle is in motion in the following situations:
= e
ven when a child, a small adult or an object weighing less than the system weight threshold is located on the front
passenger seat
= even when the front passenger seat is not occupied
The system may detect objects or forces that are adding to the weight applied to the seat. &
WARNING Risk of injur
y or death when using a child restraint system while the front passenger airbag is ena-
bled
If you secure a child in a child restraint system on the front passenger seat and the front passenger airbag is ena-
bled, t
he front passenger airbag can deploy in the event of an accident.
The child could be struck by the airbag. 
Ensure, both before and during the journey, that the status of the front passenger airbag is correct.
NEVER use a rearward facing child restraint on a seat protected by an ACTIVE AIRBAG in front of it, DEATH or
SERIOUS INJUR
Y to the CHILD can occur. 
Stop the vehicle immediately in accordance with the tr
aPc conditions. 
Make sure that no objects are trapped under the front passenger seat. 
Check the status of automatic front passenger airbag actuation (  pag
e 58).
If necessary, consult a q
ualiNed specialist workshop immediately. 424
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and P Solutions
PRE-SAFE inoperative See
Owner's Manual *
The PRE!

Display messages
Possible causes/consequences and P Solutions

Display messages
Possible causes/consequences and P Solutions

Display messages
Possible causes/consequences and P Solutions
% LED light sources: the display message for the corresponding light appears only when all the light-emitting diodes
in t
he light are faulty.
: Malfunction See Owner's
Manual * The exterior lighting is malfunctioning. 
Consult a q
ualiNed specialist workshop.
* Vehicles with a trailer hitch: a fuse ma
y have blown. 
Stop the vehicle in accordance with the tr
aPc conditions. 
Check the fuses and replace them if necessary (  pag
e 379).
:
Automatic driving lights
inoperative * The light sensor for automatic driving lights is malfunctioning. 
Consult a q
ualiNed specialist workshop.
:
Active Light System inoper-
ative * The active headlamps are malfunctioning. 
Consult a q
ualiNed specialist workshop.428
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and P Solutions
:
Switch on headlamps * You are driving without low-beam headlamps. 
Turn the light switch to the L or X position.
:
Switch off lights * You are leaving the vehicle and the lights are still switched on. 
Turn the light switch to the X position.
:
Intelligent Light System
inoperative * The Intelligent Light System is malfunctioning. The lighting system continues to function properly without the functions
of t he Intelligent Light System. 
Consult a q
ualiNed specialist workshop.
Adaptive Highbeam Assist
currently unavailable See
Owner's Manual * Adaptive Highbeam Assist is temporarily unavailable.
The sy
stem limits have been reached (  page 147).
Once the cause of the problem is no longer present, the system will be available again. The Adaptive Highbeam
Assist available again display message will appear. 
Drive on Display messages and warning/indicator lamps
429