Mercedes-Benz GLC : Status of the front passenger front airbag / Function of the PASSENGER AIR BAG indicator lamps

The automatic front passenger airbag shutoff is
able to detect whether the front passenger seat
is occupied by a person or a child restraint system.
The front passenger airbag is enabled or
disabled accordingly...
When the ignition is switched on, a self-test is
performed during which the two PASSENGER
AIR BAG ON and OFF indicator lamps light up
simultaneously...
Other information:
When Active Distance Assist DISTRONIC is activated,
the vehicle speed will be adapted accordingly
to the route events ahead. Depending on
the drive program selected, the vehicle negotiates
a route event ahead in an economical, comfortable
or dynamic manner...
You can no longer lock or unlock the vehicle
Possible causes:
The SmartKey battery is weak or discharged.
The SmartKey is faulty.
Check the battery using the indicator lamp.
Replace the SmartKey battery, if necessary.
Use the emergency key to lock or unlock...