See also:

Seat belt
Display messages Possible causes/consequences and Solutions After starting the engine, the red seat belt warning lamp lights up for six seconds. The seat belt warning lam ...

Belt warning for the driver and front passenger
Regardless of whether the driver and front passenger have fastened their seat belts already, the seat belt warning lamp lights up for 6 seconds after every engine start. It then goes out if the d ...

Safety
The GLK350 sports all the active safety systems you'd expect in a modern mom's car (especially a Mercedes): six airbags - including dual-stage driver and front passenger airbags and side curtain a ...