See also:

Rejecting or ending a call
► Press the button on the steering wheel. If you are not in the Telephone menu, you can still accept a call. ...

General notes
If you cannot lock or unlock the vehicle with the SmartKey, either the battery in the SmartKey is discharged, the SmartKey is faulty or the starter battery is discharged. Check the battery in ...

2010 Mercedes-Benz GLK-Class Review
In many parts of the world, Mercedes-Benz cars and trucks are sought for their utilitarian value. A cab driver in South Africa or a delivery truck driver in Kazakhstan is less impressed with the M ...