See also:

Remote vehicle unlocking
If you have unintentionally locked your vehicle (e.g. the SmartKey is still in the vehicle) and a replacement SmartKey is not available, the vehicle can be opened by a Mercedes-Benz Customer A ...

2011 Mercedes-Benz GLK-Class Review
It's funny how an automaker can be ahead of the curve one moment and playing catch-up the next. Mercedes-Benz helped make luxury SUVs mainstream when it debuted the midsize M-Class for the 1998 mo ...

Using the SmartKey
The SmartKey must be close to the driver's door handle. - Point the tip of the SmartKey at the driver's door handle. - Press and hold the button until the side windows and the sliding s ...