Other information:
Requirements:
The electric parking brake is released.
ESP® is activated and is not intervening.
The transmission is in position
.
The driver's door is closed.
Check of the radar sensor system has been
successfully completed.
Parking Assist PARKTRONIC is not being
used to park the vehicle or to exit from a
parking space...
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...