Mercedes-Benz GL-Class: General information - SmartKey - Opening/closing - Mercedes-Benz GL-Class Owner's ManualMercedes-Benz GL-Class: General information

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 the SmartKey and replace it if necessary.
Unlock the driver's door using the mechanical key.
Lock the vehicle.
Have the starter battery and battery contacts checked at an authorized Mercedes-Benz Center.

If the SmartKey is faulty, contact Roadside Assistance or an authorized Mercedes-Benz Center.

    Important safety notes
    WARNING   When leaving the vehicle, always remove the SmartKey from the ignition lock. Always take the SmartKey with you and lock the vehicle. Do not leave children unsupervised in the ...

    See also:

    Vehicle Security
    This vehicle has theft-deterrent features; however, they do not make it impossible to steal. ...

    Direction indicators (green)
    The appropriate warning lamp will flash when the direction indicators are operated. ...

    Telephone safety
    WARNING Use of your mobile telephone while you are driving is dangerous as it diverts attention from the traffic situation. If you wish to use your telephone, stop at an appropriate place wh ...