Problems with the SmartKey
| Problem | Possible causes/consequences and
Solutions |
| You cannot lock or unlock the vehicle using the SmartKey. | The SmartKey battery is discharged or nearly discharged. Try again to lock/unlock the vehicle using the remote control
function of the SmartKey. Point the tip of the SmartKey at the
driver's door handle from close range and press the
/
button.If this does not work: Check the SmartKey battery and replace it if necessary. Lock or unlock the vehicle using the mechanical key. |
The SmartKey is faulty. Lock or unlock the vehicle using the mechanical key. Have the SmartKey checked at a qualified specialist workshop. |
|
| You can no longer lock or unlock the vehicle using KEYLESS-GO. | KEYLESS-GO is in standby mode because the vehicle has not been
unlocked for an extended period. Pull the door handle twice and then insert the SmartKey into the
ignition lock. |
There is interference from a powerful source of radio waves. Lock/unlock the vehicle using the remote control function of the
SmartKey. Point the tip of the SmartKey at the driver's door handle from
close range and press the /
button. |
|
There is a malfunction with KEYLESS-GO. Lock/unlock the vehicle using the remote control function of the
SmartKey. Point the tip of the SmartKey at the driver's door handle from
close range and press the /
button. Have KEYLESS-GO checked at a qualified specialist workshop.If this does not work: Check the SmartKey battery and replace it if necessary. Lock or unlock the vehicle using the mechanical key. |
|
| You have lost a SmartKey. | Have the SmartKey deactivated at a qualified specialist
workshop. Report the loss immediately to the vehicle insurers. If necessary, have the locks changed as well. |
| You have lost the mechanical key. | Report the loss immediately to the vehicle insurers. If necessary, have the locks changed as well. |
| The engine cannot be started using the SmartKey. | The on-board voltage is too low. Remove the SmartKey and reinsert it into the ignition lock. Start the engine within 30 seconds of inserting the SmartKey in the
ignition lock. Repeat if necessary.If the engine does not start after several attempts: Check the starter battery and charge it if necessary.or Jump-start the vehicle.or Consult a qualified specialist workshop. |
| The engine cannot be started using KEYLESS-GO. The SmartKey is in the vehicle. | A door is open. Therefore, the SmartKey cannot be detected as
easily. Close the door and try to start the vehicle again. |
There is interference from a powerful source of radio waves. Start your vehicle with the SmartKey in the ignition lock. |
See also:
Driving systems
Display messages
Possible causes/consequences and
Solutions
Based on specific criteria, ATTENTION ASSIST has determined that the
driver is tired or paying less attention ...
Activating audio AUX mode
When you connect an external audio source,
audio AUX is not selected automatically.
Select Audio in the main function bar by
sliding and turning
the COMAND
controller and press to confirm. ...
Introduction
In the DriveAssist. menu you can:
• show the distance display
• activate/deactivate ESP®
• activate/deactivate PRE-SAFE® Brake
• activate/deactivate ATTENTION ASSIST
• activate/deactivate Blind ...

Solutions
Try again to lock/unlock the vehicle using the remote control
function of the SmartKey. Point the tip of the SmartKey at the
driver's door handle from close range and press the
/
button.