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.

SmartKey and replace it if necessary. Check the battery in the SmartKey and replace it if necessary.
mechanical key. Unlock the driver's door using the mechanical key.
mechanical key. Lock the vehicle using the mechanical key.
battery contacts checked at a qualified specialist workshop. Have the starter battery and the battery contacts checked at a qualified specialist workshop.

If the SmartKey is faulty, contact Roadside Assistance or a qualified specialist workshop.

    See also:

    Warning and display messages in the multifunction display
    – Activate ATTENTION ASSIST using the onboard computer (Y page 232). Symbol 1 appears in the multifunction display. – If necessary, take a break. – Press or to confirm the message. On l ...

    Resetting values
    You can reset the values of the following functions: Trip odometer Trip computer "From start" Trip computer "From reset"   Press the or button on the steeri ...

    Treadwear indicators
    Narrow bars (tread wear bars) that are distributed over the tire tread. If the tire tread is level with the bars, the wear limit of 1/16 in (1.6 mm) has been reached. ...