Problem

The indicator lamp illuminates and remains illuminated. The person on the front-passenger seat:

• has the weight of a typical adult
• has been determined by the system not to be a child.

Possible causes/consequences and Solutions

The OCS is malfunctioning.

• Have the OCS checked as soon as possible at an authorized Mercedes-Benz Center.
• Observe the additional display messages in the multifunction display ().

WARNING

If the indicator lamp illuminates and remains illuminated when the weight of a typical adult or someone larger than a small individual has been detected on the passenger seat, do not allow any occupant to use the passenger seat until the system has been repaired.

Problem

The indicator lamp does not illuminate and/or does not remain illuminated. The front-passenger seat is:

• unoccupied
• occupied with a weight up to or less than a typical 12- month-old child in standard child restraint system

Possible causes/consequences and Solutions

The OCS is malfunctioning.

• Make sure there is nothing between the seat cushion and the child seat.
• Check the installation of the child restraint system.
• Make sure that no objects are applying additional weight onto the seat.
• If the indicator lamp does not illuminate, have the OCS checked as soon as possible at an authorized Mercedes- Benz Center. Do not transport a child on the front-passenger seat as long as the OCS is not functioning.
• Observe the additional display messages in the multifunction display ().

WARNING

If the indicator lamp does not illuminate or remains out with the weight of a typical 12-month-old child in a standard child restraint or less, or is unoccupied, on the front-passenger seat, do not transport a child on the front-passenger seat until the system has been repaired.