Rear seat head restraints

WARNING For safety reasons, always drive with the rear 
For safety reasons, always drive with the rear head restraints in the upright position when the rear seats are occupied.
Keep the area around head restraints clear of articles (e.g. clothing) to not obstruct the folding operation of the head restraints.

WARNING For your protection, drive only with properly 
For your protection, drive only with properly positioned head restraints.
Adjust the head restraint in such a way that it is as close to the head as possible and the center of the head restraint supports the back of the head at eye level. This will reduce the potential for injury to the head and neck in the event of an accident or similar situation.
With a rear seat occupied, make sure to move the respective head restraint up from the lowest non-use position and have the occupant adjust the head restraint properly.
Do not drive the vehicle without the seat head restraints installed when the rear seats are occupied. Head restraints are intended to help reduce injuries during an accident.

    See also:

    Opening the hood
    WARNING Do not pull the release lever while the vehicle is in motion. Otherwise, the hood could be forced open by passing air flow. This could cause the hood to come loose and injure you and ...

    Pulling away with a trailer
    To ensure that you do not roll backwards when pulling away on an uphill slope, engage the electric parking brake. - Press and hold handle 1. The electric parking brake continues to brake and ...

    4MATIC: high-performance all-wheel-drive system with sophisticated control systems
    The 4MATIC powertrain at the heart of the Mercedes-Benz GLK-Class is one of the most capable all-wheel-drive systems on the market. The driving dynamics systems ESP®, ASR and 4ETS are superbly har ...