See also:

Activating/deactivating DSR
Activating DSR can only be activated if you are driving no faster than 20 mph (30 km/h). Vehicle without the Off-Road Pro Engineering package Vehicle with the Off-Road Pro Engineering package ...

Safety
Dual-stage front airbags and door-mounted side-impact airbags for the front and rear seats are standard. Optional curtain-type airbags deploy from above the side windows. With Mercedes’ BabySmart ...

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 vehicle ...