2010 Mercedes S-Class Owner's Manual - Page 393

Useful features The message Call Failed appears in the multifunction display for approximately 10 seconds. Should this occur, assistance must be summoned by other means. signal and cannot make voice contact with the vehicle occupants. X 391 Terminating calls: Press button ~ on the multifunction steering wheel. Press the respective button for ending a telephone call on the telephone keypad. or i During the emergency call the telephone is switched off automatically and must be switched back on to make a call. i The "911" emergency call system is a public service. Using it without due cause is a criminal offense. Initiating an emergency call manually X X Open the front armrest storage compartment (Y page 382). X X Briefly press on cover ; to open. X Press SOS button : briefly. The indicator lamp in SOS button : will flash until the emergency call is concluded. X Wait for a voice connection to the Customer Assistance Center. X Close cover ; after the emergency call is concluded. G Warning! If you feel at any way in jeopardy when in the vehicle (e.g. smoke or fire in the vehicle, vehicle in a dangerous road location), please do not wait for voice contact after you have pressed the emergency button. Carefully leave the vehicle and move to a safe location. The Customer Assistance Center will automatically contact local emergency officials with the vehicle's approximate location if they receive an automatic SOS Press and hold Roadside Assistance button : for longer than 2 seconds. A call to a Mercedes-Benz Roadside Assistance dispatcher will be initiated. The indicator lamp in Roadside Assistance button : will flash while the call is in progress. The message Connecting Call will appear in the multifunction display. Roadside Assistance Activated appears in the COMAND Display. The audio system or the COMAND system is muted. When the connection is established, the message Call Connected appears in the multifunction display. Roadside Assistance Activated appears in the COMAND display. The Tele Aid system will transmit data generating the vehicle identification number, model, color and location (subject to availability of cellular and GPS signals). Z Controls in detail Roadside Assistance button