2003 Mercedes SL-Class Owner's Manual - Page 206

Controls in detail Useful features Information regarding the operation of your vehicle, the nearest Mercedes-Benz Center or Mercedes-Benz USA products and services is available to you. For more details concerning the Tele Aid system, please visit www.mbusa.com and use your ID and password (sent to you separately) to learn more (USA only). the Tele Aid system could not initiate an Information call (e.g. the relevant cellular phone network is not available). The message Info Call failed appears in the multifunction display. Information calls can be terminated using the ì button on the multifunction steering wheel. Upgrade Signals The Tele Aid system processes calls using the following priority. Automatic emergency - First priority Manual emergency - Second priority Roadside assistance - Third priority Information - Fourth priority Should a higher priority call be initiated while you are connected, an upgrade (alternating) tone will be heard, and the appropriate indicator lamp will flash. If certain information such as vehicle identification number or customer information is not available, the operator may need to retransmit. During this time you will hear a beep and voice contact will be interrupted. Voice contact will resume once the retransmission is completed. Once a call is concluded, a beep will be heard and the appropriate indicator lamp will stop flashing. The COMAND system operation will resume. i The indicator lamp in the Information button ¡ remains illuminated in red for approx. 10 seconds during the system self-check after turning key in the starter switch to position 2 (together with the SOS button and the Roadside Assistance button •). See system self-check ( page 201) when the indicator lamp does not light up in red or stays on longer than approximately 10 seconds. If the indicator lamp in the Information button ¡ is illuminated continuously and there was no voice connection to the Response Center established, then ! If the indicator lamps do not start flashing after pressing one of the buttons or remain illuminated (in red) at any time, the Tele Aid system has detected a fault or the service is not currently active, and may not initiate a call. Visit your Mercedes-Benz Center and have the system checked or contact the Response Center at 1-800-756-9018 (in the USA) or 1-888-923-8367 (in Canada) as soon as possible. 206