2008 Mercedes SL-Class Owner's Manual - Page 100

Safety and Security Anti-theft systems The alarm system will also be triggered when someone attempts to raise the vehicle unlocking and opening the driver's door, the trunk, or the glove box with the mechanical key someone opens a door from the inside someone opens the trunk lid with the emergency release button Arming the alarm system The alarm system indicator lamp is located in the locking switch in the upper part of the center console. i If the turn signal lamps do not flash three times and no acoustic warning sounds three times, a door or the trunk lid may not be properly closed. Close the respective element and lock the vehicle again. Disarming the alarm system Unlock the vehicle with the SmartKey or KEYLESS-GO*. The turn signal lamps flash once and an acoustic warning sounds once to indicate that the alarm system is disarmed. 1 Alarm system indicator lamp Lock the vehicle with the SmartKey or KEYLESS-GO*. The turn signal lamps flash three times and an acoustic warning sounds three times to indicate that the alarm system is armed. Alarm system indicator lamp 1 starts flashing. Alarm system indicator lamp 1 goes out. i If the alarm stays on for more than 30 seconds, a call to the Response Center is initiated automatically by the Tele Aid system ( page 252) provided Tele Aid service was subscribed to and properly activated, and that necessary cellular service and GPS coverage are available. i The alarm system will rearm automatically again after approximately 40 seconds if no door was opened. 99