2007 Mercedes CLS-Class Owner's Manual - Page 91
2007 Mercedes CLS-Class Manual
Page 91 highlights
Safety and Security Panic alarm i USA only: This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Activating Press and hold  button for at least 1 second. An audible alarm and flashing exterior lamps will operate briefly. Deactivating Press  button again. or Insert SmartKey or the SmartKey with KEYLESS-GO* in starter switch. or Press the KEYLESS-GO* start/stop button ( page 39). The SmartKey with KEYLESS-GO* must be inside the vehicle. 1  button Any unauthorized modification to this device could void the user's authority to operate the equipment. i Canada only: This device complies with RSS-210 of Industry Canada. Operation is subject to the following two conditions: (1) This device may not cause interference, and (2) this device must accept any interference received, including interference that may cause undesired operation of the device. Any unauthorized modification to this device could void the user's authority to operate the equipment. 90