2003 Mercedes CL-Class Owner's Manual - Page 85

Controls in detail Locking and unlocking Press and hold the programming button 1 until the "Driver's door" symbol 2 lights up. The KEYLESS-GO card will then function as follows: Unlocking the driver's door Grasp the driver's door handle. Global unlocking Grasp the door handle on the passenger side. Global locking Press lock button at door handle or trunk. Restoring to factory setting Press and hold the programming button 1 until the "Global unlock" symbol 3 lights up. ! If you cannot lock or unlock the vehicle with the KEYLESS-GO card, then either the batteries of the KEYLESS-GO card are discharged or the KEYLESS-GO card is malfunctioning or the vehicle battery is drained. Check the batteries of the KEYLESS-GO card ( page 85) and replace them if necessary ( page 299). or Use the mechanical key to unlock the doors ( page 297) and trunk ( page 298) as required. Lock the vehicle using the mechanical key ( page 298). If your KEYLESS-GO card is malfunctioning, contact your authorized Mercedes-Benz Center. Checking the batteries Briefly press the programming button 1. The KEYLESS-GO card batteries are in order if the indicator lamp for either the "Driver's door" 2 or "Global unlock" 3 comes on red or green. ! If the symbols 2 or 3 do not light up during the check, then the batteries of the KEYLESS-GO card are discharged. Change the batteries ( page 299). You can obtain the batteries at any authorized Mercedes-Benz Center. 85