2003 Mercedes SL-Class Owner's Manual - Page 87
2003 Mercedes SL-Class Manual
Page 87 highlights
Controls in detail Locking and unlocking Restoring to factory setting Press and hold the programming button 1 until the "Global unlock" symbol 3 lights up. 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. Checking vehicle lock status If you cannot remember whether you have locked the vehicle, you can check the lock status using the KEYLESS-GO card. Briefly press the programming button 1. The indicator lamp for the "Driver's door" 2 or "Global unlock" 3 lights up in red or green. Vehicle lock status: Red Vehicle is locked Green Vehicle is unlocked ! 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. Check the batteries of the KEYLESS-GO card ( page 87) and replace them if necessary ( page 294). or Use the key to unlock the doors ( page 81) and trunk ( page 82) as required. Lock the vehicle using the key ( page 81). If your KEYLESS-GO card is malfunctioning, contact your authorized Mercedes-Benz Center. ! 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 294). You can obtain the batteries at any authorized Mercedes-Benz Center. 87