2005 Mercedes SL-Class Owner's Manual - Page 360
2005 Mercedes SL-Class Manual
Page 360 highlights
Practical hints What to do if ... Left display Right display Key Check battery Don't forget key Possible cause The batteries in the SmartKey with KEYLESS-GO* are discharged. This message appears (for a maximum of 60 seconds) if the driver's door is opened with the engine shut off and no SmartKey in the starter switch. Message is only a reminder. The KEYLESS-GO* system is malfunctioning. The KEYLESS-GO* system is malfunctioning. Possible solution Change the batteries ( page 377). Insert SmartKey in the starter switch. Take the SmartKey with KEYLESS-GO* with you when leaving the vehicle. F KEYLESS GO Check system KEYLESS-GO Drive to workshop Visit an authorized Mercedes-Benz Center as soon as possible. Visit an authorized Mercedes-Benz Center as soon as possible. 358