2009 Mercedes CLS-Class Owner's Manual - Page 277
2009 Mercedes CLS-Class Manual
Page 277 highlights
Practical hints Vehicle status messages in the multifunction display Display messages Possible cause/consequence You are driving with one or more doors open. Key Detected In Vehicle Please don't forget your key. A SmartKey with KEYLESS-GO left in the vehicle was recognized while locking the vehicle from the outside. This display 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. This message is only a reminder. You have forgotten to remove the SmartKey. The SmartKey is malfunctioning. The batteries in the SmartKey with KEYLESS-GO are discharged. Possible solution X V I I Close the door(s). Take the SmartKey out of the vehicle. X X Take the SmartKey with you when leaving the vehicle. I I I Remove Key Please get a new key. Change Key Batteries X Remove the SmartKey from the starter switch. Contact an authorized Mercedes-Benz Center. Replace the batteries (Y page 306). X X Z 275