Mercedes-Benz 2011 CL-Class Operator's Manual page 376

Display messages
374
Display messages
Â
Key Not Detected
(red display message)
Â
Key Not Detected
(white display
message)
Â
Remove 'Start'
Button and Insert
Key
Â
Close Doors to
Lock Vehicle
Possible causes/consequences and M Solutions
The KEYLESS-GO key is not in the vehicle.
A warning tone also sounds.
If the engine is switched off, you can no longer lock the vehicle
centrally or start the engine.
X
Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X
Engage the parking brake.
X
Locate the KEYLESS-GO key.
The KEYLESS-GO key is not detected while the engine is running
because there is interference from a strong source of radio waves.
A warning tone also sounds.
X
Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X
Engage the parking brake.
X
Operate the vehicle with the KEYLESS-GO key in the ignition
lock if necessary.
The KEYLESS-GO key cannot be detected at present.
X
Change the location of the key with the KEYLESS-GO functions
in the vehicle.
If the KEYLESS-GO key is still not detected:
X
Change the location of the key with the KEYLESS-GO functions
in the vehicle.
X
Operate the vehicle with the KEYLESS-GO key in the ignition
lock if necessary.
KEYLESS-GO is temporarily malfunctioning or is defective.
X
Insert the SmartKey into the ignition lock and turn it to the
desired position.
X
Visit a qualified specialist workshop.
At least one door is open. A warning tone also sounds.
X
Close all doors and lock the vehicle again.