Mercedes-Benz S-Class Coupe 2015 Operator's Manual page 280

Display messages
278
Display messages
Â
Key Not Detected Key Not Detected
(red display message)
Â
Remove 'Start' Remove 'Start' But‐
ton and Insert Key ton and Insert Key
Possible causes/consequences and M M Solutions
The SmartKey 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.
Pull over and stop the vehicle safely as soon as possible, paying
X
attention to road and traffic conditions.
Secure the vehicle against rolling away (
X
Locate the SmartKey.
X
Press a on the steering wheel to confirm the display mes-
X
sage.
Because there is interference from a strong source of radio waves,
the key is not detected whilst the engine is running.
A warning tone also sounds.
Pull over and stop the vehicle safely as soon as possible, paying
X
attention to road and traffic conditions.
Secure the vehicle against rolling away (
X
Insert the SmartKey into the ignition lock and bring into key
X
mode.
The SmartKey is continually undetected.
The SmartKey detection function has a temporary malfunction or
But‐
is faulty. A warning tone also sounds.
Insert the SmartKey into the ignition lock and turn it to the
X
desired position.
Visit a qualified specialist workshop.
X
page 166).
Y
page 166).
Y