Mercedes-Benz C-Class Coupe 2019 Operator's Manual page 460

458 Display messages and warning/indicator lamps
SmartKey
Display messages
Â
Key Not Detected (red dis‐
play message)
Â
Obtain a New Key
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Key Not Detected (white
display message)
Possible causes/consequences and
* The SmartKey cannot be detected and may no longer be in the vehicle.
The SmartKey is no longer in the vehicle and you switch off the engine:
You can no longer start the engine.
R
You cannot centrally lock the vehicle.
R
Ensure that the SmartKey is in the vehicle.
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If the SmartKey detection function has a malfunction due to a strong radio signal source:
Pull over and stop the vehicle safely as soon as possible, paying attention to road and traffic conditions.
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Place the SmartKey in the marked space for starting the engine with the SmartKey (
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* The SmartKey needs to be replaced.
Visit a qualified specialist workshop.
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* The SmartKey is currently undetected.
Change the location of the SmartKey in the vehicle.
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If the SmartKey is still not recognized, start the engine with the SmartKey in the marked space
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( page 132).
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M M Solutions
page 132).
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