User Manual - Page 472

For 2020 C-Class Sedan C 300.

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Display messages
Possible causes/consequences and M Solutions
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Replace Key Battery
* The SmartKey battery is discharged.
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Replace the battery (/ page 66).
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Place the Key in the
Marked Space See Opera-
tor's Manual
* The SmartKey detection function is malfunctioning.
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Change the location of the SmartKey in the vehicle.
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Start the vehicle with the SmartKey in the slot (/ page 145).
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Don't Forget Your Key
* A warning tone also sounds. This message reminds you to take your SmartKey with you when you leave the vehicle.
472
Display messages and warning/indicator lamps
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