Mercedes-Benz S-Class Saloon 2021, Owner'S Manual

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Displa Display messag y messages P es Possible causes/conseq ossible causes/consequences and uences and M M Solutions Solutions
Á
Change key batteries
* The key battery is discharged.
#
Replace the battery (
/
page 85).
Á
Key not detected (white dis-
play message)
* The key is currently undetected.
#
Change the location of the key in the vehicle.
#
If the key is still not recognised, place it in the slot for starting with the key (
/
page 202).
Á
Key not detected (red dis-
play message)
* The key cannot be detected and may no longer be in the vehicle.
The key is no longer in the vehicle and you switch o the vehicle:
R
You can no longer start the vehicle.
R
You cannot centrally lock the vehicle.
#
Ensure that the key is in the vehicle.
If the key detection function has a malfunction due to a strong radio signal source:
#
Stop the vehicle immediately in accordance with the tra c conditions.
#
Place the key in the slot for starting the engine with the key (
/
page 202).
Display messages and warning/indicator lamps 491 491