Key
Display messages
Possible causes/consequences and
M
M
Solutions
Â
Key
Key does
does not
not belong
belong
to vehicle
to vehicle
You have put the wrong key in the ignition lock.
X
Use the correct key.
Â
Replace key
Replace key
The key needs to be replaced.
X
Consult a qualified specialist workshop.
Â
Change
Change key
key batteries
batteries
The key battery is discharged.
X
Change the battery (
Y
page 80).
Â
Key not detected
Key not detected
(red display message)
The key is not in the vehicle.
A warning tone also sounds.
If the engine is switched off, you can no longer lock the vehicle cen-
trally or start the engine.
X
Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X
Safeguard the vehicle against rolling away (
Y
page 153).
X
Locate the key.
X
Press
a
on the steering wheel to confirm the display message.
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.
X
Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X
Safeguard the vehicle against rolling away (
Y
page 153).
X
Insert the key into the ignition lock and bring into key mode.
Â
Key not detected
Key not detected
(white display message)
The key is currently undetected.
X
Change the location of the key in the vehicle.
If the key still cannot be detected:
X
Insert the key into the ignition lock and turn it to the desired posi-
tion.
Â
Remove
Remove starting
starting but‐
but‐
ton,
ton, then
then insert
insert key
key
The key is continually undetected.
KEYLESS-GO is temporarily malfunctioning or is defective. A warning
tone also sounds.
X
Insert the key into the ignition lock and turn it to the desired posi-
tion.
X
Consult a qualified specialist workshop.
Display messages
243
On
-b
oar
d
comp
ut
er
an
d
di
sp
lay
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