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KEY NOT DETECTED

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Old Jun 24, 2021 | 03:52 PM
  #1  
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c300
KEY NOT DETECTED

Hello, I installed LED lights in the center console and now I " sometimes" get key not detected !! I need to hold the key behind the seat to push the start button and once the car starts everything is fine unless I stop and open the door. The LED does not necessarilt have to be on when I get the key not detected. Any help would be appreciated.
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Old Jun 24, 2021 | 04:14 PM
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Change the battery on the key and see if it still happens.
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Old Jun 24, 2021 | 06:23 PM
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See if the problem exists using the 2nd key. If so, you might have crosswired the LED with the proximity sensor wire.

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Old Jun 24, 2021 | 06:26 PM
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Originally Posted by mazenkanso
Hello, I installed LED lights in the center console and now I " sometimes" get key not detected !! I need to hold the key behind the seat to push the start button and once the car starts everything is fine unless I stop and open the door. The LED does not necessarilt have to be on when I get the key not detected. Any help would be appreciated.
Sounds like interference to me. LEDS can create interference.
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Old Jun 24, 2021 | 06:31 PM
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The key sensor is in the central console bellow the right cup holder. You could have mooved it while installing your LED. First install a new battery in your key see if it works. If not you will need to remove your console again and check the key sensor.
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Old Jun 25, 2021 | 01:03 PM
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Thanks, I did change the battery and used the extra key, still same issue
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Old Jun 25, 2021 | 01:22 PM
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Originally Posted by mazenkanso
Thanks, I did change the battery and used the extra key, still same issue
Again, interference. Even my garage door opener says range may be reduced by using LED bulbs.
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Old Jun 25, 2021 | 04:20 PM
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Originally Posted by mazenkanso
Thanks, I did change the battery and used the extra key, still same issue
Check the key sensor in the centre console. I had the same issue when i installed my 10.25" screen.
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Old Mar 23, 2024 | 04:29 PM
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W205
Same issue for mine also

Have you got the solution.
And where exactly is the sensor located ?
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