GLC Class (X253) Produced 2016-2022

2020 glc - command screen and touch screen going dim

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Old Sep 1, 2022 | 12:25 PM
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2020 GLC 300
2020 glc - command screen and touch screen going dim

Sorry if this has already been asked. Having issues with radio and screen in picture going dim. Sound on radio even cuts out, the ambient lights, headlights, and motor stay on. Im thinking a loose or corroded ground on battery? In a matter of 30 min it did this 3 times. Maybe just electronics updating?

When it dims

Normal view

not sure if it a battery connection. System shows battery is fine. Thanks for any help

Last edited by Jcharral; Sep 1, 2022 at 02:52 PM.
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Old Sep 1, 2022 | 12:43 PM
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My guess is malfunctioning or blocked interior ambient light sensor. The brightness of the displays adjusts automatically based on ambient light. If the sensor is blocked or malfunctions you could get this. In my car the sensor is in the bezel of the center screen. Make sure you don't have anything blocking it and don't have any protective film on the screen.
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