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GLC Hybrid Key Battery Issue

My 2022 Mercedes GLC hybrid is showing a 'key battery low' warning and keyless access isn't working. There's also an error stored. I'm having trouble locking and unlocking too. Has this happened to anyone else?

A 2022 Mercedes GLC hybrid displayed a 'key battery low' warning, causing issues with keyless access and locking/unlocking. The likely cause was a depleted key fob battery. Replacing the battery, typically a CR2032, resolved the problem. If issues persist after replacement, consulting a workshop is recommended to check for other potential problems.

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4 comment(s)

Sounds like the fob battery is the likely culprit. Have you tried replacing it? It's a fairly simple process, similar to changing a watch battery.

I haven't replaced it yet. I wanted to see if this was a common issue first. Is there a specific battery type I should be using, or a particular procedure to follow after replacing it?

It's common enough. Check your owner's manual for the correct battery type; it's usually a CR2032. While the replacement is straightforward, if the error persists or the key still doesn't work properly after the battery change, it might be best to consult a workshop. They can check for other potential issues, such as low voltage or a dead key fob.

Thanks for the advice. I replaced the battery myself; the total cost was 37€. Everything is working as expected now.

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MERCEDES

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GLC