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luisejones37

Renault Zoe keyless entry issue

Hi, I've got a 2018 Renault Zoe (electric) with about 65k km on the clock. Recently, I've been getting a 'key battery low' warning and now the keyless entry has stopped working completely. There's an error stored in the car's memory too. Locking and unlocking is a pain; sometimes it works, sometimes it doesn't. I'm guessing it's just a dead key battery?

Summary of the thread

A 2018 Renault Zoe owner is experiencing issues with the keyless entry system, receiving a 'key battery low' warning, and inconsistent locking and unlocking. The primary suspected cause is a dead key fob battery. The suggested solution is to replace the battery first, and if the problem persists, seek professional diagnostics to rule out other potential issues with the key fob or vehicle's receiver.

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4 comment(s)

dirk_peters9

The symptoms you describe do indeed point to a potential issue with the key fob's battery. However, while a low battery is the most probable cause, there remains a degree of uncertainty without formal diagnostics. Other potential, albeit less likely, causes could include a fault within the key fob itself or, in rare circumstances, an issue with the vehicle's receiver. Have you checked the voltage of the battery?

luisejones37 (community.author)

Thanks for the reply! I haven't checked the voltage of the battery itself yet. Is there a specific voltage I should be looking for? And if the voltage seems okay, what would you suggest checking next before I just swap the battery?

dirk_peters9

While checking the voltage is a reasonable step, interpreting the results requires specialist knowledge. Given the error message and the failure of the keyless entry, replacing the battery is a logical first step. However, if the problem persists after replacing the battery, it is recommended to consult a qualified technician for further diagnostics. The cost of replacing the key might exceed the expense of professional diagnosis.

luisejones37 (community.author)

Right, makes sense. I'll swap out the battery and see if that does the trick. If not, I'll book it in with a mechanic. Thanks for the advice!

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RENAULT

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ZOE