dirkloewe41

Highlander Key Battery Low Warning

My 2012 Toyota Highlander with a gasoline engine is showing a 'key battery low' warning. Keyless access isn't working, and there's an error message stored. Unlocking is also impaired. The car only has 51216 km. I suspect the key fob battery. Has anyone experienced this?

A 2012 Toyota Highlander displayed a 'key battery low' warning, impairing keyless access and unlocking functions. The likely cause was identified as a low battery in the key fob. Replacing the battery resolved the issue, restoring full functionality to the key.

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4 comment(s)

Yep, sounds like the fob battery. Easy fix. Have you tried replacing it yet?

No, not yet. I wanted to ask if there might be other causes, given the error message. Could a simple battery replacement reliably resolve the error?

It's almost certainly the battery. The error's likely just a consequence of the low voltage. But if you're worried, swing by a shop. They can confirm and replace it.

Thank you. I had the battery replaced at a workshop. The issue is resolved and the car key is working again. The total cost was 37€.

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TOYOTA

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HIGHLANDER