milaweber64
Estima key battery low warning
Summary of the thread
A 'key battery low' warning on a 2006 Toyota Estima hybrid led to issues with keyless access and remote unlocking. The problem was suspected to be a low key fob battery, as similar symptoms were experienced by others. Replacing the key fob battery resolved the issues, confirming the initial suspicion.
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4 comment(s)
milaweber64 (community.author)
When you had these issues, was it a gradual decline, or did it suddenly stop working? I'm trying to see if there might be other underlying problems besides the battery.
ralf_mayer9
It was a gradual decline for me. But given the error stored and the loss of keyless access, I still suspect the key fob battery. If a new battery doesn't fix it, you might need a workshop.
milaweber64 (community.author)
You were right; a new key fob battery fixed everything! The total cost was 37€, including programming. Thanks for the help!
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TOYOTA
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ESTIMA
ralf_mayer9
I had similar symptoms on my Estima. A low key fob battery can cause those issues. I'd recommend checking the battery voltage.