luisakoenig9

Lexus ES Hybrid Electrical Malfunction

My 2023 Lexus ES hybrid is showing some weird errors at 97715 km. I'm getting an error message in the speedometer, and the error memory has something stored. The engine feels weak when starting, and there's general electrical malfunction. Seems like the auxiliary battery isn't charging. Any ideas?

A 2023 Lexus ES hybrid exhibited electrical malfunctions, including error messages on the speedometer and a weak engine start, likely due to the auxiliary battery not charging. The issue was identified as a failing auxiliary battery, which had not been replaced before. Replacing the battery resolved the problem, restoring normal function.

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4 comment(s)

I had something similar with my ES. Is it like when your phone's battery is so low it starts acting up? Check your battery voltage. Could be a sign of a failing auxiliary battery. Has it been replaced before?

No, it hasn't been replaced before. What exactly happened with yours? Was it the same symptoms?

Yep, same symptoms. Dash lit up like a Christmas tree. Best bet is to get it checked at a workshop; could save you some headaches. They can properly diagnose the charging system too.

Thanks! Took it to the shop, and you were right. Auxiliary battery was the culprit. 290€ later, all good.

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LEXUS

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