johnloewe94

XC90 auxiliary battery alarm defective

I've got a 2007 Volvo XC90 gasoline with about 220k kilometers on it. Recently, I've been getting an error message related to the auxiliary battery alarm system being defective. The only symptoms I'm noticing are that the error is stored in the memory and the alarm system doesn't seem to be functioning. Could this be linked to the car battery?

A 2007 Volvo XC90 owner reported an error message indicating a defective auxiliary battery alarm system, with symptoms including a non-functional alarm and stored error messages. The issue was suspected to be linked to the car's battery, possibly due to ageing or discharge. It was advised to address the problem promptly to avoid further electrical issues. The problem was resolved by replacing the auxiliary battery, restoring the alarm system's functionality.

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4 comment(s)

Interesting. Could be a few things, but a discharged battery due to ageing is possible. Has the car been sitting unused for extended periods lately?

Not really, it's my daily driver. So, if it is the battery, is it something that needs immediate attention, or can it wait a bit?

If the alarm system is non-functional and the error's stored, it does point towards a battery issue. I'd say it warrants a check sooner rather than later. A failing battery can cause unexpected electrical gremlins.

Thanks for the input. I took it to a workshop, and it turned out to be the auxiliary battery. Replacing it cost me about 330€. Everything's working perfectly again!

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VOLVO

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XC90