matthiassilver1

XC40 Rain Light Sensor Fault

Hi Volvo community, I have a 2022 Volvo XC40 hybrid with 84612 km. I'm seeing a rain-light sensor fault: error stored, no auto wiping in rain, deactivated auto headlight control, non-functional speedometer dimming, and headlights switching on independently. Anyone else dealt with this? I suspect bubbles under the windshield gel pad are impacting the sensor. Any ideas?

A 2022 Volvo XC40 hybrid is experiencing a rain-light sensor fault, leading to issues like non-functional auto wiping, deactivated auto headlight control, and erratic headlight behavior. The suspected cause is bubbles under the windshield gel pad affecting the sensor. A suggested solution is to replace the sensor and gel pad, which has resolved similar issues for others.

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4 comment(s)

I have an XC40 as well, and your description sounds familiar. My rain sensor went haywire a while back with similar symptoms. Did you notice any degradation or discoloration of the gel pad before the errors?

Thanks for the quick reply! I didn't scrutinize the gel pad before. Now that you mention it, I see some minuscule anomalies beneath the surface. What was your experience? Did replacing the sensor fix it, or were there other problems?

The anomalies are almost certainly the problem. I had to go to the workshop. They replaced the sensor and the gel pad. It's a straightforward fix. I'd recommend getting it checked soon to prevent electrical issues.

Thanks! I'll schedule a workshop appointment. It seems the gel pad delamination is the cause. The repair was 62€, worth it to avoid the aggravation. Thanks again!

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VOLVO

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XC40