S90 Parking Aid Failure

I have an S90 too, and your issue sounds awfully familiar. I had a similar problem with my parking aid. It turned out to be a defective cable or plug connection. Think of it like a loose wire on a lamp – everything seems fine, but it just won't light up. Have you checked the connections to the parking sensors?

Interesting analogy. I haven't checked the connections myself, as I don't have much experience with car electrics. Where exactly are these connections located? Are they easily accessible, or would it be best to leave this to a professional?

On mine the parking sensor connections were a bit fiddly to get to, down near the bumper. Unless you're comfortable poking around with electrical components, I'd really suggest taking it to a workshop. Apparently, the cable or plug connection of the component is defective. My bill was around 95€.

Thank you so much for sharing your experience and advice. It seems like a trip to the workshop is inevitable. Considering the relatively low cost of repair (95€), it's worth getting it sorted professionally. I appreciate your help!