S90 Gear Shift Indicator Issue

Hi, I've got a 2017 Volvo S90 hybrid with 224055 km on the clock. Recently, I've been experiencing issues with the gear shift indicator. The display in the speedometer is dead, and I can't seem to engage the gears properly. The transmission shifts erratically, sometimes slipping or shifting uncleanly, accompanied by grinding noises. The error memory also contains related faults. Any ideas? I suspect it might be a defective control unit.

4 comment(s)

Interesting. I drive an S90 as well, and that sounds awfully similar to a problem I had a while back. If I recall, the symptoms were almost identical: implausible shifting behavior, gear selection display going haywire. Was there any specific event that triggered it, or did it just appear out of nowhere?

It seemed to appear suddenly; there wasn't any specific event that triggered the gear shift indicator issue. Do you remember what the eventual repair was for you? Did it also involve a control unit?

Yes, in my case, the workshop confirmed it was a faulty control unit related to the gear shift. Given your symptoms and the error codes, I'd strongly recommend taking it to a trusted mechanic for a proper diagnosis. It might be the same issue, but better safe than sorry.

Thanks for the info. I'll get it checked out at the workshop ASAP. I'm expecting the repair cost to be around 1000€, so it's good to have an idea of what to expect. Appreciate the help!

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