Traverse electrical issues

Sounds familiar! I've got a Traverse too (though not a '22) and had something similar happen. All sorts of electrical gremlins. It was like my car had a mind of its own, like a toddler playing with the settings. Did you try checking the onboard diagnostics or seeing if a recalibration of the control module helps at all?

Recalibration? How involved is that? I've seen videos about onboard diagnostics, but I'm worried about messing something up worse. Is it something I can do myself, or am I better off taking it in?

Yeah, the recalibration can be tricky. Think of it like trying to defrag a computer from the 90s – you can do it, but one wrong move and it's toast. Based on the error memory pointing to the control unit, and your mileage(183368 km), I'd lean towards a software refresh needed on the control module. Given the cost is around 240€, honestly, save yourself the potential headache and take it to a workshop. They can properly diagnose it and perform the refresh. Better safe than sorry, especially with all those electronic bits.

Thanks for the advice! I was hoping to avoid the shop, but you're probably right. I'll book an appointment and see what they say about a software refresh. Appreciate the help!