I wasn't really that concerned about the speedo and odometer, but rather the shift points. I put very large all-terrain tires and the shift points are not great. I think the change to the tire circumference and tire model actually improved the shift points, but also resulted in the subject DTC issue.

@T5-T6-Schnappi Thank you. The change I made does seem to work in terms of improving some things (shift points) but not others (speedo accuracy). I do get a DTC about incompatible configuration for the DIM, and the "i" display flashes occasionally.

My guess is that I am using a tire dimension that is outside the bounds of the firmware for my car (at least as far as the DIM is concerned), if that makes sense.

I believe that VIDA 2014D is reading the CEM each time and displays the current values. Note that the value that VIDA displays changes after I change the value using VDASH, it just doesn't change to the same/right value.

Hi. 2010 XC60 T6 USA. I decoded my pin and updated the configuration, modifying the "tyre circumference" parameter from 2250mm to 2395mm. After making the change successfully in VDASH, I reloaded my configuration in VITA just to check it, and VIDA reports the tyre circumference as 2210mm.

Do you all check your configuration changes against VITA, and do they match? I'm concerned that VDASH has entered a value that is not compatible with my car and now I don't know which number to trust.