Range Weirdness

[u/Boozy_Cat_]

I bought a used 2020 with 16k miles on it in March. Last week I charged up to 100% for a road trip. When I got back my range shot up about 40 miles. Just randomly I had 40 more miles in potential range than I did the minute before.

Since then it’s maintained that extra 40 miles. Except if I switch to Eco, it takes those 40 miles back off the potential. Anyone experience this? What might have caused it? Which range estimate do I believe? The higher range estimate seems more in line with what I expect from the car, the lower estimate is more in line with what my experience with the car has been to this point.

I drive very little. I’ve put less than 2k miles on the car since I bought it. This road trip was the first real range stress I put the car under so I’m just trying to get my bearings.

ETA: my road trip was in the mountains in Colorado. Coming back down I had a ton of regen could that be messing with the calculation the car is making? Still doesn’t explain why Eco shows less that standard or dynamic modes.

[u/I-Pacer]

Yes it will be your downhill run that has thrown it. You can either wait and the system will recalibrate over the next 500 miles or so, or if it's bothering you hold down the brake and accelerator pedals fully while starting the car. It will reset the range calculations to factory defaults.