I take it your talking about the GoM after a full charge each time. Possibly by disconnecting and reconnecting the 12V but otherwise, you'd be looking to factory reset the trip computer somehow. Not sure, myself, how to do that.

 

It shouldn't take too long to "reset" the GOM. Just drive it! I do my calculations from the battery status, to be precise by multiplying the charge % by the driving I'm intending to do.

 

As far as I understand it, the Guess-o-Meter calculates the range to empty based on the state of charge of the battery coupled with recent driving patterns (so, not cumulative over the life of the car; just recent). Hence, once you establish a given driving pattern the GoM will adjust the range to empty accordingly. And, if you make an exceptional trip with lower or higher usage, that calculation will change. In other words, it's constantly re-estimating. So I see nothing to be gained by doing what you are asking.

 

As far as I understand it, the Guess-o-Meter calculates the range to empty based on the state of charge of the battery coupled with recent driving patterns (so, not cumulative over the life of the car; just recent).

That's my understanding as well.

Question is why the plug-in hybrid doesn't do the same? Unless things have changed with the latest model year, the electrical range always starts with the same pre-programmed value, based on the local driving cycle used to test the car. So my 2018 PHEV always counted down from 63 km (the NEDC value) even though I seldom could get more than 47-48 km on electricity.

 

You go in the ev menu, eco driving, history. You have a menu button there. Click delete history. In the car menu, you go to user settings, other features, fuel economy auto reset, and you choose from there, after ignition or after recharging

 

This is why I asked, as I would rather look at this first thing in the morning than 116 miles.