The reason we know the official details about calibration is because it is in the manual.
This is what every dealer should have read before doing an update.
In practice none ever do.
We have never heard of a case where the customer has been informed that the BMS was reset.
Instead we always hear reports that the dealer thinks the problem of low SOH has been fixed by an update.
A manual for updating the BMS is here - Service Action: Battery Management System (BMS) Logic Improvement (SA297)
In it we learn that battery calibration actually occurs as the battery is charged from less than 20% SOC to more than 90% SOC
Inform the customer that the BMS update will reset the adaptive learning values to default conditions. As a result, the displayed range/DTE (Distance to Empty) and charge times may be temporarily increased. It does not affect the actual range or battery charging time. These displayed values will gradually be relearned to reflect the actual battery condition with multiple drive and charge cycles performed above 50°F (10°C) from less than 20% SOC to more than 90% SOC.
For more details about calibration see - Battery Calibration
The codes for using Torque Pro can be found by clicking the link in the website icon under my user name on the left.