I don't think any battery disconnect requires you to calibrate the eyesight. I've had it installed by the dealer and it wasn't something they did. I then had the battery replaced after it started slow cranking and they didn't calibrate it. Calibration is only done with a new windshield or if you wipe/get stuff on the stereo-cams.when you guys installed the hitch yourself, did you disconnect the battery first? If you did, do you have to do a calibration for eyesight afterwards? Installation seems pretty straight forward but there are quite a few sensors for the RAB and other eyesight functions that I am worried might be affected.