I Have just received my Prius prime 2022 on January31 I am gratefull for tips and advice found here I discovered Weber university and professor John Kelly explaining the P410 transaxle, the traction battery removal etc The car stays outside ,because i have no garage .Since it is very cold I selected to turn on the traction battery heater and charge it at 8 amps by the way my car does not beep in reverse and I am very glad . Toyota turn it of for 2022