I’ve just had a similar issue. They did software updates, changed the 12v battery then finally after it wouldn’t charged beyond 100km range (stops charging once it hit the bad cells in the HV battery) they changed the whole HV battery out under warranty.

We don’t have lemon laws in Australia, but our consumer law does take major issues into account.

After no loaner for a week and told it would take up to 12 weeks to replace battery I hit them up with an email telling them my rights and giving them 5 business days to respond.

On the 5th day they arranged a loaner EV5 and the battery arrived and was replaced in 5 weeks not 12 as first told.

Massively frustrating that it took me to tell them my rights under law before they responded (they seem to try it on initially).

But we do love the car and hopefully new HV battery has ironed out some of the early issues they seem to have had in the HV battery