Last month, on the coldest day of the year, I got the Service High Voltage message and no heat in the car. When I took it to the dealer, they said it was probably the heat pump and they were on back order until the end of March. The dealer had the car for about a week when they called and said the car was fixed.
When I picked it up, the paperwork said it was low on refrigerant. When I asked why it was low, they said it wasn’t really low. Seems like typical service double talk. Should have pushed for a better answer.
Not at all confident that this is not going to happen again.