Had a message pop up "Battery needs service. Avoid hard acceleration" on my P85DL (exactly 2 years old). Called Tesla who did some remote investigation and concluded the HV battery needed replacing. In the meantime Tesla instructed me to put the car in Insane (vs Ludicrous) mode and try not to accelerate too hard. A new battery will be ordered from the US. Apparently once it arrives it is relatively easy to replace. It is a disappointingly low mileage (32,233km) to experience a battery failure. I was hoping for a capacity upgrade but alas - no - the battery will be replaced like for like. The hardest part will be slow acceleration for the next x months that it takes to arrive. Anyone else experience this?