Tesla is expanding home backup power to new Model 3 and Model Y vehicles ordered from October 1 in the United States and Puerto Rico. Separate equipment, including Powerwall 3, a compatible wall connector and a bidirectional inverter, is required; this is not a software-only feature unlocked for all existing vehicles. The company’s claim of more than two days of power also assumes household use of 30kWh per day. Version 2026.38.3, released the same day, includes Halloween Mode and emergency drive-away, among other features. Driving away in an emergency with a charging cable connected can damage the vehicle and charger.