You only get free service for 3 years/36k miles, which should cover the 4 visits. The first one is scheduled for 7.5k miles. Its pretty limited service though - mainly visual inspections, tire rotation, and a couple of filter replacements (15k and 30k only). Low maintenance is one of the big benefits of EV ownership.
Most significant service is brake fluid replacement at 30k miles. I'm surprised it's a replacement and not just inspection and replace as needed.