What exactly is not working? Are you aware that, if you set a departure time after 6am, that the car will ignore that and ensure that it is ready to go at 6am, per the release notes?
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“It’s now easier to have your car comfortable and ready to drive with Scheduled Departure. For any location (e.g. Home), plug in your car and select a time for when you want your car ready to drive. Once your specified time is set, the car will schedule charging to complete before peak electricity rates begin (6AM) to reduce energy costs and ensure consistent regenerative braking and performance.”