Join Date: Jan 2019
Location: Southern California
It means you do not have a set time for the charger to turn on when you plug in.
Mine is like that - as soon as I plug her in, it starts to charge.
If you have a electricity rate plan and set a scheduled time to start charge then the TCU will be set to remind you that charging starts at a certain time.
Usually if you use L1 (OEM) charger, then you don't need to set the time.
If you use L2 (240V) charging, then it might make sense to take advantage of charging at a certain time of the night...