Prime Depart at time finishes early

Never had 1st problem
Before exiting car set your heater to where you want it, then power off.
You cannot charge less without affecting the normal and the AC precondition.
I don’t think AC precondition can be programmed.
When you do initiate AC precondition, a portion of the charge gets used for heating / cooling
then the car charges again to return to whatever normal charge usually is.
Traction battery Heater: I didn’t even know it had one, If so, I should be getting my summer ranges, after a charge. 30-35, if I remember right. But am only getting 20 miles.
The reason for the cooling fans at the back seat is because the HV battery gets too HOT and requires the AC on, while driving.
On 1st question, i have never checked to see if my charger was shutting off on time, Is your clock set right?

 

how much earlier than departure time?

 

3 days.....

 

I've noticed that I also seem to charge ahead of departure. In addition, I'm not sure if the climate control operates prior to departure even though its selected when setting charge for departure. I need to spend some time to figure this out, but one thing you can do is check your cars date / time setting...at delivery, mine was off by a day and the car wanted to charge for departure one day later than I needed initially.

 

In addition to the clock, there’s a separate date setting buried in the menus somewhere. If it only an hour off though it’s probbaly not that.

 

This is normal and the same behavior I'm seeing on my energy monitor. I think it is partially because it slows down the charge near the end and partially because it is checking to make sure everything is OK with the battery after the charge.

It may also be Toyota deciding that people would be angrier if they get into a car that is at 96% because they got in 10 min before the charge schedule departure vs. having it be ready too soon.

 

There is also. Daylight Savings Time toggle in the Menu.

Posted via the PriusChat mobile app.

 

you can set start time instead

 

I don’t believe the EV Battery can be heated. Iv tried preheating the inside before arriving home, immediately charging after arriving, with a good Sun. Nothing increases the range, right now ( 20.6 )
I believe the traction battery is intimitly aware of weather conditions.

 

There is a heater for the traction battery to keep it above freezing. Kicks on before departure time when plugged in. I'm assuming it also kicks on when you start the car in the cold and haven't been plugged in.

 

1 minute 40 seconds into this video starts you into deep dive into traction battery heater. At 6 min 40 sec video indicates that traction battery heater kicks on when temp sensor reads below 35.6 F (2C) and turns off at 41 F (5C) - and only if you've plugged in your Prime.

 

Thanks for posting. Great to know the specifics of the heater.