First Timer: Got 15.8 Miles on Battery

NOT NORMAL. Be glad!

 

Downhill?

 

Not close to normal. How do you go 75-80 mph in EV mode when the PiP will only do about 64 mph before the engine kicks in.

 

Maybe my dude's PIP is a marvel.

But something does seem awry.

 

The engine can still start while in EV mode, if you have the MFD on "Hybrid System Indicator" the "EV" symbol will go blank when this happens. Since you were going over the 60 MPH EV mode speed limit, the ICE had undoubtedly started, and EV driving would only be occurring below this speed.

Depending on certain driving conditions, the car can use significant EV power over 60 MPH (although the ICE is still running too). Some refer to this as "EV Boost". Normally the EV range won't go down much when driving at these speeds. I've seen it happen a couple of times but I don't really understand how it works, or if it's even an intended mode of operation.

Not sure what "all taken care of" means, did you just get the car?

 

Yeah, I played with that with my PiP. It was pretty cool getting close to 100 mpg at 70 mph. Used up battery fairly fast, but not as fast as at 60 mph without the ICE. I was hoping the Prime would do something like that in EV auto. But alas ...

Edit to add: I should have mentioned before that just because the PiP is in EV mode doesn't mean the ICE isn't running.