Odd MPG when coasting / regen....

Probably nothing wrong, probably still warming, or the AC running and the HV battery needed some juice. While 72° F may be warm to you, the engine and catalytic converter are at hundreds of degrees to operate efficiently. Also, at 25-50 MPH on a crowded freeway, you may not be running the ICE as much as you think, so it warms slower.

Here, where it's cooler, it's quite normal to coast at less than 99.9 MPG for up to 20 minutes. I usually get 8 MPG, briefly, going up a half-mile hill first thing in the morning, drive a couple of fairly flat miles, then go down a 3 mile hill and have about 25 MPG after 5 minutes. Then I average aboout 50 MPG on the highway at 55 MPH for the next 20 minutes.

Keep track of your MFD reported MPG for a few tanks of gas. If there's no huge variation, allowing for ethanol in the gas now, nothing is wrong. Winter takes its toll, even in L.A.

 

I agree with Bill. Nothing wrong. The ICE is on. Sometimes the ICE runs (briefly) when I think it should be off. If that happens when the SOC is high, and my speed is low, I'll kick it into EV mode just long enough to draw down the SOC a little bit.

 

Nice avatar icharry. I agree with Bill and Daniel, there is no problem. It is not unusual for the ICE to run and show no arrows. The arrows don't mean it's running they mean it's being used for power to MG1 or the wheels. There is no ICE running indication so if it is running and using fuel it will drop your mileage a little even while coasting.

 

Be sure you are in D and not B. B tends to leave the ICE running.