Car quit in weird way last night....

Filled up my gas tank couple days ago.

Yesterday, was surprised to see my gas gauge indicating only half full. Hadn't driven the car much, and my gauge has always been flakey, so didn't think much of it.

Last night, started driving with gauge showing just under half full. By time got to store was at one third. Got out of store, and driving away from store went from 1/3 to 1/4.

I hadn't driven the car more than 80 miles total since the last fill up 2 days ago, and only 17 miles this whole day last night, and under 5 miles this trip.

A mile down the road, I watched the gas gauge go from 2 pips down to 1 flashing pip. The Red Triangle popped up and the entire dashboard lit up - every single warning light. I then watched my SOC meter start to drain and the gas engine had stopped.

I turned around and got it to a supermarket parking lot. Tried for a restart, the ICE ran real sluggish for about 60 seconds, then quit again. It wouldn't rev when flooring the gas, just idled the whole time. The HV batt began getting weaker and the car could barely move anymore. Further restarts only lasted about 30 seconds before the ICE would quit, and my SOC meter was now showing just 1 magenta bar.

I went thru half a tank in about 17 miles, and a quarter tank in maybe two. There are no leaks under the car, and no smell of fuel.

Wth happened?

Dumped the following DTC codes;

Engine ETC
P0171 - syst too lean
P3193 - fuel run out

Hybrid Control
P0A0F - engine failed to start

HV batt
none

ABS/VSC/TRAC
C1259 - HV syst regen malfunc
C1310 - HV sys malfunc
U0123 - lost comm w yaw sensor
U0124 - lost comm w lat acc sensor
U0126 - lost comm w steering angle sensor

Gateway
B1271 - combo meter ECU comm stop

Other ECUs are empty.

There is some freeze frame data from some of the codes above. I could post pics of them if needed. Too much to type in here.

Thanks in advance,

 

I remember it being less than I expected, 4-5 gallons or so??
Guage was showing about half when I pulled into the pump. Filled till it clicked off, then topped off and gauge showed full.

 

OK, so I added gas and topped off the 12 volt.
Now the car won't go into Ready mode.

Thinking of clearing the codes and charging the traction batt with the Prolong (was last at 1 magenta bar)....

How bad are those ideas?....

 

So, completely topped off both batteries, cleared the codes, added 3 gallons to gas tank, and car started & ran beautifully.

Drove it to gas station to fill up the tank the rest of the way, and couldn't stuff more than 2 1/2 gallons into it.
Gas gauge lights up all but the last pip.

Now I'm paranoid I can't tell how much gas is really in the tank or how far I can go....

 

Drove the car home, 1.1 miles, and lost another pip on the gas gauge. Have the car idling in the driveway and can't see any leakage or spraying.