Fuel Gauge Calibration Instructions

Yes, I did as suggested. I tried again later today and was able to get the 6 digit and 5 digit codes, including the last one with a 1 in the middle. Unfortunately, the fuel gauge is still wrong given the amount of gas I put in at the last fillup and the number of miles driven since then.

Any other suggestion, please?

What will happen if I ignore the blinking last bar and keep driving for another 200 miles?

 

You will then need to drive for 5 min to 5 days to get the car to reset to the correct level.

Nothing. Use one of the trip meters to log the miles driven since the last fill up and use the "amount last filled" and the average MPG to calculate the "miles to empty (MTE)". Use that MTE distance to approximate when you should next fill up. If the gauge is not behaving by the time of the next fill up you may have plumbing problems back by the tank. Some of those set diagnostic trouble codes (DTCs) and some don't. If you do get a DTC that would help with diagnostics.

 

If you run out of gas (*and run down the HV battery), you will be stuck on the side of the road with no way to restart after buying gas again.

 

I am aware of that and that is correct if the gas tank is almost empty. In my case, I have about a half-full tank when the last bar started blinking because of the problem with the fuel gauge, meaning that I still have about 200 miles to go on the tank. Dolj said above that nothing will happen if I keep driving.

 

... and that was in the context of you saying you knew there was fuel in the car. I probably should have said, "Nothing, until you actually run out of gas," to be totally unambiguous, especially for other people reading this thread at a later date.