Low Fuel warning light glitch

If the car sits for months between drives, always "put it to bed" with a full tank, otherwise the sender can get corroded by ambient moisture and that causes it to stick. If the car sits for months with a low fuel level, there you go, that could be it. If so, keep an eye on the fuel level readings, if it bounces around more, might need a new sender.

 

My experience with the fuel indicator is that it doesn’t carry an “average” but rather a “spot” fuel burn rate in its calculation. So if you’re trailing few miles are really high burn rates (bad traffic or your winding the car out time and time again for a spirited stretch) and it ends up calculating that you’ll run out very quickly at that burn rate. For example, I was 60 miles from empty recently trodding along the interstate and got caught in traffic for 20 min crawling through a few miles and my car said I was imminently out of gas…was freaking out and once I got past the wreck and started normal cruising the average went back up to 40 miles…really poor design frankly. You should always monitor your total miles since last fill up and estimate based on how your travel pattern would have burned fuel rather than your miles to empty.


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Since it happened coincident with accelerating quickly seems like something in the mechanical float circuit got bound up. There are some fuel additives and stabilizers that advertise producing an anti-corrosion environment for the area of the gas tank above the fuel level. Supposed to inhibit the effects of ethanol-based fuels and excessive moisture. Maybe research those and perhaps switch gas stations and keep tank full when stored. That and get rid of the battery if still OEM.