Fuel Guage may not read correctly on Toyota Prius

The fuel gauge may read incorrectly. A service bulletin has been released by Toyota regarding this concern. The fuel filler pipe or the instrument cluster may need to be replaced to correct this concern.

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Average mileage: 99,726 (23,000–171,000)
9 model years affected: 2004, 2005, 2006, 2007, more2008, 2009, 2010, 2011, 2015
37 people reported this problem
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problem details
2009 Toyota Prius 79,000 mi,
Fuel gauge indicates tank is near empty but it takes less than 7 gallons to completely refill it. Consistent with this, the gauge seems to go down more quickly than fuel economy would suggest.
2005 Toyota Prius 114,500 mi,
The fuel gauge is stuck at the 6 th notch and it doesn't move after filling it up to the full tank. It's scarily driving when I don't know how much gas I have left.
2006 Toyota Prius 151,400 mi,
keeps blinking that it is empty but can't put any more fuel into it
2008 Toyota Prius 47,000 mi,
gas tank is full but gas gauge only registers half a tank, recalibrated system and still registers half tank.
the level gauge did not go up when fill the fuel tank.
2006 Toyota Prius 135,000 mi,
Fuel gauge is stuck at one bar past half. I've filled it to full twice but it doesn't budge. I've driven it 300+ miles, but the gauge doesn't move up or down. I'll not fill it over the weekend to see I it'll go down.
2010 Toyota Prius 79,100 mi,
The fuel gauge shows three bars, but the miles to empty is showing 10.
2010 Toyota Prius 133,000 mi,
Fuel gauge was down to empty, indicate good for 20 miles, went less than 2 miles to gas station and filled up, gauge did not go up, have gone about 125 miles since (3 trips) and still reads empty, and now has a steady buzz that I want to stop buzzing.
My fuel gage is stuck on half but the tank should be full.
2005 Toyota Prius 101,620 mi,
My fuel gauge is stuck a half full instead of registering completely full.
2011 Toyota Prius 32,000 mi,
Gas guage/display is flashing, indicating near empty. Display is saying I have enough gas for 18-35 miles. I typically get 48-49 mpg, so it means I have less than a gallon left of fuel. Yet, when I fill the tank, I can only put approximately 8 1/2 to 9 1/2 gallons, though my tank holds 11.9 gallons. I have an appointment with dealer tomorrow.
2007 Toyota Prius 109,000 mi,
Fuel gauge will not move from a half tank mark when I fill it with gas
Fuel gauge is not reading correct
Weather has been freezing cold at night? 1000 miles on car. Fuel gauge was working before the cold weather. Now indicator says a have 1/2 of a tank of gas permanently.....it never changes. The idiot light came on saying that I needed gas...so I filled up the tank. The indicator still says that I have 1/2 tank of gas. Prius C
2009 Toyota Prius 68,000 mi,
We filled the tank and it continues to show full. We have driven 200 miles and it still shows full. This cannot be true.
2008 Toyota Prius 143,523 mi,
Fuel gauge indicates empty even though tank is filled.
2006 Toyota Prius 130,000 mi,
Gas gauge recently started to read too low. Reset did not help. Dealer said they'd have to replace the fuel tank to fix the problem. That's sure not worth it!
2008 Toyota Prius 102,901 mi,
Fuel gauge began reading empty (blinking) with 4+ gallons remaining in the tank. Problem first appeared when tire shop placed larger (195 rather than 185) tires on the car. Has not yet been fixed.
2009 Toyota Prius 110,000 mi,
No fix yet, but at this time the car is showing one bar and blinking when I actually have 4 gallons left in the tank.
2008 Toyota Prius 24,000 mi,
My fuel gauge shows three fourths fuel after I fueled up on my 2008 prius.