pretty bad
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
3,333 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2005 Toyota Prius fuel system problems

fuel system problem

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2005 Toyota Prius Owner Comments

problem #3

May 312006

Prius 4-cyl

  • Automatic transmission
  • 6,000 miles


: the manufacturer was consulted and determined the fuel tank was operating properly. Updated 6/27/2006 - the fuel tank in the consumer's vehicle is flexible. Each time the consumer fills the vehicle, the tank accepts 2-4 gallons less than designed. If the consumer slow the fuel pump to allow the additional gallons in the stop mechanism does not activate causing the fuel tank to overflow. The consumer receives 100-150 miles less per gallon.

- Hot Springs Village, AR, USA

problem #2

Jan 182006

Prius 4-cyl

  • Automatic transmission
  • 4,000 miles
Monitored the fuel gauge on the dashboard of 2005, Toyota Prius in order to know when was running low on fuel. Has been keeping a log of fuel consumption, mpg and miles driven. Typically, ihe filled up the tank when the display showed only 2 or 3 bars remaining out of 10 bars when full. Based on the cars 11.9 gallon capacity each bar should indicate approximately 1.19 gallons of fuel. In the past it has taken 7-8 gallons to fill up the tank when the display got down to 2 or 3 bars. However, there have been several occasions where it has only taken 4.5 gallons to fill it up. Also there were 4 instances when attempting to fill tank up after the display showed 2 bars remaining, and it only allowed me to pump 3 gallons of fuel before the pump shut off. As much as I tried could not get any more fuel to go into the tank. When I started the car it only showed 6 bars on the display. I drove around the block and pulled into the service station again and attempted to put in more fuel. It only took about.2 of a gallon, but this time the display showed 10 bars. It seemed obvious that something was wrong with the fuel tank sensor system. A fuel gauge should provide an accurate indication of the number of gallons of fuel remaining.

- Janesville, WI, USA

problem #1

Nov 292004


  • miles
The vehicle's gas needle indicated that the tank was half full. When the consumer attempted to refuel the vehicle, the pump shut off after only depositing 1.1 gallons of fuel into the tank. The consumer stopped a second time to try to fill the fuel tank and inserted the pump into the tank. After the attempt to fill the tank, the consumer removed the pump from the tank and fuel shot out of the tank all over the consumer. The fuel gauge still showed half of a tank. The consumer was told that the part needed would be a couple weeks and was forced to drive the vehicle. After driving the vehicle the consumer noticed that fuel gauge still in the same place. The dealer fixed the problem stating that water somehow got into the fuel cut off valve and caused the vehicle not to accept fuel. In driving home the consumer stopped again to get fuel and the same problem occurred.

- Tolono, IL, USA

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