Other fuel system problem on the 2011 Toyota Prius
Only 7 reports for this mode came with an odometer reading, which is too few for percentiles to mean anything. The page is here because someone linked to it; treat the figures as anecdotes, and see the full report for this year instead.
When other fuel system problem gets reported
There are 9 reports of other fuel system problem on the 2011 Toyota Prius, 7 with a mileage attached. That is too few to place the failure on the odometer with any confidence.
A part like this is normally expected to survive 90,000 miles. It is the 16th most-reported problem on this model year.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| — | — | 115,000 miles | — | — |
Read the 10th percentile as “one report in ten arrived this early”. Exact figures are shown in this table because it is the table of record; everywhere else on the site they are rounded to the precision the sample can carry.
What a percentile can and cannot tell you here
These five numbers describe the readings owners gave, in order. The median is the middle one: half the reports arrived below it. The 10th and 90th are the edges of the bulk of the distribution, and the distance between them is the part worth reading. A tight spread — say 70,000 to 95,000 miles — points at something that wears out on a schedule, and the schedule is knowable. A wide one, 20,000 to 190,000, points at a fault that hits some cars and never troubles others, which means the mileage on the listing in front of you tells you very little about your odds.
What these figures are not is a survival curve. Every reading here comes from a car whose owner filed a complaint, so the sample contains only failures: it cannot say what share of the fleet made it past 150,000 miles untouched, because those owners had nothing to report. Nor is the mileage the moment of failure — it is the odometer reading as recalled at the time of filing, which may be weeks later and is sometimes rounded to the nearest ten thousand by the person typing it.
Percentiles are shown at all only once 8 readings exist for the vehicle and mode. Below that the middle of a handful of numbers is noise wearing a decimal point, so the figures are withheld rather than dressed up.
What happens, and what it costs
Putting it right typically runs $300–$2,200 at an independent US shop. That range is an editorial estimate held in this site's failure-mode catalogue, not a figure from NHTSA, and it is a repair cost rather than a diagnosis cost.
The same failure on other years
The same failure is reported on 14 model years of this car. It shows up earliest on the 2009, at a median of 10,000 miles, and latest on the 2011 at 115,000 miles.
By volume the 2010 carries the most reports, with 43; the 2011 has 9. A mode that appears across most years of a model is usually a design choice rather than a bad batch.
If one year stands out to the left, that is the year to avoid; if the whole line sits at a similar mileage, this is wear rather than a defect in one production run.
Tick median reported mileage Solid middle half of reports Faint 10th to 90th percentile Colour how bad the failure is when it happens
What owners wrote
Verbatim from NHTSA complaint narratives, trimmed for length. The mileage is the one the owner gave.
On april 3 2012 we drove our 2011 toyota prius to a full and complete stop at a stop sign in a residential neighborhood. While we were stopped, the car surged forward approximately 5 feet before coming to a stop. My wife, who as driving looked down to check that her foot was on the brake. While staring at her foot squarely on the brake, the car surged forward again about 3 feet. The car then surged forward again about one foot before stopping. Luckily there was no crossing traffic, pedestrians or any other obstructions. No collision occurred and no one was hurt. We called toyota care immediately and they promptly picked up the car and took it to the dealer. The dealer later called us and informed us that they had diagnosed the car and that no problem could be found. We disputed that we were unwilling to take the car back until a problem was found and they told us that they had done everything they could do and even had driven the car 10 miles with no incident. I informed them that we had driven the car nearly 10,000 miles and it happened once. Once is too many times. The dealer told us we had to take the car back. We asked for a…
My car hesitates to stop or slow down when brakes are applied driving over a pothole, slick surface, metal road cover or a manhole. Instead of slowing/stopping, the car seems to eject forward. I took it to the dealership where I bought my car and drove with a service tech and he said in over 20 years of his experience, he's never seen this. I tried to explain that this car (and technology with regenerative braking) is only 3 years old, but he didn't seem to buy my complaint, nor were we able to reproduce this issue when I drove with a technician around the block. There are several online discussions regarding this particular issue : http://money.cnn.com/2010/02/04/autos/prius_timeline/?wpmp_switcher=mobile http://www.eetimes.com/author.asp?section_id=30&doc_id=1284377. *tr
In motion while accelerating past a slower car. Heard and felt a pronounced thump and lost engine power on busy local thoroughfare. Moved to a turn lane and stopped. Multiple dashboard lights and "check hybrid system" on LED display. Power off car, and back on twice and got the same error on display. Found that car could move on ev power and I got it into a safer location at an adjacent parking lot. Had vehicle towed to repair facility. As a driver this was disconcerting as I could not clearly determine if the car was at all driveable. If a driver were to stop immediately in the same situation they would be on the roadway. If I had not pressed on the accelerator pedal after powering on the car again I would not have known I could move the car to a safer location. Display should read "hybrid system failure" then "limited ev power available" then "move to safe area if necessary" cause: hybrid inverter failure. Repaired by toyota under 2014 eoe and new 10/2018 recall j0a
Also reported on the 2011 Toyota Prius
Other brake problem
Master cylinder or brake booster failure
Other electrical problem
Headlight failure or clouding
Other engine problem
Other speed control problem
How far this goes
This page is kept out of search results because 9 reports is not enough to publish percentiles from. It stays reachable because somebody looking at this exact car would rather see the reports than be told there are none.
Complaints are voluntary, so 9 is a floor and not a count of affected cars. Mileages are typed in by owners and cluster on round numbers. And the mode itself is assigned by software reading the complaint text, which is reliable in bulk and fallible one report at a time.
Questions this page answers
At what mileage does other fuel system problem happen on the 2011 Toyota Prius?
Across 7 owner reports that included an odometer reading, half were filed by 115,000 miles. A quarter were filed before — and a quarter after —. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is other fuel system problem on the 2011 Toyota Prius?
9 reports have been filed with NHTSA, about 0.1 per 1,000 vehicles. Complaints are voluntary, so this is a floor rather than a count of affected cars.
What this is and is not. These are the mileages at which owners chose to complain to a federal agency, which is not the same as the mileage at which the part fails on every car. It skews toward failures that happened outside warranty, cost real money, or frightened someone. It is still the only public dataset that carries failure mileage at all, and the shape of a few hundred readings is informative even when a single one is not. Methodology · JSON · this failure on other cars
Source Owner complaints and recall records published by the US National Highway Traffic Safety Administration, model years 1996–2027 Figures rebuilt Published by AtWhatMileage How every figure is computed