fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
10,914 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.

2012 Toyota Prius fuel system problems

fuel system problem

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2012 Toyota Prius Owner Comments

problem #4

Jan 092013


  • 15,000 miles


The contact owns a 2012 Toyota Prius. The contact stated that whenever he made a U-turn, the vehicle made a loud noise. The vehicle was taken to the dealer. The technician diagnosed that the fuel sending unit needed to be replaced. The manufacturer was not made aware of the failure. The vehicle was repaired. The VIN was not available. The failure mileage was 15,000 and the current mileage was 16,400.

- Norwalk, CA, USA

problem #3

Sep 262012

Prius 4-cyl

  • 13,104 miles
Fuel indicator on the dash showed 3 bars for remaining fuel. Vehicle ran out of fuel despite showing 3 bars. Oftentimes after tank is filled it only illuminates to 1 or 2 under the top bar instead of showing a full tank. There is obviously a problem that the car is not accurately reporting the fuel level.

- Washington, UT, USA

problem #2

Aug 242012

Prius 4-cyl

  • 9,550 miles
Hybrid engine suddenly shut down without warning while vehicle was traveling 65 mph on a busy freeway, causing vehicle to come an unsafe stop. Depressing accelerator had no effect. Onboard computer gave error message "check hybrid system. Stop the vehicle in a safe place." Restarting vehicle produced the same error message and still unable to shift vehicle into drive or reverse. Fuel tank full at time of incident. Vehicle purchased new 5 months prior from Toyota dealership. No aftermarket parts or modifications present.

- Rolling Hills Estates, CA, USA

problem #1

Jul 032012

Prius 4-cyl

  • 6,000 miles
When driving dashboard "hybrid system not working. Pull over..." this was 7/3/2012. It had run out of gas even though there were 2 bars out of 10 still present on gas gauge. On 7/30/12 later this happened again with 4 bars showing. Got the fuel sensor and gauge replaced on 7/30/12. 8/14/12 with 3 bars showing, cruising range of 60 miles and having gone 480 miles the same warning "hybrid system not working..." I was able to get to a gas station before running out of gas. The Prius manual states the tank holds 9.5 gallons. Filling up the tank took 9.91 gallons. There is clearly something wrong. The fuel sensor and gauge have already been replaced, though. This is a major problem for a new car. This is a new model.

- Alameda, CA, USA

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