hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
70,900 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.

2011 Toyota Sienna fuel system problems

fuel system problem

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2011 Toyota Sienna Owner Comments

problem #4

Dec 012016


  • 70,000 miles


My car is revving uncontrollably and lurching forward when braking. The engine does not decrease its revolutions in lone with braking. Its either a transmission dropping to a lower gear and lurching forward ir the accelerator pedal us sticking. It happens all of the time and is unsafe coming to stops near croas traffic.

- Bloomington, IN, USA

problem #3

Feb 032016


  • 80,000 miles
Complaint: Toyota Sienna 2011 SE on 2/3/2016 I took my 2011 Sienna to the local Toyota dealership because the information display screen indicated vsc system warning and the engine light, trac system light, and warning lights were on. After diagnostics the service advisor explained that fuel emission switch valve was stuck in the off position. The technician report identified the part as P2440 evaporative emission pressure switch valve. The switch regulates the amount of gasoline pumped into the tank through the intake and outtake of air. Vacuum hoses connect the valve to a ┐charcoal canister┐ which collects gas fumes from the tank and routes them to the engine for combustion. Unfortunately, Toyota sells these various components in emission system as one unit. The part was $537.92 and $148.88 for labor. The suggested cause was overfilling the gas tank. We have never had a problem filling up tanks (stopping before the point of overflow) with many previously owned Toyota trucks and sedans. The core of my grievance is the fact that the owner's manual does not specifically caution the owner that this practice can damage or cause a malfunction of the emission system. The manual only cautions the person pumping fuel ┐do not spill fuel during refueling.┐(P.150 in refueling section). If this was the real cause for the needed emission part replacement I hope that Toyota will write a clear warning about the consequences of "filling up" in their manual or consider redesigning the emission system. Perhaps this complaint will prevent another Toyota customer the cost and dissatisfaction of this same experience.

- Camden, SC, USA

problem #2

Nov 182014


  • 90,000 miles
The weld at the top of the hinge on the fuel filler door has broken, so the door will not close. This prevents opening the sliding door on the driver's side. I have children and would need the ability to evacuate passengers quickly and easily in the event of an emergency. One of my passengers is restrained in a car seat that I need to activate in order to remove the child from the car. The door cannot be opened more than a few inches with the broken fuel filler door as an obstruction, so it creates a major safety issue.

- Waukegan, IL, USA

problem #1

Jul 052014

Sienna 6-cyl

  • 43,600 miles
I stopped for gas and was unable to open the fuel filler door. Because of the fuel filler door failure, I was not able to open the driver side passenger door. I drove the vehicle home and upon further investigation, I discovered the top fuel filler door hinge was broken free. The broken hinge allowed the passenger door activation switch located behind the fuel filler door to pop out which de-activated the passenger door operation. In the event of an accident, the driver side passenger door would not be able to be opened.

- New Lenox, IL, USA

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