217 of the
10,828 complaints filed about the Toyota Sienna
are about the fuel system —
2% of everything owners reported.
The worst model year for it is 2004.
Sluggish start when hot - fuel pump leak into engine when hot, causing starter issues, wears out starter, causes other stress on engine. Common issue in Toyota Siennas. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11748426 — an unverified report by a vehicle owner.
While driving at speed, the vehicle suffered a sudden and complete loss of engine power and stalled in traffic. The vehicle was diagnosed by an independent mechanic who found a failed factory-installed Denso fuel pump module. This failure mirrors Toyota Safety Recall 20TA02 (NHTSA Campaign 20V012) for the exact same model year 2017 Toyota Sienna, but my specific VIN is currently excluded from the recall list. The un-recalled defective component created an immediate highway safety hazard as me and my family were left stranded in the middle of the road. We waited for hours at the risk of oncoming traffic until we were able to have a tow truck lift the van and take to the nearest repair facility (an independent service center - Goodyear Auto Service). The repair facility diagnosed the problem and confirmed that the fuel pump failed to generate enough pressure causing the vehicle to stall and not start again. To correct the problem, the fuel pump was replaced with an OEM toyota fuel pump module assembly.
NHTSA complaint #11745697 — an unverified report by a vehicle owner.
The vehicle is a 2020 Toyota Sienna. While driving, the engine suddenly shut off without warning, creating a dangerous situation and loss of power. This occurred while transporting children, increasing the safety risk. A mechanic inspected the vehicle and diagnosed a failure of the low-pressure fuel pump. The problem appears intermittently — sometimes the vehicle runs normally, and other times it stalls or loses power. The check engine light has turned on and off. This issue matches the known defect related to the Denso fuel pump recall affecting many Toyota vehicles from similar model years. However, my VIN is not included in the recall. This is a serious safety concern because the engine can shut off unexpectedly while driving, which could lead to an accident. I believe this vehicle may have the same defective component as those included in the recall, even though it is not currently listed. The issue has been confirmed by an independent mechanic and the vehicle is available for inspection if needed.
NHTSA complaint #11733827 — an unverified report by a vehicle owner.
Catalizador caUsando bajas emisiones, consecuencia encendido de codigos de luz de advertencia de tablero como luz indicadora de falla (Check Engine). LUZ DE ADVERTENCIA ABS. LUZ INDICADORA DE DERRAPE VSC-TRAC Y LUZ DE ADVERTENCIA DE PRESION DE NEUMATICOS. AL VIAJAR POR CARRETERA SIMPLEMENTE SE APAGO Y SIN PODER TENER CONTROL DE LA MISMA DICHA FALLA CAUSO QUE YA NO ENCENDIERA AL TENER QUE SOLICITAR GRUA PARA EL ARRARSTRE DE LA UNIDAD HASTA LA AGENCIA DE TOYOTA EN CORDOBA VERACRUZ. SEGURO SOLO INTERVINO CON EL ARRASTRE DE LA UNIDAD. PERO LA SIENNA A LLEVADO HASTA EL DIA DE HOY Y FECHA PRESENTE TODOS LOS SERVICIOS DE AGENCIA POR LA CUAL SE LLEVO DE INMEDIATO, PERO CON LA NOVEDAD ES QUE NI LA MISMA AGENCIA LE A PODIDO QUITAR LA FALLA. NO TIENEN NI LA MENOR IDEA DE LA CAUSA. SU SOLUCION SEGUEN ELLOS ERAN LOS INYECTORES PERO LA CAMIONETA VOLIVIO A HACER LA MISMA FALLA Y LA AGENCIA NO DA GARANTIA DE SU MANO DE OBRA. SOLO AUMENTA EL GASTO EN REFACCIONES SIN SOLUCIONAR LA FALLA.
NHTSA complaint #11695158 — an unverified report by a vehicle owner.
Hi, I’d like to report a serious issue with my 2018 Toyota Sienna related to the recent fuel system recall. Since the repair, the vehicle has leaked all of its gasoline not once, but three separate times. One of those times, my family was inside the vehicle, and the smell of gas was overwhelming. The car wouldn’t start, and it was clearly an unsafe situation. Now the dealership is charging me $1,400 to replace the fuel pressure hose and clamp, which, after thorough research and review, appears to be directly related to the process they followed when replacing the recalled fuel pump. I’ve also tried contacting the service manager, but I haven’t received a call back. That’s why I’m now requesting that Toyota open a formal case to investigate this properly. I believe this repair should be covered, and I’m asking for support from Toyota directly.
NHTSA complaint #11672868 — an unverified report by a vehicle owner.
October of 2024 my van stalled while I was driving. The van was towed to an auto shop. The shop suspected a battery & alternator so replaced it. Later that same week I filled my tank at Delta Sonic and immediately proceeded to the car wash. My van stalled in the car wash. Once I was pushed out I had it towed again. I drove it for a few weeks and filled up the tank at Delta Sonic but this time the van didn’t start at all. Towed the van again. Shop thinks my issue is resolved- did a complete check of everything & returned my van to me. A week or so goes by and I filled my tank late at night and it wouldn’t start after fill up. A tow was not available. Scared and frustrated I called multiple people for help. Two hours pass, before I try to start the van again. It starts. Now I am starting to correlate a fuel fill up with my van not starting after re-fueling. My safety and my grandchild’s safety was jeopardized when my van stalled while driving in an extremely busy roadway. The next time, Multiple people had to push me out of the car wash and the last time I was forced to sit at gas pumps waiting for help. I stop filling my tank to full and take the van to Toyota. They confirmed the fuel pump was the issue and fixed it.
NHTSA complaint #11661747 — an unverified report by a vehicle owner.
Was driving on highway at 60-65 mph. The car continued to accelerate. Pressed on brake and wasn't slowing the vehicle. The driver was weaving in and out of cars as the van started to creek up to 92 mph. The driver and passengers thought they were going to crash and possible die. The driver tried the brake multiple times and nothing. The driver said the accelerator pedal wasn't pressed all the way down to the floor. It was half way and driver had to go down and pull up on the pedal while driving. The van then started to slow and driver was able to pull over to have the van evaluated . The throttle body was reached and cleaned of carbon because it said that this may have been part of the issue. Never has this van taken off like this. The throttle body cable wasnt loose or disconnected either. So far we havent been able to recreate but 3 people could have been killed.
NHTSA complaint #11635166 — an unverified report by a vehicle owner.
The contact owns a 2017 Toyota Sienna. The contact stated that after parking the vehicle, the odor of fuel was present coming from the engine compartment. The vehicle was taken to the local dealer who discovered that the plastic fuel lines were damaged due to the expanded anti corrosion coating applied to the fuel lines during manufacturing of the vehicle. The contact was advised to replace both the metal fuel lines from the fuel tank to the engine bay and the damaged plastic fuel lines. The vehicle was repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was 84,416.
NHTSA complaint #11620939 — an unverified report by a vehicle owner.
For about five months now, when we COMPLETELY fill our gas tank (2017 Toyota Sienna) even to the point of overflowing bit, the dashboard Fuel Indicator red arrow no longer goes all the way over to the right AND the "distance until empty" mileage is much less than what it should be (ie 306 miles vs approx 440 miles). We have tried the resets, which don't work. We only use good-grade gasoline.
NHTSA complaint #11612376 — an unverified report by a vehicle owner.
There is an EVAP emission leak and the P0456 error states the gas cap is faulty. I had it replaced and replaced again. So I am waiting for another brand new gas cap-3rd brand new one. So 4th overall for this van. A smoke test was done and there is no leaks per the test. So if this continues after the brand new gas cap, then there should be a recall as the gas cap is an issue. Started to happen after 95,000 miles. The AWD is shut off and goes to 2 wheel drive, traction control is turned off, Check Engine light comes on and Message Check AWD system comes up on the screen. Any recommendations
NHTSA complaint #11586715 — an unverified report by a vehicle owner.
When accelerating, both from a stop and/or at speed, there is a definite hesitation. When gas pedal is pressed down, there is a noticeable pause before acceleration begins. This causes safety issues especially when accelerating to merge with moving traffic. Have owned this van since Oct 2021, and it has always been an issue. Possible fuel filter problem. Have not reported issue to dealer. Currently under extended warranty.
NHTSA complaint #11566964 — an unverified report by a vehicle owner.
The contact owns a 2017 Toyota Sienna. The contact stated that while driving at an undisclosed speed, after coming to a complete stop and attempting to accelerate, the vehicle suddenly stalled. After restarting the vehicle, the vehicle returned to normal functionality, but the failure became a regular occurrence. The traction control warning light was illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the transmission. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 20V682000 (Fuel System, Gasoline) however, the VIN was not included. The manufacturer was not notified of the failure. The failure mileage was 65,000.
NHTSA complaint #11556249 — an unverified report by a vehicle owner.
While traveling at a high speed, van's power train jerked hard and rapidly slowed on its own, not allowing me to excelerate. Almost rear ended by following vehicle that managed to swerve around to avoid my rapid deceleration. Check engine light came on and was hard to start. Had to allow the van to sit a while before I was able to start. Van acted like it was in limp mode. This malfunction has occurred several times. Mechanic code shows P0087 fault code. Low fuel pressure. Toyota has recalled many of these vehicles in this year for this issue, but mine seems to not be one of them. Very dangerous.
NHTSA complaint #11539491 — an unverified report by a vehicle owner.
Car was recalled for fuel pump and I repaired in 8/2020 with approximately 11,190 miles. I had complained that car, since time of purchase and had 4662 miles when I insisted Toyota fix this, (hunted for gears, hesitated, lagged when accelerator pushed, and had poorer gas mileage than expected). The car now has 34,875 miles on it and is doing the same thing, hesitating, lunging between gears. Our mechanic confirmed this and stated worse when using a.c. Called Toyota Customer Service and they said the car was out of warranty for the pump repair, but perhaps not the power train, transmission, etc. Have not gotten back to me yet, but has not been one working day after spending 2.5 hours on the phone with them yesterday. This is a safety issue, I press on the gas to make a turn and it lags leaving me in traffic. My 2007 Sienna, which is still running for my daughter, never did this and has full power when called upon. Toyota needs to repair the entire fuel system, transmission, if they cannot fix this. There are no warning lights when this happens & it is happening more frequently. Dealership told me they could not put another pump on car and to contact Toyota Customer Service and gave me the number. When we had the car for about a month, dealership said we were just not used to driving a car with this type of transmission and car was low on oil, we added oil and dealership said we used the wrong type, but we figured some oil was better than no oil. We are boomers and have been driving cars for decades, with clutches and without and we know how to drive a vehicle.
NHTSA complaint #11528072 — an unverified report by a vehicle owner.
Today 4/7/23 My 2017 Toyota Sienna accelerated on its own. I was driving my 4 children to school and we were at a stop light. When I took my foot of the brake to start making a turn the car gunned it around the corner. It scared everyone in the car half to death. Thankfully no one was hurt but it looks like others on here haven't been so lucky with this issue. I hope toyota does the right thing a d fixes this issue before more people die.
NHTSA complaint #11515946 — an unverified report by a vehicle owner.
The fuel line under the intake ruptured when I started my car on 2/21/23. The repair shop said they had never seen one fail like this. I do not have the parts. I was fortunate to be at home and that the engine wasn't hot when this happened so there was no fire. I had an issue starting the car ~ 1 month before that, but I don't know if the issue was fuel related. The car had been sitting for 1 week prior to that issue.
NHTSA complaint #11509440 — an unverified report by a vehicle owner.
The 2GR-FE engine on my Sienna has experienced a front timing cover leak. It's slowly leaking oil out of my vehicle and I'm afraid it will get worst over time. My vehicle has less than 100K miles and if the leak persists, I down want my vehicle breaking down and leaving me stranded.
NHTSA complaint #11509227 — an unverified report by a vehicle owner.
On a warm day after driving the van about 15 minutes then stop for 15 minutes or more. It is taking longer than usual to crank the van. I have search around online. It seems like a common problem Sienna's fuel pump. People on "SiennaChat - https://www.siennachat.com/threads/engine-starts-great-cold-or-hot-long-crank-when-warm.59549/page-2 " website is talking about it. My concern is that one day it could stall while driving on the highway. Since, it is fuel related issues. Without fuel supply engine will halt.
NHTSA complaint #11500084 — an unverified report by a vehicle owner.
The van has been periodically hesitating, rough idles, and when parked the rpm revs. On 9/13/22, the van was shaking, hesitating, and would not accelerate. It was undrivable and had to be towed. We took it to Toyota of Irving where they charged us $725 to flush the gas and clean the fuel injection system. Despite this, it is still hard idling and hesitating.
NHTSA complaint #11484734 — an unverified report by a vehicle owner.