2015 TOYOTA SIENNA Complaints

I bought this carseat in March and began using it August 2nd for my infant who was born July 31st. The straps have slowly become an issue. We try so hard to tighten the straps but to no avail. This puts my child at risk if we were to get in accident as he is not secure and the straps are still loose. I did reach out to graco who informed me I had to do a warranty claim. I am not sure yet if thet plan to do anything in regaurds to this issue.

Cable that controls sliding door broke. Door now pops open about 1cm, not enough that you notice that it is open and when you drive it slides open more. It also can't be closed with the button and it's not easy to close.

All interior dome/lights (door side lights, visor mirror lights, all overhead passenger lights, etc) not lighting up at all. Fuse in engine compartment is good. Vehicle has been at auto dealership where originally purchased. Safety concerns are that at night, unable to determine if there has been access by person or if person is actually in vehicle. Vehicle diagnoses was begun on 6/12/2023 and is still in process of issues. Received a call from the service representative on 6/19/2023 that water had accumulated under the fuse box in the engine compartment causing corrosion at the connection of the wire harness to the underside of the fuse box. Initially this caused the the internal lights to fail. There is much more corrosion occurring which will eventually cause a complete electrical failure and possible engine failure/fire. Current recommendation from service manager is to completely replace the wire harness at a cost of $7,000+. Insurance may or may not cover the cost of repair. The insurance adjuster is meeting today with the service manager. In my opinion, this is a serious defect in Toyota Sienna manufacturing, design and materials used.

Door to gas tank fill breaking off. Very common problem noted online by several owners of this vehicle. If it does not close properly the engine will not start. As it begins to break at the hinge the door sticks out. I fear it will fall off one day. Dealer acknowledges this is a problem and knows there is no recall for it. I have seen other exact vans that the door has been removed completely.

Due to poor design, air system intakes (eg under front seats) and outlets have not been protected by grilles, allowing intrusion of rodents into air system blower motor and heat box. I had rodent feces in my air filter system and blower motor and dead rodents in my heat box in Oct 2022 and has recurred in Feb 2023. Rodent intrusion in air system presents serious risk of respiratory illness to humans. Rodent infestation in vehicle can also cause startling to driver which presents an additional safety risk. Air system access should be protected by grilles at all inlet and outlet points.

The contact called on behalf of his mother who owns a 2015 Toyota Sienna. The contact stated while his mother was driving 15 MPH, the brake pedal was depressed but failed to respond, causing the vehicle to crash into the rear of another occupied vehicle. There was no warning light illuminated. The air bags did not deploy. Both the contact's mother and the other driver received assistance from emergency units. The contact's mother sought medical assistance and was informed that she had sustained soreness in the neck muscle. The contact was unsure whether the other driver sustained any injuries. The vehicle was towed to a tow lot. The vehicle was then towed to an autobody shop but was not repaired. The vehicle was then towed to the residence. A police report was filed. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed nor repaired. The failure mileage was approximately 93,955.

My vehicle had been repaired for the recall involving the power sliding doors. The entire cable assembly was replaced. That repair has now failed and the sliding door is inoperable. The cable snapped and the driver side door will not open. I am afraid that it may open while driving, which caused the recall in the first place. I don't want to drive the vehicle for fear of the other sliding door failing as well. These repairs should last much longer than 5 years, especially something as important as the sliding door, where all the children sit. What a huge safety issue for what is supposed to be a vehicle for hauling children around. Luckily the incident happened in a parking lot.

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.

We got into an accident today, and none of the sliding doors would not slide open. It would not even allow us to pull the doors opens. The vehicles electrical was damaged, but that should not prevent the other doors from opening. This is a very bad situation if someone is needing to evacuate the vehicle. The rear passengers would be trapped. Please address this issue with Toyota asap. People who usually have Vans have big families and small children. This would be a very bad situation if vehicle needed to be evacuated asap. The rear passengers would be stuck.

I was at a stop light when I slowly started to lift my foot from the brake pedal. The engine started revving up and accelerate. I pressed the brake pedal normal , then harder when it would not stop revving. I looked down to see if I was hitting the gas pedal by accident. I was not, about after 5 seconds it stop revving. I went about a foot and nobody was in front of me. I going to have it checked out by my dealer. This happened before and I thought it was driver error .When I thought I was hitting the gas pedal and brake pedal. I searched for incidents like mine, but could not find something exactly just similar. I did not look at the dashboard so i do not know if there was a message . So I'm reporting this incident to get answers and alert others of this issue.