2017 TOYOTA SIENNA Complaints

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.

Brand new factory tires from the dealership only lasted 32k miles. Tires were replaced with the recommended tires for this vehicle and after 22k miles, there is significant wear where they will need to replaced again in the coming months. Each set of tires are 60k tires, and they are rotated and aligned religiously every 5k miles. However, each set of tires had excessive wear, no where near commensurate with the age of them. I will soon be on my third set of brand new tires when my van will only have roughly 58k miles on it. And per a general google search, it seems this is happening to a lot of Toyota Sienna owners. There needs to be an investigation as to why Siennas excessively wear their tires. I used to easily get around 60k miles with my tires on my previous vehicle, as I rotated and aligned them religiously to ensure their long life.

Today I had a crash and luckily walked away. I went down an embankment at speed into trees where the vehicle rolled and struck trees head on. All the vehicle airbags deployed and vehicle came to rest on the drivers side. Although there was electrical power and the engine still running none of the right side doors would open and neither would the rear hatch which was clear of obstruction! Had there been a fire I wouldn't be making this report! Doors need to be operable regardless of situation when none of them are jammed from an accident!

2nd row passenger side seat belt receptacle is not latching seat belt. The contact stated that a replacement part was ordered but not needed. It was discovered that the original part had debris inside and was cleaned out. The original part started working again and a repair was no longer needed.

The contact owns a 2017 Toyota Sienna. The contact stated while driving 60 MPH with her four children in the rear seats, the vehicle started jerking and decelerated independently. Additionally, the transmission was slipping. There was no warning light illuminated. The contact continued driving; however, the transmission continuously slipped out of gear. The vehicle was towed to the dealer where it was diagnosed that the failure was associated with Toyota UA80 Transmission program. The dealer contacted the manufacturer who agreed to cover the repair of the vehicle. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was approximately 45,000.

Wire harness section which controls the Parking Collision Warning and Rear Cross Traffic Warning is frayed, causing failure. This failure was determined by the dealer to be caused by mud packing into the rear bumper cavity. Dealer wanted over $1,000 to fix. Denied warranty, due to the cause being "an outside influence". There is no way to effectively wash the inside of the bumper without removing the bumper. If I pay for a new wire harness, the issue will re-occur. This poses an elevated risk to my family and any occupants of the vehicle, as key safety features must be disabled.

The contact owns a 2017 Toyota Sienna. The contact stated that while driving approximately 80 MPH, the side rail roof rack detached from the vehicle. Additionally, the oil warning light was illuminated. There were no reported injuries. The contact's personal property was damaged during the failure. The contact called the local dealer but the vehicle was not diagnosed or repaired. The contact called another local dealer, Mark Toyota of Plover (1765 Park Ave, Plover, WI 54467) however, the vehicle was not diagnosed or repaired. The manufacturer was notified of the failure but no additional assistance was provided. The approximate failure mileage was 59,000.

I was driving my 2017 Sienna on 5/10/2022 and was approaching a roundabout. As I was going thru the roundabout, my van stalled. I coasted into a gas station. After a few minutes I notice smoke coming from under my hood. I popped the hood and noticed the smoke was coming from the air intake. We called AAA and they towed it to the dealership we bought it new from and had all services done at. The next day we authorized them to do a diognostic on it where they found a burnt airfilter and melted housing. Heiser Toyota in Milwaukee WI has not repaired the van yet and we wanted to talk to Toyota customer service and your office to see what we should do. We called insurance and a claim has been started - not sure if they have inspected the van yet. It is available for you to inspect. All warning lights were on when it stalled. There was no power loss or any warning before it stalled.

The fuel pump has an issue leading to a check engine light and compromised engine performance. It has been inspected by an independent service center.

The hood crumples like aluminum foil. The hood rod was holding the hood up and the slightest pressure on the hood made it bend. The hood should NOT bend as easily as it did. The fragility of the hood could cause a serious issue in the event of a crash.