really awful
Crashes / Fires:
15 / 0
Injuries / Deaths:
4 / 1
Average Mileage:
56,022 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.

2005 Toyota Sienna engine problems

engine problem

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2005 Toyota Sienna Owner Comments (Page 3 of 3)

« Read the previous 20 complaints

problem #9

Sep 152008


  • 71,000 miles


July 2008 I was driving my 2005 Toyota Sienna I was on the ramp to enter the highway doing 35mph when my car suddenly jumped to 75mph without me touching the gas pedal. I stayed calm because my kids were in the car with and I didn't want to scare them. Thank god I jumped in the next lane where were not to many cars and just pressed the brake pedal hard thank god the car slowed down. I knew something was wrong with the car. I took to the mechanic he found nothing out of place. It later happened again maybe two weeks late this time I was on city streets and did the basically the same thing as before. I recently saw reports and I was not alone and was something very wrong with the Toyota system. Please do something before any more people get hurt.

- Chicago, IL, USA

problem #8

Apr 092009

Sienna 6-cyl

  • Automatic transmission
  • 40,000 miles
The contact owns a 2005 Toyota Sienna. While driving between 5-6 mph, another vehicle ran a stop sign and struck the left rear driver's side of the contact's vehicle. Her vehicle fish-tailed and turned to the left. The vehicle accelerated and struck another vehicle. The contact had no control over the vehicle. She attempted to place the vehicle into park, but was unsuccessful. The engine revved and the vehicle accelerated again. The vehicle struck a curb, a boulder, and then a palm tree before coming to a complete stop. The brakes failed to operate during the incident. A police report was filed and there were no injuries. The vehicle was towed to a GMC dealer and they test drove the vehicle, but were unable to duplicate the failure. The vehicle is still at the GMC dealer and will be appraised. The failure and current mileages were 40,000. Updated 5/7/09 updated 05/11/09.

- Port Charlotte, FL, USA

problem #7

Sep 142005

Sienna 6-cyl

  • Automatic transmission
  • 1,000 miles
The contact owns a 2005 Toyota Sienna. While driving at various speeds, the vehicle decelerates on its own. The vehicle jerks when the contact depresses the accelerator pedal. The dealer reprogrammed the software for the throttle, however, the failure still occurs. The current mileage was 35,300 and failure mileage was 1,000. Updated 01/09/08. The consumer stated has had problems with the door of the vehicle. Updated 12/12/07

- Encinitas, CA, USA

problem #6

Aug 272005

Sienna 6-cyl

  • Automatic transmission
  • 875 miles


On several instances when you let off the gas to go around a corner then when you accelerate nothing happens then the engine tries to compensate by over revving. On another occasion pulled into traffic, stepped on the gas nothing happened for several seconds, almost broadsided.

- Manlius, NY, USA

problem #5

Aug 012005


  • miles
I pulled into a parking lot and made a right turn to pull into a parking space. I was halfway into the space, my foot was on the brake pedal, when I felt the van jerk-it then suddenly accelerated, went over the raised curb in front, onto the exit lane of the shopping center, turned around back into the parking lot(the wheel was turned to the right still),hit the building breaking a couple of windows, and then came to a stop after hitting a barricaded dumpster along the way. All the while I was hitting the brakes, but they didn't seem to work. The airbag deployed in the process, the front of the van was badly damaged. Thankfully there were no pedestrians in the lot and I didn't hit any other vehicle and my son and I walked away with minor injuries. I have contacted Toyota. They inspected the van last week and I am waiting to hear their report. The van hasn't been fixed yet-I am waiting to hear from Toyota as to the next course of action. About an hour before this incident occurred, I was pulling out of another parking space in reverse, when the van just stopped and didn't move. I restarted it, put it on reverse and then it moved alright, was bumpy-I thought a tire was flat-stopped and checked to see all of them-they were fine, and after that all was smooth and well until the crash.

- Lake Zurich, IL, USA

problem #4

Jun 272005

Sienna 6-cyl

  • Automatic transmission
  • 3,200 miles
The consumer was made aware of the fact that his vehicle has a laser that sends a message to the cruise control to adjust to the vehicle in front of his. When the vehicle in front of the consumer's vehicle moves away the cruise control is supposed to gradually bring the vehicle back up to the original programmed speed. The consumer 's vehicle, however would jerk quickly back up to speed everytime this happened. The movement was hard enough to jerk the passengers backwards. The vehicle was taken to the dealer who indicated that would call Toyota to check if there was a recall. They called the consumer back and simply told him that the vehicle was designed to do that.

- Milford, OH, USA

problem #3

Jul 112005

Sienna 6-cyl

  • Automatic transmission
  • 8,600 miles


Consumer states: His car hesitates when he accelerates. He just bought the car 2 weeks ago and it has been doing it since he bought the car. It mainly happens when he is slowing down, when he presses the gas pedal; it takes about 1 or 2 seconds to engage. He is concerned this will happen in congested traffic. He has not yet talked to the dealer. He has not yet talked to the manufacturer but he plans on doing that today. Consumer was only able to provide the city, state and phone number of the dealer.

- Augusta, GA, USA

problem #2

May 252005

Sienna 6-cyl

  • Automatic transmission
  • 600 miles
I was backing out of a parking space in a parking lot. I put the car in reverse, place my foot on the brake, put the car into drive, lifted my foot off of the brake and the car immediately began to accelerate without my foot even touching the accelerator. When I put my foot on the brake, the brake pedal went all the way down to the floor without stopping the vehicle. The van struck another vehicle that was parked in the parking lot, went over the curb of the parking lot, down an embankment into a ravine and headed towards a tree. The passenger that was in the front seat then reached over and put the car into park, which brought the car to a stop. The whole time the car was moving I was trying to stop the car by pumping the brakes, but they did not work. The car was accelerating the entire time until the passenger stopped it by shifting into park. The airbags did not deploy. Damage was done to the front passenger bumper and side of the car, the driver's side front tire exploded. After the accident, the brakes did function.

- Murfreesboro, TN, USA

problem #1

Mar 252005

Sienna 6-cyl

  • Automatic transmission
  • 600 miles
While pulling into the garage vehicle suddenly and unexpectedly accelerated and lurched forward through the garage wall into the dining room of consumer's home. Vehicle was towed to the dealer.

- Newburgh, IN, USA

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