2011 Toyota Sienna Power Train Problems
- 20
- Owner complaint records in our dataset
Records are owner complaints, not a measured failure rate.
Owner complaint recordsComplaint records reflect reports in our dataset and do not measure how frequently the problem occurs across all vehicles.
Among these 20 stored complaint records:
- 4 indicate a crash
- 2 indicate injury
- 0 indicate fire
What owners report
- rear differential · 6 records
Mileage in stored records
| Band | Records |
|---|---|
| 60–100k mi | 7 |
| 1–30k mi | 5 |
| 30–60k mi | 3 |
| 150–400k mi | 3 |
| 100–150k mi | 1 |
Complaint records
Owner-submitted complaint content, presented as stored.
Power Train
Began hearing a loud whirring sound from rear of car when car is in motion. Got louder over time. Our regular mechanic could not diagnose the noise. Toyota dealership finally diagnosed as a failed electromagnetic rear coupler. Suggested we not use 'cheap tires.' we never have. We actually went through three sets of the recommended 'run flat' tires in under 75,000 miles. As you know, these are not cheap tires to…
ODI 11265848
Power Train
Whirring noise from the rear differential while the vehicle is in motion. The pitch of the whir gets higher as the vehicle accelerates. Cause is a faulty bearing in the electromagnetic coupler assembly.
ODI 11231203
Power Train
This vehicle has all wheel drive and uses an electromechanical coupler on the rear differential. It is very similar configuration to the toyota rav4 that uses a viscous coupler in the same location. My coupler has failed due to the front bearing failing. The vehicle is 8 years old and has about 95000 miles on it. Toyota has issued a technical service bulletin and provided extended warranty coverage for the bearing…
ODI 11207128
Power Train
When accelerating vehicle makes loud humming noise. Stops when you take your foot off the gas. I was told it is the rear differential. I have read many complaints about this faulty part. Why is this not being investigated? $2000 repair.
ODI 11289579
Power Train · Unknown Or Other
Minivan parked but roll away caused injury. The minivan was parked to pick up grocery bags but started rolling away after the last 2bags of grocey
Crash reported · 1 injury
ODI 11187286
Power Train
Tl* the contact owns a 2011 toyota sienna. When the engine was started with the gear in park and the passenger side sliding door open, the vehicle suddenly drove forward and crashed into a concrete pillar. While attempting to stop the vehicle, the contact became trapped between the vehicle and the concrete pillar. The contact sustained injuries to the head, left hip, legs, torso, and both arms. Medical attention was…
Crash reported · 1 injury
ODI 11189725
Power Train
Tl* the contact owns a 2011 toyota sienna. While driving approximately 60 mph, the vehicle started to decelerate. There was no warning indicator illuminated. The vehicle decelerated and stalled. The vehicle was towed to toyota of orange (located at 1400 n tustin st, orange, ca 92867, [redacted]) where it was diagnosed that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was not…
ODI 11179850
Power Train
I was driving the vehicle down the interstate and it started to slow down. The engine was still running. However, the transmission was slipping and i could not maintain the posted speed limit. The only way to keep the vehicle moving was to rev the engine up to between 5,000 and 6,000 rpm. Fortunately, i was able to get to an exit and get the vehicle to a parking lot. At that point, the vehicle would not move under…
ODI 11075851
Power Train
There is a safety recall b0h issued by toyota that only impacts certain 2011 model year siennas. This is where the right hand front drive shaft assembly is impacted. The vehicle of my 2011 toyota sienna does not match those vehicle identification number(s) that are impacted by this recall. My vehicle is exhibiting the exact same issue that other 2011 toyota siennas are running into but my vehicle vin number is not…
ODI 11040178
Body · Power Train
Tl* the contact owns a 2011 toyota sienna. While driving approximately 30 mph, a loud noise was heard underneath the front end of the vehicle without warning. The vehicle was towed to sonoco auto shop, lexington ark, md, where it was diagnosed that the front right drive shaft was fractured. Also, the front driver side drive shaft was faulty. The technician recommended that both parts needed to be replaced. The…
ODI 10992208
Power Train
Tl* the contact owns a 2011 toyota sienna. The contact heard a whining noise from the rear of the vehicle whenever the vehicle was being driven over 10 mph. The contact took the vehicle to the stevenson toyota east dealer ([redacted], aurora, co 80012; [redacted]) where it was diagnosed that the rear defrensioner coupling failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware…
ODI 11021730
Power Train
At appx 50-60k miles, my rear differential began making a loud whirring sound. No specific 'time' of failure..just a gradual buzzing noise. Diagnosed as a bearing failure in a coupler from the local toyota service dept. $2500.00 fix. Research shows the rav 4 to have had same faulty problem, but there was a recall for rav 4 owners. Why not a recall for siennas? One would think toyota would assume siennas were bought…
ODI 11160882
Power Train
I'm owner of toyota sienna 2011 5 years 2-nd owner 79k miles and experience whirring noise in rear differential after visiting toyota dealers without any success accept price tag for replacement rear differential coupler. After that do some research and find the other owners experience that same issue find that tsb #tsb-0080-13 nhtsa id #10052631 with model rav4 use this same differential coupler have extra extended…
ODI 10883703
Power Train · Service Brakes · Vehicle Speed Control
I pulled into a relative's gravel driveway which has a very large parking area to the side. I pulled up to about two feet from their grassy area, got into position to back up into a parking space, stopped, and put my 2011 sienna into reverse, and as soon as i gently touched the excelerator to begin backing up the van sped forward at a high rate of speed crashing into and over an 8 inch railroad tie that had a…
Crash reported
ODI 10790549
Engine · Power Train · Service Brakes
Hello, i own a 2011 sienna le v6. In cold weather, it has a problem when braking where the vehicle lurches forward as it comes to a stop. The dealer drove the car and noted no issues. However, as you can see on this internet thread, many other owners have the same issue. Http://www.siennachat.com/forum/193-problems-maintenance-repair/158410-engine-revving-up-just-before-stop.html this issue is not just annoying, i…
ODI 10662639
Power Train
Hello, i own a 2011 sienna le v6. In cold weather, it has a problem when breaking where the vehicle lurches forward as it comes to a stop (a significant increase in rpm is seen just as the vehicle is about to stop). So much so that it seems as though it's giving itself gas (increased rpm) and driving itself, creating a hazard. I can literally take my foot off the brake pedal and the van will increase it's speed to…
ODI 10689798
Power Train
Tl* the contact owns a 2011 toyota sienna. The contact stated that while driving 65 mph, the vehicle lost power and decelerated to 25 mph before stalling without warning. The contact was able to restart the vehicle but the vehicle would accelerate over 5 mph. The vehicle was taken to the dealer and was test driven. The dealer was able to recreate the failure but the vehicle was not repaired. The vin was not…
ODI 10460806
Electrical System · Power Train · Service Brakes · Steering
I was parking the car and needed to move the vehicle backward in a parking lot with a slight slope. When i attempted to move the shift lever to reverse the lever locked up and the vehicle started to roll backward. I applied the brakes to no avail and the engine died. The steering was locked. The ignition switch also locked. The vehicle stopped . I called the toyota dealer and the service manager said to apply the…
ODI 10627701
Power Train
Vehicle would expectedly slow down when you accelerate. The loss of power would last between 2 to 7 seconds. I have already taken the car to the dealer since the 15k-mile service. The dealer could not find anything. Nonetheless, the issue is still occurring on a weekly basis. This is a very serious hazard. Affected vehicle could get rear ended as it accelerate from stop lights when it suddenly slows down. What's…
ODI 10458177
Power Train
The car accelerates very rapidly in reverse after a cold start. A morning a few days after buying the car, i started it up, shifted into reverse, and slowly released the brake pedal. The car began accelerate backwards so rapidly that i thought i must inadvertently put my foot on the accelerator. I pulled my foot away from the pedals but the car continued to accelerate. I shifted into park, but before there was any…
Crash reported
ODI 10402983