2014 Toyota Sienna engine problems

Filed Nov 1, 2026 · Electrical, Engine · CA

On XXX approximately 12:15 pm, I was driving my 2014 Toyota Sienna in [XXX] when the engine stalled while driving at approximately 20 miles per hour, luckily it did not happened on the freeway. I was turning left from [XXX] onto [XXX], the traffic slowed down and I hit the breaks, then the engine stalled. I quickly shifted the car into park position and restarted the car and proceeded to my destination at [XXX] village shopping center. It was a scary situation. This is the second time this has happened. The first time my wife was driving it and I don't know the details. What I know from my wife testimony is that the engine stalled while dropping out kid's at school. I would like for Toyota to address this safety concern. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jul 6, 2026 · Electrical, Engine · PA

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)

Filed Sep 5, 2025 · Body, Engine · 99,500 miles · OH

The contact owns a 2014 Toyota Sienna. The contact stated that while driving 70 MPH, there was an audible alarm coming from the vehicle, alerting the contact that the door was ajar. The passenger’s side slide door opened independently while the vehicle was in motion. The vehicle was modified to accommodate a ramp for the contact's two wheel-bound children. The contact pulled over to the side of the road and closed the sliding door. The contact's husband tied the door to prevent it from opening independently again. The check engine warning light was intermittently illuminated. The vehicle was taken to the dealer, where it was inspected. The contact was informed that two latches had corroded and needed to be replaced. The vehicle was not repaired. Upon further investigation, the contact related the failure to the federal safety agency Campaign Number: 16V858000 (STRUCTURE). However, the VIN was not included. The manufacturer was not made aware of the failure. The failure mileage was approximately 99,500.

Filed Apr 30, 2025 · Engine · CA

Timing chain cover leaking oil. This is known issue on 3.5L V6 model years 2011 -2022

Filed Feb 23, 2024 · Engine · IL

I have 2014 Toyota sienna head gasket problem with less than 100,000 k

Filed Jun 9, 2022 · Engine · CA · fire · 1 injury

Was driving my sienna down he highway, as I was passing someone I lightly accelerated and I heard a loud bang sound. Seconds later I see smoke coming out of the hood so I pull over, about 30 seconds before I pulled over the engine bursted into flames. When the vehicle came to a stop it would not unlock and me and my 2 kids were stuck in a burning vehicle, we barley made it out and my arm got burnt from it, this is the 4th time I’ve had a problem with the engine and 6th time the transmission has had problems. I’ve heard this happen on many other siennas yet it’s not recalled…

Filed May 23, 2022 · Engine · IL

The Toyota 2GR-FE 3.5L V6 engine have a verry comoon complaint of Blown Head Gasket under 100K miles. i own a 2014 sinenna and currently experiencing same issue at 89K miles. i looked online and found that so many people had the same issue and there was no action from the side of the company, they just waited for the 60K miles/5 year to be over so that they can deny the claim. the funny thing is that my vehicles's previous owner purchased an extended warranty which is still valid till September 2022 and the Company doesn't want to honor it. with this issue in mind i cannot take my vehicle for a long with my family, it puts life of my family at risk.

Filed Apr 14, 2022 · Engine · VA · fire

After a short 10-min drive, parked the van in my house's driveway. When I stopped, smoke started coming out of the hood. Which developed into flames and the front of the van was engulfed in flames. Immediately called the fire department to put the fire out. Van is totaly burnt. Managed to move two other vehicles away from the burning van. Aluminum siding next to the garage sustained heat damage.

Filed Jan 28, 2020 · Brakes, Engine · 60,000 miles · CA

After about 60,000 miles my check engine light illuminates with code p0012 every 1,000 miles and when I take it to technician they find nothing wrong after resetting. Then again it randomly appears and has been doing such for the last 10,000 miles. Frustrating. Also the front brakes squeal everytime I touch the brake pedal regardless of which pads I use or if they are new or used.

Filed Dec 17, 2018 · Engine, Transmission · 46,000 miles · MO

Vehicle stopped abruptly with a shake while reducing speed at a traffic signal. I was in the middle of the road. A mild burning smell came out from the hood. The car was serviced one month back and as part of it they did 128 point( do not remember exact number ) and all reported issues were fixed. Around $1000/- was spent on the car. Since battery was just 1 year old, I did not expect a problem with the battery as well. Still I switched off all lights and tried to restart. There was no further response from the vehicle. I was blocking traffic from behind and police came to control traffic. Only option was to tow the vehicle. I took it to the same toyota authorized service center where I did the previous service ( I had purchased the car from the same dealer ). Next day toyota service staff called me and asked details of what happened. By evening they said that some spring break in cylinder 4 which clogged at some other part within the engine. In the process, there are scratches in other parts and the engine oil was filled with metal parts. Senior technician said this is a major issue and they have invited toyota field engineer to come and inspect the engine and associated issues. Preliminary assessment is that the engine might need a replacement as changing few parts may not be sufficient to keep the vehicle safe back on street. Incident happened in city street and when the speed was lowered to 20. Today is monday, but toyota dealer who is doing the service has not updated me yet with the magnitude of complete problem nor the time they need. I am heart broken to hear that the rough order magnitude cost to fix the car is between $18k to $20k.