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10.0

really awful
Crashes / Fires:
0 / 2
Injuries / Deaths:
1 / 0
Average Mileage:
17,062 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.

2014 Toyota Sienna engine problems

engine problem

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2014 Toyota Sienna Owner Comments

problem #8

Nov 302023

Sienna

  • miles

A D V E R T I S E M E N T S

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

- Arlington Heights, IL, USA

problem #7

May 312022

Sienna

  • miles
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-??

- Los Angeles, CA, USA

problem #6

Jan 292022

Sienna

  • miles
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.

- Skokie, IL, USA

problem #5

Apr 122022

Sienna

  • miles

A D V E R T I S E M E N T S

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.

- Chantilly, VA, USA

problem #4

Aug 062019

Sienna

  • 60,000 miles
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.

- Pomona, CA, USA

problem #3

Dec 132018

Sienna

  • 46,000 miles
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.

- Saint Louis, MO, USA

problem #2

Oct 012014

Sienna

  • 500 miles
As city street braking deceleration is ending, the engine suddenly surges and accelerates RPM. I must immediately apply hard pressure on brake pedal to prevent van from surging ahead and also immediately move automatic shift lever to neutral to disengage power train. After about 2 seconds the RPM acceleration will stop and return to normal. Toyota dealer checked issue multiple times, finding no issues. This is a random occurrence that started shortly after purchase and continues to this day and I've come within inches of smashing into vehicles in front of me. I reported to Toyota corporation but the ombudsman blew me off saying there is no known sudden acceleration issues. No offers to resolve from Toyota. This has happened so many times, I can no longer remember the initial date and exact mileage this issue started to occur other than within the first 4 to 6 months of purchase. Additionally the speed control was never activated when issue occurred.

- Kennesaw, GA, USA

problem #1

Nov 152016

Sienna

  • 30,000 miles
Loss of acceleration after braking. Vehicle will cease responding to the accelerator pedal after braking, will continue to go slowly (~20 mph) for 3-5 seconds, then accelaration will resume. Happens at any time in any situation; brakes just have to be tapped to lose acceleration, has been happening since vehicle new.

- Solon, OH, USA

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