2016 Toyota Sienna Engine Problems
- Complaints
- 4about this part
- Share
- 5%of 76 total for the year
- Median mileage
- 16,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the engine of the 2016 Toyota Sienna, 5% of the 76 complaints for this model year. Where a mileage was given, the median is 16,000 miles. 1 a fire, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Our 2016 Toyota Sienna spontaneously caught fire while parked in our driveway after returning from a short drive. After pulling into our driveway and shutting off the ignition, my wife smelled smoke as she was exiting the parked vehicle. This smoke intensified and quickly accelerated becoming an engine compartment fire. She called for me & then called 911; but in the brief moments it took me to grab a fire extinguisher, the fire further intensified with sizable flames erupting out from around the hood, front grill & underneath the vehicle. …”
NHTSA complaint #11288762, filed 2019-12, 35,000 miles“My 2016 Toyota Sienna that has 16,000 miles was parked at home and I went to go start it and it stalled. The car was towed to hendrick Toyota of apex, nc and they told me that rodents chewed threw the wiring and it was not covered by my warranty. I have complained to both the dealership and to Toyota. I have had another Toyota parked in within the same proximity for over 15 years. I have never had rodent issues with it. I am concerned for the safety of my family. Iif there are mice living inside the car, they could be leaving rat droppings that could be harmful to both of them. …”
NHTSA complaint #11090440, filed 2018-04, 16,000 miles“In cold temperatures, this vehicle model (according to the dealer) does not shift into overdrive right away when driving from a cold-start. This causing a momentary acceleration when braking and presents an unexpected safety issue. I have found this issue posted on several car forums and it appears to affect more than just the 2016 model Sienna, but does not trigger a fault of any kind.”
NHTSA complaint #10939478, filed 2017-01, 6,000 miles“What component or system failed or malfunctioned, and is it available for inspection upon request? The engine/transmission and the vehicle is available for inspection upon request. How was your safety or the safety of others put at risk? While driving the vehicle at the rate of 55-60 mph, the vehicle came to a complete/instant stop without warning — potential causing harm or even death to the occupants of the associated vehicle, and it adversely affected my ability to safely control the vehicle. Also, as the incident was occurring, my drivers seatbelt became very, very tight. …”
NHTSA complaint #11509231, filed 2023-02Related service bulletins
- 11005119Jun 19, 2024This Service Bulletin provides updated non-electric water pump leak inspection and diagnostic tips for some 2008 – 2025 model year Toyota vehicles.
- 11005061Jun 19, 2024This Service Bulletin provides updated non-electric water pump leak inspection and diagnostic tips for some 2008 – 2025 model year Toyota vehicles.
- 10164330Jul 1, 2019TSB: REVISION NOTICE July 01, 2019 Rev2: ? Applicability has been updated to 2019 ? 2020 model year Toyota vehicles. ? The Techstream Preparation and Process Overview sections…
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2022 | 5 | 4% |
| 2021 | 8 | 5% |
| 2020 | 6 | 16% |
| 2019 | 4 | 9% |
| 2018 | 5 | 7% |
| 2017 | 15 | 10% |
| 2016 | 4 | 5% |
| 2015 | 16 | 7% |
| 2014 | 11 | 7% |
| 2013 | 7 | 4% |
| 2012 | 9 | 4% |
| 2011 | 23 | 4% |
| 2010 | 5 | 3% |
| 2009 | 10 | 5% |
| 2008 | 39 | 9% |
| 2007 | 42 | 12% |
| 2006 | 11 | 1% |
| 2005 | 22 | 2% |
| 2004 | 13 | 1% |
| 2002 | 3 | 2% |
| 2001 | 2 | 1% |
| 2000 | 2 | 1% |
| 1998 | 1 | 0% |
Other parts of the 2016 Toyota Sienna
27 complaintsOther or unknown
14 complaintsElectrical system
9 complaintsSeat belts
6 complaintsAir bags
5 complaintsWheels
5 complaintsExterior lighting
4 complaintsLatches, locks and linkages
4 complaintsSteering
4 complaintsTransmission and drivetrain
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsSeats
2 complaints
← All problems reported for the 2016 Toyota Sienna
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology