2021 Toyota Sienna Body and structure Problems
- Complaints
- 6about this part
- Share
- 4%of 165 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 6 complaints about the body and structure of the 2021 Toyota Sienna, 4% of the 165 complaints for this model year.
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.
“I went on a trip to Missouri to visit my son and family. When going through St. Louis on 5/18/2022 I ran through a thunderstorm with a lot of rain. After I stopped, I noticed a puddle of water between the front seats. I could not find out where it came from. Later that same day I went through another storm. Again I found a puddle of water between the seats. This is a vehicle that was modified by VMI into a handicapped accessible van. Water coming in is concerning due to all the electrical components that could be shorted out. …”
NHTSA complaint #11470424, filed 2022-06“Simalar issue to Toyota T-SB-0121-20 December 14, 2020 Sloshing or Splashing Noise Caused by Water Inside Doors The lower door seals are to tightly fitted and obstruct the door drainage holes. Debris builds up inside the drainage hole. In hard rain or car wash the door fills full of water causing potential for corrosion and damage to electrical components inside door.”
NHTSA complaint #11521823, filed 2023-05“While driving during snowy weather suddenly smoke began to billow from steering column area and vehicle slowed down, then stopped, while simultaneously several malfunction indicators lit, I tried to restart the vehicle to pull to a berm, it was unable to restart or even shift into neutral, the vehicle lost all power and had to be towed. This alone could have caused an injury or accident. …”
NHTSA complaint #11455682, filed 2022-03“Both side power doors become inoperable if they sit open for more than a few moments. They do not close by switch, key fob, or by pushing. Starting vehicle does not activate or reset. Doors must physically be forced closed. It takes considerable force to close the door. Two complaints to dealer were ignored or Toyota Dealer claims this is an intentional design. But has no rational reason for the defect being a design feature. This is a danger to people unable to physically close the door and presents a security flaw for users.”
NHTSA complaint #11444770, filed 2021-12Related service bulletins
- 11012744Dec 6, 2024The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic…
- 11012743Dec 6, 2024To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover. The purpose of the wheel film…
- 11012742Dec 6, 2024Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere. If these acidic compounds settle on an…
- 11012735Dec 5, 2024Toyota vehicles are currently protected with RapgardTM protective film designed to protect the horizontal painted surfaces. This material protects from acid rain, environmental…
- 11012727Dec 3, 2024Vehicles may occasionally be subjected to contamination by airborne iron particles shed from railroad tracks, train wheels, exposure to heavy machinery facilities, grinding…
- 11007455Jul 29, 2024Some 2005 – 2024 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate…
- 11006161Jul 29, 2024Some 2005 – 2024 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate…
- 11007445Jul 12, 2024The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic…
- 11007444Jul 12, 2024To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover. The purpose of the wheel film…
- 11007443Jul 12, 2024Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere. If these acidic compounds settle on an…
Body and structure: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2022 | 1 | 1% |
| 2021 | 6 | 4% |
| 2020 | 4 | 11% |
| 2019 | 6 | 13% |
| 2018 | 5 | 7% |
| 2017 | 14 | 9% |
| 2016 | 27 | 36% |
| 2015 | 61 | 26% |
| 2014 | 44 | 27% |
| 2013 | 44 | 24% |
| 2012 | 72 | 29% |
| 2011 | 154 | 25% |
| 2010 | 57 | 33% |
| 2009 | 97 | 47% |
| 2008 | 117 | 27% |
| 2007 | 102 | 28% |
| 2006 | 261 | 26% |
| 2005 | 499 | 44% |
| 2004 | 962 | 47% |
| 2003 | 18 | 17% |
| 2002 | 42 | 23% |
| 2001 | 35 | 19% |
| 2000 | 52 | 14% |
| 1999 | 36 | 17% |
| 1998 | 35 | 12% |
Other parts of the 2021 Toyota Sienna
80 complaintsOther or unknown
29 complaintsSeats
17 complaintsAir bags
16 complaintsElectrical system
13 complaintsVehicle speed control
10 complaintsEngine
8 complaintsSeat belts
8 complaintsTransmission and drivetrain
8 complaintsVisibility (wipers, defrost, mirrors)
6 complaintsForward collision avoidance
5 complaintsFuel system
5 complaints
← All problems reported for the 2021 Toyota Sienna
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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