2021 Toyota Sienna Hybrid Body and structure Problems
- Complaints
- 5about this part
- Share
- 11%of 45 total for the year
- Median mileage
- 22,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 5 complaints about the body and structure of the 2021 Toyota Sienna Hybrid, 11% of the 45 complaints for this model year. Where a mileage was given, the median is 22,500 miles.
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.
“The rear power liftgate hinges on my 2021 Toyota Sienna failed structurally under normal, everyday operation. The power liftgate motor and struts appear to exert uneven or excessive pressure on the rear hatch assembly, causing the metal hinges to crack. Before the failure, we noticed a loud popping/grinding sound when opening the hatch, which quickly progressed to the liftgate binding and misaligning. …”
NHTSA complaint #11763294, filed 2026-09“My liftgate has been making loud noises upon closing. The dealership checked it and diagnosed that the trunk door is mis-aligned, leaving a gap so that the door WOULD NOT SECURELY CLOSE. I was referred to the body shop to have the shocks and hinges changed. Further discussions mentioned this was a common problem with the Toyota RAV-4 where the hydraulics fail causing a bad alignment therefore affecting the hinges. …”
NHTSA complaint #11761738, filed 2026-09“The contact owns a 2021 Toyota Sienna Hybrid. The contact stated that while driving at an undisclosed speed, the contact heard an abnormal splashing sound inside the vehicle. The contact stated that while the vehicle was parked, there was water coming from underneath the doors. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The contact related the failure to Technical Service Bulletin: 0121-20 (Sloshing or Splashing Noise Caused by Water Inside Doors); however, the vehicle was not covered under the TSB. …”
NHTSA complaint #11592878, filed 2024-06, 22,500 miles“The contact owns a 2021 Toyota Sienna Hybrid. The contact stated that after pressing the rear lift gate button, the rear liftgate door failed to open, trapping the dog inside the vehicle. The contact stated that the rear liftgate door was later manually forced open by two good Samaritans and the dog was retrieved. The vehicle was later taken to the local dealer who diagnosed that the failure was caused by a faulty passenger’s side liftgate strut bolt. The liftgate strut and bolt were replaced and the vehicle was repaired. The manufacturer was notified of the failure. …”
NHTSA complaint #11582122, filed 2024-04, 67,000 milesRelated service bulletins
- 11027555Dec 2, 2025Some customers may experience a condition in which the 2021-2025 Sienna HV 2nd row FRAME SUB-ASSY, No.1 does not function even when the stow lever is pulled. Because the cable…
- 11026304Nov 6, 2025Some 2021 – 2025 model year Sienna Hybrid vehicles may exhibit a sloshing or splashing noise from inside one or more door panels when driving, opening and/or closing a door…
- 11014177Jan 6, 2025Some 2021 – 2024 model year Sienna Hybrid vehicles may exhibit a condition in which the front passenger carpet is untucked and torn at the center console, as shown in Figure 1…
- 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…
- 11010059Sep 3, 2024Some customers have expressed concern that the wireless functions of their Key Fob stop working. Key Fob LEDs will not turn ON, but engine starts with key held up against start…
- 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…
Body and structure: other model years
Other parts of the 2021 Toyota Sienna Hybrid
13 complaintsBrakes
9 complaintsSeats
5 complaintsVisibility (wipers, defrost, mirrors)
5 complaintsElectrical system
4 complaintsEngine
3 complaintsOther or unknown
3 complaintsExterior lighting
2 complaintsSuspension
2 complaintsTransmission and drivetrain
2 complaintsBack-over prevention (rear camera)
1 complaintsForward collision avoidance
1 complaints
← All problems reported for the 2021 Toyota Sienna Hybrid
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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