2004 Toyota Sienna structure problems
962 owner complaints filed with NHTSA name the structure on the 2004 Toyota Sienna — 47% of all complaints for this model year.
What owners report
“The contact owns a 2004 Toyota Sienna. The contact stated that while the liftgate door was opened, the door had erroneously closed and failed to remain opened. The vehicle was taken to the local dealer who diagnosed that the rear hatch door struts were faulty and needed to be replaced. The vehicle…”
filed Aug 8, 2025
“The contact owns a 2004 Toyota Sienna. The contact stated while the vehicle was parked, the tailgate inadvertently opened, then closed independently. There was no warning light illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed that the tailgate hydraulic struts…”
filed Apr 6, 2023
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- StructureCampaign 10V160000 · Apr 20, 2010
- TOYOTA IS CONDUCTING A SAFETY IMPROVEMENT CAMPAIGN INVOLVING 196,222 MY 2004-2006 TOYOTA…Campaign 08V244000 · Jun 3, 2008
Related service bulletins
The 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 compounds. If these contaminants settle and…
T-SB-0039-24 Rev2 · Service Bulletin/Repair Instructions · issued Dec 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 is to shield the disc brake rotor from…
T-SB-0038-24 Rev2 · Service Bulletin/Repair Instructions · issued Dec 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 exposed vehicle, especially the horizontal…
T-SB-0035-24 Rev2 · Service Bulletin/Repair Instructions · issued Dec 6, 2024Toyota vehicles are currently protected with RapgardTM protective film designed to protect the horizontal painted surfaces. This material protects from acid rain, environmental fallout, and rail contamination. Follow…
T-SB-0061-23 Rev2 · Service Bulletin/Repair Instructions · issued Dec 5, 2024Vehicles may occasionally be subjected to contamination by airborne iron particles shed from railroad tracks, train wheels, exposure to heavy machinery facilities, grinding, welding, etc. This type of contamination can…
T-SB-0062-23 Rev2 · Service Bulletin/Repair Instructions · issued Dec 3, 2024
Structure problems in other Sienna years
| Year | Reports | Share |
|---|---|---|
| 2022 Sienna | 1 | 1% |
| 2021 Sienna | 6 | 4% |
| 2020 Sienna | 3 | 8% |
| 2019 Sienna | 6 | 13% |
| 2018 Sienna | 5 | 7% |
| 2017 Sienna | 13 | 9% |
| 2016 Sienna | 26 | 35% |
| 2015 Sienna | 60 | 26% |
| 2014 Sienna | 44 | 27% |
| 2013 Sienna | 44 | 24% |
| 2012 Sienna | 72 | 29% |
| 2011 Sienna | 154 | 25% |
Other reported problem areas on the 2004 Toyota Sienna
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.