2001 Toyota Sienna problems & reliability
180 owner complaints filed with NHTSA for the 2001 Toyota Sienna, alongside 2 safety recall campaigns. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
9 complaints report injuries (12 injured, 2 deaths reported).
Federal crash records (FARS 2020–2023): 2001 Toyota Sienna vehicles were involved in 18 fatal crashes with 12 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Structure → | 35 | 19% |
| Latches/locks/linkages → | 34 | 19% |
| Engine and Engine Cooling → | 24 | 13% |
| Electrical System → | 20 | 11% |
| Service Brakes, Hydraulic → | 15 | 8% |
| Tires → | 14 | 8% |
| Seat Belts | 9 | 5% |
| Vehicle Speed Control | 9 | 5% |
| Visibility | 9 | 5% |
| Fuel System, Gasoline | 8 | 4% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Mileage when problems occurred
Half of the failures with a reported odometer reading occurred by 69,745 miles (middle 50% between 35,750 and 110,943 miles), based on 120 complaints that included mileage.
Complaints by incident year
What owners report
“A known issue with these 3.0 l v6 engine. Heavy smoke from the exhaust pipe. Visible oil sludge under the oil refill cap.”
Engine · filed Mar 13, 2021
“The driver's side rear sliding door has several times now refused to latch, and when in emergency situation I have locked it and forced it to shut then it will not unlock and it has to be taken apart to be opened and the whole latch and lock mechanism reworked by the mechanic, and in the meantime the door is unable to…”
Structure · filed May 30, 2018
“My 9 year old son and I were on our way home from work last night and I heard something snap on my 2001 toyota sienna. I then heard something dragging so I immediately pulled over to check and realized the fuel tank was dragging and the back straps holding the gas tank up had broken loose causing the back section of…”
Fuel/propulsion System · filed Jun 20, 2017
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Technical service bulletins
124 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2001 Toyota Sienna. The 10 most recent:
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, 2024
To 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, 2024
Acid 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, 2024
Toyota 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, 2024
Vehicles 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
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 Rev1 · Service Bulletin/Repair Instructions · issued Jul 12, 2024
To 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 Rev1 · Service Bulletin/Repair Instructions · issued Jul 12, 2024
Acid 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 Rev1 · Service Bulletin/Repair Instructions · issued Jul 12, 2024
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 Rev1 · Service Bulletin/Repair Instructions · issued Jul 12, 2024
To 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 Rev1 · Service Bulletin/Repair Instructions · issued Jul 12, 2024
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 2001 Toyota Sienna has 2 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2001 Toyota Sienna?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Owners most often reported problems around 69,745 miles — budget accordingly if the car is approaching that mileage.