2020 Toyota Sienna problems, complaints & recalls

Updated Oct 10, 2026 from NHTSA data · How we count

Owners have filed 37 complaints with NHTSA about the 2020 Toyota Sienna, most often about transmission & drivetrain. There are 2 recalls for this model year.

Complaints: 37
Recalls: 2
Crashes: 0
Fires: 1
Injuries: 0
Median mileage: 14,571 mi

Key facts

Fuel, Hybrid & EV Propulsion is the most-reported problem area, named in 8 of 37 complaints (22%).
Transmission & Drivetrain (8) and electrical system (6) follow.
Half of the complaints that list mileage happened before 14,571 mi.
Owners reported 0 crashes, 1 fire and 0 injuries.
The 2020 Toyota Sienna has 2 recalls on file.
It ranks 14th of 16 Toyota Sienna model years by our severity-weighted complaint score (1st = worst).
That is 5% fewer complaints than the 2019 model year (39).

A complaint can mention more than one problem area, so categories add up to more than the total.

Most-reported components

Component (as filed with NHTSA)	Complaints
Power train	8
Fuel/propulsion system	6
Engine	6
Unknown or other	6
Electrical system	5
Structure:body	4
Steering	3
Fuel system, gasoline	2

When problems happen (mileage)

Mileage at the time of the problem, for 2020 Toyota Sienna complaints that list mileage.

2020 Toyota Sienna recalls (2)

Recall 20V682000Nov 4, 20201,525,742 vehicles
FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2018-2019 4Runner, 2019-2020 Avalon, 2019 Corolla Hatchback, 2017-2019 Highlander, 2018-2020 Camry, 2020 Corolla, 2018-2019 Land Cruiser, 2017-2020 Tacoma, 2019-2020 RAV4, 2019-2020 Sequoia, 2017-2020 Sienna, 2019-2020 Tundra, 2018-2020 Lexus ES350, 2017 Lexus GS200t, 2017-2019 Lexus GS350, 2019 Lexus GS300, 2018-2020 Lexus LC500h, 2019-2020 Lexus LS500, 2018-2019 Lexus GX460, 2017 Lexus IS200t, 2019 Lexus IS300, 2019 Lexus IS350, 2018-2020 Lexus LC500, 2018 Lexus LS500, 2019 Lexus LS500h, 2018-2019 Lexus LX570, 2017 Lexus RC200t, 2019 Lexus RC300, RC350, 2017 and 2019-2020 Lexus RX350, 2018-2020 RX350L, 2019 Lexus UX200, 2018-2019 Lexus NX300 vehicles. The low-pressure fuel pump inside the fuel tank may fail.
Risk: If the fuel pump fails, the engine can stall while driving, increasing the risk of a crash.
Remedy: Toyota will notify owners, and dealers will replace the fuel pump assembly with an improved one, free of charge. Owners of specific models were notified that remedy parts were available starting January 21, 2021. Owners of other models will be notified as remedy parts become available. Remedy parts should be available for all affected vehicles by late March 2021. Owners may contact Toyota customer service at 1-888-270-9371 or Lexus customer service at 1-800-255-3987. Note: This recall is an expansion of recall 20V-012. Toyota's number for this recall is 20TA02. Lexus' number for this recall is 20LA01.
Recall 19V532000Jul 16, 2019595 vehicles
STEERING
Braun Corporation (Braun) is recalling certain modified 2017-2020 Toyota Sienna vehicles. The steering shaft extensions may have been improperly manufactured, possibly causing the extensions to fracture.
Risk: If the steering shaft extension completely fractures, it can cause a loss of steering, increasing the risk of a crash.
Remedy: Braun has notified owners, and dealers will replace the steering shaft extensions, free of charge. The recall began July 25, 2019. Owners may contact Braun customer service at 1-800-488-0359.

Recent 2020 Toyota Sienna complaints

Excerpts of the newest owner complaints, lightly cleaned of personal details. Complaints are unverified owner reports.

Filed Aug 31, 2026CTBody & Structure
Power sliding door on driver side cable snapped. After closing door and trying to use the door without power unable to open or close the door at all. Passengers forced to use alternate door for exit of vehicle.
NHTSA complaint #11760949 · source
Filed Aug 25, 2026288,044 miVAElectrical System
Odometer Fraud. The contact purchased a 2020 Toyota Sienna. The contact discovered that there was a mileage discrepancy after the purchase. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 88,044. It was later discovered upon checking with the local DMV that the mileage was 288,044.
NHTSA complaint #11759472 · source
Filed Jun 21, 2026PAAirbagsOther / Unknown
We had our van parked on a driveway with a front facing slope, we had hard rains went we where going away there was water coming out of the seat belt on the passenger side and the panel above the window was stained down to the window support where the air bag is. I've been reading reports as far back as 2008 we have a 2020, went taken to the dealer they want 1000 to 2700 to remove the head liner and try to fine the problem, which what was reported didn't help. The dealer…
NHTSA complaint #11745526 · source
Filed May 8, 2026INTransmission & Drivetrain
My Toyota sienna is a 2020, has 83,000 miles and has recently been squealing when I accelerate. I took the van to a local body shop and they said it seems to be my transmission. I called Toyota immediately and they knew that the transmissions were faulty and that they would try to work with Toyota to get it fixed. There is no way I can pay 9k for a new transmissions because they put in faulty ones.
NHTSA complaint #11736554 · source
Filed Apr 26, 2026FLEngineFuel, Hybrid & EV PropulsionTransmission & Drivetrain
The vehicle is a 2020 Toyota Sienna. While driving, the engine suddenly shut off without warning, creating a dangerous situation and loss of power. This occurred while transporting children, increasing the safety risk. A mechanic inspected the vehicle and diagnosed a failure of the low-pressure fuel pump. The problem appears intermittently — sometimes the vehicle runs normally, and other times it stalls or loses power. The check engine light has turned on and off. This issue…
NHTSA complaint #11733827 · source
Filed Apr 13, 2026INOther / Unknown
cable broke on sliding door and unable to open or access cabin on that side. turned off power to door and still unable to force door open making it difficult to unlatch car seat on that side. safety hazard in accident or rollover
NHTSA complaint #11730749 · source
Filed Oct 14, 2025PABody & Structure
The power sliding door assembly failed, and the driver side rear sliding door was bound shut, and could not be opened. Disabling the power door system did not resolve the issue. The cable for the power door mechanism was hanging below the rear vent windows; but for some reason the door still would not open. I ultimately with a lot of gentle force was able to get the door open enough to see the retract side of the cable was bound up, and was able to cut it with wire cutters,…
NHTSA complaint #11693401 · source
Filed Aug 17, 2025CATransmission & Drivetrain
"I've owned the vehicle for five years, and recently I started hearing a whining noise coming from the transmission. After doing some research, I discovered that I'm not alone in experiencing this issue. The dealer told me that the transmission itself is the problem and recommended replacing the entire transmission. However, a second opinion suggested that this kind of noise isn't normal. I'm worried about safety because, although it's just a whine right now, I fear it could…
NHTSA complaint #11681131 · source

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Other 2020 Toyota models

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data, as of Oct 10, 2026. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology