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2020 Toyota Sienna: raw data

Every record we hold for this vehicle, as plain tables, with nothing added. The consumer page shows the same records with the maintenance schedule, price ranges and nearby shops around them.

vehicle2020 / toyota / sienna
known issues6 clusters (reviewed 2026-08-30)
complaints38 on file (2019-10-15 → 2026-08-31)
recalls2
investigations0
fars21 occupant deaths, crash years 2010-2024 (legacy-code)
indexedyes
licenseCC BY 4.0 (derived)

Known Issues clusters all years →

Transmission whines, shudders, or failsPOWER TRAIN5 complaints2021-07 → 2026-05sienna-2020-transmission-whine-shudder
  • 11680231 A catastrophic failed automatic transmission; UA80E of Toyota Sienna 2020 at 85,000 miles. It occurred while I've been driving downhill. No warning lights, not overheating, no diagnostic ODB code, no other indications prior to the failure. Failure created a substantial safety
  • 11531570 My car was not shifting gears, and it would go into brief periods of erratic acceleration. I took it to the dealer service dept. The transmission went bad. It had metal pieces broken off inside it. The car is 3 years old and only has approximately 70,900 miles on it. It was
  • 11736554 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
Power sliding door jams or will not openSTRUCTURE3 complaints2024-08 → 2026-04sienna-2020-power-sliding-door-jams
  • 11730749 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
  • 11693401 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
  • 11607833 Hinge rust on fuel door causing it to break and not let rear passenger door auto open (because switch won't make up) hinge is very weakly built
Fuel pump failure causes stall or loss of powerFUEL SYSTEM, GASOLINE10 complaints2020-12 → 2026-04sienna-2020-fuel-pump-stall
  • 11733827 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
  • 11420552 ON jUNE 3, 2021 I experienced a drastic loss in power and all warning light illuminated on the dash , was able to get of the highway to a safe area and vehicle ceased to function . This happened after the fuel pump recall was performed at Ed Morse Toyota in Delray Beach around
  • 11403299 THIS VEHICLE IS OWNED BY EMORY UNIVERSITY. EMORY UNIVERSITY WAS NOTIFIED LAST YEAR (OCTOBER) THAT THE LOW PRESSURE FUEL PUMP MAY STOP OPERATING. TO DATE, THERE HAS BEEN NO REPAIR OFFERED BY TOYOTA. 2020 TOYOTA SIENNA AS SUCH EMORY UNIVERSITY WILL NOT LET US OPERATE IT UNTIL IT
Water leaks into cabin near seat belt or sunroofAIR BAGS, UNKNOWN OR OTHER2 complaints2024-07 → 2026-06sienna-2020-cabin-water-leak
  • 11745526 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
  • 11602345 Sun roof leaking or clogging causing water to get inside vehicle. Causing extensive damages and malfunctions
Electrical control unit causes random system glitchesELECTRICAL SYSTEM3 complaints2024-04 → 2024-11sienna-2020-electrical-glitches
  • 11626786 The contact owns a 2020 Toyota Sienna. The contact stated that while his wife was driving at an undisclosed speed, the pre collision, lane assist, and air bag warning lights illuminated on the instrument panel. The vehicle was taken to a dealer and a fuse in the ECU (Electronic
  • 11581325 Spontaneous and random: Blinkers come on, radio volume goes up or down when turning the other way, CarPlay USB shuts off and on, hiccups when accelerating (when ECO kicks on/in)…everything points to an electrical/computer issue. Purchased used from a dealership and noticed these
  • 11581181 Speakers make an ear piercing loud noise that lasts about a second. If this sound were to occur during travel, could cause distraction leading to harm, or with young kids in the car, possibly damage their ears. This problem has been random and not experienced by a dealership. No
Power steering assist is lost while drivingSTEERING2 complaints2021-04 → 2023-09sienna-2020-power-steering-loss
  • 11547302 The contact owns a 2020 Toyota Sienna. The contact stated while driving at various speeds, the vehicle lost power steering assist. Additionally, the "Check Vehicle Stability Control System", "Pre-Collision System Malfunction", and "Lane Departure Alert" messages were displayed
  • 11406711 TL* THE CONTACT OWNS A 2020 TOYOTA SIENNA. THE CONTACT STATED WHILE DRIVING 55 MPH, THE STEERING WHEEL WAS DIFFICULT TO STEER. THE CONTACT STATED NO WARNING LIGHT WAS ILLUMINATED. THE VEHICLE WAS NOT TAKEN TO A LOCAL DEALER OR AN INDEPENDENT MECHANIC TO BE DIAGNOSED OR REPAIRED

NHTSA complaints (summary) all years →

countearliest_datelatest_datecrash_flaggedfire_flaggedtop_components
382019-10-152026-08-3101POWER TRAIN:8; ELECTRICAL SYSTEM:7; UNKNOWN OR OTHER:6; ENGINE:6; FUEL/PROPULSION SYSTEM:6

Recalls all years →

campaign_numberreport_received_datecomponentsummaryconsequenceremedy
20V68200004/11/2020FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMPToyota 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.If the fuel pump fails, the engine can stall while driving, increasing the risk of a crash.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.
19V53200016/07/2019STEERINGBraun 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.If the steering shaft extension completely fractures, it can cause a loss of steering, increasing the risk of a crash.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.

Investigations all years →

none listed

FARS occupant deaths all years →

crash_yearsoccupant_deathsmatch_typevpic_recovered
2010-202421legacy-code0

FARS counts every occupant death in a fatal crash, whatever the cause — it does not mean the vehicle was at fault or defective. Counts are not adjusted for how many of each vehicle are on the road.

Cite this

Derived data is CC BY 4.0. Link back to the page you used. Text and BibTeX below.

Wrench.Pro (2026). 2020 Toyota Sienna vehicle data [dataset]. https://www.wrench.pro/data/vehicles/2020/toyota/sienna
@misc{wrenchpro_2020_toyota_sienna_2026,
  author = {Wrench.Pro},
  title = {Wrench.Pro vehicle data: 2020 Toyota Sienna},
  year = {2026},
  howpublished = {\url{https://www.wrench.pro/data/vehicles/2020/toyota/sienna}},
  note = {Derived from NHTSA public records. CC BY 4.0.}
}

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