YearToAvoid

2020 Toyota Sienna Problems, Recalls & Reliability

Verdict

Best

Complaint Index

0/100

#11 most-complained of 11 Sienna years

The 2020 Toyota Sienna ranks 11th of 11 model years with the lowest complaint index (0) and a "Best" verdict. NHTSA lists 38 complaints, 2 recalls, and 1 fire report, with Fuel System and Transmission & Powertrain tied as the top problem areas at 21% each.

Complaints
38
Recalls
2
Crashes / fires
0 / 1
Injuries / deaths
0 / 0
NHTSA overall rating
5 / 5 ★
EPA combined MPG
20.5
18.5 city / 25 hwy

Top 2020 Toyota Sienna problems

NHTSA owner complaints by component group. Groups with 15+ complaints have their own page.

  1. Fuel System8 (21%)
  2. Transmission & Powertrain8 (21%)
  3. Electrical System7 (18%)
  4. Engine6 (16%)
  5. Other6 (16%)
  6. Structure & Body5 (13%)
  7. Brakes3 (8%)
  8. Steering3 (8%)
  9. Airbags1 (3%)
  10. Suspension, Wheels & Tires1 (3%)

What owners report

  • Owners describe sudden loss of power and dashboard warning lights, in one case after a fuel pump recall repair had been performed.
  • Some drivers report the engine light coming on with a loss of acceleration and no response from the gas pedal, sometimes with traction and steering warning lights also lit.
  • Owners report intermittent jerking or lunging forward while the accelerator pedal is depressed, tied to the fuel system recall.
  • Several complaints describe difficulty getting the recalled fuel pump replaced due to unavailable parts, with vehicles left undriven for months.
  • One owner reported a loose or leaking hose in the axle discovered shortly after purchase, described by a dealer technician as a mechanical problem.
  • A driver reported the steering wheel becoming difficult to turn at 55 mph with no warning light illuminated.
2020 Toyota Sienna complaints: complaints filed per month4Oct 2019Jan 2021Jun 2021May 2022Sep 2023Aug 2024Oct 2025Aug 2026
49 complaints filed with NHTSA from Oct 2019 to Aug 2026; peak Sep 2022 (4).

2020 Toyota Sienna recalls

2 NHTSA recall campaigns list this model year.

  1. NHTSA 20V682000Nov 4, 2020Fuel System1,525,742 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.

  2. NHTSA 19V532000Jul 16, 2019Steering595 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.

2020 Toyota Sienna fuel economy and fuel cost

City
18.5 MPG
Highway
25 MPG
Combined
20.5 MPG
Annual fuel cost (EPA)
$3,175
15,000 mi/yr
Fuel
Regular
Current regular gas
$4.32/gal
national avg.

EPA figures; median across configurations of this model year. Estimate your own cost with the fuel cost calculator.

2020 compared with other Sienna years

Complaint Index by model year (0 = fewest issues, 100 = most)025507510020102011201220132014201520162017201820192020
Complaint Index: 0 = fewest issues, 100 = most, relative to other years of this model. Avoid Caution Good Best
YearVerdictIndexComplaintsRecallsMPG
2018Good3072721
2019Best1045721
2020Best038220.5

All Toyota Sienna years: best and worst →

Frequently asked questions

Is the 2020 Toyota Sienna reliable?
Based on NHTSA owner complaints and recalls, the 2020 Sienna has the lowest complaint index (0) among the 11 model years with data and carries a "Best" verdict relative to other Sienna years.
What problems does the 2020 Toyota Sienna have?
NHTSA lists 38 complaints, split mainly between Fuel System and Transmission & Powertrain issues (8 complaints each, 21% share), followed by Electrical System (7 complaints) and Engine (6 complaints).
Does the 2020 Toyota Sienna have a recall?
Yes. NHTSA lists 2 recalls: a fuel pump replacement (campaign 20V682000) and a steering shaft extension fix on modified vans (campaign 19V532000), neither marked do-not-drive.
How does the 2020 Sienna compare to other Sienna years?
The 2020 Sienna has a complaint index of 0, the lowest of any year in the data, well below years like 2011 (index 100, Avoid) and 2015 (index 90, Avoid).
What is the top problem area for the 2020 Sienna?
Fuel System complaints lead at 21% share, tied with Transmission & Powertrain, and one fuel-related complaint involved a reported fire.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.