YearToAvoid

2020 Toyota Sienna Reliability Data: Problems & Recalls

Best The 2020 Toyota Sienna has a complaint index of 0 and ranks 16th out of 16 (best) among model years, earning a Best verdict. It has 38 complaints and 2 recalls, both far lower than most other Sienna years.

Based on NHTSA complaints per model-year, not a reliability rating. Methodology

YearToAvoid Scorecard

Complaint Index
0/100
#16 of 16 Sienna years
Verdict
Best
vs. other years of this model
Complaints
38
unique NHTSA reports
Recalls
2
distinct NHTSA campaigns
Crashes
0
reported in complaints
Fires
1
Injuries
0
Top issue
Fuel System
Best nearby year
2019
rated Best
NHTSA overall rating
5 / 5 ★
EPA combined MPG
20.5
18.5 city / 25 hwy
Injuries / deaths
0 / 0

Top 2020 Toyota Sienna problems

Share of this year’s NHTSA 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%)

A complaint can list more than one component, so shares add up to more than 100%. Shares are % of complaints.

What owners report

  • Sudden loss of power with warning lights on the dash, in one case after a fuel pump recall repair had already been performed.
  • Engine light, loss of acceleration, and steering/traction warning lights appearing together while driving on the highway at low mileage.
  • Intermittent jerking and lunging forward under acceleration linked to the fuel pump recall, with replacement parts reported unavailable.
  • A hose in the axle coming loose and leaking fluid, discovered shortly after purchase.
  • Steering that became difficult to turn at highway speed with no warning light illuminated.
  • Floor mats jamming the second-row seat rails, blocking a child from exiting through the third row.
2020 Toyota Sienna complaints: complaints filed per month2Oct 2019Jan 2021Jun 2021May 2022Sep 2023Aug 2024Oct 2025Aug 2026
38 complaints filed with NHTSA from Oct 2019 to Aug 2026; peak Dec 2020 (2).

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)0255075100’05’06’07’08’09’10’11’12’13’14’15’16’17’18’19’20
Complaint Index: 0 = fewest issues, 100 = most, relative to other years of this model. Avoid Caution Good Best
YearVerdictIndexComplaintsRecallsMPG
2018Best1372721
2019Best745721
2020Best038220.5

All Toyota Sienna years: best and worst →

Frequently asked questions

Is the 2020 Toyota Sienna reliable?
Among Sienna model years, 2020 has the lowest complaint index at 0 and carries a Best verdict, with only 38 complaints logged in NHTSA data.
What problems does the 2020 Toyota Sienna have?
NHTSA complaints for 2020 concentrate on the Fuel System and Transmission & Powertrain, each with 8 complaints, followed by Electrical System with 7 and Engine with 6.
Does the 2020 Toyota Sienna have a fuel pump recall?
Yes. Recall 20V682000 covers the fuel system and involves replacing the fuel pump assembly; owners reported delays getting the replacement part.
Is the 2020 Sienna better than other Sienna years?
Yes, based on NHTSA complaints and recalls it ranks 16th of 16 model years, meaning it has fewer reported problems than every other year in the data set.
How many recalls does the 2020 Toyota Sienna have?
NHTSA lists 2 recalls for the 2020 Sienna: one for the fuel system and one for a steering shaft extension issue on modified vehicles.

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.