The Verdict
Worst problem area
Transmission & Drivetrain
Transmission & Drivetrain leads by volume: 8 of 38 complaints (21%) mention it.
Complaints filed fell from 47 in 2019 to 38 in 2020.
At a glance
- NHTSA complaints
- 38
- Recall campaigns
- 2
- EPA fuel cost per year
- $2,950–$3,100
- Combined MPG
- 20–21
Complaints by model year
Where owners report problems
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Cost, Fuel Economy & Complaint History
| Category | 2018 | 2019 | 2020 | 2021 | 2022 | vs. 2020 Minivan - 2WD |
|---|---|---|---|---|---|---|
| Annual fuel cost ($) | 2,850–3,100 | 2,850–3,100 | 2,950–3,100 | 1,750–1,800 | 1,750–1,800 | |
| Combined MPG | 20–22 | 20–22 | 20–21 | 35–36 | 35–36 | |
| City / Highway MPG | 18–19 / 24–27 | 18–19 / 24–27 | 18–19 / 24–26 | 35–36 / 36 | 35–36 / 36 | |
| CO₂ tailpipe (g/mi) | 410–441 | 408–441 | 417–441 | 246–253 | 246–253 | |
| Complaints filed | 72 | 47 | 38 | 210 | 141 | |
| Recalls issued | 7 | 7 | 2 | 4 | 5 | |
| Crash-involved complaints | 5 | 2 | 0 | 14 | 5 | |
| Fire-involved complaints | 0 | 0 | 1 | 4 | 0 | |
| Injuries reported | 6 | 4 | 0 | 12 | 3 | |
| Deaths reported | 0 | 0 | 0 | 0 | 0 | |
| Configurations compared | 1 | 1 | 1 | 1 | 1 |
Not compared: this database has no vehicle sales or registration figures, so a raw count mostly reflects how many were sold, not how safe the vehicle is.
Common questions
How many recalls does the 2020 Toyota Sienna have?
2 NHTSA recall campaigns as of Nov 7, 2026. Check your VIN with NHTSA to see whether one applies to your car.
What is the most common complaint about the 2020 Toyota Sienna?
Transmission & Drivetrain: 8 of 38 NHTSA complaints (21%) mention it.
What gas mileage does the 2020 Toyota Sienna get?
EPA rates it 20–21 MPG combined.
How much does it cost to fuel a 2020 Toyota Sienna?
EPA estimates $2,950–$3,100 a year in fuel costs, using EPA's assumptions.
Similar Vehicles
EPA-Rated Configurations (2)
| Configuration | Transmission | Cylinders | Displacement | Drivetrain | Fuel Type | Vehicle Class | City | Highway | Combined | Annual Fuel Cost | CO₂ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Configuration 1 | Automatic (S8) | 6 | 3.5L | Front-Wheel Drive | Regular | Minivan - 2WD | 19 mpg (high) | 26 mpg (high) | 21 mpg (high) | $2,950 (low) | 417 g/mi (low) |
| Configuration 2 | Automatic (S8) | 6 | 3.5L | All-Wheel Drive | Regular | Minivan - 4WD | 18 mpg (low) | 24 mpg (low) | 20 mpg (low) | $3,100 (high) | 441 g/mi (high) |
Complaints by Category
| Category | Complaints | Crash-Involved | Fire-Involved | Injuries | Deaths |
|---|---|---|---|---|---|
| Engine | 6 | 0 | 1 | 0 | 0 |
| Transmission & Drivetrain | 8 | 0 | 0 | 0 | 0 |
| Fuel System | 8 | 0 | 1 | 0 | 0 |
| Electrical | 7 | 0 | 0 | 0 | 0 |
| Brakes | 3 | 0 | 0 | 0 | 0 |
| Steering | 3 | 0 | 0 | 0 | 0 |
| Suspension, Wheels & Tires | 1 | 0 | 0 | 0 | 0 |
| Airbags & Restraints | 1 | 0 | 0 | 0 | 0 |
| Driver Assistance & Speed Control | 0 | 0 | 0 | 0 | 0 |
| Body, Seats & Latches | 5 | 0 | 0 | 0 | 0 |
| Visibility & Lighting | 1 | 0 | 0 | 0 | 0 |
| Other | 6 | 0 | 1 | 0 | 0 |
A complaint that names more than one category is counted in each, so the rows can add up to more than the total number of complaints.
Recalls (2)
FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
- Defect
- 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.
- Consequence
- 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.
STEERING
- Defect
- 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.
- Consequence
- 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.