2021 Toyota Sienna MPG and Fuel Cost
Every 2021 Toyota Sienna is a hybrid, rated 35 to 36 mpg combined across 2 versions.
EPA fuel economy
2021 Toyota Sienna · 2 EPA-tested versionsBest EPA rating
36MPG combined
36 city 36 highway
$1,750 a year to fuel
2.5L 4-cyl hybrid · FWD · CVT
Best version saves $2,250 in fuel over 5 years vs the average new vehicle (EPA)
Fuel cost: 15,000 miles a year at EPA's $4.00 a gallon (regular gas).
At EPA's price assumptions, fuel costs $1,750 to $1,800 a year. Every 2021 Sienna is a hybrid; the 2020 also came with gas engines.
More complaints than most Sienna years
The 2021 drew 97 owner complaints in its first three years, against about 52 for a typical Sienna year: 1.8 times as many. It is not a year to avoid, which takes at least twice the typical count and at least 50 complaints.
Years to avoid: 2011; best years: 2018 and 2019. Based on owner complaints, not adjusted for sales.
Every Sienna year rankedThe 2021 Sienna's recalls and problems
Every 2021 Sienna version
EPA's ratings for each version it tested. Fuel cost is EPA's estimate for 15,000 miles a year at its current prices.
| Version | Combined | City / Hwy | Fuel / year |
|---|---|---|---|
2.5L 4-cyl hybrid · FWD · CVT Best
EPA listing: Sienna Hybrid 2WD |
36 mpg | 36 / 36 | $1,750 |
2.5L 4-cyl hybrid · AWD · CVT
EPA listing: Sienna Hybrid AWD |
35 mpg | 35 / 36 | $1,800 |
Fuel cost at your prices
EPA's annual cost uses 15,000 miles a year, 55% city driving and its current prices: $4.00 a gallon for regular gas. Change the numbers to match your driving.
| Version | Per year | 5 years |
|---|---|---|
2.5L 4-cyl hybrid · FWD · CVT | $1,667 | $8,333 |
2.5L 4-cyl hybrid · AWD · CVT | $1,714 | $8,571 |
At the default settings the results match EPA's annual cost before EPA rounds it to the nearest $50.
How long does a hybrid take to pay for itself? See the payback for every model sold both ways.
Toyota Sienna MPG by model year
The best-rated version in each model year; the highlighted year is this page. Gas: 19 to 22 mpg (2010 to 2020); highest in 2017. Hybrid: 36 mpg (2021 to 2026).
- Best gas version
- Best hybrid version
2021: gas not offered · hybrid 36 mpgTap or drag across the chart for other years.
Show as a table
| Model year | Best gas version | Best hybrid version |
|---|---|---|
| 2010 | 19 | – |
| 2011 | 21 | – |
| 2012 | 21 | – |
| 2013 | 21 | – |
| 2014 | 21 | – |
| 2015 | 21 | – |
| 2016 | 21 | – |
| 2017 | 22 | – |
| 2018 | 22 | – |
| 2019 | 22 | – |
| 2020 | 21 | – |
| 2021 | – | 36 |
| 2022 | – | 36 |
| 2023 | – | 36 |
| 2024 | – | 36 |
| 2025 | – | 36 |
| 2026 | – | 36 |
Every Sienna year's ratings in one table
How the 2021 Sienna compares
2021 minivans covered on this site, ranked by their best combined rating. Fuel cost is for each model's cheapest version to run, at EPA's prices.
| 2021 model | Best combined | Best gas | Fuel / year |
|---|---|---|---|
Toyota Sienna This page Best: hybrid |
36 mpg | – | $1,750 |
Best: gas |
22 mpg | 22 mpg | $2,850 |
Best: gas |
22 mpg | 22 mpg | $2,850 |
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2021 Sienna recalls and complaints
Questions
Does AWD lower the 2021 Toyota Sienna's gas mileage?
Yes. On versions that differ only in drive, AWD lowers the combined rating by 1 mpg: the 2.5L 4-cyl hybrid gets 36 mpg combined with front-wheel drive and 35 with AWD.
Does the 2021 Toyota Sienna need premium gas?
No. EPA lists every 2021 Toyota Sienna version on regular gasoline.
Sources and method
- US EPA and Department of Energy fuel economy data (fueleconomy.gov), file dated Nov 4, 2026.
- EPA fuel price assumptions: regular $4.00, midgrade $4.61, premium $5.01, diesel $6.13 a gallon; electricity $0.15 per kWh.
- Recall and complaint counts: NHTSA recall file dated Nov 12, 2026 and complaint file dated Nov 11, 2026.
Ratings are EPA estimates. Real-world mileage depends on how, where and in what weather you drive. How we build these pages. Spotted an error? Tell us.