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Your vehicleHome›Toyota›Sienna› 2021
Toyota · Minivan

2021 Toyota Sienna

Hybrid
Minivan - 2WD
2 EPA-rated configurations
Data refreshed 2026-10-26
C
Safety Signal
76 / 100 from the NHTSA recall record
RecallsNHTSA campaigns 4
Complaints1 fire · 1 injured reported 45
Crash ratingNHTSA overall 5★
Fuel economybest combined, EPA 36 mpg
20262025202420232022202120202019201820172016

The 2021 Toyota Sienna is sold in the U.S. as a hybrid minivan with 2 EPA-rated configurations. The most efficient version, the Sienna Hybrid 2WD, is EPA-rated at 36 mpg combined. NHTSA lists 4 recall campaigns for this model year, which gives it a Safety Signal grade of C. Owners have filed 45 complaints, most often about the air bags. NHTSA crash-tested it at 5 stars overall.

Toyota Sienna — photograph via Wikimedia Commons
Toyota Sienna · Photo: OWS Photography · CC BY 4.0 · Wikimedia Commons

Specs & fuel economy

Source: EPA fueleconomy.gov
ConfigurationPowertrainDriveEngine / motorCityHwyCombAnnual fuel*
Sienna Hybrid 2WDHybridFWD2.5L 4-cyl + 288V Ni-MH363636$1,850
Sienna Hybrid AWDHybridAWD2.5L 4-cyl + 288V Ni-MH353635$1,900

*EPA estimate at 15,000 miles/year at EPA reference fuel and electricity prices. fueleconomy.gov record ids: 43470, 43471.

Emissions & certification

Source: EPA emission certificates
ConfigurationSmog ratingEmission standardWhere it can be sold newSmartWay
Sienna Hybrid 2WD, Sienna Hybrid AWD7 / 10California LEV-III SULEV30 / Federal Tier 3 Bin 30All 50 states (federal, all altitudes); California and states following California standardsSmartWay

Certified for all fifty states, so it can be registered new anywhere in the U.S.

The smog rating scores tailpipe pollutants other than greenhouse gases, 1 (worst) to 10 (best), and is comparable only within a model year. The standard is the federal bin or California tier the configuration was certified to. Both come from the EPA certificate behind the window sticker.

Specifications filed with NHTSA

Source: NHTSA vPIC

Dimensions Exterior

Body styleMinivan
Doors5
GVWR classClass 2E: 6,001 - 7,000 lb (2,722 - 3,175 kg)

Engine Basics

Cylinders4
Displacement2.5 L
Engine configurationIn-Line

Engine Output

Horsepower189 hp

Fuel Economy

FuelGasoline

Seating

Seat rows3
Seating capacity7 seats

Transmission

Drivetrain4x2
TransmissionContinuously Variable Transmission (CVT)

Driver assistance

Standard: Adaptive cruise control, Anti-lock brakes, Automatic emergency braking, Backup camera, Blind-spot monitoring, Electronic stability control, Forward collision warning, Lane departure warning, Lane keeping assist, Pedestrian automatic emergency braking, Rear cross-traffic alert

Filed by the manufacturer with NHTSA under the federal vehicle-identification rule and decoded from the VIN pattern — not a manufacturer press kit, so it describes the configurations we could identify rather than every trim (seen: LE, LE Plus Package, Platinum, XLE). Figures for the trim you are looking at may differ.

Dimensions & weight

Source: Transport Canada
Length203.5 in
Width (body, without mirrors)78.3 in
Height69.7 in
Wheelbase120.5 in
Track, front67.7 in
Track, rear68.5 in
Curb weight4,621–4,740 lb
Weight distribution, front/rear55/45

Measured by Transport Canada for its Canadian Vehicle Specifications database, which covers the North American versions of each model — here 2 configurations: Minivan AWD, Minivan FWD. Where a range is shown, those versions differ. Width is the body without mirrors, which is why it can read narrower than a brochure figure. Before we used it we checked it against the US manufacturer press kits we hold (27 Sep 2026): wheelbase agreed within 1% on every vehicle we could compare, length on 98%, and the curb weight fell inside the manufacturer's range on 96%. Source dataset. Contains information licensed under the Open Government Licence – Canada. Licence.

Also on file Beside the 2021 Sienna
Other years The 2026 Sienna Recalls Toyota recalls
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Factory warranty running out?

The 2021 Toyota Sienna is in the years where transmission, electronics and drivetrain repairs land on the owner. What an extended plan does and does not cover is worth reading before a dealer quotes you one.

What to check before you buy →

Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.

Recalls (4)

Source: NHTSA recall database
▲high

Equipment Adaptive/Mobility

1,019 vehicles 1% reported repaired
Problem Vantage Mobility, LLC (VM) is recalling certain 2021-2026 Honda Odyssey, 2021-2025 Chrysler Pacifica, and Toyota Sienna vehicles equipped with QRT-Deluxe and QRT-Max wheelchair restraints. The retractors may not lock, preventing the wheelchair from being properly secured. Risk An unsecured wheelchair can move during transit, increasing the risk of injury. Fix Dealers will inspect and replace the retractors, free of charge. Owner notification letters was mailed January 27, 2026. Owners may contact Vantage Mobility customer service at 1-800-488-9082.
Filed with NHTSADefect report PDFOwner letter PDF
NHTSA campaign 25V877000 reported Dec 17, 2025 Vantage Mobility the full filing, and every vehicle covered →
▲high

Seats

25TA05
167,802 vehicles 80% reported repaired
Problem Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2021-2025 Sienna Hybrid vehicles. The bolts for the seatbacks on the third-row seat assemblies may not be tightened properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 202, "Head Restraints," 207, "Seating Systems," and 225, "Child Restraint Anchorage Systems." Risk An improperly tightened seatback may not adequately restrain the occupant during a crash, increasing their risk of injury. Fix Dealers will tighten the seat assembly bolts, free of charge. Owner notification letters were mailed April 1, 2025. Owners may contact Toyota's customer service at 1-800-331-4331. Toyota's number for this recall is 25TA05.
Filed with NHTSADefect report PDFOwner letter PDFRemedy instructions PDF
NHTSA campaign 25V086000 reported Feb 13, 2025 Toyota Motor Engineering & Manufacturing the full filing, and every vehicle covered →
▲high

Air Bags

23TA15, 23LA03
999,901 vehicles 58% reported repaired
Problem Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2020-2021 Avalon, Avalon Hybrid, Corolla, Highlander, Highlander Hybrid, RAV4, RAV4 Hybrid, Lexus ES350, Lexus RX350, Lexus RX450H, 2021 Sienna Hybrid, Lexus ES250, 2020-2022 Camry, Camry Hybrid, and ES300H vehicles. A short circuit may develop in the Occupant Classification System (OCS) sensor, preventing the front passenger air bag from deploying. Risk An air bag that does not deploy during a crash increases the risk of injury. Fix Dealers will inspect and replace the sensor as necessary, free of charge. Interim letters notifying owners of the safety risk were mailed in February 2024. Some final remedy owner letters were mailed October 31, 2024. Letters will continue to be mailed in phases through January 2026. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's number for this recall is 23TB15/23TA15 Lexus 23LB03/23LA03.
Filed with NHTSARemedy instructions PDF
NHTSA campaign 23V865000 reported Dec 20, 2023 Toyota Motor Engineering & Manufacturing the full filing, and every vehicle covered →
●moderate

Electronic Stability Control (Esc)

22TA03, 22LA01
458,110 vehicles 98% reported repaired
Problem Toyota Engineering & Manufacturing (Toyota) is recalling certain 2022 Lexus LX 600, Lexus NX 350h, Lexus NX 450h+, Toytoa RAV4 Hybrid, 2021-2022 Lexus LS 500h, Toyota Mirai, RAV4 PRIME, Sienna, Venza, and 2020-2022 Toyota Highlander Hybrid vehicles. The Skid Control ECU software may not turn on the Vehicle Stability Control (VSC) system when the vehicle is restarted after the driver has disabled the VSC system. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 126, "Electronic Stability Control Systems." Risk Driving with a deactivated stability control system increases the risk of a crash. Fix Dealers will update the Skid Control ECU software, free of charge. Owner notification letters were mailed May 27, 2022. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's number for this recall is 22TA03. Lexus' number for this recall is 22LA01.
Filed with NHTSARemedy instructions PDF
NHTSA campaign 22V239000 reported Apr 13, 2022 Toyota Motor Engineering & Manufacturing the full filing, and every vehicle covered →

These are vehicle campaigns — the ones the automaker filed against this model. NHTSA also records equipment recalls, filed by a parts maker against a component (a tyre, a child seat, an aftermarket part), and those are not listed here or counted above. nhtsa.gov/recalls shows both for a VIN.

NHTSA defect investigations

Electrical System:Propulsion System — Pedestrian alert sounds closed

NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 KG or less or are defined as low-speed vehicles. The standard became fully applicable to all such vehicles manufactured on or after March 1, 2021. On January 27, 2023, NHTSA opened Defect Petition (DP) 22-005 to evaluate the subject mat

Opened Jan 27, 2023 · closed Aug 7, 2023 · action DP22005 · the investigation’s page →

Whether any of this applies to one specific Sienna

A campaign covers a build range, not a model year, so two identical-looking cars from 2021 can differ. Both of these check a VIN against the manufacturer’s own list, free, in about ten seconds. Toyota publishes its own lookup because federal rule 49 CFR 573.15 requires it to, and to keep it current to within seven days.

NHTSA VIN check →Toyota’s own VIN lookup →

Hear about a recall before the letter does

The manufacturer’s letter is the last step of a recall: it has up to 60 days after filing to mail owners, at the address on the registration. We email you the day NHTSA posts a recall on the 2021 Toyota Sienna, with what to do next. Nothing else, ever — no newsletter, no marketing, one-click unsubscribe in every message.

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Parts & accessories for the 2021 Toyota Sienna

Search by fitment on eBay Motors — OEM take-offs, aftermarket, and the trim pieces dealers no longer stock. The listing and the price are the seller's.

Find parts for this Sienna →

Owner complaints

Source: NHTSA complaint database
45complaints filed

0 involved a crash · 1 a fire · 1 injuries · 0 deaths reported

4.8 per 10,000 built · Toyota reported 94,734 Sienna built (its Early Warning production report to NHTSA)

Filed per year: 2020: 1 · 2021: 5 · 2022: 1 · 2023: 2 · 2024: 9 · 2025: 6 · 2026: 21

Most-cited components

Air Bags 13
Service Brakes 9
Visibility/Wiper 5
Structure 5
Seats 5
Electrical System 4

In owners' own words

Filed with NHTSA by the people who own these cars, one per problem area. Quoted as written, with anything identifying removed.

The contact owns a 2021 Toyota Sienna Hybrid. The contact received notification of NHTSA Campaign Number: 23V865000 (Air Bags). Upon contacting the local dealer, the contact was informed that the parts for the recall repair were on backorder. The contact had not experienced a failure related to the recall.
Air Bags Aug 6, 2025 NHTSA owner report · ODI 11678695
The contact owns a 2021 Toyota Sienna Hybrid. The contact stated that while the vehicle was parked, the contact observed a melted spot, almost identical on the driver’s and front passenger’s lower back rest on the seats. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure.
Seats at 60,000 miles Apr 1, 2025 NHTSA owner report · ODI 11652064
The contact owns a 2021 Toyota Sienna Hybrid. The contact stated that the vehicle was experiencing inaccurate fuel gauge readings. The contact stated while starting the vehicle, the fuel gauge reading displayed that the fuel tank was empty; however, while the contact was attempting to refuel the vehicle at the gas station, she became…
Electrical System at 50,300 miles Jun 24, 2024 NHTSA owner report · ODI 11596197
The contact owns a 2021 Toyota Sienna Hybrid. The contact stated that while driving at an undisclosed speed, the contact heard an abnormal splashing sound inside the vehicle. The contact stated that while the vehicle was parked, there was water coming from underneath the doors.
Structure at 22,500 miles Jun 6, 2024 NHTSA owner report · ODI 11592878
The contact owns a 2021 Toyota Sienna Hybrid. The contact stated that while depressing the brake pedal, there was a three-second delay before the brakes would respond. Additionally, the brake pedal was difficult to depress, creating an extended stopping distance.
Service Brakes at 30,800 miles Feb 2, 2023 NHTSA owner report · ODI 11505111
The contact owns a 2021 Toyota Sienna Hybrid. The contact stated that the passenger's side rearview mirror detached and the rear liftgate door inadvertently opened while parked in the garage. The vehicle was taken to the dealer but was not yet diagnosed nor repaired. The manufacturer was not made aware of the failure.
Visibility/Wiper at 9,000 miles Apr 12, 2022 NHTSA owner report · ODI 11460491

Complaint counts are raw owner reports to NHTSA, not verified defects, and scale with how many were sold. Use them to spot patterns, not to rank.

Reported by Toyota itself: 83 death-or-injury claims on this model year in its quarterly Early Warning reports to NHTSA (49 CFR 579.21): 1 killed, 120 injured, as claimed, not verified — about 88 per 100,000 built. Every Sienna model year, by year and system → Dated and by system, they are exhibit F of the defect dossier.

When owners reported it

Reported at 37k

miles, typically

Half the 12 owner reports with an odometer reading on file fall between 9,000 and 60,000 miles. That is when problems get reported, which is not the same as when they start — and not a failure rate, because nobody knows how many of these cars never had a problem at all.

Too few readings for a curve — the 12 on file: 4 under 10k, 1 20k–30k, 2 30k–40k, 1 50k–60k, 2 60k–70k, 1 80k–90k, 1 150k +.

Odometer readings as filed by owners with NHTSA. Readings under 100 or over 400,000 miles are dropped as data entry rather than history, and a component needs at least 12 readings before a median is shown for it.

Crash ratings

Source: NHTSA NCAP
ConfigurationOverallFrontalSideRolloverRollover risk
VAN AWD★★★★★★★★★☆★★★★★★★★★☆13%
VAN FWD★★★★★★★★★☆★★★★★★★★★☆14%

NHTSA New Car Assessment Program. Standard driver-assist: forward collision warning, lane departure warning, automatic emergency braking.

Driver-assist crash reports (7)

Source: NHTSA Standing General Order 2021-01
7reports filed

6 no injury reported · 1 severity unknown

Jun 2022 to Oct 2023 · 1 with an air bag deployment · 1 towed

What was engaged, and what was hit

System named: 4 (6), ADAS L2 (1)

Crash partner: Passenger Car 3 · Motorcycle 1 · Non-Motorist: Other 1 · Other 1

Filed by: May Mobility, Toyota Motor Engineering & Manufacturing

IncidentSystemStruckInjury allegedStateSpeedReport
Oct 2023ADS · 4Otherno injury reportedMN27 mph30413-6684
Aug 2023ADS · 4Passenger Carno injury reportedTX18 mph30413-6257
Jul 2023ADS · 4Pickup Truckno injury reportedMN—30413-6032
May 2023ADS · 4Non-Motorist: Otherno injury reportedMN—30413-5633
Dec 2022ADS · 4Motorcycleno injury reportedAZ—1306-4390
Sep 2022ADS · 4Passenger Carno injury reportedAZ—1306-4235
Jun 2022Level 2 · ADAS L2Passenger CarunknownTX77 mph1306-3573

From the manufacturer’s own filing

The reporting entity’s narrative as NHTSA published it, with anything identifying removed and nothing added. A narrative is a notice, written before the entity had verified what happened.

One June [redacted], 2022 Toyota received an allegation related to this crash from the owner of the vehicle through a call to the Toyota Brand Engagement Center. At the time of initial contact and description of the incident, no allegations related to the operation of Lane Trace Assist, lane centering, or ADAS L2 functions were communicated.
Toyota Motor Engineering & Manufacturing report 1306-3573 Jun 2022 NHTSA SGO filing
The May vehicle came to a gentle stop at the railroad crossing (about -0.8 m/s2 deceleration) as designed, but the agent behind did not come to a stop and made contact with the AV. The May shuttle behaved as expected and slowed down to a stop in a safe manner. The collision was unavoidable from the shuttle side
May Mobility report 30413-6032 Jul 2023 NHTSA SGO filing
This report is being submitted because May Mobility notified Toyota on Dec. 9, 2022 of 1-Day Report submission 30413-4378-1,related to an incident that occurred on Dec. [redacted], 2022. Toyota has no additional information on this incident beyond what was submitted in the aforementioned 1-Day Report.
Toyota Motor Engineering & Manufacturing report 1306-4390 Dec 2022 NHTSA SGO filing

A report under the General Order is a notice the manufacturer or operator must file within days of hearing of a crash in which a Level 2 driver-assist or automated-driving system was engaged within 30 seconds of impact. It is filed before anything is verified, and entities with telematics hear of far more crashes than entities that rely on complaints, so counts say as much about the reporting as about the car and are not comparable across makes. Nothing is normalised by fleet size. Every report on file, by make and year → · NHTSA’s page and files

Service bulletins & campaigns

Source: NHTSA manufacturer communications
Extended coverage on file 2 filings by the manufacturer with NHTSA naming this model year

The term and the vehicles it covers are the manufacturer’s, as NHTSA’s summary of each filing states them; a dealer checks one particular car by its VIN. Every Toyota warranty extension (10) → · Every warranty extension on file, all makes →

Communicationsfiled with NHTSA 176
Most recentmanufacturer date 2026-08-20
Kindsas classified by NHTSA 155 service bulletins, 12 warranty extensions, 9 service campaigns

Most often about: Electrical System, Engine, Equipment, Structure, Forward Collision Avoidance.

  • T-SB-0110-20 Rev2 Service bulletin
    2026-08-20 · Engine
  • OBSOLETE NOTICE August 20, 2026: This bulletin is now obsolete. Please see T-SB-0051-26.
  • T-SB-0051-26 Service bulletin
    2026-08-20 · Engine
  • This bulletin includes basic procedures for performing a rescue charge at battery on high voltage (HV) Ni-MH and Li-ion batteries.
  • 24TE04 Warranty extension
    2026-08-11 · Engine
  • Although the flow shut-off valve is covered by Toyota’s New Vehicle Limited Warranty for 36 months or 36,000 miles (whichever comes first), we at Toyota care about the customers’ ownership experience. Toyota is providing coverage for repairs related to Flow Shut-off Valve Coolant Leak.
  • 22TE09 Warranty extension
    2026-05-14 · Electrical System
  • Although the HV Floor Under Wire Harness and Rear Traction Motor Cable is covered by Toyota’s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever comes first), we at Toyota care about the customers’ ownership experience. Toyota is providing extended coverage under this Customer Support Program for repairs related to excessive corrosion to the wire harness connections at the Rear Mo
  • T-SB-0104-21 Rev2 Service bulletin
    2026-02-27 · Engine
  • OBSOLETE NOTICE February 27, 2026: This bulletin is no longer applicable and is now obsolete.
  • T-SB-0106-22 Rev2 Service bulletin
    2026-01-30 · Electrical System
  • OBSOLETE NOTICE January 30, 2026: This bulletin is now obsolete. Please see T-SB-0001-26.
  • T-SB-0001-26 Service bulletin
    2026-01-28 · Electrical System
  • Some 2018 – 2024 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System require a Special Service Tool (SST) USB flash drive to update the map, points of interest, and system software.
  • T-SB-0055-24 Rev2 Service bulletin
    2026-01-07 · Unknown Or Other
  • Some 2005 – 2026 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate the odor and address this condition. The purpose of this Service Bulletin is to provide general guidelines and procedures for odor remediation. This Service Bulletin provides a guide on how to prepare and treat the interi

A service bulletin is the manufacturer telling its dealers how to diagnose or repair a known condition. It is not a recall, not a finding that the vehicle is defective, and the work is not automatically free — though a bulletin is often what a dealer works from when you describe a symptom, so quoting the document number can save a diagnosis. The count is every communication filed; the list shows the most recent, one entry per campaign, because a single campaign is usually filed as several documents on the same day. The summaries are NHTSA's; the full documents come from the manufacturer.

Diagnostic trouble codes on file

Source: NHTSA manufacturer communications and complaints

Codes documented against this model year in the federal record. A code appearing here does not mean this vehicle will set it — it means the code is part of this nameplate-year's documented history.

CodeWhat it meansMost often filed underWhere it appears
B15DB
B15DB on Toyota →		Manufacturer-defined — the meaning is set by the automaker, not the standard.Equipment2 bulletins

Generic codes (the second character is 0 or 2) mean the same thing on every vehicle sold in the United States. Manufacturer-specific codes (1 or 3) mean whatever the automaker assigned, and no honest source can define them for you — which is why the ones here carry the evidence instead of a definition. A code is a link when enough separate federal documents name it across the catalogue to be worth a page of its own; the rest are listed here, where the vehicle is the context that makes them mean something.

Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.

At the New York inspection station

Source: New York State DMV

In New York’s inspection lanes over the 12 months to Oct 10, 2026, the 2021 Toyota Sienna failed the emissions check on 1.1% of first inspections — lower than the 1.9% for every 2021 model-year vehicle inspected; and the safety inspection on 1.7% (every 2021 vehicle: 1.5%).

New York inspections 1.1%

failed emissions

4,812 initial inspections of 4,720 vehicles.

MeasureThe 2021 SiennaEvery 2021 vehicleBehind it
Failed the emissions check1.1%1.9%4,797
Failed the safety inspection1.7%1.5%4,812
Air-bag warning lamp stayed lit0.15%0.19%4,812
Miles driven a year14,01910,343odometer at inspection
Average odometer74,41354,681odometer at inspection

New York’s emissions test on these model years is an on-board diagnostics check: it fails a car whose check-engine light is on or whose self-tests have not finished. First inspections only, so a car that failed and came back is counted once; private and special plates, not taxis, livery or commercial plates. A rate appears only where at least 200 inspections stand behind it. “Every 2021 vehicle” is every 2021 model-year car, SUV and pickup inspected in the same window, all makes. This is the state’s record of test results, not a reliability score by itself. Source: New York State Department of Motor Vehicles, Vehicle Inspections (data.ny.gov, Open NY terms).

Sienna by model year

all years, side by side →
Year Safety Recalls Complaints
2026 A 0 18 36 mpg2025 C 5 267 36 mpg2024 C 3 69 36 mpg2023 B 2 71 36 mpg2022 C 4 22 36 mpg2021 this page C 4 45 36 mpg2020 C 2 38 21 mpg2019 D 7 45 22 mpg2018 F 7 72 22 mpg2017 F 10 156 22 mpg2016 C 5 76 21 mpg

Common questions about the 2021 Sienna

Source: EPA, NHTSA and manufacturer press kits

Does the 2021 Toyota Sienna have any recalls?

NHTSA has posted 4 recall campaigns for the 2021 Toyota Sienna. The most serious on file is 25V877000, covering Equipment Adaptive/Mobility. 1 of them was filed with no repair available at the time — NHTSA's file records what the manufacturer had in hand on the filing date, not what exists today. Check your own VIN at nhtsa.gov/recalls; a recall applies to specific build ranges, not every car.

How safe is the 2021 Toyota Sienna?

NHTSA gave the 2021 Toyota Sienna 5 stars overall in its New Car Assessment Program tests — 4-star frontal crash, 5-star side crash, 4-star rollover. WhichTrim also grades it C (76/100) on its recall record, which is a different question from crash protection.

What is the fuel economy of the 2021 Toyota Sienna?

Across the 2 EPA-rated configurations of the 2021 Toyota Sienna, the best EPA combined figure is 36 mpg. Figures are the EPA's own, per configuration, and every one is listed above.

What are the dimensions of the 2021 Toyota Sienna?

Transport Canada measured it at 203.5 in long, 78.3 in wide (body, without mirrors), 69.7 in tall, on a 120.5 in wheelbase. Curb weight: 4,621–4,740 lb depending on configuration. Those are its measurements of the North American versions; every figure is in the table above.

What do owners complain about on the 2021 Toyota Sienna?

Owners have filed 45 complaints with NHTSA about the 2021 Toyota Sienna, most often about air bags, service brakes, visibility/wiper. Of those, 1 a fire, 1 reported injuries. Complaints are unverified owner reports, so treat the pattern as a signal and the individual report as an anecdote.

How clean is the 2021 Toyota Sienna?

The EPA smog rating for the 2021 Toyota Sienna is 7 out of 10. That score covers tailpipe pollutants other than greenhouse gases, and it only compares vehicles within the same model year. It is certified for all fifty states, so it can be registered new anywhere in the U.S. Its configurations were certified to different standards — California LEV-III SULEV30, Federal Tier 3 Bin 30 — which the table above lists per configuration.

Are there service bulletins for the 2021 Toyota Sienna?

The manufacturer has filed 176 service bulletins and related communications with NHTSA for the 2021 Toyota Sienna, most often covering electrical system, engine, equipment. The most recent is dated 2026-08-20. A bulletin is not a recall: it is the repair procedure a manufacturer sends its dealers for a condition it knows about, and the work is not automatically paid for. It is still worth knowing — if the symptom matches, quoting the bulletin number at the service desk can save a diagnosis. The document numbers and summaries are listed above.

How does the 2021 Toyota Sienna do at state inspection?

In New York’s inspection lanes over the 12 months to Oct 10, 2026, the 2021 Toyota Sienna failed the emissions check on 1.1% of first inspections — lower than the 1.9% for every 2021 model-year vehicle inspected; and the safety inspection on 1.7% (every 2021 vehicle: 1.5%). The figures are New York State DMV’s own inspection records, first inspections only, and the table above sets each one against every vehicle of the same model year.

What we hold, and what an empty row means

Paid vehicle-history reports will not tell you the difference between “nothing happened to this car” and “we never received that record” — both of the big two say as much in their own help pages. Most of what is on this page comes from complete federal registers, so we can tell you which is which, row by row.

DataHeldSourceWhat it covers — or what empty means
Fuel economy & configurations2 configurationsEPA certification recordsEvery configuration the EPA certified for sale, with its own test figures.
Emission certificates2 configurationsEPA emission certificatesSmog rating, standard and the sales area that decides where the car can be sold new.
Recalls4NHTSA recall campaignsA complete federal register: every campaign covering this model year, with severity and advisory flags.
Owner complaints45NHTSA complaint databaseAlso complete, but unverified: these are reports owners filed, not findings. Counts scale with how many were sold.
Crash ratings2 testedNHTSA NCAPOnly the configurations NHTSA chose to crash-test, which is never all of them.
Service bulletins176NHTSA manufacturer communicationsEverything the manufacturer told its dealers about a defect or malfunction, short of a recall.
Investigations1NHTSA Office of Defects InvestigationOpen and closed defect investigations, with the agency's own narrative.
Driver-assist crash reports7NHTSA Standing General Order 2021-01Crashes the manufacturer or operator reported with a Level 2 or automated-driving system engaged. Notices, filed before verification; not comparable across makes.
Specifications filed with NHTSA12 fieldsNHTSA vPIC, decoded from VIN patternsWhat the manufacturer filed under the federal VIN rule — a configuration, not the full trim ladder.
Measured dimensions7 fieldsTransport Canada, Canadian Vehicle SpecificationsLength, width, height, wheelbase, track and curb weight, measured on the North American versions.
Trims, pricing & equipmentnoneManufacturer press kitWe have not transcribed a press kit for this model year yet. This is our gap, not the manufacturer's — the one row here where an empty cell means we are behind.

Rebuilt nightly; this page was generated 2026-10-26. Every figure above is traceable to the source named beside it, and the JSON for this page carries the same values with their identifiers.

Where to go next

pages beside this one
Other years The 2026 Sienna The Sienna model year with the cleanest record on file — grade A, 0 recalls.Recalls Every Toyota recall on file All campaigns filed against Toyota vehicles, newest first, with the manufacturer's own number.Recall Watch Watch this Sienna by VIN Give it the VIN and you hear the night a campaign is filed — from $29 a month for a lot, free for ten.

Sources & method

Safety Signal starts every model-year at 100 and subtracts points per open NHTSA recall campaign by severity: critical 15 (fire risk, park-outside or do-not-drive advisories), high 8 (brakes, steering, airbags, loss of drive power, structure, battery), moderate 6, minor 3 (software, labels, lighting fixed by an update). The most serious recall counts in full and each further one counts 85% of the one before, because a vehicle sold in millions is recalled more often than a rare one without being more dangerous — and because a flat subtraction bottomed the scale out, scoring a vehicle with 22 recalls within a point of one with six. A ≥ 90, B ≥ 80, C ≥ 70, D ≥ 60, otherwise F. Read it as what it counts: recall campaigns on the federal record, weighted by severity. The damping reduces the sales bias by roughly 40% but does not remove it: like our complaint counts, this is not normalized by how many were sold, so a best-seller still scores somewhat worse than an obscure model with the same real risk. NHTSA crash ratings, do-not-drive and park-outside advisories, and the crash, fire, injury and death counts in owner complaints are reported separately on every page and never blended into the letter — a vehicle can hold five stars and a poor letter at once, and where that happens we say so rather than leave you to notice. Because the scale subtracts from a clean sheet, a model year too new to have been recalled, complained about or bulletined scores full marks on an empty record; we label those grades provisional rather than present them as earned.

EPA figures come from fueleconomy.gov vehicle records. Recalls, complaints, investigations and crash ratings come from NHTSA's public flat files, refreshed nightly.

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