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Your vehicleHome›Toyota›Sienna› 2018
Toyota · Minivan

2018 Toyota Sienna

Gas
Minivan - 2WD
2 EPA-rated configurations
Data refreshed 2026-10-26
F
Safety Signal
59 / 100 from the NHTSA recall record
Counts recalls, not crash safety — this vehicle earned 5 of 5 stars from NHTSA. A much-recalled best-seller scores low here; see the methodology.
Recalls1 critical 7
Complaints5 crash · 6 injured reported 72
Crash ratingNHTSA overall 5★
Fuel economybest combined, EPA 22 mpg
20262025202420232022202120202019201820172016

The 2018 Toyota Sienna is sold in the U.S. as a gas minivan with 2 EPA-rated configurations. The most efficient version, the Sienna 2WD, is EPA-rated at 22 mpg combined. NHTSA lists 7 recall campaigns for this model year, 1 rated critical, which gives it a Safety Signal grade of F. Owners have filed 72 complaints, most often about the power train. 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 2WDGasFWD3.5L 6-cyl192722$3,050
Sienna AWDGasAWD3.5L 6-cyl182420$3,350

*EPA estimate at 15,000 miles/year at EPA reference fuel and electricity prices. fueleconomy.gov record ids: 39726, 39727.

Emissions & certification

Source: EPA emission certificates
ConfigurationSmog ratingEmission standardWhere it can be sold newSmartWay
Sienna 2WD5 / 10California LEV-III ULEV70 / Federal Tier 3 Bin 70All 50 states (federal, all altitudes); California and states following California standards—
Sienna AWD5 / 10Federal Tier 3 Bin 70 / California LEV-III ULEV70All 50 states (federal, all altitudes); California and states following California standards—

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 1D: 5,001 - 6,000 lb (2,268 - 2,722 kg)

Engine Basics

Cylinders6
Displacement3.5 L
Engine configurationV-Shaped

Engine Output

Horsepower296 hp

Fuel Economy

FuelGasoline

Seating

Seat rows3
Seating capacity7 seats

Transmission

Drivetrain4WD/4-Wheel Drive/4x4
TransmissionAutomatic
Transmission speeds8

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

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: L, LE, SE/SE Premium, XLE/XLE Premium/Ltd/Ltd Premium). Figures for the trim you are looking at may differ.

Dimensions & weight

Source: Transport Canada
Length200.0 in
Width (body, without mirrors)78.0 in
Height70.9–71.3 in
Wheelbase119.3 in
Track, front67.7 in
Track, rear67.7 in
Curb weight4,431–4,663 lb
Weight distribution, front/rear56/44 to 57/43

Measured by Transport Canada for its Canadian Vehicle Specifications database, which covers the North American versions of each model — here 3 configurations: AWD V6, Base/Le FWD, Se/Limited 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 2018 Sienna
Other years The 2026 Sienna Recalls Toyota recalls
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Factory warranty running out?

The 2018 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 (7)

Source: NHTSA recall database
▲high

Fuel System, Gasoline

20TA02, 20LA01
1,525,742 vehicles 92% reported repaired
Problem 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, Risk If the fuel pump fails, the engine can stall while driving, increasing the risk of a crash. Fix 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
Filed with NHTSARemedy instructions PDF
NHTSA campaign 20V682000 reported Nov 4, 2020 Toyota Motor Engineering & Manufacturing the full filing, and every vehicle covered →
▲high

Fuel System, Gasoline

20TB02/20TA02/20LB01
1,830,752 vehicles 92% reported repaired
Problem Toyota Motor Engineering & Manufacturing (Toyota) recalled certain 2018-2019 4Runner, Highlander, Camry, Land Cruiser, Sequoia, Sienna, Tacoma and Tundra, and Lexus RC 300, RC 350, GS 350, GX 460, IS 300, LC 500, LS 500, LX 570, RX 350L, and 2019 Toyota Avalon and Corolla, and certain Lexus NX 300, and ES 350 vehicles on January 13, 2020. On March 4, 2020, Toyota expanded the recall to include certain 2014-2015 Toyota 4Runner and Land Cruiser, 2018 Avalon, Corolla, 2014 FJ Cruiser, 2017 Sienna and Lexus 2018 ES 350, 2018-2019 GS 300, 2013-2014 GS350, 2014-2015 GX 460, IS 350 and LX 570, 2014 IS F, 2018-2019 IS 350, LC 500H and LS 500H, 2013-2015 LS 460, 2015 NX 200T and RC350, 2017 RC 200T Risk If the fuel pump fails, the engine can stall while driving, increasing the risk of a crash. Fix Toyota will notify owners, and dealers will replace the fuel pump, free of charge. The recall began May 4, 2020. Owners may contact Toyota customer service at 1-888-270-9371 or Lexus customer service at 1-800-255-3987. Toyota's numbers for this recall are 20TB02 and 20TA02 for Toyota vehicles and 20LB01 and 20LA01 for Lexus vehicles.
Filed with NHTSAOwner letter PDFRemedy instructions PDF
NHTSA campaign 20V012000 reported Jan 13, 2020 Toyota Motor Engineering & Manufacturing the full filing, and every vehicle covered →
▲high

Service Brakes, Hydraulic

303 vehicles 50% reported repaired built Jan 1, 2015 – Nov 1, 2018
Problem Vantage Mobility International, LLC (Vantage) is recalling certain 2012-2018 AMS Genesis wheelchair vans, built on a Toyota Sienna vehicles. The rubber brake hoses that attach to the rear wheel assembly may be too short, causing them to rub against the rear axle trailing arm. Risk The contact may cause failure of the rear brake hoses, resulting in a loss of vehicle control and reduced braking ability, increasing the risk of a crash. Fix Vantage will notify owners, and dealers will install a set of rear brake hoses that will provide the proper clearance, free of charge. The recall began December 16, 2019. Owners may contact Vantage customer service at 1-800-488-9082.
Filed with NHTSAOwner letter PDF
NHTSA campaign 19V553000 reported Jul 25, 2019 Vantage Mobility International, LLC the full filing, and every vehicle covered →
!critical

Steering

595 vehicles 86% reported repaired built Feb 20, 2019 – Jul 8, 2019
Problem 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. Fix 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.
Filed with NHTSARemedy instructions PDF
NHTSA campaign 19V532000 reported Jul 16, 2019 Braun Corporation the full filing, and every vehicle covered →
○minor

Equipment

SET19A
1,325 vehicles 100% reported repaired built Dec 19, 2016 – Feb 22, 2019
Problem Southeast Toyota Distributors, LLC (SET) is recalling certain 2017-2019 Toyota Camry, Corolla, Rav4, Sienna, and Yaris iA vehicles equipped with factory-installed floor mats. The load carrying capacity modification label may be incorrect. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 110, "Tire Selection and Rims." Risk An incorrect label may lead to unintentionally overloading the vehicle, increasing the risk of a crash. Fix SET will notify owners and provide a corrected label for placement over the inaccurate label, free of charge. The recall began August 23, 2019. Owners may contact Toyota customer service at 1-888-270-9371. SET's number for this recall is SET19A.
Filed with NHTSAOwner letter PDFRemedy instructions PDF
NHTSA campaign 19V503000 reported Jun 28, 2019 Southeast Toyota Distributors, LLC the full filing, and every vehicle covered →
▲high

Service Brakes, Hydraulic

705 vehicles 48% reported repaired built Jan 9, 2018 – May 20, 2019
Problem Braun Corporation (Braun) is recalling certain 2014-2019 Toyota Sienna mobility van conversions. The brake lines may have incorrect tube nut fittings installed, which may cause a pressure drop within the braking system. Risk The reduction in the braking system pressure may cause a loss of braking power in the rear braking system, increasing the risk of crash. Fix Braun has notified owners, and dealers will install an adaptor to correct the issue, free of charge. The recall began June 25, 2019. Owners may contact Braun customer service at 1-800-488-0359.
Filed with NHTSARemedy instructions PDF
NHTSA campaign 19V410000 reported Jun 4, 2019 Braun Corporation the full filing, and every vehicle covered →
▲high

Wheels

J0J
55 vehicles 91% reported repaired built Jan 5, 2018 – Jan 15, 2018
Problem Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2018 Toyota Sienna vehicles built with a specific lot of 10-spoke alloy wheels from one production facility. These wheels may not have been properly cooled during manufacturing. As a result, the wheels may crack in the spokes from an impact while driving. Risk If the wheels crack at the spokes, the wheel may separate from the hub assembly causing a loss of vehicle control and increasing the risk of a crash. Fix Toyota began notifying owners initially by phone on February 26, 2018 and will mail letters to any unnotified owner starting on April 20, 2018. Dealers will inspect the wheels and replace them if necessary depending on their production location, free of charge. Owners may contact Toyota customer service at 1-888-270-9371. Toyota's number for this recall is J0J.
Filed with NHTSAOwner letter PDFRemedy instructions PDF
NHTSA campaign 18V130000 reported Feb 22, 2018 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.

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 2018 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 2018 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 2018 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
72complaints filed

5 involved a crash · 0 a fire · 6 injuries · 0 deaths reported

10 per 10,000 built · Toyota reported 70,738 Sienna built (its Early Warning production report to NHTSA)

Filed per year: 2018: 9 · 2019: 8 · 2020: 18 · 2021: 9 · 2022: 3 · 2023: 4 · 2024: 7 · 2025: 5 · 2026: 9

Most-cited components

Power Train 20
Unspecified 13
Fuel/Propulsion System 13
Electrical System 7
Structure 5
Engine 5

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 2018 Toyota Sienna. The contact stated that while driving approximately 20 MPH, the master warning light illuminated and the vehicle stalled. The cause of the failure was not determined. An unknown dealer was notified of the failure. The manufacturer was not notified.
Electrical System at 56,000 miles Jun 29, 2020 NHTSA owner report · ODI 11331502
The contact owns a 2018 Toyota Sienna. The contact received notification of NHTSA campaign number: 20v012000 (fuel system, gasoline) however, the part to do the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue.
Fuel/Propulsion System Jun 4, 2020 NHTSA owner report · ODI 11327232
The consumer owns a 2018 Toyota Sienna. The consumer stated while the vehicle was at a stand still, when all four rear driver and passenger seats began to move independently forward.
Seats at 1,000 miles Mar 18, 2020 NHTSA owner report · ODI 11318609
The contact owns a 2018 Toyota Sienna. While driving at low speeds making a right turn the oil warning indicator light illuminated and contact noticed the oil was low. The vehicle was repaired however, the failure recurred. The manufacturer was contacted but no further assistance was provided. The failure mileage was 3,700.
Engine at 37,000 miles Jan 23, 2020 NHTSA owner report · ODI 11301350
Delay in downshifting when throttle is pressed. A delay of 1 to 2 seconds occurs then abruptly downshifts and the engines revs loudly
Power Train at 35,000 miles Aug 11, 2019 NHTSA owner report · ODI 11243088
The automatic sliding doors do not have an auto/emergency stop if something impedes their shutting. A child can get crushed if an adult is not there to stop the doors. Even though I was there it was very hard for me (an adult) to stop the doors from closing.
Structure at 8,700 miles Sep 18, 2018 NHTSA owner report · ODI 11130170

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: 56 death-or-injury claims on this model year in its quarterly Early Warning reports to NHTSA (49 CFR 579.21): 78 injured, as claimed, not verified — about 79 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 30k

miles, typically

Half the 37 owner reports with an odometer reading on file fall between 5,000 and 56,000 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.

under 10k 13
10k–20k 3
20k–30k 2
30k–40k 7
40k–50k 0
50k–60k 4
60k–70k 2
70k–80k 1
80k–90k 0
90k–100k 0
100k–150k 3
150k + 2

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★★★★★★★★★☆★★★★★★★★★☆14%
VAN FWD★★★★★★★★★☆★★★★★★★★★☆14%

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

Service bulletins & campaigns

Source: NHTSA manufacturer communications
Communicationsfiled with NHTSA 300
Most recentmanufacturer date 2026-01-30
Kindsas classified by NHTSA 299 service bulletins, 1 service campaign

Most often about: Equipment, Electrical System, Structure, Engine, Power Train.

  • 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
  • T-TT-0790-25 Service bulletin
    2025-08-20 · Electrical System
  • Some customers may experience echoing on the line calling the vehicle when using Bluetooth Hands Free. This is caused by the phone Hands Free volume being too low.
  • T-SB-0058-23 Rev1 Service campaign
    2025-06-13 · Electrical System
  • The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. The procedures outlined in this Service Bulletin aid in locating, inspecting, and repairing refrigerant leaks.
  • T-TT-0780-25 Service bulletin
    2025-04-02 · Electrical System
  • To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. The following steps are instructions on how to retrieve the data from the system and are only to be used when requested by FTS and/or FPE.
  • T-SB-0106-22 Rev2 Service bulletin
    2025-02-11 · 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. The SST is used with applicable vehicles to deliver the update, however, the process for generating license keys differs from previous generations.
  • T-SB-0039-24 Rev2 Service bulletin
    2024-12-06 · Structure — Body
  • The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds. If these contaminants settle and remain on a painted vehicle surface, especially the horizonal areas of the hood, roof, and decklid, significant damage can occur. This damage is the result of actual etching of the paint

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
B1321
B1321 on Toyota →		Manufacturer-defined — the meaning is set by the automaker, not the standard.Equipment6 bulletins
B15FE
B15FE on Toyota →		Manufacturer-defined — the meaning is set by the automaker, not the standard.Equipment6 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 2018 Toyota Sienna failed the emissions check on 1.3% of first inspections — lower than the 3.0% for every 2018 model-year vehicle inspected; and the safety inspection on 1.6% (every 2018 vehicle: 1.9%).

New York inspections 1.3%

failed emissions

3,619 initial inspections of 3,542 vehicles.

MeasureThe 2018 SiennaEvery 2018 vehicleBehind it
Failed the emissions check1.3%3.0%3,611
Failed the safety inspection1.6%1.9%3,619
Air-bag warning lamp stayed lit0.14%0.22%3,619
Miles driven a year11,47610,002odometer at inspection
Average odometer95,06882,833odometer 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 2018 vehicle” is every 2018 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 C 4 45 36 mpg2020 C 2 38 21 mpg2019 D 7 45 22 mpg2018 this page F 7 72 22 mpg2017 F 10 156 22 mpg2016 C 5 76 21 mpg

Common questions about the 2018 Sienna

Source: EPA, NHTSA and manufacturer press kits

Does the 2018 Toyota Sienna have any recalls?

NHTSA has posted 7 recall campaigns for the 2018 Toyota Sienna, 1 of them rated critical. The most serious on file is 19V532000, covering Steering. Check your own VIN at nhtsa.gov/recalls; a recall applies to specific build ranges, not every car.

How safe is the 2018 Toyota Sienna?

NHTSA gave the 2018 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 F (59/100) on its recall record, which is a different question from crash protection.

What is the fuel economy of the 2018 Toyota Sienna?

Across the 2 EPA-rated configurations of the 2018 Toyota Sienna, the best EPA combined figure is 22 mpg. Figures are the EPA's own, per configuration, and every one is listed above.

What are the dimensions of the 2018 Toyota Sienna?

Transport Canada measured it at 200.0 in long, 78.0 in wide (body, without mirrors), 70.9–71.3 in tall, on a 119.3 in wheelbase. Curb weight: 4,431–4,663 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 2018 Toyota Sienna?

Owners have filed 72 complaints with NHTSA about the 2018 Toyota Sienna, most often about power train, unspecified, fuel/propulsion system. Of those, 5 involved a crash, 6 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 2018 Toyota Sienna?

The EPA smog rating for the 2018 Toyota Sienna is 5 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 ULEV70, Federal Tier 3 Bin 70 — which the table above lists per configuration.

Are there service bulletins for the 2018 Toyota Sienna?

The manufacturer has filed 300 service bulletins and related communications with NHTSA for the 2018 Toyota Sienna, most often covering equipment, electrical system, structure. The most recent is dated 2026-01-30. 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 2018 Toyota Sienna do at state inspection?

In New York’s inspection lanes over the 12 months to Oct 10, 2026, the 2018 Toyota Sienna failed the emissions check on 1.3% of first inspections — lower than the 3.0% for every 2018 model-year vehicle inspected; and the safety inspection on 1.6% (every 2018 vehicle: 1.9%). 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.
Recalls7NHTSA recall campaignsA complete federal register: every campaign covering this model year, with severity and advisory flags.
Owner complaints72NHTSA 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 bulletins300NHTSA manufacturer communicationsEverything the manufacturer told its dealers about a defect or malfunction, short of a recall.
InvestigationsnoneNHTSA Office of Defects InvestigationNo defect investigation has been opened.
Driver-assist crash reportsnoneNHTSA Standing General Order 2021-01No report has been filed. Only entities named in the order report, and only crashes they hear of — so this is also what an unequipped car, or a manufacturer without telematics, looks like.
Specifications filed with NHTSA13 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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