2018 Toyota Sienna problems and recalls

Owners have filed 70 complaints on the 2018 Toyota Sienna, and NHTSA has issued 7 recalls. The most cited component is the Power Train (18 complaints).

70
Complaints
7
Recalls
5
Crash reports
0
Fire reports
6
Injuries
75.9
Severity index

Severity index 75.9 Medium. The index weights crashes, fires, injuries and fatalities per 100 complaints. How it is calculated.

Middle half of all tracked vehiclesThis vehicle: 75.9p25 46p75 80cleanestworst
Severity index against the quartile range for all tracked vehicles.

Ranked 27 of 122 by severity index among 2018 vehicles with at least 40 complaints, highest first. 78% of those vehicles scored lower. Full 2018 ranking.

Components cited in complaints

Power TrainPower Train: 18 complaints (25.7%)18 26%Unknown Or OtherUnknown Or Other: 13 complaints (18.6%)13 19%Fuel/Propulsion SystemFuel/Propulsion System: 9 complaints (12.9%)9 13%Electrical SystemElectrical System: 7 complaints (10.0%)7 10%EngineEngine: 5 complaints (7.1%)5 7%Air BagsAir Bags: 5 complaints (7.1%)5 7%StructureStructure: 5 complaints (7.1%)5 7%Vehicle Speed ControlVehicle Speed Control: 5 complaints (7.1%)5 7%
A single complaint can cite more than one component, so shares total over 100%.
ComponentComplaintsShare of complaints citing it
POWER TRAIN1825.7%
UNKNOWN OR OTHER1318.6%
FUEL/PROPULSION SYSTEM912.9%
ELECTRICAL SYSTEM710.0%
ENGINE57.1%
AIR BAGS57.1%
STRUCTURE57.1%
VEHICLE SPEED CONTROL57.1%

Complaints filed per year

09182018: 92019: 82020: 182021: 92022: 32023: 42024: 72025: 52026: 7 (partial year)18192018212223242526
Complaints by the calendar year they were filed. The hatched bar is the current year to date.
YearComplaints
20189
20198
202018
20219
20223
20234
20247
20255
2026 (year to date)7
Filings in 2023 to 2025 ran 0.5x those in 2020 to 2022 (16 against 30).

Recall campaigns

CampaignReportedComponentSummary
20V68200004/11/2020FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMPToyota 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,
20V01200013/01/2020FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMPToyota 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 ce
19V53200016/07/2019STEERINGBraun 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.
19V41000004/06/2019SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGSBraun 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.
19V50300028/06/2019EQUIPMENT:OTHER:LABELSSoutheast 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
19V55300025/07/2019SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGSVantage 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.
18V13000022/02/2018WHEELSToyota 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 c

Other Toyota Sienna model years

Severity index for every other model year on file. Compare all 9 years side by side.

Source. NHTSA public complaint and recall APIs (api.nhtsa.gov), retrieved 2026-09-05. Complaints are unverified consumer reports. Totals vary with units sold and years on the road. Not affiliated with NHTSA or any manufacturer.