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Research · Minivan - 2WD

2018 Toyota SiennaRecalls, problems, MPG & safety

NHTSA lists 7 safety recalls and 72 owner complaints for the 2018 Toyota Sienna. Most complaints involve power train (20) and fuel/propulsion system (9). The EPA rates it 20–22 mpg combined, and NHTSA gives it 5 stars overall.

Check a VINAdd to my garage
Combined MPG
20–22mpg
EPA · 2 versions
NHTSA overall
5of 5 stars
NCAP crash tests
Safety recalls
7campaigns
Latest Nov 2020
Owner complaints
72
Top: power train
Fuel cost / yr
$2,900est.
EPA estimate, best version
01 —Recalls

Safety recalls

7 NHTSA campaigns · applies to some vehicles, check your VIN

Fuel system

Free remedy

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.

Fuel system, gasolineReported Nov 4, 2020NHTSA 20V682000

Fuel system

Free remedy

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 and RX 350. Toyota also removed the 2018-2019 Toyota 4Runner and Land Cruiser and 2018-2019 Lexus GX 460 and LX 570 and 2019 NX300 from inclusion in this recall. On March 19, 2020, Toyota expanded the recall to include 2015 Lexus GS350 vehicles. The low-pressure fuel pump inside the fuel tank may fail.

Fuel system, gasolineReported Jan 13, 2020NHTSA 20V012000

Service brakes

Free remedy

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.

Service brakes, hydraulicReported Jul 25, 2019NHTSA 19V553000
See all 7 recalls with remedies
Data from NHTSA Recalls API · synced Nov 3, 2026 · All recall detailsNHTSA vehicle page
02 —Complaints

Owner complaints by component

72 complaints filed with NHTSA · Jan 2018 – Sep 2026
  1. Power train20
  2. Fuel/propulsion system9
  3. Electrical system7
  4. Engine5
  5. Air bags5
  6. Structure5
  7. Vehicle speed control5
  8. Seats4
  9. Fuel system, gasoline4

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

By model year

Complaints for each Sienna model year we’ve synced.

View as table
Model yearNHTSA complaints
1998302
1999217
2000374
2001185
2002207
2003116
20042,062
20051,130
20061,017
2007364
2008429
2009207
2010172
2011615
2012247
2013183
2014164
2015233
201676
2017159
201872
201946
202038
20240
20250
Crashes reported
5
Fires reported
0
Injuries reported
6
Deaths reported
0
Data from NHTSA Complaints API · synced Nov 3, 2026 · Full problem breakdownNHTSA vehicle page
03 —Common problems

What owners report most

Verbatim excerpts from NHTSA complaints, by component

Power train

20 reports
“Transmission whining above 20mph. Toyota customer care program [XXX] states my vehicle falls within timeframe but dealer and corporate will not honor repairs”
Owner complaint to NHTSAFiled Sep 17, 2026Power trainODI 11764957

Fuel/propulsion system

9 reports
“Hi, I’d like to report a serious issue with my 2018 Toyota Sienna related to the recent fuel system recall. Since the repair, the vehicle has leaked all of its gasoline not once, but three separate times. One of those times, my family was inside the vehicle, and the smell of gas was overwhelming. The car wouldn’t start, and it was clearly an unsafe situation. Now the dealership is charging me $1,400 to replace the fuel pressure hose and clamp, which, after thorough research and review, appears to be directly related to the process they followed when replacing the recalled fuel pump. I’ve also tried contacting the service manager, but I haven’t received a call back. That’s why I’m now requesting that Toyota open a formal case to investigate this properly. I believe this repair should be covered, and I’m asking for support from Toyota directly.”
Owner complaint to NHTSAFiled Jul 11, 2025Fuel/propulsion systemODI 11672868

Electrical system

7 reports
“Odometer Fraud. The contact purchased a 2018 Toyota Sienna. It was discovered that there was a mileage discrepancy. The vehicle was a private sale. At the time of purchase, the mileage was 49,000. While attempting to resell the vehicle, the Auto Check report indicated that the mileage was 324,000.”
Owner complaint to NHTSAFiled Sep 2, 2026Electrical systemODI 11761644
All 2018 Sienna problemsSend a problem to a mechanic on findmechanic.ai
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 3, 2026
04 —Key specs

Engines, transmissions & drive

2 versions rated by the EPA
EPA class
Minivan - 2WD, Minivan - 4WD
Engines
3.5L 6-cyl
Transmissions
Automatic (S8)
Drive
Front-Wheel Drive · All-Wheel Drive
Fuel
Regular Gasoline

Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.

Data from EPA fueleconomy.gov · synced Nov 3, 2026EPA listing
05 —Fuel economy

EPA fuel economy by version

City / highway / combined, annual fuel cost and CO₂
EPA
VersionCityHwyComb.Fuel / yrCO₂ g/mi
Sienna 2WD
Auto (S8), 6 cyl, 3.5 L · Front-Wheel Drive
192722$2,900410
Sienna AWD
Auto (S8), 6 cyl, 3.5 L · All-Wheel Drive
182420$3,200441
  • Sienna 2WD
    Auto (S8), 6 cyl, 3.5 L
    19 city · 27 hwy · $2,900/yr
    22
    mpg comb.
  • Sienna AWD
    Auto (S8), 6 cyl, 3.5 L
    18 city · 24 hwy · $3,200/yr
    20
    mpg comb.
Estimate your fuel costCost of ownership
Data from EPA fueleconomy.gov · synced Nov 3, 2026 · Fuel cost is EPA’s annual estimate (15,000 mi, 55% city)
06 —Safety

NHTSA 5-Star Safety Ratings

2 tested variants
Overall rating
5/ 5
5 of 5
Toyota Sienna VAN FWD
Frontal crash
4 of 5
Side crash
5 of 5
Side pole
5 of 5
Rollover
4 of 5
Rollover risk
14.0%
Overall
5 / 5
Toyota Sienna VAN AWD
Frontal crash
4 of 5
Side crash
5 of 5
Side pole
5 of 5
Rollover
4 of 5
Rollover risk
14.0%
Data from NHTSA NCAP Safety Ratings API · synced Nov 3, 2026Vehicle 12338Vehicle 12337
07 —Maintenance

Maintenance basics

General guidance, not the OEM schedule. Check your owner’s manual.
General guidance
ItemMilesTimeNote
Engine oil & filter5,000–10,000 mi6–12 monthsFollow the oil-life monitor if fitted
Tire rotation5,000–7,500 miEvery oil changeCheck pressure monthly
Engine air filter15,000–30,000 mi1–2 yearsSooner in dusty areas
Cabin air filter15,000–25,000 mi1–2 years
Brake fluid—2–3 yearsAbsorbs moisture over time
Coolant60,000–100,000 mi5–10 yearsLong-life coolants last longer
Spark plugs60,000–100,000 mi—Iridium/platinum plugs at the long end
12V battery—3–5 yearsHeat shortens battery life
  • Engine oil & filter5,000–10,000 mi
    6–12 months
  • Tire rotation5,000–7,500 mi
    Every oil change
  • Engine air filter15,000–30,000 mi
    1–2 years
  • Cabin air filter15,000–25,000 mi
    1–2 years
  • Brake fluid—
    2–3 years
  • Coolant60,000–100,000 mi
    5–10 years
  • Spark plugs60,000–100,000 mi
    —
  • 12V battery—
    3–5 years
Typical intervals for modern cars. Severe service (towing, short trips, extreme heat or cold) shortens them.
09 —FAQ

2018 Sienna questions

How many recalls does the 2018 Toyota Sienna have?

7 safety recalls as of Nov 3, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.

What are the most common 2018 Toyota Sienna problems?

Owners filed 72 complaints with NHTSA. The most-cited components are power train (20), fuel/propulsion system (9), electrical system (7). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.

What MPG does the 2018 Toyota Sienna get?

The EPA rates the 2018 Toyota Sienna at 20–22 mpg combined, depending on engine and drivetrain (2 versions rated).

How safe is the 2018 Toyota Sienna?

NHTSA's New Car Assessment Program gives the 2018 Toyota Sienna 5 out of 5 stars overall.

Data from NHTSA & EPA · synced Nov 3, 2026