2018 Toyota Sienna Problems, Complaints & Recalls
- Compared with other Sienna years
- Far fewer complaints than other years 21st of 25 for complaints
- Safety recalls
- 7 recalls: check your VIN
- NHTSA crash rating
- 5 out of 5 stars
Owners have filed 72 complaints with NHTSA about the 2018 Toyota Sienna. That ranks 21st out of 25 Sienna model years for complaints. The most reported problem area is power train (20 complaints, 28%), typically at around 35,000 miles. Complaints mention 5 crashes, 6 injuries. There are 7 safety recalls covering this model year.
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- 72owner complaints
- 7safety recalls
- 0NHTSA investigations
- 5complaints mentioning a crash
Complaints are unverified owner reports and are not adjusted for sales volume.
Most common 2018 Toyota Sienna problems
Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.
| Problem area | Complaints | Share | Median miles | Owners mention most | Typical repair cost |
|---|---|---|---|---|---|
| Power Train | 20 | 28% | 35,000 | — | — |
| Unknown or Other | 13 | 18% | 9,925 | — | — |
| Fuel/propulsion System | 9 | 13% | 35,000 | — | — |
| Electrical System | 7 | 10% | 115,576 | — | — |
| Air Bags | 5 | 7% | 60,000 | — | — |
| Engine | 5 | 7% | 26,500 | — | — |
| Structure | 5 | 7% | 8,700 | — | — |
| Vehicle Speed Control | 5 | 7% | 21,275 | — | — |
| Fuel System, Gasoline | 4 | 6% | 27,175 | — | — |
| Seats | 4 | 6% | 12,500 | — | — |
| Service Brakes | 2 | 3% | 5,018 | — | — |
| Child Seat | 1 | 1% | 71,000 | — | — |
| Equipment Adaptive/mobility | 1 | 1% | 2,000 | — | — |
| Exterior Lighting | 1 | 1% | 300 | — | — |
| Interior Lighting | 1 | 1% | 300 | — | — |
| Suspension | 1 | 1% | 55,000 | — | — |
| Tires | 1 | 1% | 30,000 | — | — |
| Visibility | 1 | 1% | 58,634 | — | — |
| Visibility/wiper | 1 | 1% | 900 | — | — |
| Wheels | 1 | 1% | — | — | — |
One complaint can list several problem areas, so shares can add up to more than 100%.
Complaints by year received
2018 Toyota Sienna recalls (7)
Tap a recall to see the problem, the risk and the fix.
Fuel system, gasoline:delivery:fuel pump
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, 2018-2019 Lexus NX300 vehicles. The low-pressure fuel pump inside the fuel tank may fail.
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 expansion of recall 20V-012. Toyota's number for this recall is 20TA02. Lexus' number for this recall is 20LA01.
Fuel system, gasoline:delivery:fuel pump
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 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.
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.
Service brakes, hydraulic:foundation components:hoses, lines/piping, and fittings
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.
Steering
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.
Equipment:other:labels
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.
Service brakes, hydraulic:foundation components:hoses, lines/piping, and fittings
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.
Wheels
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.
To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.
Recent owner reports
Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.
Whining noise when accelerating, transmission shop reported discovery of damage to transmission upon removal and inspection of transmission.
Transmission whining above 20mph. Toyota customer care program [XXX] states my vehicle falls within timeframe but dealer and corporate will not honor repairs INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
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.
Vehicle: 2018 Toyota Sienna XLE AWD, VIN [XXX], approximately 112,000 miles. Component: Power Train / Automatic Transmission (UA80F 8-speed). The vehicle has developed a pronounced whining noise from the transmission that rises with road speed, accompanied by harsh/rough shifting. A Toyota dealer…
Since owning my 2018 Toyota Sienna, I have experienced hesitation and erratic shifting with my transmission. I have the UA80E transmission which upon research others are experiencing issues with as well. It appears Toyota is not fully acknowledging the problem. The problem is a safety issue as…
Other Toyota Sienna years
| Year | Complaints | Recalls |
|---|---|---|
| 2020 Sienna | 38 | 2 |
| 2019 Sienna | 45 | 7 |
| 2018 | 72 | 7 |
| 2017 Sienna | 155 | 10 |
| 2016 Sienna | 76 | 5 |
| 2015 Sienna | 233 | 6 |
| 2014 Sienna | 163 | 6 |
| 2013 Sienna | 183 | 6 |
| 2012 Sienna | 247 | 9 |
| 2011 Sienna | 615 | 14 |
| 2010 Sienna | 172 | 8 |
| 2009 Sienna | 207 | 10 |
| 2008 Sienna | 429 | 9 |
| 2007 Sienna | 364 | 10 |
| 2006 Sienna | 1,017 | 11 |
| 2005 Sienna | 1,130 | 12 |
| 2004 Sienna | 2,062 | 10 |
| 2003 Sienna | 105 | 1 |
| 2002 Sienna | 181 | 1 |
| 2001 Sienna | 180 | 2 |
| 2000 Sienna | 363 | 1 |
| 1999 Sienna | 215 | 2 |
| 1998 Sienna | 294 | 2 |
| 1997 Sienna | 2 | 0 |
| 1996 Sienna | 3 | 0 |
See all Toyota Sienna problems by year, every Toyota model, or the Toyota VIN decoder.
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Frequently asked questions
What are the most common problems with the 2018 Toyota Sienna?
Owners most often report power train, unknown or other, fuel/propulsion system problems. The top one, power train, accounts for 20 complaints.
Was there a recall on the 2018 Toyota Sienna?
Yes, 7 safety recalls. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.
Was the 2018 Toyota Sienna a good year?
Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other Sienna model years, the 2018 has far fewer complaints than most years, and NHTSA rates it 5 out of 5 stars overall in crash tests. Always get a pre-purchase inspection and check the VIN for open recalls.